Key facts
- Constellation
- Ursa Major
- Right ascension
- 13 38 17.5
- Declination
- +48 ° 16 ′ 37 ″
- Redshift
- 0.027 863 ± 0.000 043
- Heliocentric radial velocity
- 8353 ± 13 km/s
- Galactocentric velocity
- 8447 ± 13 km/s
- Distance
- 420 Mly (129 Mpc )
- Type
- SAB(nc)P
- Apparent size v
- 1.20 ′ × 1.1 ′
via Wikipedia infobox
Wikidata facts
- Instance of
- spiral galaxy
- Constellation
- Ursa Major
- Distance from Earth
- 125.2
- Image
- Hubble Interacting Galaxy NGC 5256 (2008-04-24).jpg
Show 10 more facts
- Commons category
- NGC 5256
- galaxy morphological type
- Sa
- catalog code
- RX J1338.3+4816
- discoverer or inventor
- William Herschel
- time of discovery or invention
- 1787-05-12
- redshift
- 0.000043
- apparent magnitude
- 14.1
- right ascension
- 204.57420
- declination
- 48.27810
- epoch
- J2000.0
via Wikidata · CC0
~1 min read
Encyclopedic overview
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. The southwest and northeast nuclei have masses of 7×10 M☉ and 10×10 M☉, assuming they orbit around a common center of mass. NGC 5256 is located at about 420 million light-years away from the Earth.
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.
Excerpted from Wikipedia’s “Q1118133” article, available under the CC BY-SA 4.0 licence.
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