M31 - The Great Andromeda Galaxy: HaRGB Mosaic (Arvind H.)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Andromeda galaxy · Great Nebula in Andromeda · M 110 · M 31 · M 32 · NGC 205 · NGC 206 · NGC 221 · NGC 224

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M31 - The Great Andromeda Galaxy: HaRGB Mosaic

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M31 - The Great Andromeda Galaxy: HaRGB Mosaic

What started as an attempt to capture M31 through my 714mm FL ES 102 refractor + DSLR ended up becoming a 4 month long 5 panel project.

After capturing 7 hours of the central part starting in Sept 2018 , I succumbed to the desire to capture the galaxy in its entirety. I then set out to capture 4 additional sections for a mosaic. I got about 90 mins each of the galaxy extremities before the bad weather spell in Northern CA put a stop to further imaging. I was left with needing two more sections when a break in Jan allowed me to capture 45mins each of the remaining sections. Unfortunately it was not a dark site and M31 was already low on the horizon ~30 deg.

Not one to leave a project unfinished, I've processed the image dealing with the uneven integration on the different panels as best as I could.

Thrown into this is also ~4hours of H-alpha (through DSLR) from my suburban light polluted backyard. This is for the central panel only.

Final
Original
B

B

Description: With 'cooler' colors. Not sure if this is an improvement but wanted to try it out.

Uploaded: ...

The OSC Club (One Shot Camera)
Cloudy Nights

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	Distinct awarded users	Total awarded images
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Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
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Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
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Amateur hosting facility
Public amaeteur data
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Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	2671564
PixInsight job	JRLUCRRONL1FTYA4407VUYBGE3X2P17K
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h42m51s.89
RA (top/left)	00h43m24s.69
RA (top/right)	00h49m16s.34
RA (bottom/right)	00h42m17s.18
RA (bottom/left)	00h36m39s.73

Dec (center)	+41°15′31″.8
Dec (top/left)	+39°40′50″.0
Dec (top/right)	+42°17′36″.1
Dec (bottom/right)	+42°50′08″.3
Dec (bottom/left)	+40°12′09″.4

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M31 - The Great Andromeda Galaxy: HaRGB Mosaic

M31 - The Great Andromeda Galaxy: HaRGB Mosaic

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Image Index:

Contribution Index (beta):

M31 - The Great Andromeda Galaxy: HaRGB Mosaic

M31 - The Great Andromeda Galaxy: HaRGB Mosaic

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

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