M39 (Pyramid Cluster) is a large open cluster in the constellation Cygnus approximately 800ly distant. Visually it spans an angular diameter of 29 arcminutes – about the size of the full Moon.
Observation Date: 22-06-2022
Scope: Horizon 72ED 432mm
Camera: ASI533 MC Pro
Mount: iEXOS-100 PMC8
Control: ASIAir Pro
Filter: Nil.
Exposure: 36 x 60s Processed & Annotated: APP, Pixinsight