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Thor's Helmet
Thor's Helmet
Credit: NASA, ESA, Hubble

Thor's Helmet - emission nebula

Thor's Helmet, also known as the Duck Nebula, is a emission nebula located in the constellation Canis Major.

Thor's Helmet is magnitude and is in size. For reference, the full moon is 30' (arc minutes) or 0.5° in size.

      1. Name:
      2. Thor's Helmet
      1. Alt Name:
      2. Duck Nebula
      1. Type:
      2. emission nebula
      1. NGC:
      2. NGC 2359

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