M48 (NGC 2548) is a open cluster located within the constellation Hydra, in the Orion Arm of the Milky Way Galaxy. in the Local Group of galaxies.
M48 is best viewed during early spring, is magnitude 5.5*, and can be viewed with naked eye (just barely). It is 54' in size. For reference, the full moon is 30' (arc minutes) in size.
* The naked eye can see up to magnitude 8 objects under ideal dark sky conditions.
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