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|Observation data (Epoch )|
|Right ascension||20h 48m 11.9ss|
|Declination||−19° 50′ 35″|
|See also: Galaxy groups, Galaxy clusters, List of galaxy clusters|
|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|
- Astronomy Picture of the Day
- Close-ups of HCG 87
- Galactic Clusters
- Studies of Hickson Compact Groups
- "NASA/IPAC Extragalactic Database". Results for HCG 87. Retrieved 2006-10-19.
- This redshift corresponds to a distance of 120Mpc or 400 million light years (using H0 = 75km/s/Mpc and q0 = 0.1). At the distance of the group, this corresponds to a group diameter of 52kpc, i.e., the group is approximately 170,000 light years across.
- "NASA/IPAC Extragalactic Database". Results for various galaxies. Retrieved 2006-10-19.
|This galaxy-related article is a stub. You can help Wikipedia by expanding it.|