• NGC 6405, the Butterfly Cluster in Scorpius (M6)
  • M6
  • NGC 6405, (Messier 6), the Butterfly Cluster is an open cluster of stars in Scorpius.
  • FOV is approximately 54' × 36'; the angular size of M6 is about 25′.
  • Ten 300 second guided subs (50 minutes), Orion Sirius EQ-G mount,
  • taken at Darling Hill Observatory in Vesper, NY on 3 August 2021.
  • ZWO ASI120MM mini mono guide camera, ZWO 30mm guide scope,
  • ZWO ASI071MC Pro Cooled (0°C) Color CMOS with gain 180,
  • Orion 127mm Mak-Cass (1540mm, f12.1).