Messier 10 :
globular star cluster
Messier 10 is a globular star cluster located in the constellation Ophiuchus . Messier 10 is magnitude 6.60*, and is 20' in size. For reference, the full moon is 30' (arc minutes) or 0.5° in size.
- Name:
- Messier 10
- Type:
- globular cluster
- Magnitude (m):
- 6.60
- Size:
- 20'
- Right Ascension:
- 16h 57m 09.03s
- Declination:
- -04° 06' 00.6"
- Constellation:
- Ophiuchus
- Messier #:
- M10
* One can see up to magnitude 7-8 objects with perfect eyes under ideal dark sky conditions.
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