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1612 – 1615
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Perovius, Szymon
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Studied astronomical observations, proper instrument use in Kalisz
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1633
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Perovius, Szymon
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In 1618, Perovius conducted astronomical observations in Kalisz; the results were published by Malapert in his “ Austriaca sidera ” ( Douai, 1633)
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Perovius, Szymon
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Perovius conducted astronomical observations and learned proper instrument use under the guidance of Malapert in Kalisz
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Perovius, Szymon
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Under Malapert 's guidance, Sylvius and Perovius conducted astronomical observations in Kalisz
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Perovius, Szymon
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Together with Perovius and Silvius, Malapert conducted astronomical observations in Kalisz
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1769
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Rostan, Alexandre Pancrace
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Rostan and Łuskina carried out astronomical observations together in 1763, 1764, and 1769
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