| NGC 3309 | |
|---|---|
 Hubble Space Telescope image of NGC 3309. | |
| Observation data (J2000 epoch) | |
| Constellation | Hydra |
| Right ascension | 10h 36m 35.7s[1] |
| Declination | −27° 31′ 06″[1] |
| Redshift | 0.013593[1] |
| Heliocentric radial velocity | 4075 km/s[1] |
| Distance | 197 Mly (60.3 Mpc)[1] |
| Group or cluster | Hydra Cluster |
| Apparent magnitude (V) | 12.60[1] |
| Characteristics | |
| Type | E3[1] |
| Size | ~146,400 ly (44.88 kpc) (estimated)[1] |
| Apparent size (V) | 1.9 x 1.6[1] |
| Notable features | Radio Jet |
| Other designations | |
| ESO 501-36, AM 1034-271, MCG -4-25-34, PGC 31466[1] | |
NGC 3309 is a giant elliptical galaxy[2] located about 200 million light-years away[3] in the constellation Hydra.[4] NGC 3309 was discovered by astronomer John Herschel on March 24, 1835.[5][6] The galaxy forms a pair with NGC 3311[7] which lies about 72,000 ly (22 kpc) away.[8] Both galaxies dominate the center[7] of the Hydra Cluster.[9]
- ^ a b c d e f g h i j "NASA/IPAC Extragalactic Database". Results for NGC 3309. Retrieved 2018-05-06.
- ^ Wehner, Elizabeth M. H.; Harris, William E.; Whitmore, Bradley C.; Rothberg, Barry; Woodley, Kristin A. (2008). "The Globular Cluster Systems around NGC 3311 and NGC 3309". The Astrophysical Journal. 681 (2): 1233. arXiv:0802.1723. Bibcode:2008ApJ...681.1233W. doi:10.1086/587433. ISSN 0004-637X. S2CID 119241756.
- ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2018-05-06.
- ^ "Revised NGC Data for NGC 3309". spider.seds.org. Retrieved 2018-05-06.
- ^ Gottlieb, Steve. "Astronomy-Mall: Adventures In Deep Space NGC objects 3001-3999". Astronomy-Mall. Retrieved 2018-04-27.
- ^ "New General Catalog Objects: NGC 3300 - 3349". cseligman.com. Retrieved 2018-05-04.
- ^ a b Kotanyi, C. (November 1990). "NGC 3309: an S-shaped radio galaxy in a nearby cluster" (PDF). Revista Mexicana de Astronomía y Astrofísica. 21: 173–176. Bibcode:1990RMxAA..21..173K.
- ^ Yamasaki, N. Y.; Ohashi, T.; Furusho, T. (2002). "Chandra Observation of the Central Galaxies in the A1060 Cluster of Galaxies". The Astrophysical Journal. 578 (2): 833–841. arXiv:astro-ph/0206472. Bibcode:2002ApJ...578..833Y. doi:10.1086/342652. ISSN 0004-637X. S2CID 15537091.
- ^ Richter, O.-G. (February 1989). "The Hydra I cluster of galaxies. V - A catalogue of galaxies in the cluster area" (PDF). Astronomy and Astrophysics Supplement Series. 77: 237–256. Bibcode:1989A&AS...77..237R.