M31 - Mosaic - 1st Attempt (nazarine)

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

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M31 - Mosaic - 1st Attempt

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M31 - Mosaic - 1st Attempt

This is a two part mosaic of M31 - i am not 100% happy with it as the bottom and top half had different intensity levels and no matter how hard i try i have not been able to eliminate the noticable difference without totally destroying the image.

I'm going to process the two halves separately and post them up later so i can see a comparison of what the images can look like individually

Original
Final
B

B

Description: Finally figured out what i was doing wrong with Mosaics.
I now realise you have to go through the processing flow as follows before attempting mosaic
Crop (get rid of edges caused by Dithering)
Colour Calibration
Background Removal

Backgroudn Removal and Colour Calibration made a huge difference when it came to the Mosaic production and the seams are almost invisible now, a bit of pinching of a star along the seam but this was only an experiment to see how well i could do things with new knowledge.
I now need to gather M31 with a proper mosaic planning instead of the haphazard approach i adopted initially

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	3586013
PixInsight job	NV5IZ26S4UZ74FBRK5YQXHSENRZBRXEU
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h42m18s.257
RA (top/left)	00h45m24s.359
RA (top/right)	00h41m35s.866
RA (bottom/right)	00h39m13s.880
RA (bottom/left)	00h43m00s.210

Dec (center)	+41°06′51″.29
Dec (top/left)	+41°14′33″.60
Dec (top/right)	+41°41′48″.68
Dec (bottom/right)	+40°58′52″.31
Dec (bottom/left)	+40°31′55″.88

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M31 - Mosaic - 1st Attempt

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M31 - Mosaic - 1st Attempt

M31 - Mosaic - 1st Attempt

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