NGC 6453

NGC 6453 is a globular cluster approximately 37,000 light-years away from Earth in the constellation of Scorpius.[3][2]

NGC 6453
NGC 6453 (NASA/ESA HST)
Observation data (J2000 epoch)
ClassIV [1]
ConstellationScorpius
Right ascension17h 50m 51.71s [2]
Declination−34° 35′ 59.60″ [2]
Distance37.8 kly (11.6 kpc) [1][3]
Apparent magnitude (V)10.10 [1]
Apparent dimensions (V)21.5′[1]
Physical characteristics
Mass169,000 [3] M☉
Metallicity = –1.50 [3] dex
Other designationsESO 393-SC 036, GC 5878, h 3707[4]

The cluster is located approximately 1 kpc (~3,260 light-years) from the Galactic center,[5] which results in confounded view of the cluster from the Solar System due to many intervening clouds of cosmic dust.[6]

The cluster measures nearly 8' across, and its brightest stars are no brighter than 14th magnitude.[6]

Observational history

NGC 6453 was discovered by John Herschel on June 8, 1837,[7][1][6] while he was observing from the Cape of Good Hope in South Africa.[8] He included the cluster as "h 3708" in his 1864 Catalogue of Nebulae and Clusters of Stars, and Danish-Irish astronomer John Dreyer later added the cluster to his New General Catalogue as object number 6453.[6] Dreyer described the cluster as "considerably large, irregularly round, pretty much brighter (in the) middle, round".[6]

See also

References
  1. "SEDS". spider.seds.org. Retrieved December 5, 2017.
  2. "NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved December 5, 2017.
  3. Boyles, J.; et al. (November 2011), "Young Radio Pulsars in Galactic Globular Clusters", The Astrophysical Journal, 742 (1): 51, arXiv:1108.4402, Bibcode:2011ApJ...742...51B, doi:10.1088/0004-637X/742/1/51.
  4. "New General Catalog Objects: NGC 6450 - 6499". cseligman.com. Retrieved 2017-12-08.
  5. Ortolani, S.; Bica, E.; Barbuy, B. (1999), "Blue horizontal branch globular clusters towards the bulge: Terzan 9, NGC 6139 and NGC 6453", Astronomy and Astrophysics Supplement Series, 138 (2): 267–273, Bibcode:1999A&AS..138..267O, doi:10.1051/aas:1999275
  6. Harrington, Philip S. (2010). "Medium-scope challenges". Cosmic Challenge: The Ultimate Observing List for Amateurs. Cambridge University Press. p. 241.
  7. "Data for NGC 6453". www.astronomy-mall.com. Retrieved December 9, 2017.
  8. "Universe Today". www.universetoday.com. Retrieved December 5, 2017.

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