The location of Cygnus X-1.
Nick Hart's Astronomical Images from a light-polluted site
Thursday, 14 November 2024
Tuesday, 12 November 2024
The Tulip nebula
Sh2 - 101, The Tulip nebula. This patch of nebulosity lies in the constellation of Cygnus the Swan at a distance of about 6,000 light years. There is believed to be a black hole to the west of it. The sky conditions were very poor with high cirrus reflecting the moon light, stars were only visible down to about magnitude 3.5.
I was using my ten inch F4/8 reflector, a Vixen Atlux mount, PHD auto guiding, a set of Astronomik narrowband filters, S11, O111, HA, a blue filter and my 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 noise and vignetting in the final image . The total exposure time was 90 minutes using a H Alpha filter , 30 minutes using an O111 filter , 25 minutes using a S11 filter and ten minute using a blue filter.
RGB
BiColour
Saturday, 2 November 2024
NGC891
Monday, 28 October 2024
Images from the Exmoor National Park star party,
On October 25th and 26th, I participated in the Exmoor National Park star party, organized by the Yarn Market Hotel in Dunster, Somerset, and hosted by Terry Evans. I captured images of the Milky Way and Comet C/2023 A3, also known as Comet Tsuchinshan-Atas.
I used my Canon 10D with a Tamron 18mm-270mm zoom lens attached to my Astro Track mount. I took two-minute sub-frames along with matching dark frames, setting the camera to ISO 2300.
Thursday, 8 August 2024
The Gower night sky with as tracking mount and DSLR
The images were captured using an Astro Track mount, taking four three-minute subframes along with corresponding dark frames. These were then averaged to minimize noise in the final image. The camera used was a Canon 10D DSLR set to ISO 3200.
Tuesday, 6 August 2024
The Milky way from Oxwich Bay, Gower
I was using a Cannon 10 D DSLR on a static tripod . The exposure times were 30 seconds with matching dark frames. I then averaged four images together to reduce the effect of noise in the final images.
Milky way images
Friday, 28 June 2024
The Milky Way
After 1:00 am, when the full cutoff LED street lights are turned off, the difference in the sky is remarkable; stars become visible overhead down to about magnitude 5.3.
The following image was captured using a Canon 10D set at ISO 3200 with an 18mm lens at f/2.8. I took twelve ten-second subframes along with matching dark frames to minimize noise in the final image.
Another image was taken from my backyard in Newport at 2:00 am after the street lights were off. The Milky Way was clearly visible with stars down to about magnitude 5.4.
For this, I used my Canon 10D DSLR camera set at ISO 3200 on a tripod, with an 18mm lens at f/2.8. I captured 16 fifteen-second subframes with matching dark frames and stacked them using Deep Sky Stacker software.
Tuesday, 18 June 2024
M11 and M27
M11, The Wild Duck Cluster: Captured using a 10-inch f/4.8 reflector, Vixen Atlux mount with PHD auto-guiding, and a Canon 50D DSLR camera. I took 30-second subframes, integrating them with corresponding dark and flat field frames to minimize noise and vignetting. The total exposure time amounted to 15 minutes.
M27, The Dumbbell Nebula: This image was obtained with a 10-inch f/4.8 reflector, Vixen Atlux mount, PHD auto-guiding, and a Canon 50D DSLR camera. The camera was set to ISO 3200, capturing 30-second subframes, which were then merged with matching dark and flat field frames to lessen vignetting effects. The cumulative exposure time was 20 minutes.
M27, The Dumbbell Nebula: The image is a composite of data from two cameras, a Canon 50D DSLR and an Atik 383L mono CCD, utilizing narrowband filters: H Alpha, OIII, and SII.
Wednesday, 29 May 2024
The aurora on the 10th of May 2024
Images of the aurora on the 10th of May 2024 . I have reprocessed them stacking six two and a half second exposures together using Deep Sky Stacker.