M39 (NGC 7092)
Messier 39 (NGC 7092) is an open cluster located in the constellation Cygnus, in the Orion Arm of the Milky Way Galaxy in the Local Group of galaxies. M39 is 1,000 light years away from Earth.
M39 is best viewed during early spring, is magnitude 5.5, and can be viewed with naked eye (barely). M39 is 29' 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.