Astronomy:NGC 4984

From HandWiki
NGC 4984
legacy surveys image of NGC 4984
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension 13h 08m 57.2s[1]
Declination−15° 30′ 59″[1]
Redshift1279 ± 6 km/s[1]
Apparent magnitude (V)12.3[1]
Characteristics
Type(R)SAB(rs)0+[1]
Apparent size (V)2.8 × 2.2[1]
Other designations
PGC 45585[1]

NGC 4984 is an intermediate lenticular galaxy exhibiting a double ring structure in the constellation Virgo. It is a member of the NGC 4856 Group of galaxies,[2][3] which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo cluster.[4][5] In December 2011, supernova 2011iy was discovered in it.[6]

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 "NASA/IPAC Extragalactic Database". Results for NGC 4984. http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+4984&img_stamp=yes&extend=no. 
  2. Fouque, P.; Gourgoulhon, E.; Chamaraux, P.; Paturel, G. (May 1992). "Groups of galaxies within 80 Mpc. II. The catalogue of groups and group members." (in en). Astronomy and Astrophysics Supplement Series 93: 211–233. ISSN 0365-0138. https://ui.adsabs.harvard.edu/abs/1992A&AS...93..211F. 
  3. Giuricin, Giuliano; Marinoni, Christian; Ceriani, Lorenzo; Pisani, Armando (November 2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups" (in en). The Astrophysical Journal 543 (1): 178–194. doi:10.1086/317070. ISSN 0004-637X. https://ui.adsabs.harvard.edu/abs/2000ApJ...543..178G/abstract. 
  4. Tully, R. Brent (1988). Nearby galaxies catalog (1. publ ed.). Cambridge: Cambridge University Press. ISBN 978-0-521-35299-4. 
  5. "The Virgo II Groups". http://www.atlasoftheuniverse.com/galgrps/virii.html. 
  6. "Special Notice #263: SUPERNOVA 2011iy IN NGC 4984 = PSN J13085839-1531041 | aavso". http://www.aavso.org/aavso-special-notice-263. 

Coordinates: Sky map 13h 08m 57.23s, −15° 30′ 58.7″