NGC 6642 :
globular star cluster
NGC 6642 is a globular star cluster located in the constellation Sagittarius . NGC 6642 is magnitude 9.13*, and is 5.8' in size. For reference, the full moon is 30' (arc minutes) or 0.5° in size.
- Name:
- NGC 6642
- Type:
- globular cluster
- Magnitude (m):
- 9.13
- Size:
- 5.8'
- Right Ascension:
- 18h 31m 54.10s
- Declination:
- -23° 28' 32.8"
- Constellation:
- Sagittarius
* One can see up to magnitude 7-8 objects with perfect eyes under ideal dark sky conditions.
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