Messier M40 - Winnecke 4

M40 (NGC 7092), also known as Winnecke 4, is a double star located within the constellation Ursa Major, in the Orion Arm of the Milky Way Galaxy. in the Local Group of galaxies.

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.

1. Name:
2. Winnecke 4

1. Type:
2. double star

1. Constellation:
2. Ursa Major

1. NGC:
2. 7092

1. Magnitude (m):
2. 9.0

1. Viewing:
2. large binoculars

1. Size:
2. 0.8'

1. RA:
2. 12h 20.0m

1. Dec:
2. 58 22'

1. Season:
2. early spring

1. Milky Way location:
2. Orion Arm

1. Galaxy group:
2. Local Group

1. Messier Marathon #:
2. 39

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

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