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| NGC 7002 | |
|---|---|
 NGC 7002 (top) and NGC 7004 (bottom) with legacy survey | |
| Observation data (J2000 epoch) | |
| Constellation | Indus |
| Right ascension | 21h 03m 44.8s[1] |
| Declination | −49° 01′ 47″[1] |
| Redshift | 0.024520[1] |
| Heliocentric radial velocity | 7351 km/s[1] |
| Distance | 319 Mly (97.9 Mpc)[1] |
| Apparent magnitude (V) | 13.46[1] |
| Absolute magnitude (B) | -23.35 ± 0.58 [1] |
| Characteristics | |
| Type | E1 pec[1] |
| Size | ~175,000 ly (53.66 kpc) (estimated) |
| Apparent size (V) | 1.5 × 1.2[1] |
| Other designations | |
| ESO 235-43, PGC 66009[1] | |
NGC 7002 is a large elliptical galaxy,[2] and a radio galaxy,[3] around 320 million light-years away from Earth in the constellation of Indus.[4][2] The galaxy was discovered by English astronomer John Herschel on September 30, 1834.[5] NGC 7002 is the brightest member of a group of galaxies[6] known as [T2015] nest 200093.[7] The group contains 12 member galaxies including NGC 7004, has a velocity dispersion of 440 km/s and an estimated mass of 1.28 × 1014 M☉.[6] NGC 7002 is also host to a supermassive black hole with an estimated mass of 2.7 × 109 M☉.[8]
See also
[edit]- 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
[edit]- ^ a b c d e f g h i j "NASA/IPAC Extragalactic Database". Results for NGC 7002. Retrieved 2017-04-15.
- ^ a b "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.
- ^ a b 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
[edit]
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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