NGC 7002 | |
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NGC 7002 (top) and NGC 7004 (bottom) with legacy survey | |
Observation data (J2000 epoch) | |
Constellation | Indus |
Right ascension | 21 03 44.8 |
Declination | −49° 01′ 47″ |
Redshift | 0.024520 |
Heliocentric radial velocity | 7351 km/s |
Distance | 319 Mly (97.9 Mpc) |
Apparent magnitude (V) | 13.46 |
Absolute magnitude (B) | -23.35 ± 0.58 |
Characteristics | |
Type | E1 pec |
Size | ~175,000 ly (53.66 kpc) (estimated) |
Apparent size (V) | 1.5 × 1.2 |
Other designations | |
ESO 235-43, PGC 66009 |
NGC 7002 is a large elliptical galaxy, and a radio galaxy, around 320 million light-years away from Earth in the constellation of Indus. The galaxy was discovered by English astronomer John Herschel on September 30, 1834. NGC 7002 is the brightest member of a group of galaxies known as nest 200093. The group contains 12 member galaxies including NGC 7004, has a velocity dispersion of 440 km/s and an estimated mass of 1.28 × 10 M☉. NGC 7002 is also host to a supermassive black hole with an estimated mass of 2.7 × 10 M☉.
See also
- IC 1101, A massive elliptical galaxy which is also one of the largest known galaxies.
- M87, A large and famous large elliptical galaxy about 50 mly in the constellation Virgo.
- List of NGC objects (7001–7840)
References
- ^ "NASA/IPAC Extragalactic Database". Results for NGC 7002. Retrieved 2017-04-15.
- ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-04-16.
- Slee, O. B.; Sadler, E. M.; Reynolds, J. E.; Ekers, R. D. (1994-08-01). "Parsec-scale radio cores in early-type galaxies". Monthly Notices of the Royal Astronomical Society. 269 (4): 928–946. Bibcode:1994MNRAS.269..928S. doi:10.1093/mnras/269.4.928. ISSN 0035-8711.
- Rojas, Sebastián García. "Galaxy NGC 7002 Deep Sky Objects Browser". DSO Browser. Archived from the original on 2017-05-24. Retrieved 2017-04-15.
- "New General Catalog Objects: NGC 7000 – 7049". cseligman.com. Retrieved 2017-04-15.
- ^ Tully, R. Brent (2015-05-01). "Galaxy Groups: A 2MASS Catalog". The Astronomical Journal. 149 (5): 171. arXiv:1503.03134. Bibcode:2015AJ....149..171T. doi:10.1088/0004-6256/149/5/171. ISSN 0004-6256.
- "[T2015] nest 200093". simbad.cds.unistra.fr. Retrieved 2024-08-16.
- Arzoumanian, Zaven; Baker, Paul T.; Brazier, Adam; Brook, Paul R.; Burke-Spolaor, Sarah; Becsy, Bence; Charisi, Maria; Chatterjee, Shami; Cordes, James M.; Cornish, Neil J.; Crawford, Fronefield; Cromartie, H. Thankful; Decesar, Megan E.; Demorest, Paul B.; Dolch, Timothy (2021-06-01). "The NANOGrav 11 yr Data Set: Limits on Supermassive Black Hole Binaries in Galaxies within 500 Mpc". The Astrophysical Journal. 914 (2): 121. arXiv:2101.02716. Bibcode:2021ApJ...914..121A. doi:10.3847/1538-4357/abfcd3. ISSN 0004-637X.
External links
- Media related to NGC 7002 at Wikimedia Commons
- NGC 7002 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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