NGC 6535
Distance | 22 kly (6.7 kpc)[2] | |
|---|---|---|
| Apparent magnitude (V) | 9.3 | |
| Physical characteristics | ||
| Metallicity | = -1.95±0.04[3] dex | |
| Other designations | C 1801-003, GCl 83, [KPS2012] MWSC 2795[1] | |
![{\displaystyle {\begin{smallmatrix}\left[{\ce {Fe}}/{\ce {H}}\right]\end{smallmatrix}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/4c0821bd80891e071c08e7c7ee8e022baedf522c)
NGC 6535 is a
light years from Earth in the equatorial constellation of Serpens, and is listed in the New General Catalogue. Its discovery is usually attributed to astronomer John Russell Hind in 1852,[4][5] however Wolfgang Steinicke has uncovered evidence that William Herschel's first discovery was actually NGC 6535, which he observed on 24 August 1780.[6]
The cluster is suspected to harbour an intermediate-mass black hole in its center[7] and, unusually for a low-mass globular cluster, has had multiple generations of stars.[3] Rather small and sparse for a globular cluster,[8] this cluster contains no known RR Lyrae variables, which is unusual for a globular cluster.[9]
References
- ^ a b c "NGC 6535". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 16 May 2017.
- ^ "SEDS". Retrieved 15 May 2017.
- ^ S2CID 119235401
- ^ Hille, Karl (24 February 2015). "Hubble Sees an Ancient Globular Cluster". NASA. Retrieved 10 March 2021.
- ^ "New General Catalog Objects: NGC 6500 - 6549". cseligman.com. Retrieved 10 March 2021.
- ^ "Photos". www.klima-luft.de. Retrieved 10 March 2021.
- S2CID 118936939.
- doi:10.1086/133392.
External links
Media related to NGC 6535 at Wikimedia Commons
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