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Full database:

Entire DOCdb database of 18,816 objects.



Abell 1656 (10,777 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




finder chart

altitude today

altitude (year)


½°, , in DOCdb

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Coma Galaxy Cluster

Abell 1656, ACO 1656, Coma Cluster, Coma I, Coma Galaxy Cluster

RA: 12h 59m 48.7s
Dec: +27° 58′ 50″

Con: Coma Berenices
Ch: MSA:653, U2:149, SA:7


(reference key)

Type: galaxy cluster

Mag: B=13.5, V=10.7

Size: ?
PA: ?

Image gallery

Photos  (2)

Select a photo and click the button to view

Published comments

Dressler (1980)

Dressler, A. (1980) A catalog of morphological types in 55 rich clusters of galaxies. Astrophys.J.Suppl.Ser., 42, 565-609.

STScI/AURA press release (2010 Aug 10)

NGC 4911: An "island universe" in the Coma Cluster

Photo index

Photo index by Jim Lucyk: Sky & Tel. 1/79 p13, Sky & Tel. 3/83 p211, Sky & Tel. 5/80 p367, Sky & Tel. 4/69 p227 (central part), Sky & Tel. 5/74 p311, Sky & Tel. 7/73 p13, Sky & Tel. 7/85 p22, Sky & Tel. 11/84 p399, Sky & Tel. 1/88 p17, Astronomy mag. 3/74 p10

Photo index by Jim Lucyk: Deep Sky #10 Sp85 p8

Modern observations


Also known as the Coma Galaxy Cluster, it can be seen in an 8-inch reflector. With a 2.5-inch refractor at 60x the two brightest members can be glimpsed.

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