Double star · Ursa MajorM40
Messier 40
Above the horizon all nightHighest after dark 05:17 · northeast · 35°
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Where is Messier 40?
Times for LondonChange city
Look northeast, about 35° up at 05:17 in Ursa Major.
- Rises
- Always up
- Highest
- 12:27
- Sets
- Never
- Best after dark
- 05:17 · 35°
Can I see Messier 40 tonight?
From London tonight, Messier 40 is above the horizon all night. It’s highest just before dawn, around 05:17, in the northeast at 35°.
At magnitude 8.0 it is too faint for the eye; binoculars will show it.
This is position and timing only: clouds, haze and light pollution aren’t included.
What does Messier 40 look like?
Eyes
Not visibleToo faint to see by eye.
Binoculars
May show two stars if they are widely separated.
Telescope
Splits into separate stars.
About Messier 40
Messier 40 (M40) is a double star in Ursa Major, with a total brightness of magnitude 8.0.
Nearby in the sky
Sources: OpenNGC (CC BY-SA 4.0); star chart: Wikidata (CC0). Positions computed for your place and time with astronomy-engine. Data & Licences