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Star Cluster

IC 4665 :
open star cluster

IC 4665 is a open star cluster located in the constellation Ophiuchus . IC 4665 is magnitude 4.20*, and is 1° 10’ in size. For reference, the full moon is 30' (arc minutes) or 0.5° in size.

      1. Name:
      2. IC 4665
      1. Type:
      2. open cluster
      1. Magnitude (m):
      2. 4.20
      1. Size:
      2. 1° 10’
      1. Right Ascension:
      2. 17h 46.3m
      1. Declination:
      2. +05° 43'

    * One can see up to magnitude 7-8 objects with perfect eyes under ideal dark sky conditions.



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