NGC 3319 explained

Epoch:	J2000
Constellation Name:	Ursa Major
Ra:	^[1]
H Radial V:	725 ± 5 km/s
Z:	0.002420
Type:	SB(rs)cd^[2]
Appmag V:	11.07
Appmag B:	11.48
Size V:	6.2 × 3.4
Names:	^[3]

NGC 3319 is a barred spiral galaxy in the constellation Ursa Major. It was discovered by William Herschel on Feb 3, 1788.^[4] It is rich in gas and lacks a galactic bulge.

NGC 3319 is relatively isolated. It is in a small group of galaxies including NGC 3104, NGC 3184, and NGC 3198. The nearest galaxy to it is probably NGC 3198, 4.2 million light-years (1.3 megaparsecs) away.

NGC 3319 is a Seyfert galaxy, with an active galactic nucleus (AGN) that was identified in 2018.^[5] NGC 3319 is a candidate for hosting an intermediate-mass black hole. The probability of having the black hole having a mass less than has been placed at 84%.^[6]

Notes and References

1. 10.1086/498708 . Skrutskie . Michael F. . Cutri . Roc M. . Stiening . Rae . Weinberg . Martin D. . Schneider . Stephen E. . Carpenter . John M. . Beichman . Charles A. . Capps . Richard W. . Chester . Thomas . Elias . Jonathan H. . Huchra . John P. . Liebert . James W. . Lonsdale . Carol J. . Monet . David G. . Price . Stephan . Seitzer . Patrick . Jarrett . Thomas H. . Kirkpatrick . J. Davy . Gizis . John E. . Howard . Elizabeth V. . Evans . Tracey E. . Fowler . John W. . Fullmer . Linda . Hurt . Robert L. . Light . Robert M. . Kopan . Eugene L. . Marsh . Kenneth A. . McCallon . Howard L. . Tam . Robert . Van Dyk . Schuyler D. . Wheelock . Sherry L. . The Two Micron All Sky Survey (2MASS) . The Astronomical Journal . 1 February 2006 . 131 . 2 . 1163–1183 . 2006AJ....131.1163S . 18913331 . 0004-6256 . free .
2. The GALEX Ultraviolet Atlas of Nearby Galaxies. Gil de Paz. Armando. Boissier. Samuel. Madore. Barry F.. Seibert. Mark. Joe. Young H.. Boselli. Alessandro. Wyder. Ted K.. Thilker. David. Bianchi. Luciana. 1. The Astrophysical Journal Supplement Series. 173. 2. 185–255. December 2007. 10.1086/516636. 2007ApJS..173..185G. astro-ph/0606440. 119085482.
3. NGC 3319. 2021-02-21.
4. Web site: Seligman . Courtney . New General Catalog Objects: NGC 3300 - 3349 . cseligman.com . 3 April 2019.
5. 10.3847/1538-4357/aaeb90. Discovery of an Active Intermediate-mass Black Hole Candidate in the Barred Bulgeless Galaxy NGC 3319. 2018. Jiang. Ning. Wang. Tinggui. Zhou. Hongyan. Shu. Xinwen. Yang. Chenwei. Dou. Liming. Sun. Luming. Dong. Xiaobo. Wang. Shaoshao. Yang. Huan. The Astrophysical Journal. 869. 1. 49. 1810.10283. 2018ApJ...869...49J. 119048841 . free .
6. 10.1017/pasa.2021.23. Refining the mass estimate for the intermediate-mass black hole candidate in NGC 3319. 2021. Davis. Benjamin L.. Graham. Alister W.. Publications of the Astronomical Society of Australia. 38. 2105.04717. 2021PASA...38...30D. 234357763.