Key facts
- Right ascension
- 05 35 09.6
- Declination
- −04 ° 25 ′ 30 ″
- Distance
- 1,300 (400 )
- Other designations
- OCL 525, Collinder 73
- Constellation
- Orion
via Wikipedia infobox
Wikidata facts
- Instance of
- open cluster
- Part of
- Milky Way
- Constellation
- Orion
- Distance from Earth
- 400
- Image
- M42 HaRGB Composite Feb 2012 P.jpg
Show 11 more facts
- catalog code
- [KPS2012] MWSC 0579
- right ascension component of proper motion
- -0.58
- Commons category
- NGC 1981
- discoverer or inventor
- John Frederick William Herschel
- time of discovery or invention
- 1827-01-04
- apparent magnitude
- 4.2
- radial velocity
- 27.9
- right ascension
- 83.7875
- declination
- -4.4317
- epoch
- J2000.0
- declination component of proper motion
- 0.80
Sources (1)
via Wikidata · CC0
~1 min read
Encyclopedic overview
NGC 1981 (also known as OCL 525) is an open cluster which is located in the constellation Orion. It was discovered by John Herschel on 4 January 1827. Its apparent magnitude is 4.2 and its size is 28.00 arc minutes. It lies to the north of the Orion Nebula, separated from it by the Sh2-279 region containing NGC 1973, 1975, and 1977.
Some say it looks like an alligator or crocodile, with its eastern star as the snout, its western star as its tail and the two groups of three stars in the middle of it as its two set of legs.
Excerpted from Wikipedia’s “NGC 1981” article, available under the CC BY-SA 4.0 licence.