Abell 2147 is a galaxy cluster

Galaxy cluster

A galaxy cluster is a compact cluster of galaxies. Basic difference between a galaxy group and a galaxy cluster is that there are many more galaxies in a cluster than in a group. Also, galaxies in a cluster are more compact and have higher velocity dispersion. One of the key features of cluster is...

 in the Abell catalogue

Abell catalogue

The Abell catalog of rich clusters of galaxies is an all-sky catalog of 4,073 rich galaxy clusters of nominal redshift z 18.0*Galactic-Latitude: Areas of the sky in the neighbourhood of the Milky Way were excluded from the study because the density of stars in those fields—not to mention...

. It is located within the core of the Hercules Superclusters

Hercules Superclusters

The Hercules Superclusters refers to a set of two nearby superclusters of galaxies.Relative to other local superclusters, Hercules is considered particularly large, being approximately 330 Mly in diameter...

, within Serpens Caput, approximately two degrees south southwest of the Hercules Cluster

Hercules Cluster

The Hercules Cluster is a cluster of about 100 galaxies some 650 million light-years distant in the constellation Hercules. It is rich in spiral galaxies and shows many interacting galaxies...

 (AGC 2151). It is possible that Abell 2147 is actually part of the Hercules Cluster considering that it shares the same redsift of 550 million light years.

This galaxy cluster contains mostly faint, small and scattered galaxies.

External links

• Image
• Numerous images from the Chandra X-ray Observatory
  Chandra X-ray Observatory
  The Chandra X-ray Observatory is a satellite launched on STS-93 by NASA on July 23, 1999. It was named in honor of Indian-American physicist Subrahmanyan Chandrasekhar who is known for determining the maximum mass for white dwarfs. "Chandra" also means "moon" or "luminous" in Sanskrit.Chandra...
  
  
• Image showing location relative to other Abell clusters