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Geography 3 Astronomy 2 Description and travel 2 astronomers 2 astronomové 2 Astronomical observatories 1 Discovery and exploration 1 more ...
Geography 3 Astronomy 2 Description and travel 2 astronomers 2 astronomové 2 Astronomical observatories 1 Discovery and exploration 1 more ...
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Published 1813
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“...Astronomical observatories United States...”Deutschlandweit zugänglich
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Published 1858
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Published 1913
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