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An young woman amateur astronomer uses a 2,000mm catadioptic telescope to look at the stars on an evening in Orange County, CA Stock Photo - Alamy
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Amazon.com : Meade DS-2102MAK 102mm (4") Maksutov-Cassegrain on The DS-2000 Generation II Mount : Catadioptric Telescopes : Electronics
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Lot - Telescope: Meade Instruments Corporation DS-2000 Digital Series Reflecting & Refracting Telescope, central optical tube measures 18"...
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