NGC 289

NGC 289 is a spiral galaxy in the southern constellation of Sculptor, located at a distance of 76 megalight-years from the Milky Way.^[3] It was discovered on September 27, 1834, by John Herschel. The compiler of the New General Catalogue, John Louis Emil Dreyer, noted that NGC 289 was "pretty bright, large, extended, between 2 considerably bright stars".^[4] The plane of the galaxy is inclined by an angle of 45° to the line of sight from the Earth.^[5]

NGC 289
Hubble Space Telescope image of NGC 289
Observation data (J2000 epoch)
Constellation	Sculptor
Right ascension	00h 52m 42.365s[1]
Declination	−31° 12′ 20.99″[1]
Redshift	0.0054[2]
Heliocentric radial velocity	1,628 km/s[3]
Distance	76.1 Mly (23.33 Mpc)[3]
Apparent magnitude (V)	11.0[4]
Apparent magnitude (B)	11.4[2]
Characteristics
Type	SB(rs)bc[5]
Apparent size (V)	3.1' x 2.5'[4]
Other designations
MCG -05-03-010, IRAS 00502-3128,[2] PGC 3089, 2MASSX J00524236-3112209

This is a Type II Seyfert galaxy with an active galactic nucleus. A dust lane is seen crossing the nucleus, and there are indications of recent starburst activity nearby.^[6] NGC 289 is a giant, gas-rich, low surface brightness galaxy with a small bulge at the nucleus, a small central bar, and two inner spiral arms. These arms split into multiple parts as they extend into the outer disk. The galaxy has a dark matter halo that has an estimated 3.5 times the mass of the gaseous and stellar components. There is a dwarf elliptical companion to the north of the galaxy,^[7] designated Arp 1981,^[6] that may be having a perturbing influence.^[7]

Gallery

• 
  Spiral Galaxy NGC 289 taken at ChileScope Observatory (W76), near Ovalle, Chile. Image courtesy Adam Block.
• 
  Hubble Space Telescope image of NGC 289

References

1. 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. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN 0004-6256. S2CID 18913331.
2. "NGC 289". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2015-09-30.
3. Tully, R. Brent; et al. (2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 50. arXiv:1605.01765. Bibcode:2016AJ....152...50T. doi:10.3847/0004-6256/152/2/50. S2CID 250737862.
4. "New General Catalog Objects: NGC 250–299". Retrieved 2015-09-30.
5. Pence, W. D.; Blackman, C. P. (October 1984). "Gas dynamics in barred spiral galaxies – II. NGC 7496 and 289". Monthly Notices of the Royal Astronomical Society. 210 (3): 547–563. Bibcode:1984MNRAS.210..547P. doi:10.1093/mnras/210.3.547.
6. Smajić, Semir; et al. (May 2013). "The central kpc of edge-on AGN". ePrint. arXiv:1305.4938. Bibcode:2013arXiv1305.4938S.
7. Walsh, Wilfred; et al. (May 1997). "The Giant, Gas-Rich, Low-Surface-Brightness Galaxy NGC 289". Astronomical Journal. 113: 1591–1606. Bibcode:1997AJ....113.1591W. doi:10.1086/118377.

External links

• Media related to NGC 289 at Wikimedia Commons