M31, Andromeda Galaxy (mosaic 2x1) (Jeroen Boumans)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: 35 And · Andromeda Galaxy · M 110 · M 31 · M 32 · NGC 205 · NGC 221 · NGC 224 · The star 32 And · The star ν And

M31, Andromeda Galaxy (mosaic 2x1), Jeroen Boumans

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M31, Andromeda Galaxy (mosaic 2x1)

Powered byPixInsight

M31, Andromeda Galaxy (mosaic 2x1)

Worked on my first mosaic of 2x1 panes. Decided to give M31, the Andromeda galaxy (accompanied by M32 and M110) a try. Took a bit of time to get used to the mono/mosaic setup in Pixinsight but quite happy with the final result. Especially with only 2 hours of Integration time. Had to ditch 1/4 of the shots since I'm not auto guiding.

Mosaic (Pixinsight)

WBPP (mono)
ImagePlateSolver
MosaicByCoordinates
LinearFit
GradientMergeMosaic
Clone tool for removing stars causing artifacts at bounds
DynamicBackgroundExtraction
HistogramTransformation
MultiscaleLinearTransform

After that all 4 LRGB channels were combined using LRGBCombination. Then another DynamicBackgroundExtraction to remove weird colored gradients. Coloring and curves adjustments are done in Photoshop. Could have been more contrast at the core but decided to call it good

Setup

ASI533mm Pro
RedCat 51
HEQ5 Pro (no auto guiding)
ASIAir ✨

Integration

Left pane (64 min): 8 x R, 7 x G, 8 x B, 9 x L of 120 seconds each,
Right pane (56 min): 6 x R, 7 x G, 8 x B, 7 x L of 120 seconds each,
Master dark frame,
Master bias frame

🔭 Clear skies everyone!

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Status	Basic success
Started	...
Astrometry.net job	6383760
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M31, Andromeda Galaxy (mosaic 2x1)

M31, Andromeda Galaxy (mosaic 2x1)

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M31, Andromeda Galaxy (mosaic 2x1)

M31, Andromeda Galaxy (mosaic 2x1)

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Histogram

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