M31 HaLRGB 2 Panel Mosaic (Carl Brown)

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 HaLRGB 2 Panel Mosaic

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M31 HaLRGB 2 Panel Mosaic

Managed to get some imaging in at the cottage this year. Skies are bortle 3-4

Wildfire smoke moved in and lowered the quality of the subs from 7/10 - 7/12. Also had no astronomical darkness due to the northern latitude.

I typically image from downtown Calgary Alberta (bortle 8-9) so even with the smoke and lack of full darkness, my sub quality was much better.

Attempted a couple of new processing steps from my normal workflow:

- Subs were integrated using PixInsight's NormalizedScaleGradient script. My standard workflow used weighted subs and local normalization

- Mosaic was composed using Photometric Mosaic. My normal workflow used GradientMergeMosiaic.

Processing also used scripts from the EZ Processing Suite. If you use PixInsight, I'd highly recommend this script package.

Canadian Astrophotography

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

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
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

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
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
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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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	4798088
PixInsight job	5QDGTEB4E0EBKM66J3TJ1YFFHH921C0G
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h42m12s.68
RA (top/left)	00h37m04s.33
RA (top/right)	00h50m08s.34
RA (bottom/right)	00h47m34s.30
RA (bottom/left)	00h34m06s.79

Dec (center)	+41°15′55″.8
Dec (top/left)	+39°55′21″.3
Dec (top/right)	+40°33′02″.4
Dec (bottom/right)	+42°35′34″.10
Dec (bottom/left)	+41°56′40″.4

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M31 HaLRGB 2 Panel Mosaic

M31 HaLRGB 2 Panel Mosaic

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Sky plot

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Image Index:

Contribution Index (beta):

M31 HaLRGB 2 Panel Mosaic

M31 HaLRGB 2 Panel Mosaic

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

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