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Astronomy

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    $\begingroup$ Hi ! The forums on cloudynights.com are a good place for this type of info. And other stargazer forums, of course ... good luck ! $\endgroup$
    – user31179
    Commented Dec 24, 2019 at 19:27
  • 2
    $\begingroup$ Errr ... Jupiter's size is 30 - 50 arcseconds, ISS around 50 ... yes, tracking and focussing is the problem for a newcomer. There are only seconds. $\endgroup$
    – user31179
    Commented Dec 24, 2019 at 19:56
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    $\begingroup$ If I may suggest, Jupiter and its moons are a better target than the ISS. A decent scope and good weather would show the terminator lines when it is around "half Jupiter". $\endgroup$
    – user31179
    Commented Dec 24, 2019 at 20:00
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    $\begingroup$ @ebv Since Jupiter is ~5x as far away from the Sun as we are, its phase is never much smaller than 99%. $\endgroup$
    – Mike G
    Commented Dec 25, 2019 at 0:16
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    $\begingroup$ I made some edits to your question to better fit the Stack Exchange format. I predict that if the flat-Earther does buy the telescope and do the experiment and post footage, they will use it to prove that the Earth is flat and the ISS is a hoax, and you'll be forever tied to it. I recommend that you walk away from flat-Earthers, rather than enable them, but it's your call. $\endgroup$
    – uhoh
    Commented Dec 26, 2019 at 2:08