NGC 7004 explained

NGC 7004
Epoch:J2000
Type:(R')SAB0/a?(s)[1]
Dist Ly:101Mpc
Z:0.025284
H Radial V:7580 km/s
Appmag V:13.8
Absmag B:-21.87 ± 0.09
Size V:1.31× 0.44
Constellation Name:Indus
Names:ESO 235-46, FAIR 938, PGC 66019
Size:~42.78kpc (estimated)

NGC 7004 is a lenticular galaxy[1] and a type 2 Seyfert galaxy[2] around 330 million light-years away from Earth in the constellation Indus.[3] [1] NGC 7004 has an estimated diameter of 140,000 light-years.[1] NGC 7004 was discovered by astronomer John Herschel on October 2, 1834.[4] NGC 7004 is a member of a group of galaxies[5] known as [T2015] nest 200093.[6] 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☉.[7]

See also

Notes and References

  1. Web site: NED results for object NGC 7004. ned.ipac.caltech.edu. 2017-04-23.
  2. NGC 7004. 2017-06-22.
  3. Web site: Galaxy NGC 7004 Deep Sky Objects Browser. Rojas. Sebastián García. DSO Browser. en. 2017-04-23. 2017-05-24. https://web.archive.org/web/20170524172457/https://dso-browser.com/deep-sky/8191/ngc-7004/galaxy. dead.
  4. Web site: New General Catalog Objects: NGC 7000 - 7049. cseligman.com. en-US. 2017-04-15.
  5. Tully . R. Brent . 2015-05-01 . Galaxy Groups: A 2MASS Catalog . The Astronomical Journal . 149 . 5 . 171 . 1503.03134 . 2015AJ....149..171T . 10.1088/0004-6256/149/5/171 . 0004-6256.
  6. Web site: [T2015] nest 200093 ]. 2024-08-16 . simbad.cds.unistra.fr.
  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 . 2101.02716 . 2021ApJ...914..121A . 10.3847/1538-4357/abfcd3 . 0004-637X . free.

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