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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