HCG 87 | |
---|---|
Observation data (Epoch ) | |
Constellation(s) | Capricornus |
Right ascension | 20h 48m 11.9ss[1] |
Declination | −19° 50′ 35″[1] |
Number of galaxies | ~5 |
Redshift | 8874 km/s[1] |
Distance | 400 million |
HCG 87 is a compact group of galaxies listed in the Hickson Compact Group Catalogue. This group is about 400 million light-years away [2] in the constellation Capricornus. The group distinguishes itself as one of the most compact groups of galaxies, hosting two active galactic nuclei and a starburst among its three members, all of which show signs of interaction.[3] This interaction, which astronomers have called visually, and scientifically, intriguing[4] is being examined to understand the influence of active nuclei on star formation histories.
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