M31 - Andromeda Galaxy (Paul Ricker)

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

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M31 - Andromeda Galaxy

M31, the Andromeda Galaxy. This is the nearest large (Milky Way-size) galaxy to our own. It's on a collision course for us and will get here in about a billion years. During the ensuing collision virtually no stars will actually hit each other, but some stars will be ejected and the rest will settle into a new, merged, galaxy. Clouds of gas in the two galaxies will collide and produce a burst of new star formation. Eventually the central supermassive black holes of the two galaxies will merge, possibly becoming briefly active due to accreting material and producing relativistic jets. The entire process will take several hundred million years. M31 is already warped, I think (?) due to interaction with its satellite galaxies M110 (below center) and M32 (above left).

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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
Artificial satellite

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	...
PixInsight job	HPUOGET3II4SST5ZBLL9GOZFDYBUOCK7
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h42m20s.23
RA (top/left)	00h42m52s.25
RA (top/right)	00h48m01s.93
RA (bottom/right)	00h41m46s.40
RA (bottom/left)	00h36m44s.28

Dec (center)	+41°19′10″.7
Dec (top/left)	+40°06′32″.9
Dec (top/right)	+41°54′11″.2
Dec (bottom/right)	+42°31′54″.10
Dec (bottom/left)	+40°43′04″.1

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M31 - Andromeda Galaxy

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M31 - Andromeda Galaxy

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