Thread: Full moon
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Old 02-10-2009, 12:21 AM
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mithrandir (Andrew)
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Quote:
Originally Posted by telecasterguru View Post
Why does the full moon always occur on a Friday, Saturday, Sunday night?
days in a week ::= 7
days in Fri, Sat, Sun ::= 3

probability of a full moon on Fri, Sat, Sun ::= 42.8%

probability of a moon 87% or more on at least one Fri, Sat, Sun per month?

100%

Quote:
Surely it could wait til Wednesday.
It doesn't have to be full to stuff up your viewing. Yesterday was a washout, unless you wanted a wide angle of the moon and Jupiter.
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