HCG 87
Galaxy cluster in the constellation Capricornus
HCG 87 is a compact group of galaxies listed in the Hickson Compact Group Catalogue. This group is about 400 million light-years away 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. This interaction, which astronomers have called visually, and scientifically, intriguing is being examined to understand the influence of active nuclei on star formation histories.
01Members
| Name | Type | R.A. (J2000) | Dec. (J2000) | Redshift (km/s) | Apparent Magnitude |
|---|---|---|---|---|---|
| HCG 87a | S0 pec | 20h 48m 15.0s | −19° 50′ 58″ | 8443 ± 14 | 15.3 |
| HCG 87b | SA(r)0 pec | 20h 48m 10.9s | −19° 51′ 23″ | 8740 ± 20 | 15.4 |
| HCG 87c | Sb | 20h 48m 12.0s | −19° 49′ 56″ | 8914 ± 7 | 16.1 |
| HCG 87d | Sd | 20h 48m 12.8s | −19° 50′ 46″ | 10200 ± 160 | 17.8 |
Sources and credits
This article is adapted from the Wikipedia article “HCG 87”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- HCG 87.png by Judy Schmidt from USA, CC BY 2.0
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