NGC 6642
Coordinates: 
18h 31m 54.23s, −23° 28′ 34.1″
18h 31m 54.23s, −23° 28′ 34.1″| NGC 6642 | |
|---|---|
| Apparent dimensions (V) | 48" |
| Physical characteristics | |
| Mass | 1.09×105[3] M☉ |
| Metallicity | = –1.26[3] dex |
| Other designations | Cr 381, C 1828-235, ESO 522-32, GCl 97, Mel 203 |
![{\displaystyle {\begin{smallmatrix}\left[{\ce {Fe}}/{\ce {H}}\right]\end{smallmatrix}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/4c0821bd80891e071c08e7c7ee8e022baedf522c)
NGC 6642 is a
blue stragglers" (stars which seemingly lag behind in their rate of aging) have been spotted in this globular, and it is known to be lacking in low-mass stars.[4]
References
- ^ "SIMBAD query results". SIMBAD Astronomical Database. Retrieved 6 February 2012.
- ^ S2CID 239998638.
- ^ S2CID 118649860.
- S2CID 15354065.
External links
Media related to NGC 6642 at Wikimedia Commons
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