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M40
M40 — Winnecke 4
Double Star
· Ursa MajorBeginner
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Observing: Tonight · 8:00 PM–5:00 AM
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Target information
- Object type
- Double Star
- Constellation
- Ursa Major
- Right ascension
- 12h 22m 13s
- Declination
- +58° 05′ 00″
- Magnitude
- 8.4
- Angular size
- 0.8′
- Surface brightness
- Not recorded
- Difficulty
- Beginner
- Best months
- Feb-Jun
- Catalog IDs
- M40
About this target
Optical double star cataloged by Messier.