NGC 6633 :
open star cluster
NGC 6633 is a open star cluster located in the constellation Ophiuchus . NGC 6633 is magnitude 4.60*, and is 20' in size. For reference, the full moon is 30' (arc minutes) or 0.5° in size.
- Name:
- NGC 6633
 
- Type:
- open cluster
 
- Magnitude (m):
- 4.60
 
- Size:
- 20'
 
- Right Ascension:
- 18h 27.7m
 
- Declination:
- +06° 34'
 
- Constellation:
- Ophiuchus
 
* One can see up to magnitude 7-8 objects with perfect eyes under ideal dark sky conditions.
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