Astronomy:NGC 1989
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Short description: Galaxy in the constellation Columba
| NGC 1989 | |
|---|---|
 legacy surveys image of NGC 1989 | |
| Observation data (J2000 epoch) | |
| Constellation | Columba |
| Right ascension | 05h 34m 2342s[1] |
| Declination | −30° 48′ 03.55″[1] |
| Redshift | 0.035858[1] |
| Helio radial velocity | 10557[1] |
| Distance | 482 Million[2] |
| Apparent magnitude (V) | 12.9[2] |
| Apparent magnitude (B) | 14.13[1] |
| Characteristics | |
| Type | S0[1] |
| Size | 1.40 x 1.1[3] |
| Other designations | |
| ESO 423-21, MCG -5-14-4, AM 0532-304, PGC 17464[2] | |
NGC 1989 (also known as ESO 423-21) is a lenticular galaxy in the Columba constellation. It is about 482 million light-years away from the Milky Way. The galaxy was discovered by John Herschel on January 28, 1835.[4] Its apparent magnitude is 12.9[2] and its size is 1.40 by 1.1 arc minutes.[3]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "NGC 1989 -- Brightest galaxy in a Cluster (BCG)". SIMBAD. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC+1989.
- ↑ 2.0 2.1 2.2 2.3 "Galaxy NGC 1989". DSO. https://dso-browser.com/deep-sky/2914/ngc-1989/galaxy.
- ↑ 3.0 3.1 "Object: NGC 1989 (*)". SEDS. http://spider.seds.org/ngc/revngcic.cgi?NGC1989.
- ↑ "NGC 1989 (= PGC 17464)". cseligman. http://cseligman.com/text/atlas/ngc19a.htm#1989.
External links
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