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barry barry
wrote...
Posts: 11630
10 years ago
During the eighteenth and nineteenth centuries, attempts to precisely measure the astronomical unit relied largely on rare:
A) total solar eclipses.
B) transits of the inferior planets across the Sun.
C) passages of comets close to the Earth.
D) maximum elongations of Venus.
E) oppositions of Mars.
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wrote...
10 years ago
Answer:  B
Would you know my name, if I saw you in heaven?

Eric Clapton
barry Author
wrote...
10 years ago
Thanks man, perfect Slight Smile
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