Tag: Astro Tech Telescopes

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The GSO 8-Inch Ritchey–Chrétien Telescope

I recently reviewed a Guan Sheng Optical (GSO) 8-inch classical Cassegrain telescope for Astronomy Technology Today. In this article, I review the GSO 8-inch GSO Ritchey–Chrétien.  The classical Cassegrain would be the better choice for visual use, while the Ritchey–Chrétien is the better instrument for astronomical imaging. American astronomer George […]