NGC 7004

NGC 7004
NGC 7004 (bottom) and NGC 7002 (top) with legacy survey
Observation data (J2000 epoch)
ConstellationIndus
Right ascension21h 04m 02.2s
Declination−49° 06′ 51″
Redshift0.025284
Heliocentric radial velocity7580 km/s
Distance330 Mly (101 Mpc)
Apparent magnitude (V)13.8
Absolute magnitude (B)-21.87 ± 0.09
Characteristics
Type(R')SAB0/a?(s)
Size~139,500 ly (42.78 kpc) (estimated)
Apparent size (V)1.31× 0.44
Other designations
ESO 235-46, FAIR 938, PGC 66019

NGC 7004 is a lenticular galaxy and a type 2 Seyfert galaxy around 330 million light-years away from Earth in the constellation Indus. NGC 7004 has an estimated diameter of 140,000 light-years. NGC 7004 was discovered by astronomer John Herschel on October 2, 1834. NGC 7004 is a member of a group of galaxies known as [T2015] nest 200093. The group contains 12 member galaxies including NGC 7002, has a velocity dispersion of 440 km/s and an estimated mass of 1.28 × 1014 M☉. NGC 7004 is also host to a supermassive black hole with an estimated mass of 8.1 × 108 M☉.

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 "NED results for object NGC 7004". ned.ipac.caltech.edu. Retrieved 2017-04-23.
  2. ↑ "NGC 7004". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-06-22.
  3. ↑ Rojas, Sebastián García. "Galaxy NGC 7004 Deep Sky Objects Browser". DSO Browser. Archived from the original on 2017-05-24. Retrieved 2017-04-23.
  4. ↑ "New General Catalog Objects: NGC 7000 - 7049". cseligman.com. Retrieved 2017-04-15.
  5. 1 2 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.
  6. ↑ "[T2015] nest 200093". simbad.cds.unistra.fr. Retrieved 2024-08-16.
  7. ↑ 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.