NGC7635, The Bubble nebula. This emission nebula lies in the constellation of Cassiopeia at a distance of about 11,000 light years. This unguided image was taken using one minute sub frames stacked with dark frames. An Atik 314L CCD camera was used with a ten inch, f/4.8 reflector. The exposure times for the colour channels was two minutes through each RGB filter. However the luminance channel in H-alpha had a total exposure time of two hours
NGC891. This edge on spiral galaxy lies in the constellation of Andromeda, shining at magnitude 10.8, at a distance of 27 - 30 million light years. Four, five minute sub-frames were captured for each colour channel, with matching dark frames. A ten inch, f/4.8 reflector was used with PHD auto guiding and an Atik 383L CCD camera.
