Abell 2634 Galaxy Cluster   HOME INDEX BACK NEXT

Galaxy Cluster in Pegasus

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The expansive constellation of Pegasus contains a wealth of galaxies and galaxy clusters. One of these galaxy cluster is Abell 2634, located in the northern portion of the "Great Square" that forms the most distinctive part of Pegasus. There is considerable uncertainty about the distance of the cluster, but it seems clear that it is several hundred million light years away.

The brightest member of this cluster is NGC 7720, an elliptical that appears to have a double nucleus, which is actually a separate, nearby galaxy.

NGC 7720:

Magnitude 12.4
Apparent Size 1.6' x 1.3'
Distance (light yrs) 477 million
Right Ascension 23:38.5
Declination +27 02
Field of View 31' x 24'

Image details:  Exposure times of 130 minutes luminance and 30 minutes each of red, green and blue, taken with an SBIG ST-8300M imager and a 12" Meade telescope at f/6.5.

October 2013