Astronomy:NGC 7002
From HandWiki
| 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] |
| Helio 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
- 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
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 "NASA/IPAC Extragalactic Database". Results for NGC 7002. http://nedwww.ipac.caltech.edu/.
- ↑ 2.0 2.1 "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=Ngc+7002&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&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.
- ↑ 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. doi:10.1093/mnras/269.4.928. ISSN 0035-8711. Bibcode: 1994MNRAS.269..928S.
- ↑ Rojas, Sebastián García. "Galaxy NGC 7002 Deep Sky Objects Browser" (in en). https://dso-browser.com/deep-sky/8189/ngc-7002/galaxy.
- ↑ "New General Catalog Objects: NGC 7000 – 7049" (in en-US). http://cseligman.com/text/atlas/ngc70.htm.
- ↑ 6.0 6.1 Tully, R. Brent (2015-05-01). "Galaxy Groups: A 2MASS Catalog". The Astronomical Journal 149 (5): 171. doi:10.1088/0004-6256/149/5/171. ISSN 0004-6256. Bibcode: 2015AJ....149..171T. https://ui.adsabs.harvard.edu/abs/2015AJ....149..171T.
- ↑ "[T2015 nest 200093"]. https://simbad.cds.unistra.fr/simbad/sim-id?Ident=@11275076&Name=%5BT2015%5D%20nest%20200093&submit=submit.
- ↑ Arzoumanian, Zaven; Baker, Paul T.; Brazier, Adam; Brook, Paul R.; Burke-Spolaor, Sarah; Becsy, Bence; Charisi, Maria; Chatterjee, Shami et al. (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. doi:10.3847/1538-4357/abfcd3. ISSN 0004-637X. Bibcode: 2021ApJ...914..121A.
External links
- NGC 7002 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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