Astronomy:NGC 4305
From HandWiki
Short description: Dwarf spiral galaxy in the constellation Virgo
| NGC 4305 | |
|---|---|
 SDSS image of NGC 4305. | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 22m 03.6s[1] |
| Declination | 12° 44′ 27″[1] |
| Redshift | 0.006298[1] |
| Helio radial velocity | 1888 km/s[1] |
| Distance | 98 Mly (30 Mpc)[1] |
| Apparent magnitude (V) | 13.4[1] |
| Characteristics | |
| Type | SA(r)a[1] |
| Size | ~32,000 ly (9.7 kpc) (estimated)[1] |
| Apparent size (V) | 2.07 x 0.97[1] |
| Other designations | |
| UGC 07432, VCC 0522, PGC 040030, MCG +02-32-013[1] | |
NGC 4305 is a dwarf spiral galaxy[2] located about 100 million light-years away[3] in the constellation Virgo. The galaxy was discovered by astronomer John Herschel on May 2, 1829.[4] Although considered to be a member of the Virgo Cluster,[2][5] its high radial velocity and blue luminosity suggest it is in fact a background galaxy.[6] The galaxy has a nearby major companion; NGC 4306.[6]
NGC 4305 exhibits well-defined, smooth spiral arms which terminate well outside its central bulge.[7] This spiral structure appears to have been induced by a tidal interaction with NGC 4306.[8][9] Such a tidal interaction would also explain its deficiency in neutral hydrogen gas (HI).[6]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 "NASA/IPAC Extragalactic Database". Results for NGC 4305. http://nedwww.ipac.caltech.edu/.
- ↑ 2.0 2.1 Davidge, T. J. (2018-10-31). "The Stellar Contents of Intermediate Mass Disk Galaxies in the Virgo Cluster. I. GMOS Spectra" (in en). The Astronomical Journal 156 (5): 233. doi:10.3847/1538-3881/aae5fa. Bibcode: 2018AJ....156..233D.
- ↑ "Your NED Search Results". https://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC%204305&extend=no&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
- ↑ "New General Catalog Objects: NGC 4300 - 4349". https://cseligman.com/text/atlas/ngc43.htm#4305.
- ↑ Binggeli, B.; Sandage, A.; Tammann, G. A. (1985-09-01). "Studies of the Virgo Cluster. II - A catalog of 2096 galaxies in the Virgo Cluster area.". The Astronomical Journal 90: 1681–1759. doi:10.1086/113874. ISSN 0004-6256. Bibcode: 1985AJ.....90.1681B.
- ↑ 6.0 6.1 6.2 Sanchis, T.; Mamon, G. A.; Salvador-Sol´e, E.; Solanes, J. M. (2004-05-01). "The origin of H I-deficiency in galaxies on the outskirts of the Virgo cluster. II. Companions and uncertainties in distances and deficiencies". Astronomy and Astrophysics 418 (2): 393–411. doi:10.1051/0004-6361:20034158. ISSN 0004-6361. Bibcode: 2004A&A...418..393S.
- ↑ "NGC 4305 - SA(s)a". http://kudzu.astr.ua.edu/devatlas/NGC_4305______g___________.html.
- ↑ van den Bergh, Sidney; Pierce, Michael J.; Tully, R. Brent (1990-08-01). "Classification of galaxies on CCD frames". The Astrophysical Journal 359: 4–14. doi:10.1086/169027. ISSN 0004-637X. Bibcode: 1990ApJ...359....4V.
- ↑ Malin, D. (1994). "Interacting Galaxies in the Virgo Cluster". Astronomy from Wide-Field Imaging. 161. pp. 567–576. doi:10.1007/978-94-011-1146-1_119. ISBN 978-0-7923-2879-7. Bibcode: 1994IAUS..161..567M.
External links
- NGC 4305 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
 |  |
