Andromeda Galaxy (M31) - blink animation LRGB + Ha (dswtan)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Andromeda Galaxy · M 110 · M 31 · M 32 · NGC 205 · NGC 206 · NGC 221 · NGC 224

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Andromeda Galaxy (M31) - blink animation LRGB + Ha

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Andromeda Galaxy (M31) - blink animation LRGB + Ha

First proper run at Andromeda - LRGB, LRGB-Ha, and a GIF blink animation between the two - for Christmas!

Standing on the shoulders of the many inspiring notable photos of M31 on this site, I was particularly struck by the excellent recent https://www.astrobin.com/y3fx05/0/ by dheilman, a 4 panel 10hr/panel mosaic -- lovely capture. I was pleased to find Hubble's "VAR!" Cepheid visible in my own image, which I never would've spotted without his post - thank you!

5.7hrs total integration over 5 nights LRGB
8.6hrs total integration over 5 nights (2 Ha) LRGB-Ha

89xR 61xG 74xB 120xL2 172xHa - 60s, unity gain 120

If I come back to re-process this at some point, I'll probably look at again at the colors in the outer stars, but the current version deliberately emphasizes the nebula at least.

Previous version was just a test of a two-panel mosaic with only 35mins each panel: https://astrob.in/n86sba/0/. Mosaics are two tricky from my location due to limited angles, so I went for the single panel at 448mm and it seems to work fine.

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Status	Advanced success
Started	...
Astrometry.net job	5332223
PixInsight job	3U853V8U9TQF4EHIMCO714SD9UMHPQDL
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h42m47s.30
RA (top/left)	00h46m49s.97
RA (top/right)	00h47m23s.27
RA (bottom/right)	00h38m34s.38
RA (bottom/left)	00h38m20s.39

Dec (center)	+41°16′32″.8
Dec (top/left)	+40°03′07″.10
Dec (top/right)	+42°26′22″.4
Dec (bottom/right)	+42°29′30″.8
Dec (bottom/left)	+40°06′07″.7

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Andromeda Galaxy (M31) - blink animation LRGB + Ha

Andromeda Galaxy (M31) - blink animation LRGB + Ha

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Andromeda Galaxy (M31) - blink animation LRGB + Ha

Andromeda Galaxy (M31) - blink animation LRGB + Ha

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