M31 - Andromeda Galaxy in HaLRGB (Neal Weston)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Andromeda Galaxy · M 110 · M 31 · M 32 · NGC 205 · NGC 206 · NGC 221 · NGC 224 · PGC 2168731 · PGC 2168810 · PGC 2175082 · PGC 2175091 · PGC 2176150 · PGC 2183588 · PGC 2189331 · PGC 2544 · PGC 2748 · PGC 3087883 · PGC 90494

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M31 - Andromeda Galaxy in HaLRGB

Revision title: M31 in HaLRGB with a more neutral colour balance

Powered byPixInsight

M31 - Andromeda Galaxy in HaLRGB

Revision title: M31 in HaLRGB with a more neutral colour balance

I'm not sure how many more M31s the astroimaging world really needs but hey

Another target of opportunity during the recent poor weather with a full moon and my intended target washed out. I wouldn't normally attempt RGB in these conditions but M31 is big and bright so why not.
I tried out a new (for me) technique of continuum subtraction of the Ha from the red signal and recombined using Juergen Terpe's Toolbox scripts in PI. The Ha certainly stands out better than in the straight RGB version.

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B

Title: M31 in HaLRGB with a more neutral colour balance

Description: Yellow cast toned down for a more neutral colour balance

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Sony 694 Images

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Status	Advanced success
Started	...
Astrometry.net job	9538201
PixInsight job	8UN206O2A97KYYMIKYXMKBU9D30K23U1
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h43m06s.63
RA (top/left)	00h47m12s.68
RA (top/right)	00h47m17s.59
RA (bottom/right)	00h38m55s.32
RA (bottom/left)	00h39m01s.13

Dec (center)	+41°16′00″.9
Dec (top/left)	+40°33′26″.5
Dec (top/right)	+41°58′11″.1
Dec (bottom/right)	+41°58′04″.7
Dec (bottom/left)	+40°33′19″.6

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M31 - Andromeda Galaxy in HaLRGB

Revision title: M31 in HaLRGB with a more neutral colour balance

M31 - Andromeda Galaxy in HaLRGB

Revision title: M31 in HaLRGB with a more neutral colour balance

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M31 - Andromeda Galaxy in HaLRGB

Revision title: M31 in HaLRGB with a more neutral colour balance

M31 - Andromeda Galaxy in HaLRGB

Revision title: M31 in HaLRGB with a more neutral colour balance

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