M40 (Double star)

R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.

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From Fairfield , M40 is visible in the dawn sky, becoming accessible around 23:02 (EST), when it reaches an altitude of 21° above your north-eastern horizon. It will then reach an altitude of 70° before fading from view as dawn breaks at 05:54.

Name M40
Object type Double star
Other names
Winnecke 4
M40[1]
Position
Right ascension:12h22m [1]
Declination:+58°05' [1]
Constellation:Ursa Major
Magnitude:9.10 (V) [1]
Distance:92.0 parsec
299.9 lightyrs [1]
Derived quantities
Absolute mag (V):4.28

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