M31 - The Andromeda Galaxy in Ha-LRGB (Fran D.)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: 35 And · 35 nu. And · Andromeda Galaxy · HD3431 · HD3765 · HD3969 · HD4143 · HD4174 · HD4322 · HD4501 · HD4669 · M 110 · M 31 · M 32 · NGC 205 · NGC 206 · NGC 221 · NGC 224 · The star ν And

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M31 - The Andromeda Galaxy in Ha-LRGB

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M31 - The Andromeda Galaxy in Ha-LRGB

M31, the Great Andromeda Galaxy, is possibly the most photographed item in the night sky (apologies to M42!). It is visible under dark, moonless skies with the naked eye. Two of its largest satellite galaxies , M32 and M110, are clearly visible in this image. M31 is computed to be ~2.5 million light years away. It is very similar to our Milky Way galaxy in structure, but from a size standpoint., is approximately twice the size of the Milky Way.

This is an Ha-LRGB image. The HA data highlights several start forming regions of the galaxy along the outer rings. The original data was recorded over a three night span. In October 2023 I added 7+ hours of Ha to the image.

ZWO ASI294MM Pro Images
The refractors!
Cloudy Nights
Central USA

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
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	8654637
PixInsight job	KLVUI5V4EJ142OEG6GCEUKVSUIB7HNDH
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h42m44s.36
RA (top/left)	00h51m35s.66
RA (top/right)	00h38m07s.80
RA (bottom/right)	00h33m49s.43
RA (bottom/left)	00h47m33s.17

Dec (center)	+41°18′14″.7
Dec (top/left)	+41°01′56″.4
Dec (top/right)	+39°51′36″.9
Dec (bottom/right)	+41°31′54″.7
Dec (bottom/left)	+42°44′04″.10

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Contribution Index (beta):

M31 - The Andromeda Galaxy in Ha-LRGB

M31 - The Andromeda Galaxy in Ha-LRGB

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Image Index:

Contribution Index (beta):

M31 - The Andromeda Galaxy in Ha-LRGB

M31 - The Andromeda Galaxy in Ha-LRGB

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

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