The Realm of the Galaxies: Abell 1656 - The Coma Cluster (Prabhakaran)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: IC 3946 · IC 3947 · IC 3949 · IC 3955 · IC 3957 · IC 3959 · IC 3960 · IC 3963 · IC 3968 · IC 3973 · IC 3976 · IC 3998 · IC 4011 · IC 4012 · IC 4021 · IC 4026 · IC 4030 · IC 4033 · IC 4040 · IC 4041 · IC 4042 · IC 4044 · IC 4045 · IC 4051 · NGC 4854 · NGC 4858 · NGC 4860 · NGC 4864 · NGC 4865 · NGC 4867 · And 23 more.

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The Realm of the Galaxies: Abell 1656 - The Coma Cluster

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The Realm of the Galaxies: Abell 1656 - The Coma Cluster

The Coma Cluster (Abell 1656) is a large cluster of galaxies located in the constellation Coma Berenices. The Realm contains thousands of identified galaxies and as many as 10,000 or more members by some estimates, one of the densest known galactic groupings in the universe. There are more individual galaxies in this cluster than there are stars visible to the unaided human eye on a clear, dark night. The center of the Coma Cluster is about 320 million light-years away and it spans 20 million light-years. This cluster as a whole is moving away from us at the rate of about 6,900 km/second (more than 15 million miles per hour)!. The cluster is filled with galaxies of all shapes and sizes, from giant ellipticals to dwarf galaxies. Due to its location close to the galactic north pole, this direction of view (almost perpendicular to the plane of the Milky Way) is not affected by the gas and dust clouds of the plane. This cluster is also the source of our first ideas about the dark matter in our universe.

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	4507638
PixInsight job	D229NODCHXVL9SHBWP5KREHRA2CF3TH0
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	13h00m08s.635
RA (top/left)	13h00m56s.210
RA (top/right)	13h02m14s.456
RA (bottom/right)	12h59m20s.700
RA (bottom/left)	12h58m03s.595

Dec (center)	+27°58′04″.60
Dec (top/left)	+27°26′05″.80
Dec (top/right)	+28°17′09″.56
Dec (bottom/right)	+28°30′03″.82
Dec (bottom/left)	+27°38′52″.30

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Contribution Index (beta):

The Realm of the Galaxies: Abell 1656 - The Coma Cluster

The Realm of the Galaxies: Abell 1656 - The Coma Cluster

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Image Index:

Contribution Index (beta):

The Realm of the Galaxies: Abell 1656 - The Coma Cluster

The Realm of the Galaxies: Abell 1656 - The Coma Cluster

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