Copeland Septet
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A group of galaxies nicknamed the Copeland Septet, in the constellation of Leo.[1]
The Copeland Septet (also Copeland's Septet, Hickson Compact Group 57) is a group of galaxies in the constellation Leo that includes NGC 3748, NGC 3754, NGC 3750, NGC 3751, NGC 3745, NGC 3753 and NGC 3746.[2][3] The group was discovered by British astronomer Ralph Copeland in 1874. The location of Copeland's Septet is right ascension 11h 37m 50s / declination +21° 59′ (2000.0), about three degrees northwest of third magnitude star 93 Leonis.
See also
- Wild's Triplet
- Zwicky's Triplet
- Robert's Quartet
- Stephan's Quintet and NGC 7331 Group (also known as the Deer Lick Group located about half a degree northeast of Stephan's Quintet)
- Seyfert's Sextet
References
- ^ "Giant Map of the Sky Sets Stage for Ambitious DESI Survey". Retrieved 3 February 2021.
- ^ "NAME COPELAND SEPTET". Retrieved 12 October 2018.
- ^ Bakich, Michael E. (July 10, 2010). 1,001 Celestial Wonders to See Before You Die: The Best Sky Objects for Star Gazers. Springer Science & Business Media. p. 72. ISBN 9781441917775. Retrieved 12 October 2018.
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