Next Halley’s Comet visit will be 2061. If I’m alive I’ll be 87
Who else watched it in 1986?
I’m trying to make a list of historic events I’m very sure will happen in the future within my lifetime if I’m still alive, and this is literally the only thing I can think of.
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Nope! Almost from scratch... :) It was a refracting telescope. I had an old microscope... used its eye-piece, and a regular convex lens. Put that in a rolled up paper calendar with a smaller sliding pipe for focusing! It worked reasonably well :) ... No proper stand though.
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I once tried but couldn’t find an objective lens of meaningfully long focal length. How did you find one?
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