September 21, 2013
The equinox brings autumn on September 22, 2013 at 4:44 P.M EDT.
Accessed from website this date: http://www.almanac.com/content/first-day-fall-autumnal-equinox
Question: Why
aren't there exactly 12 hours of daylight and 12 hours of darkness on the fall
equinox?
Answer: On
the equinoxes, the very center of the Sun sets just 12 hours after it rises.
But the day begins when the upper edge of the Sun reaches the horizon (which
happens a bit before the center rises), and it doesn't end until the entire Sun
has set. Not only that, but the Sun is actually visible when it is below the
horizon, as Earth's atmosphere refracts the Sun's rays and bends them in an arc
over the horizon.
Song birds have long departed, the croak of the crickets are
prominent on the evening air tonight. Some trees are paling out and beginning
to turn. The cooler early mornings are already welcomed. The flooding rain of
last week has been replaced with reserved— more fall like weather… Dry, warm
days, cooler night times and a peacefulness that is better felt when
temperatures have moderated such as NOW!
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