M 4By astrored / November 6, 2023 M3 . . Index . . M5 Messier 4 M 4 (NGC 6121) Globular Cluster in Scorpius. RA=16 23.6, Dec=-26 32. 5.6 mag, dist=6.8 kly. M4 page; DSSM page Hartmut Frommert ([email protected]) Christine Kronberg ([email protected]) Last Modification: 7 Apr 1998, 22:14 MET