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Caldwell 55
Caldwell 55 Saturn Nebula
Credit: NASA, ESA

C55 - Saturn Nebula

Caldwell 55 (NGC 7009) also known as the Saturn Nebula is a planetary nebula located within the constellation Aquarius.

C55 is best viewed during Fall, is magnitude 8*, and can be viewed with binoculars. It is 2.5 x 1' in size. For reference, the full moon is 30' (arc minutes) in size.

      1. Name:
      2. Saturn Nebula
      1. Type:
      2. planetary nebula
      1. NGC:
      2. 7009
      1. Magnitude:
      2. 8
      1. Viewing:
      2. binoculars
      1. Size:
      2. 2.5 x 1'
      1. RA:
      2. 21 04.2
      1. Dec:
      2. -11 22'
      1. Season:
      2. Fall


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