Go Astr☾nomy


Messier Objects
   < Back

Messier M18

M18 (NGC 6613) is a Open Cluster located in the constellation Sagittarius, is best viewed during Late Summer, and is magnitude 8. The naked eye can see magnitude 6 objects (magnitude 8 under ideal dark sky conditions). It is 9' in size. For reference, the full moon is 30' (arc minutes) in size, or 1/2°.

      1. Name:
      2. N/A
      1. Type:
      2. Open Cluster
      1. NGC:
      2. 6613
      1. Magnitude:
      2. 8
      1. Size:
      2. 9'
      1. RA:
      2. 18h 19.9m
      1. Dec:
      2. -17 8'
      1. Season:
      2. Late Summer

    Find your inner astronomer. Your complete guide to amateur astronomy.