Friday, September 16, 2022

Collinder 399 Brocchi's Cluster (Coathanger)


Collinder 399 Bronchi’s cluster is a random grouping of stars that appear to form an asterism shaped like a coat hanger. This is two 240s guided subs taken with an Optolong L-Pro filter from the Darling Hill Observatory in Vesper, NY on September 15th, 2022. FOV is 2.91˚ x 2.5˚. An astro-modified Canon EOS6D camera at ISO1600, iOptron CEM40G mount, ZWO ASI120MM mini mono guide camera, William Optics 50mm guide scope, ASIAir Plus, William Optics FLT 91 + Flat 6AIII 0.8 reducer FL 432mm f/4.9.

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