NGC 5256

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NGC 5256
An ongoing cosmic collision.jpg
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 velocity8447±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]

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 7×109 M☉ and 10×109 M☉, 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]

Contents

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]

See also

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<span class="mw-page-title-main">NGC 708</span> Galaxy in the constellation Andromeda

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<span class="mw-page-title-main">NGC 7469</span> Galaxy located in the constellation Pegasus

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<span class="mw-page-title-main">NGC 877</span> Galaxy located in the constellation Aries

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<span class="mw-page-title-main">NGC 1241</span> Galaxy in the constellation Eridanus

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<span class="mw-page-title-main">NGC 1142</span> Interacting and distorted spiral galaxy in the constellation Cetus

NGC 1142 is a distorted spiral galaxy in the constellation of Cetus. It is located about 370 million light years away from Earth, which means, given its apparent dimensions, that NGC 1142 is approximately 170,000 light years across. It is a type 2 Seyfert galaxy. It interacts with the elliptical galaxy NGC 1141.

<span class="mw-page-title-main">NGC 7592</span> Interacting galaxy system in the constellation Aquarius

NGC 7592 is an interacting galaxy system located 300 million light years away in the constellation Aquarius. It was discovered by William Herschel on September 20, 1784. The total infrared luminosity is 1011.33 L☉, and thus it is categorised as a luminous infrared galaxy. One of the galaxies hosts a type 2 Seyfert nucleus.

<span class="mw-page-title-main">Markarian 590</span> Galaxy in the constellation of Cetus

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<span class="mw-page-title-main">Markarian 273</span> Galaxy in the constellation of Ursa Major

Markarian 273 is a galaxy merger located in the constellation Ursa Major. It is located at a distance of about 500 million light years from Earth, which, given its apparent dimensions, means that Markarian 273 is about 130,000 light years across. It is an ultraluminous infrared galaxy and a Seyfert galaxy.

<span class="mw-page-title-main">UGC 5101</span> Galaxy in the constellation of Ursa Major

UGC 5101 is a galaxy merger located in the constellation Ursa Major. It is located at a distance of about 530 million light years from Earth. It is an ultraluminous infrared galaxy. The total infrared luminosity of the galaxy is estimated to be 1011.95 L☉ and the galaxy has a total star formation rate of 105 M☉ per year.

References

  1. 1 2 3 4 5 6 7 "Object No. 1 – NGC 5056". NASA/IPAC extragalactic database. NASA/IPAC. Retrieved 2 October 2015.
  2. 1 2 3 4 Mazzarella, 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.
  3. ↑ "Revised NGC Data for NGC 5056". Seds. Retrieved 2 October 2015.
  4. ↑ "NGC 5256; Seyfert 2 + LINER". NASA/IPAC extragalactic database. Retrieved 2 October 2015.


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