The top documents of torvald-koehl
Sternschnuppenregen am 2. Januar 1908
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Meteor
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Nordlicht
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ASTRONOMICAL OBSERVATIONS
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ASTRONOMICAL OBSERVATIONS
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ASTRONOMICAL OBSERVATIONS IN 1897
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ASTRONOMICAL OBSERVATIONS IN 1899
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ASTRONOMICAL OBSERVATIONS IN 1902
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ASTRONOMICAL OBSERVATIONS IN 1903
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ASTRONOMICAL OBSERVATIONS
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PATH OF A SHOOTING STAR
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ASTRONOMICAL OBSERVATIONS
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ASTRONOMICAL OBSERVATIONS
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FOUCAULT'S PENDULUM EXPERIMENT
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