Abell 1656 (Coma Cluster) wide field (Alicia Rossiter)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: HD112753 · HD112886 · HD112887 · 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 4853 · NGC 4854 · NGC 4858 · And 27 more.

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Abell 1656 (Coma Cluster) wide field

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Abell 1656 (Coma Cluster) wide field

The Coma cluster is a beautiful and very large area in the Constellation of Coma Berenices. It is estimated to have over 1000 galaxies and is 320 million LY from earth. The central region is dominated by 2 giant galaxies NGC4874 and NGC4889. In 1933 Fritz Zwicky showed that the galaxies in the coma were moving too fast for the cluster to be bound together by the visible matter of its galaxies, he wrote that the galaxies must be held together by dark matter, an idea that took another 50 years to be accepted!. Galaxy season calls for this beauty to be photographed. It is amazing that is possible to capture all this immensity just from the backyard.

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	7578751
PixInsight job	CNZZWXRMXNF2YWK4JJH0XO62PP457D1E
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h00m08s.696
RA (top/left)	12h58m48s.548
RA (top/right)	12h58m31s.866
RA (bottom/right)	13h01m28s.150
RA (bottom/left)	13h01m46s.412

Dec (center)	+27°56′31″.18
Dec (top/left)	+28°27′27″.85
Dec (top/right)	+27°28′03″.12
Dec (bottom/right)	+27°25′28″.25
Dec (bottom/left)	+28°24′54″.34

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Abell 1656 (Coma Cluster) wide field

Abell 1656 (Coma Cluster) wide field

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Image Index:

Contribution Index (beta):

Abell 1656 (Coma Cluster) wide field

Abell 1656 (Coma Cluster) wide field

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