NGC 3254

NGC 3254
SDSS image of NGC 3254
Observation data (J2000 epoch)
ConstellationLeo Minor
Right ascension10h 29m 19.922s[1]
Declination+29° 29′ 29.18″[1]
Redshift0.004556[2]
Heliocentric radial velocity1363 ± 10 km/s[2]
Apparent magnitude (V)11.60[2]
Apparent magnitude (B)12.29[2]
Characteristics
TypeSA(s)bc[3]
Other designations
IRAS F10265+2944, UGC 5685, MCG +05-25-018, PGC 30895, CGCG 154-020[2]

NGC 3254 is a spiral galaxy in the constellation Leo Minor. It was discovered on March 13, 1785, by the astronomer William Herschel.[4] It is a member of the NGC 3254 Group of galaxies, which is a member of the Leo II Groups, a series of galaxies and galaxy clusters strung out from the right edge of the Virgo Supercluster.[5]

Two supernovae have been observed in NGC 3254:

  • SN 1941B (type unknown, mag. 15.1)[6][7] was discovered by Josef J. Johnson on 25 March 1941.[8] [Note: some sources incorrectly list the discovery date as 28 March 1941.]
  • SN 2019np (type Ia, mag. 13.0) was discovered by Kōichi Itagaki on 9 January 2019.[9] This supernova was the brightest observed in the year 2019.[10]

See also

References

  1. ^ a b Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN 0004-6256. S2CID 18913331.
  2. ^ a b c d e "NGC 3254". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-05-17.
  3. ^ "Results for object NGC 3254 (NGC 3254)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2021-05-17.
  4. ^ Seligman, Courtney. "New General Catalogue objects: NGC 3250 - 3299". cseligman.com. Retrieved 2021-05-17.
  5. ^ "The Leo III Groups". Atlas of the Universe. Archived from the original on July 22, 2012. Retrieved 2010-11-27.
  6. ^ "SN 1941B". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-05-17.
  7. ^ "SN 1941B". Transient Name Server. IAU. Retrieved 27 November 2024.
  8. ^ Elis, Stromgren (13 May 1941). "Circular No. 862". Central Bureau for Astronomical Telegrams. Observatory Copenhagen. Retrieved 27 November 2024.
  9. ^ "SN 2019np". Transient Name Server. IAU. Retrieved 27 November 2024.
  10. ^ Bishop, David. "Bright Supernovae - 2019". Rochester Astronomy. Retrieved 9 December 2024.
  11. ^ "A Galactic Powerhouse". Retrieved July 14, 2021.

Media related to NGC 3254 at Wikimedia Commons



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