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Fall Equinox Comes to Berkeley on Saturday

So long, summer. Saturday is the first day of fall.

Today is the last day of summer 2012, and fall is just hours away—that means another fall (or autumnal) equinox is coming.

But what is the autumnal equinox? 

Equinoxes fall on the halfway point between solstices and occur, according to the Washington Post, "when the sun crosses the equator and day and night are of roughly equal length, everywhere in the world."

The nearly equal 12 hours of light and darkness can be attributed to the Earth's lack of an axial tilt on the day of the equinox. In fact, the word equinox is derived from the Latin words aequus, meaning equal, and nox, meaning night.

In Berkeley, according to sunrisesunset.com, the sun will come up at 6:57 a.m. and set at 7:09 p.m on the autumnal equinox. As you notice, that is not actually a perfect 12 hours of light and darkness. As timeanddate.com reports, this is because of issues such as light refraction and other reasons.

See ya next year, summer. Hello fall, and happy autumnal equinox!

Here's the weekend forecast according to the National Weather Service:

  • Saturday: Early morning fog. Clouds through the morning, with mainly sunny skies in the afternoon. High near 75. Winds between 5 and 10 mph.
  • Saturday Night: Some patch fog. Low near 58. Winds between 5 and 10 mph.
  • Sunday: Early morning fog. Clouds through the morning, with mainly sunny skies in the afternoon. High near 73. Winds between 5 and 10 mph.
  • Sunday Night: Mostly cloudy, with a low around 58.

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