M40 (NGC 7092) - Winnecke 4
Messier M40 (NGC 7092), also known as the Winnecke 4, is a double star located in the constellation Ursa Major, in the Orion Arm of the Milky Way Galaxy. in the Local Group of galaxies.
Messier M40 is best viewed during early spring, is magnitude 9.0*, and can be viewed with large binoculars. It is 0.8' 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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