M31 - Andromeda Galaxy LHaRGB Mosaic (Dong Liang)

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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M31 - Andromeda Galaxy LHaRGB Mosaic

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M31 - Andromeda Galaxy LHaRGB Mosaic

A five panel mosaic of M31 Andromeda Galaxy. Took two month to collect sufficent data for this one.

Why five panels? Originally 4 panels were planed. But when I proceeded to post processing. I found that due to bad telescope collimation, the galaxy core which is the coner for all four panels were very ugly. So I decided to take a fifth panel in November. And here we go.

This was taken during tuning phase of my telescope. And compounded with the unstable weather, there are trianglar stars, blue color drifted away and bad linar adaption.

Luckly, the main feature of the glaxy is fine. I pinched the background dead black to hide everytihing else. lol

Original
B
C
D
Final
G

B

Title: A down sampled version

Description: The full resolution was too big to download and causing mobile browser crash (at least chrome on my phone can't open the full image).
Also, fixed the stars a bit and no photoshop sharpening this time.

Uploaded: ...

C

Title: The core of M31

Description: A zoom in of the core. Feels better even.

Uploaded: ...

D

Description: 1. Fixed distortion to the right.
2. Made very bright star to the left a bit more confortable.
3. Improved two obvious stitches.
4. Improved star shape.
5. Increased saturation to the edge of the galaxy. So Ha features are now more visualable.
6. adjusted color of m32 and m110.

Uploaded: ...

G

Description: The downsampled version of D

Uploaded: ...

Fast Newtonians
QHY Users Group
Imaged with N.I.N.A.
N.I.N.A. Users
Southern Hemisphere Astro
Imagers of Gaoyazi-Observatory, China

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Status	Advanced success
Started	...
Astrometry.net job	5252519
PixInsight job	D513F9NDO85CC4EBU0AGFQU1PXK8AQ94
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h42m44s.40
RA (top/left)	00h46m29s.66
RA (top/right)	00h46m58s.83
RA (bottom/right)	00h38m49s.58
RA (bottom/left)	00h38m38s.23

Dec (center)	+41°16′26″.8
Dec (top/left)	+40°05′23″.7
Dec (top/right)	+42°24′24″.5
Dec (bottom/right)	+42°26′58″.3
Dec (bottom/left)	+40°08′04″.0

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M31 - Andromeda Galaxy LHaRGB Mosaic

M31 - Andromeda Galaxy LHaRGB Mosaic

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Image Index:

Contribution Index (beta):

M31 - Andromeda Galaxy LHaRGB Mosaic

M31 - Andromeda Galaxy LHaRGB Mosaic

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Acquisition details

Description

Comments

Revisions

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C

D

G

Sky plot

Histogram

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