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M31 / Andromeda Galaxy

Classification: Spiral galaxy M31, NGC224
Constellation: Andromeda (AND)
Object Location: Ra 00h 43m 35s Dec +41° 21’14° (current)
Size & Distance: 189.1 x 61.7 Apx 2.5 Million light-years.

Date & Location: 07-21/22-2017 Palomar Mountain
Exposure: HaLRGB 90,65,60,60,60, Ha 4x15-3x10, L 13x5 RGB 6x10 all (bin 1x1).
Optics: Telescope Engineering Company APO110FL @ f/5.74, 631mm using the Optec FocusLynx.
Mount: Astro-Physics 1200 GTOCP4 / ATS 10x36 pier.
Camera: FLI-ML16200 G1@-25c / FLI CFW2-7 / Guided by SBIG ST-I / w OAG.
Filters: Astrodon G2 50mm LRGB 3nm Ha
Software: MaxImDL 6.10, CCDStack, Photoshop CS5, Topaz Lab.

Notes: Sky conditions: Above average seeing, no winds, 70’
Image Field of view is 117 x 146 arcmin.

Andromeda, Also known as 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 nearest galaxy overall.The Andromeda Galaxy is the largest galaxy of the Local Group, which also contains the Milky Way, the Triangulum Galaxy, and about 44 other smaller galaxies.
Also in the FOV are the two satellite galaxies M110 (NGC205) and M32 (NGC221)