Saturday, July 23, 2022

IC4756 and NGC6633 in Ophiuchus

 IC4756 and NGC6633 the Tweedeee and Tweedledum clusters in Ophiuchus. This is seventeen 180s guided subs taken from the Darling Hill Observatory in Vesper, NY with an Optolong L-Pro filter on July 21st, 2022. FOV is 4.38 x 2.93. 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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