Cluster of galaxies in Hercules
About this image
Abell 2151, the Hercules cluster,
is a small, irregular cluster, with a core membership of fewer than
100 galaxies, and no strongly dominant central galaxy. It is more than
360 million light-years away and probably contains 1000 billion solar
masses of sundry materials.
It contains the two peculiar systems Arp 71 (NGC6045) and Arp 272
KPNO 4-meter Mayall telescope, 1974.
Galaxy identifications and orientation.
More: galaxies page.
Minimum credit line: NOAO/AURA/NSF
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