Wednesday, March 20, 2013

Welcome Spring!!!!

 

Why do the seasons change? The four seasons are determined by shifting sunlight (not heat!)—which is determined by how our planet orbits the Sun and the tilt of its axis. According to the Old Farmers Almanac:
On the first day of spring—the vernal equinox—day and night are each approximately 12 hours long (with the actual time of equal day and night, in the Northern Hemisphere, occurring a few days before the vernal equinox). The Sun crosses the celestial equator going northward; it rises exactly due east and sets exactly due west.




Spring begins with the vernal equinox at 7:02 A.M. (EDT) onMarch 20, 2013 in the Northern Hemisphere. Here’s more about the start of spring, signs of spring, and stunning spring photos!

The Vernal Equinox

Ah, spring! This season brings increasing daylight, warming temperatures, and the rebirth of flora and fauna.
The word equinox is derived from the Latin words meaning “equal night.” Days and nights are approximately equal everywhere and the Sun rises and sets due east and west.

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