NGC 3259

NGC 3259
NGC 3259 is a bright barred spiral galaxy located approximately 110 million light-years from Earth.
Observation data (J2000 epoch)
Constellation	Ursa Major
Right ascension	10h 32m 34.816s[1]
Declination	+65° 02′ 27.79″[1]
Heliocentric radial velocity	+1,677[2] km/s
Distance	89.7 Mly (27.5 Mpc)[2]
Characteristics
Type	SAB(rs)bc[3]
Mass	1.26 × 1010[2] M☉
Other designations
UGC 5717, PGC 31145

NGC 3259 is a barred spiral galaxy located approximately 90^[2] million light-years from Earth, in the Ursa Major constellation. It has the morphological classification SAB(rs)bc,^[3] which indicates that it is a spiral galaxy with a weak bar across the nucleus (SAB), an incomplete inner ring structure circling the bar (rs), and moderate to loosely wound spiral arms (bc).^[4] This galaxy is a known source of X-ray emission and it has an active galactic nucleus of the Seyfert 2 type.^[2]

1. ^ ^{a b} 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. ^ ^{a b c d e} Springob, Christopher M.; et al. (September 2005), "A Digital Archive of H I 21 Centimeter Line Spectra of Optically Targeted Galaxies", The Astrophysical Journal Supplement Series, 160 (1): 149–162, arXiv:astro-ph/0505025, Bibcode:2005ApJS..160..149S, doi:10.1086/431550, S2CID 14911447.
3. ^ ^{a b} Hughes, M. A.; et al. (August 2003), "An Atlas of Hubble Space Telescope Spectra and Images of Nearby Spiral Galaxies", The Astronomical Journal, 126 (2): 742–761, Bibcode:2003AJ....126..742H, doi:10.1086/376744.
4. ^ Buta, Ronald J.; et al. (2007), Atlas of Galaxies, Cambridge University Press, pp. 13–17, ISBN 978-0521820486.

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