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AstroTech AT6RC Bahtinov mask
by Ramblin_Ray
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This is a Bahtinov mask designed for the Astro-Tech 6" f/9 Ritchey-Chrétien astrograph. The dimensions are based off of the original dust cap, and the slit design was generated from this site: http://astrojargon.net/MaskGen.aspx
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