M48 (NGC 2548)
Messier 48 (NGC 2548) is an open cluster located in the constellation Hydra, in the Orion Arm of the Milky Way Galaxy in the Local Group of galaxies. M48 is 2,500 light years away from Earth.
M48 is best viewed during early spring, is magnitude 5.8, and can be viewed with naked eye (barely). M48 is 30' in apparent 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.