Star Clusters M3 Globular Cluster Image February 29, 2020 admin Leave a comment M3 Globular on Feb 29, 2020. 15×60 sec, Gain 20, Offset 15, QHY183c at -20C, UHC-S filter, Televue TV-85 at F/5.6. Quickie M3 set done for killing a little time.
