meridian circle
Sign in to saveAstronomical instrument for timing of the passage of stars
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- FASTT Transit Circle.jpg
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- Meridian instruments
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nadir
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horizontal coordinate system
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star
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Hamburg
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photography
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mercury
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temperature
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International Standard Book Number
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steel
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angle
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telescope
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microscope
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atmosphere of Earth
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Ptolemy
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ancient history
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University of Cambridge
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Oakland
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latitude
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weight
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Göttingen
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