• Image credit: NASA

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  • The Great Andromeda Galaxy, M31, is one of the most distant objects that can be seen with the unaided eye. It is high overhead in the constellation Andromeda on early winter evenings in the northern hemisphere.  In long-exposure photographs, like this one, dust lanes and bright star-formation regions are visible throughout the galaxy.  M31 is accompanied by satellite galaxies M32 and M110.  A pair of small dust lanes can be glimpsed near the core of M110, the lower satellite galaxy.  M31 is about 2.5 million light-years from Earth.

Two frame mosaic, each frame 96 minutes L on 2012-12-13 and 120 minutes RGB on 2013-01-04 through an Astro-Physics 105mm refractor at f6.2, plus 112 minutes L (of the galaxy core) through a 155mm Astro-Physics refractor at f5.4 on 2014-11-15, all using a QSI 583 from northern New Jersey.   North is to the right and slightly down.  © 2014.

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