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M39

M39 Open Cluster

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

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