NGC 4656 and NGC 4657
| NGC 4656/7 | |
|---|---|
|
NGC 4656/7. Credit: Scott Anttila. | |
| Observation data (J2000 epoch) | |
| Constellation | Canes Venatici[1] |
| Right ascension | 12h 43m 57.7s[2] |
| Declination | +32° 10′ 05″[2] |
| Redshift | 646 km/s[2] |
| Apparent magnitude (V) | 11.0[2] |
| Characteristics | |
| Type | SB(s)m pec[2] |
| Apparent size (V) | 12′.9[2] |
| Notable features | similar to SMC |
| Other designations | |
| UGC 7907,[2] PGC 42863[2] | |
NGC 4656/57 is a highly warped barred spiral galaxy located in the constellation Canes Venatici and is sometimes informally called the Hockey Stick Galaxies or the Crowbar Galaxy. The galaxy is a member of the NGC 4631 Group. A Luminous Blue Variable in "super-outburst" was discovered in NGC 4656/57 on March 21, 2005.
Gallery
Detail of NGC 4656 imaged by the Hubble Space Telescope.
See also
References
- ↑ R. W. Sinnott, ed. (1988). The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer. Sky Publishing Corporation and Cambridge University Press. ISBN 0-933346-51-4.
- 1 2 3 4 5 6 7 8 "NASA/IPAC Extragalactic Database". Results for NGC 4656. Retrieved 2006-04-30.
- ↑ "The Hockey Stick Galaxy". www.spacetelescope.org. Retrieved 31 July 2017.
External links
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