M 7By astrored / November 6, 2023 M6 . . Index . . M8 Messier 7 M 7 (NGC 6475) Open Cluster in Scorpius. The Scorpion’s Tail, Ptolemy’s Cluster RA=17 53.9, Dec=-34 49. 4.1 mag, dist=0.8 kly. M7 page; DSSM page Hartmut Frommert ([email protected]) Christine Kronberg ([email protected]) Last Modification: 7 Apr 1998, 22:14 MET