NGC 6231 is a young star cluster with an estimated age of 3.2 million years. It includes three Wolf-RayetStars: HD 151932, HD 152270, and HD 152408.
distance: 5900 light years
total size: about 15x15 arc-min
R = 6x300s
G = 6x300s
B = 6x300s
80cm f/7 Astrooptik Keller corrected cassegrain, FLI Proline 16803, Astrodon LRGB Filters, Prompt 7 CTIO/UNC Chile
Processing: Volker Wendel
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