M31 Two Panel Mosaic (Tom Engwall)

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 2175091 · PGC 2176150 · PGC 2304 · PGC 2318 · PGC 3087883

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M31 Two Panel Mosaic

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M31 Two Panel Mosaic

The focal length of my my scope is 1050 mm, so I needed two panels to get at least 75% of M31. I would need at least 4 panels to get all of of it in and probably 6 panels to get a more traditional image. However, I like this close up and am satisfied with two panels. I used the mosaic technique as demonstrated by Ron Brecher of Masters of Pixinsight. This basically involves making a template with Star Alignment. Then the alignment of the panels with Star Alignment. The panels are then stitched together using Gradient by Mosaic. I've found this method to be be relatively easy and very effective. I probably should mention that I processed each panel first and then stitched them together. An alternative method would be to stitch together the panels for each filter then combine them. That obviously would be more time consuming, so I will have to try that sometime to see if it makes any significant difference.

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Deep Sky Northern Hemisphere
Deep Sky Mosaics

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Status	Advanced success
Started	...
Astrometry.net job	8775579
PixInsight job	8JQ9C4PR5APEPZAKQZGS74E4S4RSXPHR
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h42m35s.87
RA (top/left)	00h46m30s.46
RA (top/right)	00h38m24s.30
RA (bottom/right)	00h38m46s.59
RA (bottom/left)	00h46m43s.84

Dec (center)	+41°12′34″.4
Dec (top/left)	+41°51′35″.3
Dec (top/right)	+41°47′21″.1
Dec (bottom/right)	+40°33′08″.4
Dec (bottom/left)	+40°37′08″.10

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M31 Two Panel Mosaic

M31 Two Panel Mosaic

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M31 Two Panel Mosaic

M31 Two Panel Mosaic

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