NGC 4489
From Wikipedia, the free encyclopedia
Galaxy in the constellation Coma Berenices
| NGC 4489 | |
|---|---|
| The elliptical galaxy NGC 4489. | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices |
| Right ascension | 12h 30m 52.2s[1] |
| Declination | 16° 45′ 32″[1] |
| Redshift | 0.003206/961 km/s[1] |
| Distance | 57 Mly |
| Group or cluster | Virgo Cluster |
| Apparent magnitude (V) | 12.84 [1] |
| Characteristics | |
| Type | E [1] |
| Size | ~26,000 ly |
| Apparent size (V) | 1.7 x 1.5[1] |
| Other designations | |
| CGCG 99-73, MCG 3-32-54, PGC 41365, UGC 7655, VCC 1321[1] | |
NGC 4489 is a dwarf elliptical galaxy [2] located about 60 million light-years away[3] in the constellation of Coma Berenices.[4] It was discovered by astronomer William Herschel on March 21, 1784.[5] NGC 4489 is a member of the Virgo Cluster.[6]
See also
[edit ]References
[edit ]- ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 4489. Retrieved 2017年08月11日.
- ^ Mei, S.; Silva, D. R.; Quinn, P. J. (30 October 2000). "Anomalous surface brightness fluctuations in NGC 4489⋆" (PDF). Astronomy & Astrophysics. 366: 54–61. doi:10.1051/0004-6361:20000080 . S2CID 17390200.
- ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017年08月11日.
- ^ Rojas, Sebastián García. "Galaxy NGC 4489 - Galaxy in Coma Berenices Constellation · Deep Sky Objects Browser". DSO Browser. Retrieved 2017年08月11日.
- ^ "New General Catalog Objects: NGC 4450 - 4499". cseligman.com. Retrieved 2017年08月01日.
- ^ "Detailed Object Classifications". ned.ipac.caltech.edu. Retrieved 2017年08月11日.
External links
[edit ]- Media related to NGC 4489 at Wikimedia Commons
- NGC 4489 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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