Astronomy Friday – Two Globular Clusters by eeggert · December 2, 2022 Messier 10 and 12 are two of the many nice globular clusters in the constellation Ophiuchus. Messier 10; 27×4 secs; Lodestar Pro Mono; Starblast 114mm Autotracker; Starlight Live Messier 12; 13×3.50 secs; Lodestar Pro Mono; Starblast 114mm Autotracker; Starlight Live Share