A web site of deep-sky astronomical photographs, tips and techniques for digital DSLR astro-photography, and image processing in Photoshop:
http://www.astropix.com
http://www.astropix.com/HTML/SHOW_DIG/M31_The_Andromeda_Galaxy.HTM
Jupiter is seen here with its moon Europa emerging from behind the planet on October 9, 2011.
Comet Hale-Bopp passes near the North America Nebula
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