NGC_1819

NGC 1819

NGC 1819

Lenticular galaxy in the Orion constellation

NGC 1819 is a lenticular galaxy in the constellation of Orion.[4] It was discovered on December 26, 1885, by American astronomer Lewis A. Swift.[7] This galaxy is located at a distance of 197.4 million light-years (60.53 Mpc) from the Milky Way,[3] and is receding with a heliocentric radial velocity of 4,483 km/s.[2]

Quick Facts Observation data, Constellation ...

The morphological classification of NGC 1819 is SB0 in the De Vaucouleurs system,[5] indicating this is a lenticular galaxy with a barred spiral organization. It is a gas-rich galaxy[8] with a circumnuclear ring structure that is undergoing intense star formation.[9]

Type Ia supernova[5] SN 2005el was discovered in NGC 1819 on September 19, 2005. It was positioned 39.0″ east and 22.6″ south of the nucleus.[10]

References

  1. [1]
    Skrutskie, Michael F.; et al. (February 1, 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. [2]
    Paturel, G.; et al. (2002). "Comparison LEDA/SIMBAD octobre 2002. Catalogue to be published in 2003". LEDA. Bibcode:2002LEDA.........0P.
  3. [3]
    Tully, R. Brent; et al. (August 2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 21. arXiv:1605.01765. Bibcode:2016AJ....152...50T. doi:10.3847/0004-6256/152/2/50. S2CID 250737862. 50.
  4. [4]
    Frommert, Hartmut. "NGC 1819". SEDS. Retrieved 2024-04-05.
  5. [5]
    Kang, Yijung; et al. (March 2016). "Early-type Host Galaxies of Type Ia Supernovae. I. Evidence for Downsizing". The Astrophysical Journal Supplement Series. 223 (1). id. 7. arXiv:1601.05424. Bibcode:2016ApJS..223....7K. doi:10.3847/0067-0049/223/1/7.
  6. [6]
    "NGC 1819". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-05-22.
  7. [7]
    Seligman, Courtney. "NGC Objects: NGC 1800 - 1849". Celestial Atlas. Retrieved 2024-04-05.
  8. [8]
    Pogge, Richard W.; Eskridge, Paul B. (October 1993). "Star Formation in the Disks of H I-Rich SO Galaxies". Astronomical Journal. 106: 1405. Bibcode:1993AJ....106.1405P. doi:10.1086/116735.
  9. [9]
    Contini, T.; et al. (1995). "Detection of circum-nuclear rings in barred spiral galaxies". Astrophysical Letters and Communications. 31: 223. Bibcode:1995ApL&C..31..223C.
  10. [10]
    Madison, D. R.; et al. (September 2005). Green, D. W. E. (ed.). "Supernova 2005el in NGC 1819". Central Bureau Electronic Telegrams. 233: 1. Bibcode:2005CBET..233....1M.
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