M4 · globular cluster
Messier 4
Messier 4 or M4 is a globular cluster in the constellation of Scorpius.
RA16h 23m 35sDec−26° 31' 32"
Identity & coordinates
Identification
- Primary designation
- M4
- All designations
- M4 · NGC 6121
- Object type
- Globular Cluster
- Constellation
- Scorpius
- Best viewing
- Summer
Coordinates & physical
- Right ascension (J2000)
- 16h 23m 35s
- Declination (J2000)
- −26° 31' 32"
- Apparent magnitude (V)
- —
- Distance
- —
Visibility tonight
The science
Messier 4 or M4 is a globular cluster in the constellation of Scorpius. It was discovered by Philippe Loys de Chéseaux in 1745 and catalogued by Charles Messier in 1764. It was the first globular cluster in which individual stars were resolved.
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