Pair of colliding galaxies in the constellation Ursa Major
NGC 5256
NGC 5256 as seen through the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation
Ursa Major
Right ascension
13h 38m 17.5s[1]
Declination
+48° 16′ 37″[1]
Redshift
0.027863±0.000043[1]
Heliocentric radial velocity
8353±13 km/s[1]
Galactocentric velocity
8447±13 km/s[1]
Distance
420 Mly (129 Mpc)[2]
Characteristics
Type
SAB(nc)P[3]
Apparent size (V)
1.20′ × 1.1′[1]
Other designations
UGC 8632, MCG 8-25-31, MK 266, PGC 48192, KCPG 388A, IRAS13362+4831, ZWG 246.21 and 1ZW 67[1]
Preview warning: Page using Template:Infobox galaxy with unknown parameter "image_size"
NGC 5256 is an object that contains two disc galaxies, that are colliding into each other. It is located in the constellation Ursa Major, and was discovered by William Herschel on 12 May 1787. The two nuclei of the galaxies are separated by about 13,000 light-years.[4] The southwest and northeast nuclei have masses of 7×109M☉ and 10×109M☉, assuming they orbit around a common center of mass.[2] NGC 5256 is located at about 420 million light-years away from the Earth.[2]
NGC 5256 is also known as Markarian 266 and is one of the Markarian galaxies, included in the Markarian Survey due to its high amount of ultraviolet emission. However, it is also a luminous infrared galaxy (LIRG); most of its energy is emitted in the infrared range.[2]
^ abcdefg"Object No. 1 – NGC 5056". NASA/IPAC extragalactic database. NASA/IPAC. Retrieved 2 October 2015.
^ abcdMazzarella, J. M.; Iwasawa, K.; Vavilkin, T.; Armus, L.; Kim, D.-C.; Bothun, G.; Evans, A. S.; Spoon, H. W. W.; Haan, S.; Howell, J. H.; Lord, S.; Marshall, J. A.; Ishida, C. M.; Xu, C. K.; Petric, A.; Sanders, D. B.; Surace, J. A.; Appleton, P.; Chan, B. H. P.; Frayer, D. T.; Inami, H.; Khachikian, E. Ye.; Madore, B. F.; Privon, G. C.; Sturm, E.; U, Vivian; Veilleux, S. (2012). "Investigation of Dual Active Nuclei, Outflows, Shock-Heated Gas, and Young Star Clusters in Markarian 266". The Astronomical Journal. 144 (5): 125. arXiv:1208.3248. Bibcode:2012AJ....144..125M. doi:10.1088/0004-6256/144/5/125. S2CID 30624108.
^"Revised NGC Data for NGC 5056". Seds. Retrieved 2 October 2015.
NGC5256 is an object that contains two disc galaxies, that are colliding into each other. It is located in the constellation Ursa Major, and was discovered...
galaxy. NGC5256 - a similar interacting galactic pair "NASA/IPAC Extragalactic Database". Results for NGC 7592. Retrieved 2020-11-03. "Revised NGC Data...
aerospace engineering. She discovered several asteroids in 1988, including 5256 Farquhar, and in 1989, when she was a sophomore at Caltech, she gained time...
NGC 5364 is a grand design spiral galaxy located 54.5 million light years away in the constellation Virgo. It is inclined to the line of sight from the...
NGC 5247 is a face-on unbarred spiral galaxy located some 60 million light years away in the constellation Virgo. It is a member of the Virgo II Groups...
at an effective temperature of 4,416 K. The spiral galaxy in Ursa Major, NGC 3877 (= H I.201), type Sc, is best found from Chi Ursae Majoris, which is...