NGC 6539 :
globular star cluster
NGC 6539 is a globular star cluster located in the constellation Serpens . NGC 6539 is magnitude 9.33*, and is 7.9' in size. For reference, the full moon is 30' (arc minutes) or 0.5° in size.
- Name:
- NGC 6539
- Type:
- globular cluster
- Magnitude (m):
- 9.33
- Size:
- 7.9'
- Right Ascension:
- 18h 04m 49.68s
- Declination:
- -07° 35' 09.0"
- Constellation:
- Serpens
* One can see up to magnitude 7-8 objects with perfect eyes under ideal dark sky conditions.
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