M45 with Borg 77mm f/4 astrograph, with Canon 7D for 6 x 12 minutes at ISO400, as test of 7D noise. Last couple of images taken with Moon coming up. Stacked with Statistics: Mean. Extreme contrast boost. Noise Ninja and Reduce Noise applied to Smart Object.
M46 and M47 open clusters, with NGC 2423 above. Taken with 77mm Borg refractor at f/4.3 and Hutech-modified Canon 5D camera at ISO 800 for stack of 4 x 4 minute exposures. Taken from Ryder Cottage, April 11, 2007.
Open cluster pair of M47 (right), a bright loose cluster, and M46 (left), a fainter but very rich open cluster. Loose cluster at top right is NGC 2423. Planetary nebula NGC 2438 is at north edge of M46. Taken from Timor Cottage, Coonabarabran, NSW, Australia, December 12, 2010. This is a stack of 5 x 6 minute exposures at ISO 1600 with Canon 5D MkII camera on 105mm Astro-Physics Traveler apo refractor at f/5.8 with 6x7 field flattener.
