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During the eighteenth and nineteenth centuries, attempts to precisely measure the astronomical unit relied largely on rare:. Physics & Astronomy
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Physics & Astronomy
During the eighteenth and nineteenth centuries, attempts to precisely measure the astronomical unit relied largely on rare:
2019-11-18 19:45:26
Physics & Astronomy
transits of the inferior planets across the Sun
oppositions of Mars
passages of comets close to the Earth
total solar eclipses
maximum elongations of Venus
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