M40 · double star
Winnecke 4
Winnecke 4 is an optical double star consisting of two unrelated stars in a northerly zone of the sky, Ursa Major.
RA12h 22m 16sDec+58° 05' 04"
Image: NOIRLab/ NSF /AURA. CC BY 4.0, via Wikimedia Commons.
Identity & coordinates
Identification
- Primary designation
- M40
- All designations
- M40 · Winnecke 4
- Object type
- Double Star
- Constellation
- Ursa Major
- Best viewing
- Spring
Coordinates & physical
- Right ascension (J2000)
- 12h 22m 16s
- Declination (J2000)
- +58° 05' 04"
- Apparent magnitude (V)
- —
- Distance
- —
Visibility tonight
The science
Winnecke 4 is an optical double star consisting of two unrelated stars in a northerly zone of the sky, Ursa Major.
Summary adapted from Wikipedia · CC-BY-SA-4.0
References
- SIMBAD Not resolved
- NED Fetched May 8, 2026 View in NED ↗
- Wikipedia Fetched May 8, 2026 Read full article ↗
1 merge conflict resolved
- coordinates: SIMBAD missing → NED used