Abell 1656 Coma Cluster (Hans van Overzee)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: IC 3943 · IC 3949 · IC 4051 · NGC 4860 · NGC 4865 · NGC 4874 · NGC 4881 · NGC 4889 · NGC 4895 · NGC 4907 · NGC 4908 · NGC 4911 · NGC 4919 · NGC 4921 · NGC 4926 · NGC 4927

Abell 1656 Coma Cluster, Hans van Overzee

Powered byPixInsight

Abell 1656 Coma Cluster

Powered byPixInsight

Abell 1656 Coma Cluster

Four nights I have taken photo’s of the cluster during the grey nights in the netherlands. A total of about 5 hours

The Coma Cluster (Abell 1656) is a large cluster of galaxies that contains more then 1,000 galaxies.

The cluster’s mean distance to the Earth is 321 million light years.

The central region is dominated by two giant elliptical galaxies NGC 4874 and NGC 4889.

Most of the galaxies in the cluster are elliptical The cluster is within a few degrees of the galactic pole.

Hendrik Jan Oort suggested in 1932 the possibility of Dark Matter when he studied The Milkyway

When Zwicky examined the Coma cluster in 1933 he showed that the galaxies of the cluster were moving too fast for the cluster to be bound together by the visible matter of its galaxies. Zwicky wrote that the galaxies must be held together by "dunkle Materie”

It would last an other fifty years before dark matter was excepted.

Suburban Astrophotography
Light Polluted skies
Dutch Imagers

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	Basic success
Started	...
Astrometry.net job	4668289
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

Abell 1656 Coma Cluster

Abell 1656 Coma Cluster

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Abell 1656 Coma Cluster

Abell 1656 Coma Cluster

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information