| NGC 6642 | |
| Epoch: | J2000 |
| Class: | V? |
| Constellation: | Sagittarius |
| Ra: | [1] |
| Size V: | 48" |
| Metal Fe: | –1.26 |
| Names: | Cr 381, C 1828-235, ESO 522-32, GCl 97, Mel 203 |
NGC 6642 is a globular cluster located 26,700 light-years from Earth, in the constellation Sagittarius. Many "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.