also see a lunar eclipse.
Once in a Blue Moon
The modern, popular meaning of "blue moon" is a second full moon in a month. The moon cycle is about
29.5 days long, and some years have 13 full moons instead of 12.
An older, more technical definition of blue moon is the third full moon in a season that has four
full moons and can only occur in February, May, August, or November, about a month before an equinox
or solstice.
More detail at Sky and Telescope - What's a Blue Moon?
http://www.skyandtelescope.com/observing/objects/moon/3304131.html?page=1&c=y
Hear Blue Moon sung by Ella Fitzgerald -
http://www.youtube.com/watch?v=4218R-gBmts
"Living is a form of not being sure, not knowing what next or how. The moment you know how, you
begin to die a little. The artist never entirely knows. We guess. We may be wrong, but we take leap after leap in the
dark."
- Agnes DeMille
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