Thread: Another Interstellar Visitor - Comet C/2019 Q4
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Old 13-09-2019, 03:39 PM
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Sunfish (Ray)
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Look at Grennady Borisov and the 0.65m scope he built. What sort of instrument is that, SCT, Maksutov?

https://www.skyandtelescope.com/astr...eaded-our-way/
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