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Messier Catalog M23

M23 (NGC 6494)

Messier M23 (NGC 6494) is a open cluster located in the constellation Sagittarius, in the Orion Arm of the Milky Way Galaxy. in the Local Group of galaxies.

Messier M23 is best viewed during late summer, is magnitude 6.0*, and can be viewed with naked eye (just barely). It is 27' in size. For reference, the full moon is 30' (arc minutes) in size.

      1. Name:
      1. Type:
      2. open cluster
      1. NGC:
      2. 6494
      1. Magnitude (m):
      2. 6.0
      1. Viewing:
      2. naked eye (just barely)
      1. Size:
      2. 27'
      1. RA:
      2. 17h 56.8m
      1. Dec:
      2. -19 1'
      1. Season:
      2. late summer
      1. Milky Way location:
      2. Orion Arm
      1. Galaxy group:
      2. Local Group

    * The naked eye can see up to magnitude 8 objects under ideal dark sky conditions.



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