Cr 399 (Collinder 399) Vul - asterism
Date: 27.9.2026
Equipment: ZWO Seestar S30 Pro
Exposure: 36x10sec
Location: Havlíčkův Brod
Processing: StackingWizard, AstroWizard, Photoshop
Description: Cr 399 (also known as Brocchi's Cluster or Coathanger) is an asterism in the constellation Vulpecula.
In the upper-left part of the image is an open star cluster NGC 6802.