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Messier Objects

Messier M91

M91 (NGC 4548) is a barred spiral galaxy located within the constellation Coma Berenices in the Virgo Cluster of galaxies.

M91 is best viewed during late spring, is magnitude 11.5*, and can be viewed with small telescope. It is 5.4 x 4.4' in size. For reference, the full moon is 30' (arc minutes) in size.

      1. Name:
      1. Type:
      2. barred spiral galaxy
      1. NGC:
      2. 4548
      1. Magnitude (m):
      2. 11.5
      1. Viewing:
      2. small telescope
      1. Size:
      2. 5.4 x 4.4'
      1. RA:
      2. 12h 35.5m
      1. Dec:
      2. 14 30'
      1. Season:
      2. late spring
      1. Galaxy group:
      2. Virgo Cluster

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



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