M3 Posted on June 8, 2024 By Cosmic Ken Deep Space Objects, Star Clusters Messier 3 (M3; also NGC 5272) is a globular cluster of stars in the northern constellation of Canes Venatici. I took this on 6/8/2024 about 12:30 am. This 20 1 min subs stacked in Sharpcap and processed in PixInsight.