Astronomy:NGC 3245
| NGC 3245 | |
|---|---|
 Hubble Space Telescope image of NGC 3245 | |
| Observation data (J2000 epoch) | |
| Constellation | Leo Minor[1] |
| Right ascension | 10h 27m 18s[2] |
| Declination | +28° 30′ 26″[2] |
| Redshift | 0.004423[3] |
| Helio radial velocity | 1,326±5 km/s[3] |
| Apparent magnitude (V) | 10.7[1] |
| Apparent magnitude (B) | 11.6[2] |
| Characteristics | |
| Type | SA(r)0^0^[3] |
| Apparent size (V) | 3.2′ × 1.8′[1] |
| Other designations | |
| NGC 3245,MCG+05-25-013, LEDA 30744[2] | |
NGC 3245 is a lenticular galaxy in the constellation Leo Minor.[1] It was discovered by German-British astronomer William Herschel on April 11, 1785.[4] The galaxy has an apparent visual magnitude of 10.7 and spans an angular size of 3.2′ × 1.8′.[1] It is located at a distance of 68 million light-years (20.9 Mpc).[5] 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).[3]
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☉,[5] 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.[6]
See also
References
- ↑ 1.0 1.1 1.2 1.3 1.4 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.
- ↑ 2.0 2.1 2.2 2.3 "NGC 3245". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+3245.
- ↑ 3.0 3.1 3.2 3.3 "NASA/IPAC Extragalactic Database". http://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Obj_id&objid=56668&objname=8&img_stamp=YES&hconst=73.0&omegam=0.27&omegav=0.73&corr_z=1#BasicData_0.
- ↑ Seligman, Courtney. "New General Catalog Objects: NGC 3200 - 3249". https://cseligman.com/text/atlas/ngc32.htm#3245.
- ↑ 5.0 5.1 Barth, Aaron J. (July 2001). "Evidence for a Supermassive Black Hole in the S0 Galaxy NGC 3245". The Astrophysical Journal 555 (2): 685–708. doi:10.1086/321523. Bibcode: 2001ApJ...555..685B.
- ↑ "The Leo III Groups". Atlas of the Universe. http://www.atlasoftheuniverse.com/galgrps/leoii.html.
External links
- NGC 3245 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Template:NGC objects:3001-4000
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