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By Alan Silverstein, ajs@frii.com (page updated Sun Nov 13 22:11:23 MST 2011)
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The Andromeda Galaxy is our Milky Way's closest spiral galactic neighbor, located about 2 million light-years away. Though visible as a faint smudge with the naked eye, the galaxy comes to life when viewed with basic observing equipment. Amateur astronomer Robert Gendler combined 40 gray-scale frames of the galaxy to create this beautiful image. Color came from previous images. Access to these tools, Nemiroff notes, allows amateurs to contribute scientifically valuable images to astronomy.
