AstroPhotography by Dan Richey

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M31 / M32 / M110
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M31 / M32 / M110

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The Andromeda Galaxy is a spiral galaxy approximately 2.5 million light-years from Earth in the Andromeda constellation. Also known as Messier 31, M31, or NGC 224, it is often referred to as the Great Andromeda Nebula in older texts. The Andromeda Galaxy is the nearest spiral galaxy to our Milky Way galaxy, but not the closest galaxy overall. It gets its name from the area of the sky in which it appears, the constellation of Andromeda, which was named after the mythological princess Andromeda. The Andromeda Galaxy is the largest galaxy of the Local Group, which also contains the Milky Way, the Triangulum Galaxy, and about 30 other smaller galaxies. Although the largest, the Andromeda Galaxy may not be the most massive, as recent findings suggest that the Milky Way contains more dark matter and could be the most massive in the grouping. M32 is the small elliptical galaxy beside M31 and M110 is the elliptical galaxy somewhat further away from M31

Object Information

Name M31 / M32 / M110
Constellation Andromeda
Catalogue M31/NGC 224

Acquisition / Processing

Exposure CCDAP Acquisition / Exposure
L - 40 x 600 sec Bin1
Ha - 15 x 1200 sec Bin 1
R,G & B - each 20 x 600 sec Bin 1
Total 21.67 Hr
Telescope AP 160 @ f5.7
Camera SBIG STL-11
Camera Temp -15ยบ C
Guiding SBIG RGH
Mount AP 900GTO
Filters Astrodon-Gen 2 LRGB, 3nm Ha
Processing PixInsight
Location San Pedro Creek, NM
Date August 29, 2014

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