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Keenan's System

Keenan's System galaxy pair

Keenan's System, also known as the Arp 104, is located in the constellation Ursa Major , and is best seen in spring.

Keenan's System is magnitude 14/12.3, is 17 million light-years away, and is in size. For reference, the full moon is 30' (arc minutes) or 0.5° in size.

      1. Name:
      2. Keenan's System
      1. Alt Name:
      2. Arp 104
      1. Type:
      2. galaxy pair
      1. Magnitude (m):
      2. 14/12.3
      1. Distance (Mly):
      2. 17 Mly
      1. NGC:
      2. 5216/5218

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



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