From Wikipedia, the free encyclopedia
NGC 4630
SDSS image of NGC 4630.
Observation data ( J2000 epoch)
Constellation Virgo
Right ascension12h 42m 31.1s [1]
Declination03° 57′ 37″ [1]
Redshift0.002458/737 km/s [1]
Distance53,823,000 ly
Group or cluster Virgo II Groups
Apparent magnitude (V)13.15 [1]
Characteristics
TypeIB(s)m [1]
Size~29,292.76 ly (estimated)
Apparent size (V)1.8 x 1.3 [1]
Other designations
PGC 42688, UGC 7871, VCC 1923 [1]

NGC 4630 is an irregular galaxy [2] located about 54 million light-years away [3] in the constellation of Virgo. [4] NGC 4630 was discovered by astronomer William Herschel on February 2, 1786. [2] NGC 4630 is part of the Virgo II Groups [5] which form a southern extension of the Virgo Cluster. [6]

See also

References

  1. ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 4630. Retrieved 2017-09-10.
  2. ^ a b "New General Catalog Objects: NGC 4600 - 4649". cseligman.com. Retrieved 2017-09-03.
  3. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-09-12.
  4. ^ Rojas, Sebastián García. "Galaxy NGC 4630 - Galaxy in Virgo Constellation · Deep Sky Objects Browser". DSO Browser. Retrieved 2017-09-12.
  5. ^ Tully, R. B. (June 1982). "The Local Supercluster". The Astrophysical Journal. 257: 389–422. Bibcode: 1982ApJ...257..389T. doi: 10.1086/159999. ISSN  0004-637X.
  6. ^ "The Virgo II Groups". www.atlasoftheuniverse.com. Retrieved 2018-04-02.

External links