Tuesday, March 20, 2012

Robins Dance in the Spring!

Photo:  C.J. Prince
 
Article:  The Farmer's Almanac
http://www.almanac.com/content/first-day-seasons

www.almanac.com

First Day of Seasons: 2012 and 2013

When Does Spring, Summer, Fall, and Winter Begin?

See chart below to see when seasons begin for 2012 and 2013—namely, the spring or vernal equinox, summer solstice, fall or autumnal equinox, and winter solstice.
The four seasons are determined by changing sunlight (not heat!)—which is determined by how our planet orbits the Sun and the tilt of its axis.
  • 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. See our First Day of Spring page!

Seasons of 2012:
SPRING EQUINOX March 20, 1:14 A.M. EDT
SUMMER SOLSTICE June 20, 7:09 P.M. EDT
FALL EQUINOX September 22, 10:49 A.M. EDT
WINTER SOLSTICE December 21, 6:12 A.M. EST
Seasons of 2013:
SPRING EQUINOX March 20, 7:02 A.M. EDT
SUMMER SOLSTICE June 21, 1:04 A.M. EDT
FALL EQUINOX September 22, 4:44 P.M. EDT
WINTER SOLSTICE December 21, 12:11 P.M. EST
Credit: NASA Equinox solstice cycle

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