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主題: DIY 650mm f1.5 borisov 作者: peter 於 2019-09-13 09:16:55 網路看到65cm f1.5
大牛頓 https://twitter.com/esaoperations/status/1172519834774581249 (https://pbs.twimg.com/media/EEWgkbnXkAUjHgT.jpg) 主題: 回覆： 竟有650mm f1.5 作者: peter 於 2019-12-12 16:30:51 https://www.cloudynights.com/topic/677286-homemade-065m-f-15/
Gennady Borisov with the 0.65-meter telescope he built and used to discover the new comet. G. Borisov (https://s22380.pcdn.co/wp-content/uploads/Gennady-with-0.65-m-scope_S.jpg) https://www.space.com/interstellar-comet-borisov-discoverer-interview-gennady-borisov.html |