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Contains:  IC 4041, IC 4040, NGC 4895, NGC 4889, NGC 4886, NGC 4874, NGC 4873, NGC 4872, NGC 4871, NGC 4869, NGC 4867, NGC 4865, IC 3963, NGC 4864, NGC 4860
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Coma Cluster, 


Coma Cluster

Coma Cluster

Technical card

Resolution: 2588x2100

Dates:March 16, 2016March 30, 2016April 4, 2016

Astrodon 1.25" B: 23x300" -20C bin 1x1
Astrodon 1.25" G: 23x300" -20C bin 1x1
Astrodon 1.25" L: 93x300" -20C bin 1x1
Astrodon 1.25" R: 24x300" -20C bin 1x1

Integration: 13.6 hours

Darks: ~20

Flats: ~80

Flat darks: ~80

Bias: ~20

Avg. Moon age: 18.46 days

Avg. Moon phase: 44.14% job: 1027860

RA center: 194.978 degrees

DEC center: 27.990 degrees

Pixel scale: 0.637 arcsec/pixel

Orientation: 84.831 degrees

Field radius: 0.295 degrees

Locations: Home, Rancho Santa Fe, California, United States


The Coma Cluster is a large cluster of galaxies that contains over 1,000 identified galaxies.

The cluster's mean distance from Earth is 321 million light years. Its ten brightest spiral galaxies have apparent magnitudes of 12–14 that are observable with amateur telescopes larger than 8". The central region is dominated by two supergiant elliptical galaxies: NGC 4874 and NGC 4889. Most of the galaxies that inhabit the central portion of the Coma Cluster are ellipticals. Both dwarf and giant ellipticals are found in abundance in the Coma Cluster.

The full extent of the cluster was not understood until it was more thoroughly studied in the 1950s by astronomers at Mount Palomar Observatory.



License: None (All rights reserved)

Sky plot

Sky plot


Coma Cluster, 



In these public groups

Images from the EdgeHD Series