Skrovlig Förresten Grader Celsius important factor when buildning a telescope svart Skallig Men
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When building a refracting telescope, does the diameter of the eyepiece matter? And why do we need to move the eyepiece (as in my textbook) if the image is always focused at
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What are some of the factors that Astronomers consider when deciding the location for a telescope? - Quora
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