M31 - The Andromeda Galaxy with Hydrogen Clouds (Neil Corke)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Andromeda Galaxy · HD3431 · HD3447 · HD3741 · HD3765 · HD3827 · HD3969 · HD4143 · HD4174 · HD4322 · HD4501 · M 110 · M 31 · M 32 · NGC 205 · NGC 206 · NGC 221 · NGC 224

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M31 - The Andromeda Galaxy with Hydrogen Clouds

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M31 - The Andromeda Galaxy with Hydrogen Clouds

I didn’t plan on imaging M31, but needed a target to test new equipment at the end of last year, and this was up at the time and used the H-alpha filter as the moon was bright. After three or four sessions, where the Voyager Array script had run all night there were over 100 x 600s images which after calibrating and stacking noticed the faint cloud detail.

Searching online, I discovered an amazing image by Rogelio Bernal Andreo with hydrogen clouds and only then decided to complete the image with about 80 hours of data.The H-alpha was enhanced using Continuum Subtraction courtesy of a recent @Adam Block video, and a few different luminance exposure lengths blended to try and preserve the core detail.

Takahashi Refractors
PixelSkiesAstro
Southern Hemisphere Astro
Messier Objects

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Status	Advanced success
Started	...
Astrometry.net job	7156089
PixInsight job	ZK88R9ICOAX885UHJ8ANYFYOL6AUOGS7
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h42m34s.42
RA (top/left)	00h47m58s.49
RA (top/right)	00h49m58s.60
RA (bottom/right)	00h36m51s.44
RA (bottom/left)	00h35m32s.72

Dec (center)	+41°13′16″.8
Dec (top/left)	+39°21′07″.6
Dec (top/right)	+42°51′23″.2
Dec (bottom/right)	+43°04′25″.9
Dec (bottom/left)	+39°33′33″.5

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M31 - The Andromeda Galaxy with Hydrogen Clouds

M31 - The Andromeda Galaxy with Hydrogen Clouds

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M31 - The Andromeda Galaxy with Hydrogen Clouds

M31 - The Andromeda Galaxy with Hydrogen Clouds

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