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Vopelius, the astronomer and mathematician, was born in Herwigsdorf, a town in the Krkonoše Mountains of the present-day Czech Republic, then part of Bohemia, in 1595. Not much information about his early life and education is known, but his later contributions to astronomy and mathematics, including his observations of sunspots and his work on optics and trigonometry, would establish him as a notable figure in scientific circles of his time.