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Messier Objects

Messier M17 - Omega- Swan- Horseshoe Nebula

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M17, also known as the Omega- Swan- Horseshoe Nebula, is located in the constellation Sagittarius, and is best viewed during Late Summer. The naked eye can see magnitude 6 objects (up to magnitude 8 under ideal dark sky conditions). For reference, the full moon is 30' (arc minutes) in size, or 1/2°.

      1. Name:
      2. Omega- Swan- Horseshoe Nebula
      1. Type:
      2. Diffuse Nebula
      1. NGC:
      2. 6618
      1. Magnitude:
      2. 7
      1. Size:
      2. 11'
      1. RA:
      2. 18h 20.8m
      1. Dec:
      2. -16 11'
      1. Season:
      2. Late Summer

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