Astronomy:NGC 6453
| NGC 6453 | |
|---|---|
 NGC 6453, imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Class | IV [1] |
| Constellation | Scorpius |
| Right ascension | 17h 50m 51.71s [2] |
| Declination | −34° 35′ 59.60″ [2] |
| Distance | 37.8 kly (11.6 kpc) [1][3] |
| Apparent magnitude (V) | 10.10 [1] |
| Apparent dimensions (V) | 21.5′[1] |
| Physical characteristics | |
| Mass | 169,000 [3] M☉ |
| Metallicity | [math]\displaystyle{ \begin{smallmatrix}\left[\ce{Fe}/\ce{H}\right]\end{smallmatrix} }[/math] = –1.50 [3] dex |
| Other designations | ESO 393-SC 036, GC 5878, h 3707[4] |
NGC 6453 is a globular cluster approximately 37,000 light-years away from Earth in the constellation of Scorpius.[3][2]
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
- Globular cluster
- List of NGC objects (6001–7000)
- Scorpius (constellation)
References
- ↑ 1.0 1.1 1.2 1.3 1.4 "SEDS". http://spider.seds.org/spider/MWGC/n6453.html.
- ↑ 2.0 2.1 2.2 "NASA/IPAC Extragalactic Database". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+6453.
- ↑ 3.0 3.1 3.2 3.3 Boyles, J. et al. (November 2011), "Young Radio Pulsars in Galactic Globular Clusters", The Astrophysical Journal 742 (1): 51, doi:10.1088/0004-637X/742/1/51, Bibcode: 2011ApJ...742...51B.
- ↑ "New General Catalog Objects: NGC 6450 - 6499" (in en-US). http://cseligman.com/text/atlas/ngc64a.htm#6453.
- ↑ 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, doi:10.1051/aas:1999275, Bibcode: 1999A&AS..138..267O
- ↑ 6.0 6.1 6.2 6.3 6.4 Harrington, Philip S. (2010). "Medium-scope challenges". Cosmic Challenge: The Ultimate Observing List for Amateurs. Cambridge University Press. pp. 241. ISBN 9781139493680. https://books.google.com/books?id=8mQmvT4wpWQC.
- ↑ "Data for NGC 6453". http://www.astronomy-mall.com/Adventures.In.Deep.Space/NGC%206000%20-%206999%20(11-30-17).htm.
- ↑ "Universe Today". 19 June 2009. https://www.universetoday.com/32942/weekend-skywatchers-forecast-june-19-21-2009/.
External links
- NGC 6453 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- SEDS
Coordinates: 
17h 50m 51.71s, -34° 35′ 59.60″
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