Abell 2152 is a bimodal
galaxy cluster and one of three clusters comprising the
Hercules Supercluster. It contains 3
BCGs; the S0 lenticular UGC 10204, the pair UGC 10187, and the SA0 unbarred lenticular CGCG 108-083.
In total there are 41 galaxies which are confirmed to be members of the cluster.
The cluster is classified as a
Bautz-Morgan type III and Rood-Sastry class F cluster, indicating morphological irregularity and perhaps dynamical youth.
It is receding from the
Milky Way galaxy with a velocity of 12385 km/s.
Abell 2152 is the nearest cluster in which significant
gravitational lensing
A gravitational lens is a distribution of matter (such as a galaxy cluster, cluster of galaxies) between a distant light source and an observer that is capable of bending the light from the source as the light travels toward the observer. This ...
of a background source has been observed. The arc-like background galaxy, known as J160529.52+162633.9, lies at a
redshift
In physics, a redshift is an increase in the wavelength, and corresponding decrease in the frequency and photon energy, of electromagnetic radiation (such as light). The opposite change, a decrease in wavelength and simultaneous increase in f ...
z=0.1423 and has been magnified by a factor ~1.9 due to the lensing effect.
References
Hercules (constellation)
2152
Abell richness class 1
Galaxy clusters
Hercules Superclusters
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