tag:blogger.com,1999:blog-9056301617904321552024-03-08T14:13:52.307-08:00Nick Hart's Astronomical Images from a light-polluted siteastroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comBlogger261125tag:blogger.com,1999:blog-905630161790432155.post-23634199131883194302024-03-08T14:12:00.000-08:002024-03-08T14:12:56.843-08:00Thor's Helmet<p>The following images of NC2359. Thor's' Helmet 'was taken on 9 seperate evenings with additional data added, an extra 55 minutes using a blue filter, 1 hour using a H Beta filter and 2.5 hours using an O111 filter. I also used a high pass with an unsharp mask filter to enhance the central detail. Notice the bright star in the centre, a Wolf-Rayet star.</p><p style="text-align: center;"><span style="font-size: medium;">RGB</span></p><p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSn1TytG-i4XLpAVwLqQ91q7bvZmWqnW4QT2fce-XqqIyXLKFe88zzw7XQIip24qSJWZwiDsbVCEGvutoAUtVPxP5ABQQ2_Z448PDTyQoBdf-9hmUhhyqTrJ-dI0svjRwHTVxXNr9uv3A6cS3M_ziwWTTk8-hNOeoqelmEAElqkCVT2ooD8uyhLsYelw/s2796/NGC2359%20%20.%20%2026-2-24%20RGB.%207..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2180" data-original-width="2796" height="498" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSn1TytG-i4XLpAVwLqQ91q7bvZmWqnW4QT2fce-XqqIyXLKFe88zzw7XQIip24qSJWZwiDsbVCEGvutoAUtVPxP5ABQQ2_Z448PDTyQoBdf-9hmUhhyqTrJ-dI0svjRwHTVxXNr9uv3A6cS3M_ziwWTTk8-hNOeoqelmEAElqkCVT2ooD8uyhLsYelw/w640-h498/NGC2359%20%20.%20%2026-2-24%20RGB.%207..jpg" width="640" /></a></div><p><br /></p><div style="text-align: center;"><span style="font-size: large;"> Cropped RGB image</span></div><p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjYHBZ-SmJSuAeq6bQAtn1bXMtpEAKADv5Eel0GoUm2wP2cTaN4vYbVBV3ZIMkLvfuhoO7xyqKSsfCzATatQB9x5wVN7U590ee0nBQxedvJCUTrhwCOwcXy8sVcFiBBxXz3zwPWwrSRYqAoJfazxwSkJHJ8SHVgt1ytRAWtXW5MXqaJKhvZMFjl4mcxmA/s2284/NGC2359%20%20.%20%2026-2-24%20%20Hubble%20palette..cropedjpg.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2284" data-original-width="1825" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjYHBZ-SmJSuAeq6bQAtn1bXMtpEAKADv5Eel0GoUm2wP2cTaN4vYbVBV3ZIMkLvfuhoO7xyqKSsfCzATatQB9x5wVN7U590ee0nBQxedvJCUTrhwCOwcXy8sVcFiBBxXz3zwPWwrSRYqAoJfazxwSkJHJ8SHVgt1ytRAWtXW5MXqaJKhvZMFjl4mcxmA/w512-h640/NGC2359%20%20.%20%2026-2-24%20%20Hubble%20palette..cropedjpg.jpg" width="512" /></a></div><br /><p style="text-align: center;"><span style="font-size: medium;">Hubble Palette</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOeBh5lc4iibrCLQoIKmPlGuS8bfe4sSCbD-_ZwpKYRfnR3URbzSbrTgQ8I3XLpHDDaFrJkwmp0qO5D-rGnbuzUy2WFSchAcopiaXD5dKH6X6tyF_t_3Tgkl9AS4eQj_9dIl_MqgvOYAH1TRepfJ1_QVrlPMIGJ4V-KcuPbHPztF2kt5UXU6LXFYx1Tg/s2796/NGC2359%20%20.%20%2026-2-24%20%20Hubble%20palette..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2180" data-original-width="2796" height="498" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOeBh5lc4iibrCLQoIKmPlGuS8bfe4sSCbD-_ZwpKYRfnR3URbzSbrTgQ8I3XLpHDDaFrJkwmp0qO5D-rGnbuzUy2WFSchAcopiaXD5dKH6X6tyF_t_3Tgkl9AS4eQj_9dIl_MqgvOYAH1TRepfJ1_QVrlPMIGJ4V-KcuPbHPztF2kt5UXU6LXFYx1Tg/w640-h498/NGC2359%20%20.%20%2026-2-24%20%20Hubble%20palette..jpg" width="640" /></a></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-62789152532699623982024-03-02T07:52:00.000-08:002024-03-02T07:52:53.498-08:00M42 and Thor's Helmet<p>This image of M42 contains old and new data. 30 minutes using RGB filters, 6 hours and 10 minutes using a H A filter, 2 hours and 45 minutes using an O111 filter. 2 hours and 10 minutes using a S11 filter and an additional 60 minutes using a H Beta filter . The data were captured using a 4 inch F/6.3 refractor , a Vixen Atlux mount and an Atik 383L mono CCD camera .</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKxdlGz5wOuecIUJ3XfN3WAxlY9RH3n39IGUSK4DfelH9FCMBEULR_kFf-4eGNrnLZN8BumK8yoSgxCz3mCqo5QqRjPrKB0WqeRCNrYECkHtjaeZST1zojSuxS5a36sHo_6uFZvhqFTDIVi-UaDw_e207RAsD-PxyI2uyPanE47jWOhIERg_122rOMFA/s2970/narrowband%20data%20%20m42.plus%20h%20beta..9..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2970" data-original-width="2340" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKxdlGz5wOuecIUJ3XfN3WAxlY9RH3n39IGUSK4DfelH9FCMBEULR_kFf-4eGNrnLZN8BumK8yoSgxCz3mCqo5QqRjPrKB0WqeRCNrYECkHtjaeZST1zojSuxS5a36sHo_6uFZvhqFTDIVi-UaDw_e207RAsD-PxyI2uyPanE47jWOhIERg_122rOMFA/w504-h640/narrowband%20data%20%20m42.plus%20h%20beta..9..jpg" width="504" /></a></div><p><br /></p><p>NGC2359 . Thor 's Helmet nebula. This emission nebula lies in the constellation of Canis Major at about 11.000 light years away from us and is about 25 - 30 light years across . I took this image on 4 separate evenings using my 10 inch f/4.8 reflector, a Vixen Atlux mount, PHD auto guiding, a set of Astronomik RGB and narrowband filters , HA. O111 , S11. I captured 5 minute sub frames with matching dark frames and combined them with flat field frames to reduce the effect of noise and vignetting in the final image. The total exposure time was 3 hours 30 minutes using a H A filter, 90 minutes using a S11 filter, 1 hour using an O111 filter and ten minutes using a blue filter. A total exposure time of 6 hours and 10 minutes.</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDmdFl0IS5TfKcLFGIpdyBKky_4lSr8cDmuJmQJkPUQVRcuMzVeWpXfA9OlNzFTKctCvKAamZ9EOgknoJMoesARktlxiQ4gvQDs6vfCsb7_XFCFkrmI3YEIbqOyBrSxzpSL5jLHvLTOtcijTuX536yuNhLowZuLwnpkN03uluNu8VPu45JpLsZ-xvWjw/s2928/NGC2359%20%20.%20%2026-2-24%20%20Hubble%20palette..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2352" data-original-width="2928" height="514" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDmdFl0IS5TfKcLFGIpdyBKky_4lSr8cDmuJmQJkPUQVRcuMzVeWpXfA9OlNzFTKctCvKAamZ9EOgknoJMoesARktlxiQ4gvQDs6vfCsb7_XFCFkrmI3YEIbqOyBrSxzpSL5jLHvLTOtcijTuX536yuNhLowZuLwnpkN03uluNu8VPu45JpLsZ-xvWjw/w640-h514/NGC2359%20%20.%20%2026-2-24%20%20Hubble%20palette..jpg" width="640" /></a></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-89418978235823485632024-01-25T05:51:00.000-08:002024-01-25T05:51:31.026-08:00Using a Bahtinov mask for focusing<p style="text-align: center;"><span style="font-size: medium;"> A Bahtinov mask in use.</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDX4xIo4PVqRXoSMUsGZTP15u1v3lZzGlhW8JGk0lKra-TKDgdpymVxqIO11-8OM66kLoNIsloAkMZumQ_rkY_jD5VHoaalc8iFs7Pds5oGXXlPAdoHNT95tnwIY7WFQREuGOGoohNCvpkbf97syK_oFqQTbe9Fp-3ePiox2G2Fp_MF5Ao7e6-6PUnfA/s3192/focus%20mask..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3192" data-original-width="2100" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDX4xIo4PVqRXoSMUsGZTP15u1v3lZzGlhW8JGk0lKra-TKDgdpymVxqIO11-8OM66kLoNIsloAkMZumQ_rkY_jD5VHoaalc8iFs7Pds5oGXXlPAdoHNT95tnwIY7WFQREuGOGoohNCvpkbf97syK_oFqQTbe9Fp-3ePiox2G2Fp_MF5Ao7e6-6PUnfA/w421-h640/focus%20mask..jpg" width="421" /></a></div><div><br /></div>Click on the image to get a closer view.<br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-46227266173369674252024-01-24T09:49:00.000-08:002024-01-24T09:49:28.755-08:00B33. The Horsehead Nebula. <p>B33. The Horsehead Nebula. This part of the night sky is my favorite. It lies about 1 degree south of the bright star Alnitak the most eastern star on Orion's belt at a distance of 1,500 light years. It is also very challenging to see visually. I can only truly say I have seen once on a very clear moonless night up in the Brecon Beacons national park using a ten inch reflector, a 40mm eyepiece and a Lumicon H Beta filter. However it is not that difficult to image, especially when using narrowband filters, evern in an urban site. The equipment I was using when I was imaging was my 4 inch f/6.3 refractor, a Vixen atlux mount. PHD auto guiding, an Atik 383L mono CCD camera and a set of Astronomik narrowband and RGB filters. I set the camera on X2 bin mode To increase the sensitivity of the camera and captured two minute sub frames. I then combined this data with matching dark frames and flat field frames to reduce the effect of noise and vignetting in the final image. The total exposure time was 1 hour using a blue filter, 1 hour using a H Beta filter, 2 hours and 50 minutes using an O111 filter, 3 hours and 50 minutes using an S11 filter and 13 hours and 7 minutes using a H Alpha filter.</p><p style="text-align: center;"><span style="font-size: medium;">RGB plus narrowband colour</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5YZyX3H1IqM0vr8zmt6S_7dxHY7DyjSLrTxtS-Es9jcnBHhhERDHP41ZTTHVQOhiG2yahR5z_HWXQlmV7h4isJKTiw3fp2LLu50WGtf1J8Lz0STlvY4K7k2LaO5Qyf0XXKbLUk2iFA_hOPB7QSxCKLu__E-G9fhVPBY9PXRsgnh8YZjUIU_06mvuWiA/s3224/B33%20%20RGB%20.%20plus%20narrowband%20colour.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2336" data-original-width="3224" height="464" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5YZyX3H1IqM0vr8zmt6S_7dxHY7DyjSLrTxtS-Es9jcnBHhhERDHP41ZTTHVQOhiG2yahR5z_HWXQlmV7h4isJKTiw3fp2LLu50WGtf1J8Lz0STlvY4K7k2LaO5Qyf0XXKbLUk2iFA_hOPB7QSxCKLu__E-G9fhVPBY9PXRsgnh8YZjUIU_06mvuWiA/w640-h464/B33%20%20RGB%20.%20plus%20narrowband%20colour.jpg" width="640" /></a></div><div><br /></div><span style="font-size: medium;"><div style="text-align: center;">RGB combined with the Hubble Palette</div></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYVGYOIJu_lQc1WQj5rVDuwAETZtOSwGvNULXabZZ7NMcG2NxA-7I6VYlCBqgKPCxhmfZsRqL4vohId80uvDu7zw6-8WRsDHlH3gP1F4H500xGc5g-5QR-E7eOwReyj2jG1HFtPUuSf1zNbOn9-T44E_MFynSw9SBmQ6lWgI1FRFILaTMKxODCHgRuNg/s3224/B33%20%20RGB%20combined%20with%20HUBBLE%20PALETTE.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2336" data-original-width="3224" height="464" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYVGYOIJu_lQc1WQj5rVDuwAETZtOSwGvNULXabZZ7NMcG2NxA-7I6VYlCBqgKPCxhmfZsRqL4vohId80uvDu7zw6-8WRsDHlH3gP1F4H500xGc5g-5QR-E7eOwReyj2jG1HFtPUuSf1zNbOn9-T44E_MFynSw9SBmQ6lWgI1FRFILaTMKxODCHgRuNg/w640-h464/B33%20%20RGB%20combined%20with%20HUBBLE%20PALETTE.jpg" width="640" /></a></div><div><br /></div><span style="font-size: medium;"><div style="text-align: center;">Hubble Palette</div></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioAoLpuSK9W8q0tTa-cxbnPpOZ8NQdGA-mJS27zaQQ0Rv4B0C2E0br782-1YJXLpKZbbOYQPStxAk90YIyk_8cdDUUl65VzzkB1ayhcO6cX7TurEZo3mRXPcNYPEstrpxf3yotK4mEmI5JGrPLLZS4wk410qXHUz7ydu1cRWpegnBPXtWxm4beb0cLeQ/s3224/HUBBLE%20PALETTE%20,%20RAW%20LUM.%204..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2336" data-original-width="3224" height="464" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioAoLpuSK9W8q0tTa-cxbnPpOZ8NQdGA-mJS27zaQQ0Rv4B0C2E0br782-1YJXLpKZbbOYQPStxAk90YIyk_8cdDUUl65VzzkB1ayhcO6cX7TurEZo3mRXPcNYPEstrpxf3yotK4mEmI5JGrPLLZS4wk410qXHUz7ydu1cRWpegnBPXtWxm4beb0cLeQ/w640-h464/HUBBLE%20PALETTE%20,%20RAW%20LUM.%204..jpg" width="640" /></a></div><div><br /></div><span style="font-size: medium;"><div style="text-align: center;">20.5 hours RGB colour</div></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDHHaiLsdPrtKvFzVSi077GI_lCdhovE1SZ4WOXbNn3kKJ03iY_WhRYwookhWXvNhsOtWyMzO_PnyU3ATnVhwcQ95490gBTJ4uHj8KRdkfl_4DslKQvfO689cGZtGz2iSftgEHdj0x4IWCI5UTdKAqoOI-tSQN59_iXWRj9eKoOQVRPd4yeGZ82i9X1g/s3224/TOTAL%20LUM%2020.5%20%20HOURS..rgb%20colour..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2336" data-original-width="3224" height="464" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDHHaiLsdPrtKvFzVSi077GI_lCdhovE1SZ4WOXbNn3kKJ03iY_WhRYwookhWXvNhsOtWyMzO_PnyU3ATnVhwcQ95490gBTJ4uHj8KRdkfl_4DslKQvfO689cGZtGz2iSftgEHdj0x4IWCI5UTdKAqoOI-tSQN59_iXWRj9eKoOQVRPd4yeGZ82i9X1g/w640-h464/TOTAL%20LUM%2020.5%20%20HOURS..rgb%20colour..jpg" width="640" /></a></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-1822017433989025942024-01-24T09:33:00.000-08:002024-01-24T09:33:23.951-08:00Signal to noise ratio<p>Here we have an example of signal to noise. Notice the greater the exposure time the less noise in the image increasing the dynamic range of the image. </p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgPOmY721YQ_h_s5p5NQvHpI0AC-ZAARoxd3lt4mhVDYKb5SfEleQP86x3vtfCdDTvK30flZRb509w9ogygwc8lBK8KiupivM002wGfJ3My7CJ_Wn9ELYk8sWQn-UMAI7sQSn_feTjlzOFF-ivheomHNsU91LQrBHfFxAsb9IOXvplmtNUliZvC_1oeaw/s2993/sub%20frame%20examples%202..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2993" data-original-width="1000" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgPOmY721YQ_h_s5p5NQvHpI0AC-ZAARoxd3lt4mhVDYKb5SfEleQP86x3vtfCdDTvK30flZRb509w9ogygwc8lBK8KiupivM002wGfJ3My7CJ_Wn9ELYk8sWQn-UMAI7sQSn_feTjlzOFF-ivheomHNsU91LQrBHfFxAsb9IOXvplmtNUliZvC_1oeaw/w214-h640/sub%20frame%20examples%202..jpg" width="214" /></a></div><br /><p style="text-align: center;"><span style="font-size: large;">Closer view</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcuhfzatr8YrknbySJ9sfmiz9XsKu9riMC_HMAii_ze7SvvYA6Y_N2YS1kBVcyy9pUHrZP7X7SPUq_jNlR4sRvj-Z3YMrHWqJUl2nkMUN8QReuFEs6F45pw3axNiBEA-0ZgNc1DodG-L1eG35ZptuQpdT8XBpudWE6euMF7bWDJsA2ZnMebNLF7Z5zng/s2993/sub%20frame%20examples%202..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2993" data-original-width="1000" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcuhfzatr8YrknbySJ9sfmiz9XsKu9riMC_HMAii_ze7SvvYA6Y_N2YS1kBVcyy9pUHrZP7X7SPUq_jNlR4sRvj-Z3YMrHWqJUl2nkMUN8QReuFEs6F45pw3axNiBEA-0ZgNc1DodG-L1eG35ZptuQpdT8XBpudWE6euMF7bWDJsA2ZnMebNLF7Z5zng/s16000/sub%20frame%20examples%202..jpg" /></a></div><br /><p><br /></p><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-70190626500974866032024-01-24T09:23:00.000-08:002024-01-24T09:23:31.660-08:00Flat field correction<p>Here we have an example of taking flat field frames. The first image is of a flat field frame, the second image is an example of B33 taken using light frames and dark frames only and image number three is with flat field correction. </p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiIMSXNyl8stbLIMwFfhsUedeLGMOOkxSzZtpTZuLue0gzFP_zoMiz461D6ENn7yemr6qeyw5xpq6u5-O39IBTCgiapk1sD16XJaVbAzFcjdQ__ynaLevAFGuZAkU9yZu6TWsNmx9NZhcA9rYqJQwRqJiT-dlwxH_eyLNXy9KjcIsAgh2Al3o73RsMgdQ/s1681/flats.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1268" data-original-width="1681" height="482" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiIMSXNyl8stbLIMwFfhsUedeLGMOOkxSzZtpTZuLue0gzFP_zoMiz461D6ENn7yemr6qeyw5xpq6u5-O39IBTCgiapk1sD16XJaVbAzFcjdQ__ynaLevAFGuZAkU9yZu6TWsNmx9NZhcA9rYqJQwRqJiT-dlwxH_eyLNXy9KjcIsAgh2Al3o73RsMgdQ/w640-h482/flats.jpg" width="640" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBJ9dygD1OUF0NbZZ3T2mY62uqPowva_PERaKH4A8z840PwzBkTlofM5-fPoMRV9eTTZ_ELYkTxWVj9ccqcuLWsaFoRv7DvnQ_osIMIgDNblV2z5yIEsZgvfWKYj0YrccFdk7cU3FQypUijHBPWFI7cWZpf75ovMzwIgyXmEE_XdkOARVq9nxUY-hWbA/s1681/light%20frames%20%20and%20dark%20%20frames%20only.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1268" data-original-width="1681" height="482" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBJ9dygD1OUF0NbZZ3T2mY62uqPowva_PERaKH4A8z840PwzBkTlofM5-fPoMRV9eTTZ_ELYkTxWVj9ccqcuLWsaFoRv7DvnQ_osIMIgDNblV2z5yIEsZgvfWKYj0YrccFdk7cU3FQypUijHBPWFI7cWZpf75ovMzwIgyXmEE_XdkOARVq9nxUY-hWbA/w640-h482/light%20frames%20%20and%20dark%20%20frames%20only.jpg" width="640" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi0NnYjX5YGnBFJGieCfvTrq_61Z8HO3YX6Ym8SdRNUVAmC5lcjwH17ZppULYByFHI8brUNtndmq5MVptbox8N2etRQtC0dHz4LLnU5quJE3dHH4fhAy4SzqY1KCSgll7lEIek-gCt04zCmroya5tgN3kCrdnCs9bafDSS9U94op75XuYGKXetJVAmmZg/s1653/b33.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1224" data-original-width="1653" height="474" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi0NnYjX5YGnBFJGieCfvTrq_61Z8HO3YX6Ym8SdRNUVAmC5lcjwH17ZppULYByFHI8brUNtndmq5MVptbox8N2etRQtC0dHz4LLnU5quJE3dHH4fhAy4SzqY1KCSgll7lEIek-gCt04zCmroya5tgN3kCrdnCs9bafDSS9U94op75XuYGKXetJVAmmZg/w640-h474/b33.jpg" width="640" /></a></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-38215870404839175972024-01-21T12:54:00.000-08:002024-01-21T12:54:00.808-08:00The Seagull nebula<p>IC2177, The Seagull Nebula. This large patch of nebulosity lies on the border of Monoceros and Canis Major at a distance of about 3,600 light years. It was discovered by the welsh astronomer Isaac Roberts. The equipment I was using was my 4 inch f/6.3 refractor, a Vixen Atlux mount, PHD auto guiding, an Atik 383L mono CCD camera with a set of astronomik narrowband filters, HA , S11 and O111. I also used a blue filter to try to reveal the colour of the stars. The sky conditions were good with stars visable down to magnitude 5.5. This four section mosaic was taken on three separate evenings. The camera was set on X2 bin mode increasing the camera's sensitivity by four times. I captured two minute subframes with matching dark frames and combined them with flat field frames to reduce the effect of noise and vignetting in the final image. The total exposure time was 30 minutes for each filter. </p><p style="text-align: center;"><span style="font-size: medium;">Hubble palette</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6YUpYvwEAKjEpL_gGNDkDaSMorge6r87a2i0d7PNdIqZ93RzcPUBNo1fGd12X3noZniICC2g9-dTA2JaUY3D0NqL1J1QHlnlBKLON6JJZbmMoL4-8qf9c1yUEy6S6c8q6lEIcvlYQFFWXgvJPnqX6szW__9IfOxqY6kOj6e5lFwguHrsQaRiZ9q8SOA/s4241/IC2177%20%20HUBBLE%20PALETTE%20._2.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3573" data-original-width="4241" height="540" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6YUpYvwEAKjEpL_gGNDkDaSMorge6r87a2i0d7PNdIqZ93RzcPUBNo1fGd12X3noZniICC2g9-dTA2JaUY3D0NqL1J1QHlnlBKLON6JJZbmMoL4-8qf9c1yUEy6S6c8q6lEIcvlYQFFWXgvJPnqX6szW__9IfOxqY6kOj6e5lFwguHrsQaRiZ9q8SOA/w640-h540/IC2177%20%20HUBBLE%20PALETTE%20._2.jpg" width="640" /></a></div><br /><p style="text-align: center;"><span style="font-size: medium;">Bicolour</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDTo8vLmV1wEehYDIshis6nqzXSh3ctfuYcsy299f7W9ECg7XrCdpFz9zYbf3jkpK5dRL-cbsm4mwYSxu3EdlC5Ypa1GKgays_xReC5tG6-_c_W2HK1F1aDhHZocvdde-ZyXZud-Z2CSNpbpTP3z_9fcH9OxfPn3DkGVv8bm94Kzx0yaDo4BXZ3sG3qQ/s4241/IC2177%20%20%20bi%20colour%20..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3573" data-original-width="4241" height="540" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDTo8vLmV1wEehYDIshis6nqzXSh3ctfuYcsy299f7W9ECg7XrCdpFz9zYbf3jkpK5dRL-cbsm4mwYSxu3EdlC5Ypa1GKgays_xReC5tG6-_c_W2HK1F1aDhHZocvdde-ZyXZud-Z2CSNpbpTP3z_9fcH9OxfPn3DkGVv8bm94Kzx0yaDo4BXZ3sG3qQ/w640-h540/IC2177%20%20%20bi%20colour%20..jpg" width="640" /></a></div><br /><p style="text-align: center;"><span style="font-size: medium;">RGB</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg66ArFgC51enRd8HQNHsRKpTH-ZgQJA_ZAt_DGxP0DvUe2vSU8_j1_h5RI6gWdSDiflZywJolb73oUzYVjIc8g6b4-p6O2rHxB5TI0LIRiFIrHp_jx9fIM95v24yYQEAp4SxVo2FmGAOB8rok4vXXwZqqu90hvfI3ZEEmwFoCY5ZisA-Ci3X6vDDcVbw/s4241/IC2177%20%20RGB._2.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3573" data-original-width="4241" height="540" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg66ArFgC51enRd8HQNHsRKpTH-ZgQJA_ZAt_DGxP0DvUe2vSU8_j1_h5RI6gWdSDiflZywJolb73oUzYVjIc8g6b4-p6O2rHxB5TI0LIRiFIrHp_jx9fIM95v24yYQEAp4SxVo2FmGAOB8rok4vXXwZqqu90hvfI3ZEEmwFoCY5ZisA-Ci3X6vDDcVbw/w640-h540/IC2177%20%20RGB._2.jpg" width="640" /></a></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-88431905678262773922024-01-08T12:42:00.000-08:002024-01-13T17:52:03.569-08:00NGC2359, Thor's helmet.<p>NGC2359, Thor's helmet. I took this image under very clear sky conditions with stars visable down to magnitude 5.5. This patch of nebulosity lies in the constellation of Canis major. I was using my 4 inch f 6/3 refractor, a Vixen Atux Mount, PHD auto guiding, a set of Astronomic narrowband filters with an Atik 383L mono CCD camera. I captured two minute subframes with the camera set on X2 bin mode and matching dark frames and flats to reduce the effect of nose and vignetting in the final image. The total exposure time was 45 minutes in H alpha filter 50 minute in OIII and 40 minutes using a SII filter.</p><p style="text-align: center;"><span style="font-size: medium;"> RGB</span></p><p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjorMVKQz-uSLuajC7Eh5WEsciF0Sxcm4i5uPm3Pc5Qx6oVYA2zkbhOx44dMYqpuZkKEv5XXSp9rXx_35gf_eBd056-lLlVxHg_JSxz_cdUfrTOVMmcPo-joGehLPPCnVZzhUSLyq-8eLhyj4x9cm3nDZW4r7QZO1Xc27GCWuGyGeK_PHK1dTJIdOWQhg/s2815/NGC%202369%20RGB..jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2015" data-original-width="2815" height="458" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjorMVKQz-uSLuajC7Eh5WEsciF0Sxcm4i5uPm3Pc5Qx6oVYA2zkbhOx44dMYqpuZkKEv5XXSp9rXx_35gf_eBd056-lLlVxHg_JSxz_cdUfrTOVMmcPo-joGehLPPCnVZzhUSLyq-8eLhyj4x9cm3nDZW4r7QZO1Xc27GCWuGyGeK_PHK1dTJIdOWQhg/w640-h458/NGC%202369%20RGB..jpg" width="640" /></a></div><br /><p></p><p style="text-align: center;"><span style="font-size: medium;">Bi-colour</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhnUbk72gjvysAGei6L8LnmMkn_Ba-CZhffDsRUomWHZFXyP-cCMzDmUWUwWjV_1YM0lOsTCNAuR0YinKI9duOgQazk-OuhqxZje5PnhC_csa1_wmEbDM75BdBx3T8TjX5oZDxgMbVWs0cTHyDVsDJy6NFODdsHjqnjLu6-mYbLBvbdXVIXXL6bB3q9wQ/s2816/ngc2359%20bi%20colour..2..jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2044" data-original-width="2816" height="464" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhnUbk72gjvysAGei6L8LnmMkn_Ba-CZhffDsRUomWHZFXyP-cCMzDmUWUwWjV_1YM0lOsTCNAuR0YinKI9duOgQazk-OuhqxZje5PnhC_csa1_wmEbDM75BdBx3T8TjX5oZDxgMbVWs0cTHyDVsDJy6NFODdsHjqnjLu6-mYbLBvbdXVIXXL6bB3q9wQ/w640-h464/ngc2359%20bi%20colour..2..jpg" width="640" /></a></div><br /><p style="text-align: center;"><span style="font-size: medium;">Hubble Palette</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgu1t56Rbn6aVtmihB8EvggFIDmlKkgSGuFy3-30XQKWWoFS3xXMtVI2vy9qvxj_h6vq3_8mJOvkkpsad-OVu7D2IYSdI_APaWybQxgKet2AlsjptnBxRrW01Qjkcc_DfBuYjIPJjcy2vBfKcwQu0pd8EKDG2t-FZfM8L9bpWra0R5X8D3ZcEnvRE3ueQ/s2892/ngc2359%20hubble%20palette..jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2092" data-original-width="2892" height="462" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgu1t56Rbn6aVtmihB8EvggFIDmlKkgSGuFy3-30XQKWWoFS3xXMtVI2vy9qvxj_h6vq3_8mJOvkkpsad-OVu7D2IYSdI_APaWybQxgKet2AlsjptnBxRrW01Qjkcc_DfBuYjIPJjcy2vBfKcwQu0pd8EKDG2t-FZfM8L9bpWra0R5X8D3ZcEnvRE3ueQ/w640-h462/ngc2359%20hubble%20palette..jpg" width="640" /></a></div><div><br /></div>Some images of the Sky environment after the local streelights have been turned off<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVOgecM_EibZSWHBzltFMJonXvLgDReE1dZuxRf_BrO-6CcOK9zSuyIsz03xgsstqjaXF9GK7nsE_JAIHzu9AY4oHNfZwD-rgOro2_-aJqX-b_igTWLCywHUP84lFAO-6Lcgd6AhQQtQtSYVJxZrgGNfLR2lQ2n1ydq48vVB0zG7kzRB2Kj8gJhiRVEA/s1835/dome%20stars%20after%20street%20lights%20turned%20off%20..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1223" data-original-width="1835" height="426" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVOgecM_EibZSWHBzltFMJonXvLgDReE1dZuxRf_BrO-6CcOK9zSuyIsz03xgsstqjaXF9GK7nsE_JAIHzu9AY4oHNfZwD-rgOro2_-aJqX-b_igTWLCywHUP84lFAO-6Lcgd6AhQQtQtSYVJxZrgGNfLR2lQ2n1ydq48vVB0zG7kzRB2Kj8gJhiRVEA/w640-h426/dome%20stars%20after%20street%20lights%20turned%20off%20..jpg" width="640" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLtXPJA2kkIXQSTgeqow4j7CfQjCGfYwN4QJkyFiFgfapW1nWGuczMcQo00ksaMPQrpqpOZ_15kU4dDD8T5e25jpAd-V8juFwjQBXlI00M03ZfESFGFbn3J1g87-_xaQRdmk1_ZYPftvRkMsWEr7qE_K_ZZjtJM863pq-hRi-QXYdo_Z4syUeKMkhPVw/s1835/Orion%20from%20garden%20with%20street%20light%20out..2..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1223" data-original-width="1835" height="426" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLtXPJA2kkIXQSTgeqow4j7CfQjCGfYwN4QJkyFiFgfapW1nWGuczMcQo00ksaMPQrpqpOZ_15kU4dDD8T5e25jpAd-V8juFwjQBXlI00M03ZfESFGFbn3J1g87-_xaQRdmk1_ZYPftvRkMsWEr7qE_K_ZZjtJM863pq-hRi-QXYdo_Z4syUeKMkhPVw/w640-h426/Orion%20from%20garden%20with%20street%20light%20out..2..jpg" width="640" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh10G4yskwanummJ3rQiMD1NbBC70MD2oh83i0lVFdN0dlstvQq7eNQLMJabXwwWOGOKiaZmMlCSbuDvfbf_ZwNIkws8GJppIxyr8bTiXaKVICk4sDPdQMDpAeCgyZyZxbwz6VLhiCKCdj5Pq9QZ5HhLGPTeSy_Op-0BzdAZtyvgMeglnBwWb5kfHRq0Q/s2752/Orion%20ofer%20dt%20julians%20one%20street%20light%20left%20on%20..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2752" data-original-width="1835" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh10G4yskwanummJ3rQiMD1NbBC70MD2oh83i0lVFdN0dlstvQq7eNQLMJabXwwWOGOKiaZmMlCSbuDvfbf_ZwNIkws8GJppIxyr8bTiXaKVICk4sDPdQMDpAeCgyZyZxbwz6VLhiCKCdj5Pq9QZ5HhLGPTeSy_Op-0BzdAZtyvgMeglnBwWb5kfHRq0Q/w426-h640/Orion%20ofer%20dt%20julians%20one%20street%20light%20left%20on%20..jpg" width="426" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBrkcxBp6jhyphenhyphenGqTQ3RFgJTJYGpAMU2xOp99rKHrQlH-rPxnjmaU0807usLvODWhs0xVIDg0Z27A8NeyKxfrXs1y1dqRU5SXjK_CJLTR855Xh-jma_5xMEO_5fkvTw8ouQ3KKp0Fxh6ovB8mcpEmeII6A9W9d4fhxMmVajFzkTnyn7CeeB9mL7ZHyG9iQ/s4752/Stree%20light%20out%20%20Orion....jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4752" data-original-width="3168" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBrkcxBp6jhyphenhyphenGqTQ3RFgJTJYGpAMU2xOp99rKHrQlH-rPxnjmaU0807usLvODWhs0xVIDg0Z27A8NeyKxfrXs1y1dqRU5SXjK_CJLTR855Xh-jma_5xMEO_5fkvTw8ouQ3KKp0Fxh6ovB8mcpEmeII6A9W9d4fhxMmVajFzkTnyn7CeeB9mL7ZHyG9iQ/w426-h640/Stree%20light%20out%20%20Orion....jpg" width="426" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3Okk7uRZI2uMf1Axd8__42dswWVxcrJ6MMyAa69q3f5jM_4IywwqZ-QpXfUlNCjW8hNU1aOZkm2hiwQTkLL_O-vSrt-N848_DxKShO1Y0-Jw0ZaAevvzjRGW4KD37BbeY6bY_6ZqrfaNEzTuKs1vSDY7vZsAKEsJ2O0gE-Fnw1s5IAGFzOD1FBFB5lw/s1835/street%20lights%20out%20.%201.15%20am%20..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1223" data-original-width="1835" height="426" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3Okk7uRZI2uMf1Axd8__42dswWVxcrJ6MMyAa69q3f5jM_4IywwqZ-QpXfUlNCjW8hNU1aOZkm2hiwQTkLL_O-vSrt-N848_DxKShO1Y0-Jw0ZaAevvzjRGW4KD37BbeY6bY_6ZqrfaNEzTuKs1vSDY7vZsAKEsJ2O0gE-Fnw1s5IAGFzOD1FBFB5lw/w640-h426/street%20lights%20out%20.%201.15%20am%20..jpg" width="640" /></a></div><br /><div><br /><p><br /></p></div>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-79552613661837641262023-11-30T13:28:00.000-08:002023-11-30T13:28:58.289-08:00NGC7293. the Helix nebula <p>NGC7293. the Helix nebula . This image of the Helix nebula contains extra data, a total of 122 minutes using a H Alpha filter, 30 minutes using an O111 filter and ten minutes using a blue filter. The camera was set on X2 bin mode using sixty second sub frames with matching dark frames and flat field frames reducing the effect of noise and vignetting in the final image. </p><p>The telescope was my 4 inch F/6.3 refractor mounted on a Vixen Atlux mount with an Atik 383L mono CCD camera ..</p><p>Notice the reduction of noise in the image due to the extra exposure time. </p><p style="text-align: center;"><span style="font-size: medium;">The Helix nebula</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigde3dwL7mdleHlDAstqkhdflAzfh5WgFUiG3SOS3p-Cst0xFVHuif3yQx6yteH6tpRlQ5P9CYgkii8kSNwEbD9YaTVasZXig96TQRbnqi7-UMhBNiw40y__Mm_Y3-Wi7JN5j_HN4F3mXvD3yykCA2wrNHRVpRjd_aSIbSDr9ZGXwzgmATLcDLg0bTMQ/s3175/helix%20%2013.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2296" data-original-width="3175" height="462" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigde3dwL7mdleHlDAstqkhdflAzfh5WgFUiG3SOS3p-Cst0xFVHuif3yQx6yteH6tpRlQ5P9CYgkii8kSNwEbD9YaTVasZXig96TQRbnqi7-UMhBNiw40y__Mm_Y3-Wi7JN5j_HN4F3mXvD3yykCA2wrNHRVpRjd_aSIbSDr9ZGXwzgmATLcDLg0bTMQ/w640-h462/helix%20%2013.jpg" width="640" /></a></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-28458054868247798382023-11-08T11:21:00.003-08:002023-11-08T11:23:31.972-08:00The Helix nebula and M33<p>The Helix nebula. Here we have additional data added from three separate evenings, 44 minutes using a H Alpha filter and 17 minutes using an O111 filter. The camera was set on X 2 bin mode capturing 60 second sub frames with matching dark frame and flat field frames. I was using my 4 inch f/6.3 refractor mounted on a Vixen Atlux mount and an Atik 383L mono CCD camera.</p><p><span style="font-size: medium;">Click on an image to get a closer view.</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiP223u7koktI4mKv5AuV2JmsU76tE_e0G1iOv-bBqA7lQ4PALW8A5P-CMSLxpmXEGbUo8rAI9ig0e8cdmXx6Uab54ncIHfNsCyhIyBEUfJwoAzRmlDK1ylH5ODOI_i2mQlDK_GxFceiayzu4JSK4YByDbcVSOXGqJgQ4L7sgRrEoRRHGYPTVYw3yXdMQ/s3175/A1_3.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2296" data-original-width="3175" height="462" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiP223u7koktI4mKv5AuV2JmsU76tE_e0G1iOv-bBqA7lQ4PALW8A5P-CMSLxpmXEGbUo8rAI9ig0e8cdmXx6Uab54ncIHfNsCyhIyBEUfJwoAzRmlDK1ylH5ODOI_i2mQlDK_GxFceiayzu4JSK4YByDbcVSOXGqJgQ4L7sgRrEoRRHGYPTVYw3yXdMQ/w640-h462/A1_3.jpg" width="640" /></a></div><p><br /></p><p>M33. This face on Galaxy lies in the constellation of Triangulum. I set the camera on X2 bin mode capturing 60 second sub frames with matching dark and flat field frames. I used my 4 inch f/6.3 refractor, a Vixen Atlux mount and an Atik 383L mono CCD camera. I also used a set of Astronomik narrowband filters HA, O111 and blue. I then combined these data with some old luminance data, the camera was set on X 1 bin mode revealing the final result. The total exposure time was 33 minutes using an O111 filter, 40 minutes using a HA filter and 20 minutes using a blue filter. The old luminance data however I captured had five minute sub frames using an IDAS filter with a total exposure time of 120 minutes. </p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh8RbRsT5xi8CQz1cZHn5oodtqpS0WUXsEVLf2nUB8zB-j5erjlxTb_NoyxLEh1lhNTw0OSznjPi_ARBQqOu7Vp45HJ0EJq-rUF2fQxtL1fQUEv2GhVPymEOo3XlIkoLYNsV04PmIEFq41uWv09BYjRQ7y4GZ0JUt_4wDMel4d9u2mK1K-fNhr6QAU-WA/s3041/M33.,.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2286" data-original-width="3041" height="482" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh8RbRsT5xi8CQz1cZHn5oodtqpS0WUXsEVLf2nUB8zB-j5erjlxTb_NoyxLEh1lhNTw0OSznjPi_ARBQqOu7Vp45HJ0EJq-rUF2fQxtL1fQUEv2GhVPymEOo3XlIkoLYNsV04PmIEFq41uWv09BYjRQ7y4GZ0JUt_4wDMel4d9u2mK1K-fNhr6QAU-WA/w640-h482/M33.,.jpg" width="640" /></a></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-22021312522060324992023-11-02T08:59:00.000-07:002023-11-02T08:59:03.555-07:00Helix nebula<p> NGC7293, The Helix Nebula. On this particular evening I had bright moonlight, light pollution, cloudy weather and a 25-minute time slot to contend with as it drifted between the rooftops. I could only capture 60 second sub frames so I set the camera on X2 bin mode. The total exposure time was 8 minutes using a H Alpha filter, 6 minutes using O111 filter, 2 minutes using a S11 filter and 60 seconds using a blue filter. I captured 60 second sub frames with matching dark frames and combined them with flat field frames to reduce the effect of noise and vignetting in the final image. The telescope was a 4-inch f/6.3 refractor on a Vixen Atlux mount and an Atik 383L mono CCD camera.</p><p style="text-align: center;"><span style="font-size: medium;">The time-slot</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiaDUFtZxjdQr_WNTAXPi2hcbi8-COyyU8WpgpdYSKHI93RXAo-2H6TV7IqaEKGSlCM-MLBPDfAZ9_ThpdWmGB0zYNUN8WwCVwXPs-9hcENwDx0K0vMUEm_-oqGCGYfF4opa68MT3EFjv5WVdYrcq4q9wjWmU4A_kEIjArh16nBcl5CeVRcUeAqdIxNbg/s2716/time%20slot%20of%20NGC7293..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1890" data-original-width="2716" height="446" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiaDUFtZxjdQr_WNTAXPi2hcbi8-COyyU8WpgpdYSKHI93RXAo-2H6TV7IqaEKGSlCM-MLBPDfAZ9_ThpdWmGB0zYNUN8WwCVwXPs-9hcENwDx0K0vMUEm_-oqGCGYfF4opa68MT3EFjv5WVdYrcq4q9wjWmU4A_kEIjArh16nBcl5CeVRcUeAqdIxNbg/w640-h446/time%20slot%20of%20NGC7293..jpg" width="640" /></a></div><div><br /></div><span style="font-size: medium;"><div style="text-align: center;">The Helix nebula appearing over the rooftop</div></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmnSNUdTIiAy_jUyXjx5kzCB-qOIDDZHg1ZfvTyyZu0KjEcfOikP_9b1A7yA4k9kEtxuaImUM-DX7jQFpf_A1VZtFnWbsO8Olak23nrECnjX2gFwav4f6AgTCrs4gLGE9MrTS77J_ShIb9vXuxieLGwa9I-3pv_A2WI3V6hB2YMtr_O0StS3cFcVb7vw/s3362/ha2%20roof.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2476" data-original-width="3362" height="472" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmnSNUdTIiAy_jUyXjx5kzCB-qOIDDZHg1ZfvTyyZu0KjEcfOikP_9b1A7yA4k9kEtxuaImUM-DX7jQFpf_A1VZtFnWbsO8Olak23nrECnjX2gFwav4f6AgTCrs4gLGE9MrTS77J_ShIb9vXuxieLGwa9I-3pv_A2WI3V6hB2YMtr_O0StS3cFcVb7vw/w640-h472/ha2%20roof.jpg" width="640" /></a></div><div><br /></div><span style="font-size: medium;"><div style="text-align: center;">The Helix nebula</div></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYlyqJj9UoiBhJebQ61xntK8aU4bvUhz3lLgl5uWClJ2NVNp7OHVOBcMEm0N01ijPP-GQQAE9iYvNtrt3tAKn3pPzjYL4shEpzA2L1-BEovJRJTSXYi9YXOhqyrLmwPoRXsOBcKa2Dau-BFjjdwmq_T8FKLL14YeURo-Jpa3vEeEPOKrnejtm4wgmgmQ/s3362/HELIX%20%20colour.7..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2469" data-original-width="3362" height="470" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYlyqJj9UoiBhJebQ61xntK8aU4bvUhz3lLgl5uWClJ2NVNp7OHVOBcMEm0N01ijPP-GQQAE9iYvNtrt3tAKn3pPzjYL4shEpzA2L1-BEovJRJTSXYi9YXOhqyrLmwPoRXsOBcKa2Dau-BFjjdwmq_T8FKLL14YeURo-Jpa3vEeEPOKrnejtm4wgmgmQ/w640-h470/HELIX%20%20colour.7..jpg" width="640" /></a></div><br /><div><br /><p><br /></p></div>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-41682345795785173962023-10-19T05:16:00.001-07:002023-10-19T06:32:30.766-07:00M31<p>M 31, The Andromeda galaxy. This galaxy lies at a distance of about 2.3 million light years, the light possibly left this galaxy before the first human beings walked on this planet. This image is a five-section mosaic stitched together using Paint Shop Pro software. I was using my 4 inch f/6.3 refractor, a Vixen Atlux mount, PHD auto guiding, Astronomik filters, H Alpha, O111, and Blue. The camera was an Atik 383L mono CCD camera. I also combined 60 minutes of some old H Alpha data taken using an 80mm f/6.3 refractor to reveal some of the nebulosity in the spiral arms. I captured five-minute sub frames with matching dark frames and combined them with flat field frames and bias frames to reduce the effect of vignetting and noise in the final image. The total exposure time for each mosaic section using the 4 inch refractor was 10 minutes using a H A filter, 10 minutes using an O111 filter and 40 minutes using a blue filter.</p><p><span style="font-size: medium;">Click on the image to get a closer view</span></p><p> </p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5ot6zzfGUSN1KWVcm1Djg0lQtMzZ0c8mn-r56FKf6GycZRD11SUkQmuCUn9VBXunU4lFphB8XAjkHTMhnAaV_IOs1ad7X18lJOWy5TRgMwzoLv9camiVn3N7o1r06_a0PooZ4YD1QseTokNAwrg97oMNDpdRqeV7AwwylTspg74NafHaWyW291kGREQ/s4824/M31%20mosaic10%20.sharp...jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4088" data-original-width="4824" height="542" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5ot6zzfGUSN1KWVcm1Djg0lQtMzZ0c8mn-r56FKf6GycZRD11SUkQmuCUn9VBXunU4lFphB8XAjkHTMhnAaV_IOs1ad7X18lJOWy5TRgMwzoLv9camiVn3N7o1r06_a0PooZ4YD1QseTokNAwrg97oMNDpdRqeV7AwwylTspg74NafHaWyW291kGREQ/w640-h542/M31%20mosaic10%20.sharp...jpg" width="640" /></a></div><br /><p></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-67696217261636699542023-10-10T06:00:00.001-07:002023-10-10T06:00:20.814-07:00NGC 7331 and Stephan's Quintet.<p>NGC 7331. This galaxy lies in the constellation of Pegasus. Looking about one degree to the south west we have a group of galaxies NGC7320, NGC7319, NGC7318 and NGC 7317, commonly named Stephan's Quintet, which was discovered back in 1877. I captured this image on three separate evenings under very hazy sky conditions with stars only visible down to magnitude 3.5. The telescope I was using was a 4 inch F/6.3 refractor, a Vixen Atlux mount, PHD auto guiding, a set of Astronomik filters and an Atik 383L mono CCD camera. I captured five minute and 60 second sub frames and combined them with matching dark frames, flat field frames and bias frames to reduce the effect of noise and vignetting in the final image. The exposure time was 110 minutes using a H Alpha filter, 50 minutes using an O111 filter and 145 minutes using a blue filter. A total exposure time of 5 hours and 5 minutes. </p><p><span style="font-size: medium;">Click on the image to get a closer view</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEifoUhkxDgJumsD8wH8rA65V6HOmnUead9kCzdVNyl5pF6atg4hQpnOtbaJ2wQSbDMyLC76VslJ0PUmrd_BkJ72i7hLfDmHcUoBN2w7NHdTeN4nj5XTQy18TWMQdd21m4ZIDQtN2k_sZizlDMMIzHymvWUH0bXaelarAQjIc4kvWZNRRjZLIjgJTccDqQ/s2310/ngc7331%20and%20ngc7317%20combined%20data%20from%20three%20nights%20,.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1683" data-original-width="2310" height="466" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEifoUhkxDgJumsD8wH8rA65V6HOmnUead9kCzdVNyl5pF6atg4hQpnOtbaJ2wQSbDMyLC76VslJ0PUmrd_BkJ72i7hLfDmHcUoBN2w7NHdTeN4nj5XTQy18TWMQdd21m4ZIDQtN2k_sZizlDMMIzHymvWUH0bXaelarAQjIc4kvWZNRRjZLIjgJTccDqQ/w640-h466/ngc7331%20and%20ngc7317%20combined%20data%20from%20three%20nights%20,.jpg" width="640" /></a></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-42012107830616589522023-10-10T05:56:00.005-07:002023-10-10T06:00:54.327-07:00IC1396 Hubble palette<p style="text-align: center;"><span style="font-size: medium;">Here we have the final composition of IC1396 with colour correction and noise reduction.</span></p><p style="text-align: center;"><span style="font-size: large; text-align: left;">Click on the image to get a closer view</span></p><p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijGQRxNPLETbTglsUHWGjdYJwYOvgzgXG76fSkhLEq14iMwOJI040cxlrLBZeHgdt8K_Z8bD4M5gf4IXTdv9qtVu_4Di0YYIdTK1PMBvKRHUgzEFzNc2BkTQ3wRsjtZ4DnGv0I7VOmodZ9KNQYGcfLPBpJQyIFVeHGYDWZmCyncoCsjxpskqJhf9BH8A/s4908/ic1396%20hubble%20palette%20%20a4._sharp..jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4675" data-original-width="4908" height="610" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijGQRxNPLETbTglsUHWGjdYJwYOvgzgXG76fSkhLEq14iMwOJI040cxlrLBZeHgdt8K_Z8bD4M5gf4IXTdv9qtVu_4Di0YYIdTK1PMBvKRHUgzEFzNc2BkTQ3wRsjtZ4DnGv0I7VOmodZ9KNQYGcfLPBpJQyIFVeHGYDWZmCyncoCsjxpskqJhf9BH8A/w640-h610/ic1396%20hubble%20palette%20%20a4._sharp..jpg" width="640" /></a></div><br /> <p></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-60289474322191683102023-09-18T03:31:00.003-07:002023-09-18T03:31:46.573-07:00IC1396 The Elephant Trunk nebula<p>This 7 section mosaic of IC1396, commonly named the Elephant Trunk nebula lies in the star constellation of Cepheus the King. I collected the data on six separate evenings under clear sky conditions with only light pollution to contend with. The telescope was a 4 inch F/6.3 refractor, a Vixen Atlux mount, an Atik 383L mono CCD camera and a set of Astronomik narrowband filters. I captured 60 second sub frames with matching dark frames and combined them with flat field frames to reduce the effect of noise and vignetting in the final image. The total exposure times for each section with the camera set on X2 bin mode were 60 minutes using a H Alpha filter, 20 minutes using an O111 filter, 20 minutes using an S11 filter, 15 minutes using a H Beta filter and 15 minutes using a blue filter.</p><p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhL6g3lypeE9reb_MU468mpUh3KVMQhPkMrGLSNIzMCazqa6lXMWd6zBxEYVUwjisNLamDVV0sF56LSjQv64pYT9HkXgGfYQoBph6RcZS3DK0EJifw7z71A2ssDQH24fR7Pv47IFIu-vJflbb8sI7cf6qaU2uNw0eFiNw7UIa4_YmdxpUFxSBhghAQtwg/s4906/ic1396%20hubble%20palette%20..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4675" data-original-width="4906" height="610" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhL6g3lypeE9reb_MU468mpUh3KVMQhPkMrGLSNIzMCazqa6lXMWd6zBxEYVUwjisNLamDVV0sF56LSjQv64pYT9HkXgGfYQoBph6RcZS3DK0EJifw7z71A2ssDQH24fR7Pv47IFIu-vJflbb8sI7cf6qaU2uNw0eFiNw7UIa4_YmdxpUFxSBhghAQtwg/w640-h610/ic1396%20hubble%20palette%20..jpg" width="640" /></a></div><br /> <div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiYHDwtrElCsevPibLtsRMupXrKtcPlo6b2HrE2EWsVM4UJuwuse1UXsimC7kcL3ubctlQSk7frEWuvRyO_d0QngJh1eoFMnuSt-ngqV90sbK0u8K69hZYY7egJM0ZaY5Ykr64eW4sGko3pxn0QBMiSh_upA1Y_KJKLlgRsCWnctnSKny4OmniUe1MBlQ/s3204/new%20data._IC%201396..section%20%207..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3204" data-original-width="2400" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiYHDwtrElCsevPibLtsRMupXrKtcPlo6b2HrE2EWsVM4UJuwuse1UXsimC7kcL3ubctlQSk7frEWuvRyO_d0QngJh1eoFMnuSt-ngqV90sbK0u8K69hZYY7egJM0ZaY5Ykr64eW4sGko3pxn0QBMiSh_upA1Y_KJKLlgRsCWnctnSKny4OmniUe1MBlQ/w480-h640/new%20data._IC%201396..section%20%207..jpg" width="480" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimMbF-IpPPFRrsUmIaofivVlGGa7ivur9gszJoeC_kosnak_a5QltP_2ak7VTbuu3laF3npPNYc4TSuDjEvoKJbbcsOMqwxtua1glxJHeEwq1vdlPKgWep01w8_sOIlY9UrkAhduqaF9RJPeG_qFljOdRpY-SDkxffoUXK8Wpkr3bSrUvPyjwzd7etRA/s3362/IC%201396%20section%204%20..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3362" data-original-width="2536" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimMbF-IpPPFRrsUmIaofivVlGGa7ivur9gszJoeC_kosnak_a5QltP_2ak7VTbuu3laF3npPNYc4TSuDjEvoKJbbcsOMqwxtua1glxJHeEwq1vdlPKgWep01w8_sOIlY9UrkAhduqaF9RJPeG_qFljOdRpY-SDkxffoUXK8Wpkr3bSrUvPyjwzd7etRA/w482-h640/IC%201396%20section%204%20..jpg" width="482" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixExSZBuhMYvko8vjmPS57y-ZjV8hfKZT4X9dyMyxUm1_iM7x_LAXlsVdfbNYKCtBMOTO5OlBCO6S_fw5lWoPZfgUOzF-z5kJ-f8b4DJdhMDUnF-9WCYD7RHbG77FnCO5HAXfWiWPdg1ZWekJOLZhKOlSs6A7i-35ViJxOrcJrzZ4turqOLESdBSmUQg/s3246/IC%201396%20section%203..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3246" data-original-width="2448" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixExSZBuhMYvko8vjmPS57y-ZjV8hfKZT4X9dyMyxUm1_iM7x_LAXlsVdfbNYKCtBMOTO5OlBCO6S_fw5lWoPZfgUOzF-z5kJ-f8b4DJdhMDUnF-9WCYD7RHbG77FnCO5HAXfWiWPdg1ZWekJOLZhKOlSs6A7i-35ViJxOrcJrzZ4turqOLESdBSmUQg/w482-h640/IC%201396%20section%203..jpg" width="482" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQlVutEcgXspUk6N0mCSbtczg5aWA76-a8CcAYM3gHsZ-FAHoxQhPaVqI35lIqXLr747JdBeQAb6pabNsjUpf6oY4kHiqgB4SbBZze3kkV_oQDIw6DvY4PFVJUMG_Wb4mc2TWlKoK5AtkFv2ZoRujd6i6lRGt7HpPS7XHOH8XMtGTp1d6uRoREeAX-5A/s3336/IC1396%20SECTION%20..1..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3336" data-original-width="2526" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQlVutEcgXspUk6N0mCSbtczg5aWA76-a8CcAYM3gHsZ-FAHoxQhPaVqI35lIqXLr747JdBeQAb6pabNsjUpf6oY4kHiqgB4SbBZze3kkV_oQDIw6DvY4PFVJUMG_Wb4mc2TWlKoK5AtkFv2ZoRujd6i6lRGt7HpPS7XHOH8XMtGTp1d6uRoREeAX-5A/w484-h640/IC1396%20SECTION%20..1..jpg" width="484" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9qqkvjFLRMRQoReOqTZ02yZt2P_U1Rl3ee5FxwS2PtkiveBQ2EqQ8tjbnEtK84gi2T_pu9-Z7lb6rXZIf89XfyY-OlH5vh0JE3Asg4mVahBfY-qlJ8CraETucB1a2hDT-D1xXHLupbOm1rdVRPr6xnpI7mEuZsDMaZ77gQffMq7jU7x_68j0JdtAAlw/s3362/IC1396%20section%206.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3362" data-original-width="2536" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9qqkvjFLRMRQoReOqTZ02yZt2P_U1Rl3ee5FxwS2PtkiveBQ2EqQ8tjbnEtK84gi2T_pu9-Z7lb6rXZIf89XfyY-OlH5vh0JE3Asg4mVahBfY-qlJ8CraETucB1a2hDT-D1xXHLupbOm1rdVRPr6xnpI7mEuZsDMaZ77gQffMq7jU7x_68j0JdtAAlw/w482-h640/IC1396%20section%206.jpg" width="482" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJGhwndpXIJv18h7xTQzs5oDUknLOCkk5YQkVXtlrPtJiUf2U6P3Ns2dUsv-w655eom77zwwbt5kk3hzySEZ81CUZmaOuKp0V6hDI9YIKjVb9LInApMLr_dAV8GUAz5cWpZdy5iD2vvKdvP1v3tR8svo9RzHRGrscsAt1C35TzTNnzp_OX5iDdXlPRVA/s3362/IC1396%20section%205%20..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3362" data-original-width="2536" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJGhwndpXIJv18h7xTQzs5oDUknLOCkk5YQkVXtlrPtJiUf2U6P3Ns2dUsv-w655eom77zwwbt5kk3hzySEZ81CUZmaOuKp0V6hDI9YIKjVb9LInApMLr_dAV8GUAz5cWpZdy5iD2vvKdvP1v3tR8svo9RzHRGrscsAt1C35TzTNnzp_OX5iDdXlPRVA/w482-h640/IC1396%20section%205%20..jpg" width="482" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEippAGlHBi1rra7d-YgwNfVe13lOTrcxstu2tX8NzyguTAh--GzUyLmTc9cUPel9I5Vzlh3qyg5u5-WpjFbYi394k-E2v4ZCZPvgGxIaKE2B1mHmsZDgFWxeWO262x59H496uXXMb8sWb40_eGUxw6ZFcV8knhPVtF9k-PBlEPdZ55inCe136KtFWdGBw/s3204/_IC%201396.....section%202..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3204" data-original-width="2400" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEippAGlHBi1rra7d-YgwNfVe13lOTrcxstu2tX8NzyguTAh--GzUyLmTc9cUPel9I5Vzlh3qyg5u5-WpjFbYi394k-E2v4ZCZPvgGxIaKE2B1mHmsZDgFWxeWO262x59H496uXXMb8sWb40_eGUxw6ZFcV8knhPVtF9k-PBlEPdZ55inCe136KtFWdGBw/w480-h640/_IC%201396.....section%202..jpg" width="480" /></a></div><br /><p></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-38072545114347020552023-08-26T14:05:00.002-07:002023-08-26T14:05:48.552-07:00IC1396, The Elephant trunk nebula.<p>IC1396, The Elephant trunk nebula. This patch of nebulosity lies in the constellation of Cepheus the king. I took these images on two separate evenings under clear moonless sky conditions with stars visible down to magnitude 5. On this occasion I was not using auto guiding and only using 60 second sub frames with the camera set on x 2 bin mode. I then combined the data with matching dark frames and flat field frames to reduce the effect of noise and vignetting in the final images making the two sections mosaic. The telescope I was using was an f/6.3, 4 inch refractor, a Vixen Atlux mount, a set of Astronomik narrowband filters and an Atik 383L mono CCD camera. The exposure times were 60 minutes using a H A filter, 20 minutes using an O111 filter, 20 minutes using an S11 filter, 15 minutes using a H beta filter and 15 minutes using a blue filter.</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiCXqDVUZaJYFDKaqFjjxeldXOoC9z9Svh-qcCPCgL2aQEsyXXXuzmezHIw7LXaZOk6POGh3ro0wQnk5d_gKT15fgxTWBvgwA5rVTskCrKtmvXubNuGtpMBOpqqFPfrykiFBOGOnoXRqIe3nKmU5bBlG-LIrxYmpQjkRJFI9KK4qg9Bn-9-1Z26Ud8VSw/s3204/_IC%201396..section%20a%201..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3204" data-original-width="2400" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiCXqDVUZaJYFDKaqFjjxeldXOoC9z9Svh-qcCPCgL2aQEsyXXXuzmezHIw7LXaZOk6POGh3ro0wQnk5d_gKT15fgxTWBvgwA5rVTskCrKtmvXubNuGtpMBOpqqFPfrykiFBOGOnoXRqIe3nKmU5bBlG-LIrxYmpQjkRJFI9KK4qg9Bn-9-1Z26Ud8VSw/w480-h640/_IC%201396..section%20a%201..jpg" width="480" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7dcAQYxEa8PBRS38XOH4mbL2oHqP1y0-sPDxKpmU5jj6fMxns3FFiukwBsoWkcI4G_e5OwrQgVBdiV2RGpIquCXtB4nG-1JJLUDMv24Bzmd0kWU8leBgHYhaIzi3OcbCo8j3ZkWMeagJMgXCWSKtiQgiv6P7GyexEPKHVIxeiPnDWb_d_hUwN0GXl-g/s3265/IC1396%20SECTION%20......B.2..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3265" data-original-width="2486" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7dcAQYxEa8PBRS38XOH4mbL2oHqP1y0-sPDxKpmU5jj6fMxns3FFiukwBsoWkcI4G_e5OwrQgVBdiV2RGpIquCXtB4nG-1JJLUDMv24Bzmd0kWU8leBgHYhaIzi3OcbCo8j3ZkWMeagJMgXCWSKtiQgiv6P7GyexEPKHVIxeiPnDWb_d_hUwN0GXl-g/w488-h640/IC1396%20SECTION%20......B.2..jpg" width="488" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgmPWbMowvn3ztEqLniU-lc01wSwtnUrG-05ku-P5762mKlsrbjv48pyw9fB6rWNSpNC0fnDvTDF8oUgtGt39BiuLd4wzHdsYntxvVBeDa69ef_Vcd-E0KwIez6B2R5B2Ud1D0FVV5zXgNLrytNINSL5QAAfPBTqI390XFzHKTwJkpRSqRIRLh-WKP0w/s3270/ic1396%20DATA%20sharp..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3162" data-original-width="3270" height="618" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgmPWbMowvn3ztEqLniU-lc01wSwtnUrG-05ku-P5762mKlsrbjv48pyw9fB6rWNSpNC0fnDvTDF8oUgtGt39BiuLd4wzHdsYntxvVBeDa69ef_Vcd-E0KwIez6B2R5B2Ud1D0FVV5zXgNLrytNINSL5QAAfPBTqI390XFzHKTwJkpRSqRIRLh-WKP0w/w640-h618/ic1396%20DATA%20sharp..jpg" width="640" /></a></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-88038824329182585222023-08-10T07:08:00.005-07:002023-08-11T23:47:31.921-07:00SH2-101, The Tulip nebula and M56, globular star cluster.<p>SH2-101, The Tulip nebula. Ths nebula lies in the constellation of Cygnus the Swan in a region named Fish on the platter. I was using my four inch F/6.3 refractor, a Vixen Atlux mount, PHD auto guiding, a set of Astronomik narrowband filters and an Atik 383L mono CCD camera. I captured five minute sub frames with matching dark frames and combined them with flat field frames to reduce the effect of vignetting in the final image. The total exposure time was 65 minutes using a H Alpha filter, ten minutes using a blue filter, 20 minutes using an s11 filter. The O111 filter was taken using 60 second subframes with matching dark frames with a total exposure time of 45 minutes. The arrow indicates what I believe to be the location of Cygnus X-1 </p><p><span style="font-size: medium;">Click on an image to get a closer view</span></p><p style="text-align: center;"><span style="font-size: medium;">The Tulip nebula</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiGyBeZ5fShaMim-Rv7gC__CfBueeZ0lIsM4-IwSitaL3kH1rYhie15GkD8jlLFPG3WnDS6B2tFNZ7kmDyoj5FGl51JnZgsm-jDPB_Pe8CNOXHsq6yd1qZjR98nBUMzG0tXeU_PyF-GrY4AfX35AdgNSY6VD_CIC3GK1JpuDP8rzxcYrcX5glkCtqKFCQ/s3285/SH2-101%20a1..jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2445" data-original-width="3285" height="476" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiGyBeZ5fShaMim-Rv7gC__CfBueeZ0lIsM4-IwSitaL3kH1rYhie15GkD8jlLFPG3WnDS6B2tFNZ7kmDyoj5FGl51JnZgsm-jDPB_Pe8CNOXHsq6yd1qZjR98nBUMzG0tXeU_PyF-GrY4AfX35AdgNSY6VD_CIC3GK1JpuDP8rzxcYrcX5glkCtqKFCQ/w640-h476/SH2-101%20a1..jpg" width="640" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgesMHtcrfiOG7DX6tYQet0PDL9nq9-9EbUlqGJBsxlSdJbLFceI7Kcw-0SnPEgqfMUo0eWSZ5UnOERa4a9Evx6Q-wZipH-JyfS1ojN0UQN3u-f1z5MXOdzOfIQJ8CxNjN72XtiPhwfuJJxC42-xDBC7rqT9V0CouGiDkT8r_KCKdCde6xVPVPdqzqj-A/s3285/SH2-101%20a2%20bmp.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2445" data-original-width="3285" height="476" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgesMHtcrfiOG7DX6tYQet0PDL9nq9-9EbUlqGJBsxlSdJbLFceI7Kcw-0SnPEgqfMUo0eWSZ5UnOERa4a9Evx6Q-wZipH-JyfS1ojN0UQN3u-f1z5MXOdzOfIQJ8CxNjN72XtiPhwfuJJxC42-xDBC7rqT9V0CouGiDkT8r_KCKdCde6xVPVPdqzqj-A/w640-h476/SH2-101%20a2%20bmp.jpg" width="640" /></a></div><div><br /></div><span style="font-size: medium;"><div style="text-align: center;">Hubble palette</div></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjV9XeD4uWw8LTDb5Ix9Uzjjpd40noEXPiU-t5B79Ed7yGxHXRQuDlmFVT_GdpeEQ31N_rJsWxJeuamP92bGEJjPpoqqk5L-cpf9AUNw_yS2QAnGj0081yzLCec7JcR7UMB1T2L6IF7DJ5HqHImGBzDrA8x35kkaA4RUeHZfz3SFi6DameX06McABt40w/s3290/SH2-101%20hubble%20palette%20%20..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2460" data-original-width="3290" height="478" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjV9XeD4uWw8LTDb5Ix9Uzjjpd40noEXPiU-t5B79Ed7yGxHXRQuDlmFVT_GdpeEQ31N_rJsWxJeuamP92bGEJjPpoqqk5L-cpf9AUNw_yS2QAnGj0081yzLCec7JcR7UMB1T2L6IF7DJ5HqHImGBzDrA8x35kkaA4RUeHZfz3SFi6DameX06McABt40w/w640-h478/SH2-101%20hubble%20palette%20%20..jpg" width="640" /></a></div><br /><div style="text-align: center;"><span style="font-size: medium;">RGB</span></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEge7T8FsN4bYohINjNMdDNeeFqM0557v3BQLmXnrM-ufXvqJAKDIsaKtqyTYTA7hQk1GmDj5imcOcZg714Q5qkZH3Yt9VCk3YJE1jhlWvVMv5wf72gD4J2jjtjhXiljzjeZ5vBwNBAlpPzphIRJAIxZRH7DS54L0FUX3xhX6XfPG4GoOw_4u_T-C37RZw/s3265/SH2-101.%20RGB%20colour.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2420" data-original-width="3265" height="474" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEge7T8FsN4bYohINjNMdDNeeFqM0557v3BQLmXnrM-ufXvqJAKDIsaKtqyTYTA7hQk1GmDj5imcOcZg714Q5qkZH3Yt9VCk3YJE1jhlWvVMv5wf72gD4J2jjtjhXiljzjeZ5vBwNBAlpPzphIRJAIxZRH7DS54L0FUX3xhX6XfPG4GoOw_4u_T-C37RZw/w640-h474/SH2-101.%20RGB%20colour.jpg" width="640" /></a></div><div><br /></div><span style="font-size: medium;"><div style="text-align: center;">RGB + Hubble palette</div></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4mRJhhXhnmSXiMIuO7b5dYyIln1mVnlrzVyTgY6Ag33oR1nuA9AF-BsGvGfDWdde-MZatpyQmujY34CeCV-mR10JHGZHi9qk0vhnZbIpRfIKvnoeQTb4t9gEveQbgPpQg254I6ongJURR02uc7GwaS3vGqLOJ_xgaoVAOG3-U5X7VlL_vu9LOLqSVIg/s3265/SH2-101%20hubble%20palette%20plus%20RGB..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2420" data-original-width="3265" height="474" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4mRJhhXhnmSXiMIuO7b5dYyIln1mVnlrzVyTgY6Ag33oR1nuA9AF-BsGvGfDWdde-MZatpyQmujY34CeCV-mR10JHGZHi9qk0vhnZbIpRfIKvnoeQTb4t9gEveQbgPpQg254I6ongJURR02uc7GwaS3vGqLOJ_xgaoVAOG3-U5X7VlL_vu9LOLqSVIg/w640-h474/SH2-101%20hubble%20palette%20plus%20RGB..jpg" width="640" /></a></div><div><div><br /><p>M56. This globular star cluster lies in the constrellation of Lyra the Harp. This image was taken using a 4inch F/6.3 refractor, a vixen Atlux mount, PHD auto guiding, a set of Astronomik narrowband filters and an Atik 383L mono CCD camera. I captured five minute sub frames with matching dark frames and combined them with flat field frames to reduce the effect of vignetting in the final image. The exposure time was ten minutes using a blue filter, ten minutes using an O111 filter and 50 minutes using a H Alpha filter.</p><p style="text-align: center;"><span style="font-size: medium;">M56</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxJ9tQKk1jpp0xWKKSP3h1h7BHnxWZsH1t2j8ViYcWk42t6_q7uLslVVQP163ZST4UkQqrqiT_irj0di0UVqsopoYYr6Z7lOoTwGhdpO1Vkq6Dk9rWL70GvlYQZyrvA2Bd52FI8j-23K5rGL8MpyEqXHld93ZSqchJJ6mqQqGdHyGvTOBQtLvTyKxwxw/s3362/m56%20%20a1.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2537" data-original-width="3362" height="482" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxJ9tQKk1jpp0xWKKSP3h1h7BHnxWZsH1t2j8ViYcWk42t6_q7uLslVVQP163ZST4UkQqrqiT_irj0di0UVqsopoYYr6Z7lOoTwGhdpO1Vkq6Dk9rWL70GvlYQZyrvA2Bd52FI8j-23K5rGL8MpyEqXHld93ZSqchJJ6mqQqGdHyGvTOBQtLvTyKxwxw/w640-h482/m56%20%20a1.jpg" width="640" /></a></div><br /><p><br /></p></div></div>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-65157093880124560482023-06-13T13:20:00.002-07:002023-06-13T13:20:37.736-07:00M16, The Eagle nebula.<p>M16, The Eagle nebula. This image was taken on two separate evenings, 90 minutes using a H Alpha filter . ten minutes using an O111 filter, 15 minutes using an S11 filter and 15 minutes using a H Beta filter. I was using my 4 inch F/6.3 refractor, a Vixen Atlux mount PHD auto guiding, a set of Astronomik narrowband filters and a Atik 383L mono CCD camera. I captured five minute sub frames with matching dark frames and combined them with flat field and bias frames to reduce the effect of noise and vignetting in the final image.</p><p><span style="font-size: medium;">Click on the image to get a closer view</span></p><p style="text-align: center;"><span style="font-size: medium;">The Eagle nebula</span></p><p style="text-align: center;"><span style="font-size: medium;">RGB plus Hubble Palette</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzehVE8prFqlUDtDItOJukbLi3vuL3DhzGp29ivoVmsgLMDgT5z9EG_ybLrW7k8A1GOdZ7E4CoRizfohloXm4WCfZ9TWHM7HoB0motgDamIDsLDeW0oSOGmjohvQJRSR-ypLUcRqYH6pQzrWK_EnC5FrxLqGYaUV_tKQOul62zub87rgLMRlXx-8Y/s3362/rgb..plus%20hubble%20palette..2.dharp..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2537" data-original-width="3362" height="482" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzehVE8prFqlUDtDItOJukbLi3vuL3DhzGp29ivoVmsgLMDgT5z9EG_ybLrW7k8A1GOdZ7E4CoRizfohloXm4WCfZ9TWHM7HoB0motgDamIDsLDeW0oSOGmjohvQJRSR-ypLUcRqYH6pQzrWK_EnC5FrxLqGYaUV_tKQOul62zub87rgLMRlXx-8Y/w640-h482/rgb..plus%20hubble%20palette..2.dharp..jpg" width="640" /></a></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-39200937876194061612023-04-29T09:30:00.004-07:002023-04-29T09:30:34.558-07:00 IC443, The Jellyfish nebula<p>This image was taken using my 4 inch f/6.3 refractor, a Vixen Atlux mount, PHD auto-guiding, a set of Astronomiik narrowband filters, S11, O111 and H Alpha, with an Atik 383L mono CCD camera. I captured five minute sub frames with matching dark frames and combined them with bias and flat field frames to reduce the effect of vignetting in the final image. The H Alpha luminance data was taken on two separate evenings, combined with some old narrowband colour data. The total exposure time was 60 minutes using O111 and S11 filters and 120 minutes using a H Alpha filter.</p><p style="text-align: center;"><span style="font-size: medium;">RGB image</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7QzT_ESCMMuF5asIx9nE0px3dPpj2XoVcbqRyOQXVZ0_lgBzBrjs6ZF2X96fajFMWA6lchvmwjyn6K51SPq77ffPf9_4lUs1KDIbWwCRwRSxsmLj-JizavrxGSGvG6jycAK6xdioaZU_GDNArxOidYeX4Mm7gZlFSE8ts8ojz4Vc7NlP79GgETB4/s3362/IC443%20RGB%20._2.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2537" data-original-width="3362" height="482" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7QzT_ESCMMuF5asIx9nE0px3dPpj2XoVcbqRyOQXVZ0_lgBzBrjs6ZF2X96fajFMWA6lchvmwjyn6K51SPq77ffPf9_4lUs1KDIbWwCRwRSxsmLj-JizavrxGSGvG6jycAK6xdioaZU_GDNArxOidYeX4Mm7gZlFSE8ts8ojz4Vc7NlP79GgETB4/w640-h482/IC443%20RGB%20._2.jpg" width="640" /></a></div><div><br /></div><div><br /></div><span style="font-size: medium;"><div style="text-align: center;">Hubble Palette</div><div style="text-align: center;"><br /></div></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgGHVXvY3lwc6Vk9aMAv4hESpN2OXN331aLDx3matCIe_V3JRYce2bAgkgXhMcJuStwSEj4QfrQ7kuY_QyIFpKk4X6iiZBC1H-OUzVLNS3cJpH9g0x7YIJEgmnZRqgEBvFX3fEPYScPzn1F4dv9mHIzsaDnNbh_x4PycNI4o4f7X3fafb_TE-ATthU/s3270/IC443.Hubbel%20palette._2.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2430" data-original-width="3270" height="476" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgGHVXvY3lwc6Vk9aMAv4hESpN2OXN331aLDx3matCIe_V3JRYce2bAgkgXhMcJuStwSEj4QfrQ7kuY_QyIFpKk4X6iiZBC1H-OUzVLNS3cJpH9g0x7YIJEgmnZRqgEBvFX3fEPYScPzn1F4dv9mHIzsaDnNbh_x4PycNI4o4f7X3fafb_TE-ATthU/w640-h476/IC443.Hubbel%20palette._2.jpg" width="640" /></a></div><div><br /></div><br /><p style="text-align: center;"><span style="font-size: medium;">Hubble Palette + RGB</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgg_AR1zR3cZCTtOU0mG-IqjRPvaKucpS3qfv3cwUFfeD8ky5sN_OIvADz_d9sFwJl-H3gXr-XRGnwtHQmruF_U0vKzrm3GKma1FAPSo5B5R8TDfSdZxGv5jELOYchJZGeZ2gL9wySyBB9Lf1asAsXERWxwwpsUvomJjoE4E7YjoEHeTmyxKwvg5LI/s3232/IC443.Hubble%20palette.plus%20RGB._SHARP.%204..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2440" data-original-width="3232" height="484" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgg_AR1zR3cZCTtOU0mG-IqjRPvaKucpS3qfv3cwUFfeD8ky5sN_OIvADz_d9sFwJl-H3gXr-XRGnwtHQmruF_U0vKzrm3GKma1FAPSo5B5R8TDfSdZxGv5jELOYchJZGeZ2gL9wySyBB9Lf1asAsXERWxwwpsUvomJjoE4E7YjoEHeTmyxKwvg5LI/w640-h484/IC443.Hubble%20palette.plus%20RGB._SHARP.%204..jpg" width="640" /></a></div><br />astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-24892785160140437852023-04-13T09:07:00.003-07:002023-04-13T09:07:36.882-07:00More renderings of the Rosette nebula<p>Here are another two versions of the Rosette nebula image using H-Beta and O111 as the blue channel combined with H-Alpha as the red channel. The image is Bi colour whereas the second image is Bi colour combined with the Hubble palette</p><p style="text-align: center;"><span style="font-size: medium;">Bi Colour</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9mTUERSFhuzJOtKujho1Jyky6Kcb1ljM6DgGZ-Lhu7tBzHyyod6DwRSwapDwpiEUMgHJWRDI-_nUyce__0F7b_WM3_zlX6awt99pwvTiKgAVfQcDSf7jy2oYWYufjpxbnIFR_a9ZJioCXLNsULXe7uMjhfeforHXsorq_BWDAog4XCqTdjJyITvc/s2975/H%20Beta%20%20O111.blue%20%20H%20A%20red.%20%203..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2340" data-original-width="2975" height="504" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9mTUERSFhuzJOtKujho1Jyky6Kcb1ljM6DgGZ-Lhu7tBzHyyod6DwRSwapDwpiEUMgHJWRDI-_nUyce__0F7b_WM3_zlX6awt99pwvTiKgAVfQcDSf7jy2oYWYufjpxbnIFR_a9ZJioCXLNsULXe7uMjhfeforHXsorq_BWDAog4XCqTdjJyITvc/w640-h504/H%20Beta%20%20O111.blue%20%20H%20A%20red.%20%203..jpg" width="640" /></a></div><br /><p style="text-align: center;"><span style="font-size: medium;">Bi colour combined with the Hubble palette</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg0b4gHSA2_V1AHsVpZq85aDz9vEOuuR37qS4dK7D0mp-krO1fa-Y0LnI0Ct4kOhK6MibQyGA1r8-s6icXJESDf19M3GD4FgDdZWfx8bOXVmQHTP76mWycrhYNJDuFs6jQvxpXtmQu-Z7eFWgTNqG93ZeyfdLOLqHrZvEZPnj5tk9VRZnqTbgbS7MI/s2975/H%20Beta%20%20O111.blue%20%20H%20A%20red.%5Blus%20hubble%20palette..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2340" data-original-width="2975" height="504" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg0b4gHSA2_V1AHsVpZq85aDz9vEOuuR37qS4dK7D0mp-krO1fa-Y0LnI0Ct4kOhK6MibQyGA1r8-s6icXJESDf19M3GD4FgDdZWfx8bOXVmQHTP76mWycrhYNJDuFs6jQvxpXtmQu-Z7eFWgTNqG93ZeyfdLOLqHrZvEZPnj5tk9VRZnqTbgbS7MI/w640-h504/H%20Beta%20%20O111.blue%20%20H%20A%20red.%5Blus%20hubble%20palette..jpg" width="640" /></a></div><br /><div><br /></div>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-77035712246188462532023-04-12T05:40:00.005-07:002023-04-12T05:40:56.481-07:00The Rosette nebula<p><span style="font-family: inherit;">NGC2244.Two of these three images of the Rosette Nebula reveal extra data taken using an Astronomik H Beta filter. I was using a 4 inch F /6.3 refractor , a Vixen Atlux mount , PH auto guiding , a set of Astronomik narrowband filters , HA , S11, O111 and H Beta . with an Atik 383L mono CCD camera . I captured five minute sub frames with matching dark frames and combined them with flat field and bias frames to reduce the effect of noise and vignetting in the final image. The total exposure time was 30 minutes using an S11 filter , 30 minutes using an O111 filter , 60 minutes using a H Alpha filter and 65 minutes using a H Beta filter</span></p><p style="text-align: center;"><span style="font-family: inherit; font-size: medium;">H-alpha H-beta bicolour</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiwBZfaDEzPtS7L-ce-AXszEE16nt-wowJd-q2e7f0fVkhwiT1iu90uisQkirrgBV1Yzxtz6P6rVIIWJR_TXeFuKjZV76PgdI8VkxIHmgm5WnZCZZB9_X1CFR-n6GSfNC-NMWGtXNOKY1BzJ9PSDlZIkL98r4LhvtyO1yCKXvq3otVNdUDhokQaKFI/s3040/ngc2244%20H%20A%20h%20beta%20%20bi%20colour%20..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2310" data-original-width="3040" height="486" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiwBZfaDEzPtS7L-ce-AXszEE16nt-wowJd-q2e7f0fVkhwiT1iu90uisQkirrgBV1Yzxtz6P6rVIIWJR_TXeFuKjZV76PgdI8VkxIHmgm5WnZCZZB9_X1CFR-n6GSfNC-NMWGtXNOKY1BzJ9PSDlZIkL98r4LhvtyO1yCKXvq3otVNdUDhokQaKFI/w640-h486/ngc2244%20H%20A%20h%20beta%20%20bi%20colour%20..jpg" width="640" /></a></div><div><br /></div><span style="font-family: inherit; font-size: medium;"><div style="text-align: center;"><span style="font-family: inherit;">Hubble palette</span></div></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhEp1sIU_U9Bna7ELavRr29J9NqMNuSriez-xjGNl4_54sKUZ5QYxUxbTKKnFEnUEpYS_DOnZ1Bin5aJ1R-mOzcWgXNL4H_zBNcw2njYhIEBRCoufLftU_m1GdTAKtz30vJvgydy5b4F7Nj7M7w_CnftlzzYZIEHGLgG7e51Fn-og_2IYNCAWRmS90/s3215/ngc2244%20hubble%20palette..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2450" data-original-width="3215" height="488" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhEp1sIU_U9Bna7ELavRr29J9NqMNuSriez-xjGNl4_54sKUZ5QYxUxbTKKnFEnUEpYS_DOnZ1Bin5aJ1R-mOzcWgXNL4H_zBNcw2njYhIEBRCoufLftU_m1GdTAKtz30vJvgydy5b4F7Nj7M7w_CnftlzzYZIEHGLgG7e51Fn-og_2IYNCAWRmS90/w640-h488/ngc2244%20hubble%20palette..jpg" width="640" /></a></div><div><br /></div><span style="font-family: inherit; font-size: medium;"><div style="text-align: center;"><span style="font-family: inherit;">Hubble palette plus H-beta</span></div></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_De1omUF_pf5oQhOxvvIr6scqNoPXji-PbPtuvjjnGvNz-44d0u3yqa1lvxSuJSIIE_L15u1oxGgCparGY7BX2dyQU7zM2p2CxCIJCR4cCuw0fNekttUIfiDcAboTof6xXVTrFLATYY7e7CAaDXNlGdUXrC4QgN8fi9VnBBFFptYNy0zIPdl1zE8/s3092/ngc2244%20hubble%20palette..plus%20H%20Beta.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2276" data-original-width="3092" height="472" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_De1omUF_pf5oQhOxvvIr6scqNoPXji-PbPtuvjjnGvNz-44d0u3yqa1lvxSuJSIIE_L15u1oxGgCparGY7BX2dyQU7zM2p2CxCIJCR4cCuw0fNekttUIfiDcAboTof6xXVTrFLATYY7e7CAaDXNlGdUXrC4QgN8fi9VnBBFFptYNy0zIPdl1zE8/w640-h472/ngc2244%20hubble%20palette..plus%20H%20Beta.jpg" width="640" /></a></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-74416417411156251252023-04-09T11:39:00.000-07:002023-04-09T11:39:39.456-07:00The Coma cluster<p>NGC4872. The Coma cluster. This group of galaxies lies in the constellation of Coma Berenices. I took this image using my four inch f/6.3 refractor, a Vixen Atlux mount, PHD auto guiding, with a set of Astronomik R.G.B. filters, an IDAS filter, and an Atik 383L mono CCD camera. I captured five minute sub frames with matching dark frames and combined them with flat field frames and bias frames to reduce the effect of noise and vignetting in the final image. The total exposure time was ten minutes for each colour filter and two hours for the luminance channel using the IDAS filter.</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSaIplWu31ss_nyctwI7lYaeAgNI-L4gz677PyLYuMWWVM7tEs8jZ6v3155tNRQyJ__iRWPuuV_45g58v7d4WCdpeeCXkZF3fmpeix0mVyeXJMMoSgZvAgEcuBDXNwZdSOGwoeWRskR_BRWcInFLFQTW3NTDudwgHlZczoUNnFIwGludJI3ZxyZ50/s2920/NGC4872%20.%20%20..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2165" data-original-width="2920" height="474" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSaIplWu31ss_nyctwI7lYaeAgNI-L4gz677PyLYuMWWVM7tEs8jZ6v3155tNRQyJ__iRWPuuV_45g58v7d4WCdpeeCXkZF3fmpeix0mVyeXJMMoSgZvAgEcuBDXNwZdSOGwoeWRskR_BRWcInFLFQTW3NTDudwgHlZczoUNnFIwGludJI3ZxyZ50/w640-h474/NGC4872%20.%20%20..jpg" width="640" /></a></div><p>This image of the Coma cluster contains data from two telescopes , a 4 inch refractor and a ten inch reflector.</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiCO8_ifNwKRJenmw7GRJaTyRuN6FLqhMO1Zfuy2GReEx4KBIKsGOgeVdjovR6dJ6YQFZXCIHMg4LFeKrS9bN0wIwGj0t5m05ICuRsHmzYkTmL4V4zUbx3hLo4C4bSRBTXawEValaDqFHK8qW-qvqxjZhM7XL_DATcQG7mHswsLUZCi7P6z3y0ZZUk/s2816/Coma%20cluster%20..4._2.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2084" data-original-width="2816" height="474" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiCO8_ifNwKRJenmw7GRJaTyRuN6FLqhMO1Zfuy2GReEx4KBIKsGOgeVdjovR6dJ6YQFZXCIHMg4LFeKrS9bN0wIwGj0t5m05ICuRsHmzYkTmL4V4zUbx3hLo4C4bSRBTXawEValaDqFHK8qW-qvqxjZhM7XL_DATcQG7mHswsLUZCi7P6z3y0ZZUk/w640-h474/Coma%20cluster%20..4._2.jpg" width="640" /></a></div><br /><div><br /></div>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-72879290470500247632023-04-08T09:50:00.000-07:002023-04-08T09:50:06.537-07:00M105. NGC3389<p>M105. NGC3389. This group of galaxies lies in the northern part of the constellation of Leo. I was using my 4 inch f/6.3 refractor, a Vixen Atlux mount, PHD auto guiding and an Atik 383L mono CCD camera. I used an Idas filter for the luminance data and RGB filter for the colour data. I captured five minute sub frames with matching dark frames and combined them with flat field frames and bias frames to reduce the effect of noize and vignetting in the final image. The total exposure time was 60 minutes using the Idas filter and ten minutes for each RGB filter.</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijuSs2nqM7XQUWO8s0y_uLKCjhu1skb0ezX3b554M9AJYuvouOREFpWBkV0mAqtpeNzEFXD4hhCLrM8NpDRHLzo6xykPMY7_9zL8amnisS8jkYsdaQCZaXbxOXgcXczpN3QgIr9kiHRKulK2B-x-mzV0yumb4bjQmjGoc-K-dwjPaCdermrZqIu9A/s3260/M105.%20..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2405" data-original-width="3260" height="472" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijuSs2nqM7XQUWO8s0y_uLKCjhu1skb0ezX3b554M9AJYuvouOREFpWBkV0mAqtpeNzEFXD4hhCLrM8NpDRHLzo6xykPMY7_9zL8amnisS8jkYsdaQCZaXbxOXgcXczpN3QgIr9kiHRKulK2B-x-mzV0yumb4bjQmjGoc-K-dwjPaCdermrZqIu9A/w640-h472/M105.%20..jpg" width="640" /></a></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-43749540760886352692023-03-15T06:21:00.001-07:002023-03-15T06:21:31.268-07:00B33<p>Here is an image of B33 taken using a blue filter on two separate evenings. To prevent the stars from saturating I only captured 60 second sub frames with matching dark frames. I then combined them with flat field frames and bias frames to reduce the effect of vignetting in the final image. The total exposure time was two hours. The colour data were taken using H-alpha for red O111 for green and aditional blue filter for blue. plus a combination of old RGB data.</p><div class="separator" style="clear: both; text-align: center;"><br /></div><div class="separator" style="clear: both; text-align: center;"><span style="font-size: medium;">Captured through a blue filter</span><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhauB2YW_SOKDDE05xMiF94h-dku_6fV53CVUltbnrADb-c_NUTwXOWRFGeEyA8byfCv38bAHu3U1PLfBIf4G-S-8huk65m8kWdQW2bt6pqgTPruv3nB6UYq2pwhBN4v3hMhIXQv6ZyaLQ9TBtZ-p9MyBP3BL18eHvqv2Fq3SEiMEOwIJjcUUNVkuI/s3234/b33%20blue..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2365" data-original-width="3234" height="468" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhauB2YW_SOKDDE05xMiF94h-dku_6fV53CVUltbnrADb-c_NUTwXOWRFGeEyA8byfCv38bAHu3U1PLfBIf4G-S-8huk65m8kWdQW2bt6pqgTPruv3nB6UYq2pwhBN4v3hMhIXQv6ZyaLQ9TBtZ-p9MyBP3BL18eHvqv2Fq3SEiMEOwIJjcUUNVkuI/w640-h468/b33%20blue..jpg" width="640" /></a></div><br /><div style="text-align: center;"><span style="font-size: medium;">Final colour image</span></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyUZC78PoRmv0bECydz4_uEYfVKMhZ3BCtKwbBwL7F9VoT02Ni3JG9YXUkxPdsjbizW6i66sgcMFFIJVBwOxd16KHCe8AFYoh-Y9cEtmqQBTGxg9-3PkgwYxu0ndYOS_9iWf_mW2_v3snuZsq27_P8T_fxv-zBx49rP710RfRKDEefn-nzdnfFOtg/s3175/Horsehead%20..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2276" data-original-width="3175" height="458" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyUZC78PoRmv0bECydz4_uEYfVKMhZ3BCtKwbBwL7F9VoT02Ni3JG9YXUkxPdsjbizW6i66sgcMFFIJVBwOxd16KHCe8AFYoh-Y9cEtmqQBTGxg9-3PkgwYxu0ndYOS_9iWf_mW2_v3snuZsq27_P8T_fxv-zBx49rP710RfRKDEefn-nzdnfFOtg/w640-h458/Horsehead%20..jpg" width="640" /></a></div><br /><div><br /></div>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.comtag:blogger.com,1999:blog-905630161790432155.post-70014755470148827062023-03-04T05:55:00.002-08:002023-03-04T05:55:31.573-08:00Southern skies<p>These camera on tripod shots was taken from a Cape Verde resort using 4 x 20 second exposures, stacked together with the camera set at ISO 3200. The camera was a Cannon 50D and a Tamron 18mm - 270mm zoom lens. The images show the Southern Cross, Centaurus, Omega Centauri NGC5139 and the Jewel box cluster.</p><p style="text-align: center;"><span style="font-size: medium;">Southern Cross</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjs3fftBirYaxxbOe-FXN9BcuFTPJRcDbTXcC2Mf40b6dfJJlRO3EgM3XDyTHlR5sapZob2i44cLaz5pOSubik09I6WKECVVu53tQwVMWQQW_KRtRu-LQom4cckJeBnNSYInwLAy0pP9X3bXHBkXoC8Mi4n2K_hSREo9AP6jCPdM4_XiV5MNUaR1ZY/s4620/Southern%20cross%202..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3059" data-original-width="4620" height="424" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjs3fftBirYaxxbOe-FXN9BcuFTPJRcDbTXcC2Mf40b6dfJJlRO3EgM3XDyTHlR5sapZob2i44cLaz5pOSubik09I6WKECVVu53tQwVMWQQW_KRtRu-LQom4cckJeBnNSYInwLAy0pP9X3bXHBkXoC8Mi4n2K_hSREo9AP6jCPdM4_XiV5MNUaR1ZY/w640-h424/Southern%20cross%202..jpg" width="640" /></a></div><br /><p style="text-align: center;"><span style="font-size: medium;">Centaurus Crux</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcbtgqsxDgZkDpqC9F_DL4t_Kh0S27rOMrz2ive6OdzqoYxRyZi-Fi8C3UdeFmGtHSBDUla7Uj8kmlwZFRzv13wOJ9EZRaQhdF9uOr_8tVV0iPvNxywpNxG-U8F5JdipVUU2TQCZySyVNv4XVwgeZ-4l0XSE347aUx3nzxejUQ3emp-J4wwDebekA/s4752/centurus%20Crux.%20%202..jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3168" data-original-width="4752" height="426" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcbtgqsxDgZkDpqC9F_DL4t_Kh0S27rOMrz2ive6OdzqoYxRyZi-Fi8C3UdeFmGtHSBDUla7Uj8kmlwZFRzv13wOJ9EZRaQhdF9uOr_8tVV0iPvNxywpNxG-U8F5JdipVUU2TQCZySyVNv4XVwgeZ-4l0XSE347aUx3nzxejUQ3emp-J4wwDebekA/w640-h426/centurus%20Crux.%20%202..jpg" width="640" /></a></div><br /><p><br /></p>astroimagerhttp://www.blogger.com/profile/12730981946452250685noreply@blogger.com