Quote:
Originally Posted by Nereid
Can the Moon ever spoil the fun of watching an "in" Earth-Venus conjunction? If so, has it done so since telescopes were invented? When will it next be a party-pooper?
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Venus transits of the sun take a quarter day or so, and are visible from almost anywhere on the Earth that is in sunlight. They occur in pairs, mostly now, a hundred years apart. A solar eclipse by the moon doesn't last as long as that--and the eclipse is not visible from everywhere, so it wouldn't obscure the transit for everyone.