Omega Nebula - emission nebula
Omega Nebula, also known as the Swan Nebula and Horseshoe Nebula and Lobster Nebula, is a emission nebula located in the constellation Sagittarius.
Omega Nebula is magnitude 6 and is 11' in size. For reference, the full moon is 30' (arc minutes) or 0.5° in size.
- Name:
- Omega Nebula
- Alt Name:
- Swan Nebula
- Alt Name 2:
- Horseshoe Nebula
- Alt Name 3:
- Lobster Nebula
- Type:
- emission nebula
- Magnitude:
- 6
- Size:
- 11'
- Constellation:
- Sagittarius
- Messier #:
- M17
* One can see up to magnitude 7-8 objects with perfect eyes under ideal dark sky conditions.