NGC 1987

NGC 1987
	NGC 1987, imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Mensa
Right ascension	05h 27m 17.2s
Declination	−70° 44′ 15″
Apparent magnitude (V)	12.1
Physical characteristics
Other designations	ESO 56-SC131, GC 1190, h 2885
	See also: Open cluster, List of open clusters

Last updated March 20, 2021

NGC 1987 (also known as ESO 56-SC131) is an open cluster or a globular cluster located in the Mensa constellation and part of the Large Magellanic Cloud. It was discovered by John Herschel on November 3, 1834. Its apparent magnitude is 12.1, and its size is 1.7 arc minutes.^[1]^[2]^[4] It is thought to be around 600 million years old and has a significant number of red ageing stars.^[5]

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NGC 2002 is an open cluster located in the Dorado constellation and is part of the Large Magellanic Cloud. It was discovered by James Dunlop on September 24, 1826. Its apparent magnitude is 10.1, and its size is 2.0 arc minutes.

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NGC 1971 is an open cluster which is in the Dorado constellation and is part of the Large Magellanic Cloud. It was discovered by John Herschel on December 23, 1834. Its apparent size is 11.9 by 0.80 arc minutes.

NGC 1959 is an open cluster located in the Mensa constellation which is part of the Large Magellanic Cloud. It was discovered by John Herschel on December 23, 1834. Its apparent magnitude is 12.2, and its size is 0.50 arc minutes.

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NGC 1997 is an open cluster located in the Dorado constellation which is part of the Large Magellanic Cloud. It was discovered by John Herschel on November 30, 1834. Its apparent magnitude is 13.43 and its size is 1.80 arc minutes.

NGC 1994 is an open cluster in the Dorado constellation which is located in the Large Magellanic Cloud. It was discovered by John Herschel on 16 December 1835. It has an apparent magnitude is 9.8 and its size is 0.60 arc minutes.

NGC 1986 is an open cluster which is located in the Mensa constellation which is part of the Large Magellanic Cloud. It was discovered by James Dunlop on September 27, 1826. It has an apparent magnitude of 11.31 and its size is 2.80 by 2.40 arc minutes.

NGC 1983 is an open cluster associated with an emission nebula which is located in the Dorado constellation and part of the Large Magellanic Cloud. It was discovered by John Herschel on 11 November 1836. It has an apparent magnitude of 9.9 and its size is 1.0 arc minutes.

NGC 1984 is an open cluster associated with an emission nebula, it is located in the constellation Dorado in the Large Magellanic Cloud. It was discovered by John Herschel on 16 December 1835. The apparent magnitude is 9.9 and its size is 1.50 by 1.20 arc minutes.

References

1 2 3 4 "Object: NGC 1987 (*)". SEDS. Retrieved 28 October 2017.
1 2 "NGC 1987". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 28 October 2017.
↑ "NGC 1987". SEDS. Retrieved 28 October 2017.
↑ "NGC 1987 (in the Large Magellanic Cloud)". cseligman. Retrieved 28 October 2017.
↑ Zinnecker, H.; Ferraro, F.; Fusi Pecci, F.; Renzini, Alvio; Buonanno, R.; Corsi, C.E.; Turndrup, D.M. (1991-02-28). "Infrared Imaging of Intermediate Age LMC/SMC Clusters". In Haynes, Raymond; Milne, Douglas (eds.). The Magellanic Clouds: Proceedings of the 148th Symposium of the International Astronomical Union, held in Sydney, Australia, July 9–13, 1990. New York: Springer Science & Business Media. pp. 228–30. ISBN 9780792311102.

External links

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[NGC_1987-1] 1 2 3 4 "Object: NGC 1987 (*)". SEDS. Retrieved 28 October 2017.

[NGC_1987_-_appmagnitude-2] 1 2 "NGC 1987". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 28 October 2017.

[3] "NGC 1987". SEDS. Retrieved 28 October 2017.

[4] "NGC 1987 (in the Large Magellanic Cloud)". cseligman. Retrieved 28 October 2017.

[5] Zinnecker, H.; Ferraro, F.; Fusi Pecci, F.; Renzini, Alvio; Buonanno, R.; Corsi, C.E.; Turndrup, D.M. (1991-02-28). "Infrared Imaging of Intermediate Age LMC/SMC Clusters". In Haynes, Raymond; Milne, Douglas (eds.). The Magellanic Clouds: Proceedings of the 148th Symposium of the International Astronomical Union, held in Sydney, Australia, July 9–13, 1990. New York: Springer Science & Business Media. pp. 228–30. ISBN 9780792311102.

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