ABELL 1656 - Coma Cluster (gigiastro)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: IC 3949 · IC 4040 · IC 4051 · NGC 4848 · NGC 4850 · NGC 4853 · NGC 4865 · NGC 4867 · NGC 4869 · NGC 4874 · NGC 4889 · NGC 4895 · NGC 4896 · NGC 4907 · NGC 4908 · NGC 4911 · NGC 4919 · NGC 4921 · NGC 4923 · NGC 4926 · NGC 4929 · NGC 4931

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ABELL 1656 - Coma Cluster

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ABELL 1656 - Coma Cluster

Almost every object is a galaxy...

"NGC 4889 (Caldwell 35) is a supermassive elliptical galaxy in Coma Berenices.

The galaxy may be up to a thousand times the mass of the Milky Way, and its central

black hole is an estimated 21 billion solar masses. This leviathan lurks

308 million light-years away, at the center of the Coma Supercluster of galaxies.

The Earth of 308 million years ago was dominated by coal swamps. High levels of

atmospheric oxygen fueled the evolution of giants: dragonflies with 27-inch wingspans,

millipedes 7 feet long, and amphibians the size of crocodiles. But the Carboniferous

rainforest collapse of 305 million years ago led to global cooling and drying,

conditions which would favor a new group of animals with drought-resistant scales

and hard-shelled eggs. These were the first amniotes, the progenitors of all later

reptiles, dinosaurs, birds, and mammals."

(SKY & TELESCOPE • JUNE 2018 71)

cropping ('Region of Interest')-->drizzling x2 integration-->subsequent resampling (50%)

from original picture of 5202x3465 resolution

(unguided)

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	2687228
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

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Description

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Image Index:

Contribution Index (beta):

ABELL 1656 - Coma Cluster

ABELL 1656 - Coma Cluster

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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