
M50 · open cluster
Messier 50
Messier 50 or M 50, also known as NGC 2323 or the Heart-shaped Cluster, is an open cluster of stars in the constellation Monoceros.
RA07h 02m 40sDec−08° 21' 50"
Identity & coordinates
Identification
- Primary designation
- M50
- All designations
- M50 · NGC 2323
- Object type
- Open Cluster
- Constellation
- Monoceros
- Best viewing
- Winter
Coordinates & physical
- Right ascension (J2000)
- 07h 02m 40s
- Declination (J2000)
- −08° 21' 50"
- Apparent magnitude (V)
- —
- Distance
- —
Visibility tonight
The science
Messier 50 or M 50, also known as NGC 2323 or the Heart-shaped Cluster, is an open cluster of stars in the constellation Monoceros. It was recorded by G. D. Cassini before 1711 and independently discovered by Charles Messier in 1772 while observing Biela's Comet. It is sometimes described as a 'heart-shaped' figure or a blunt arrowhead.
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 ↗
Wikipedia title resolved via designation — fell back to an alternate catalog designation.
1 merge conflict resolved
- coordinates: SIMBAD missing → NED used



