M31 Medium Field (DerPit)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: 20 pi. Cas · 32 And · 35 nu. And · 37 mu. And · 39 And · 41 And · 42 phi And · 43 bet And · 44 And · 45 And · Andromeda · Andromeda galaxy · Great Nebula in Andromeda · IC 1550 · M 110 · M 31 · M 32 · Mirach · NGC 205 · NGC 206 · NGC 218 · NGC 224 · NGC 272 · NGC 317 · NGC 389 · NGC 393 · NGC 404 · Part of the constellation Andromeda (And) · R And · The star 32And · And 9 more.

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M31 Medium Field

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M31 Medium Field

My first (real) go at processing one-shot-color. All I have is an MFT EVIL camera (G5), but why not try it? 27 frames of 30s each using Llong exposure noise reduction. I took also flats and flat darks, but couldn't use them to correct the light frames. LENR seems to do more/something else....

Processed the RGB way: Split with dcraw, drizzle 3x, average, subtract background fit for black point, combine to RGB, some some contrast stretch, and sclae down 2.

The latter mostly because the lens has strong blue halos around bright stars. Guess I do need a UV filter for it....

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Status	Advanced success
Started	...
Astrometry.net job	2256032
PixInsight job	FD78B6UJ2RUUWD964G6HIUGF05B48C56
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h46m50s.8
RA (top/left)	01h16m28s.9
RA (top/right)	01h10m50s.6
RA (bottom/right)	00h22m37s.1
RA (bottom/left)	00h17m29s.10

Dec (center)	+40°50′55″
Dec (top/left)	+47°16′48″
Dec (top/right)	+33°59′08″
Dec (bottom/right)	+34°01′19″
Dec (bottom/left)	+47°18′47″

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M31 Medium Field

M31 Medium Field

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M31 Medium Field

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