NGC 3245

NGC 3245
Hubble Space Telescope image of NGC 3245
Observation data (J2000 epoch)
ConstellationLeo Minor
Right ascension10h 27m 18s
Declination+28° 30′ 26″
Redshift0.004423
Heliocentric radial velocity1,326±5 km/s
Apparent magnitude (V)10.7
Apparent magnitude (B)11.6
Characteristics
TypeSA(r)0^0^
Apparent size (V)3.2′ × 1.8′
Other designations
NGC 3245,MCG+05-25-013, LEDA 30744

NGC 3245 is a lenticular galaxy in the constellation Leo Minor. It was discovered by German-British astronomer William Herschel on April 11, 1785. The galaxy has an apparent visual magnitude of 10.7 and spans an angular size of 3.2′ × 1.8′. It is located at a distance of 68 million light-years (20.9 Mpc). The morphological classification of NGC 3245 is SA(r)0^0^, which is consistent with a lenticular galaxy (SA0) possessing a ring-like structure (r).

There is a circumnuclear dust with a radius of 1.1″, which corresponds to a radius of 360 ly (110 pc). The rotational motion of this disk is consistent with a supermassive black hole at the core with a mass of (2.1±0.5)×108 M☉, or 210 million times the mass of the Sun.

This 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.

See also

References

  1. 1 2 3 4 5 Finlay, Warren H. (2014). Concise Catalogue of Deep-Sky Objects. The Patrick Moore Practical Astronomy Series (2nd ed.). Springer Cham. p. 229. doi:10.1007/978-3-319-03170-5. ISBN 978-3-319-03169-9.
  2. 1 2 3 4 "NGC 3245". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 19 June 2019.
  3. 1 2 3 4 "NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 19 June 2019.
  4. ↑ Seligman, Courtney. "New General Catalog Objects: NGC 3200 - 3249". New General Catalog Objects: NGC 3200 - 3249. Retrieved 19 June 2019.
  5. 1 2 Barth, Aaron J.; et al. (July 2001). "Evidence for a Supermassive Black Hole in the S0 Galaxy NGC 3245". The Astrophysical Journal. 555 (2): 685–708. arXiv:astro-ph/0012213. Bibcode:2001ApJ...555..685B. doi:10.1086/321523.
  6. ↑ "The Leo III Groups". Atlas of the Universe. Retrieved 2010-11-27.{{cite web}}: CS1 maint: deprecated archival service (link)