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post #21 of Old 02-05-2010 Thread Starter
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Originally Posted by wind_magic View Post
AdamLein, are you referring to the celestial sphere ?
I haven't seen an answer to this one yet, so....

The sun's geographical position is the place on the Earth directly under the sun, so this is just the set of all possible places where the sun can ever be directly overhead. This is what the tropics are.

s/v Laelia - 1978 Pearson 365 ketch
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