Autumnal Equinox :: So Long, Summer!
FACT: Seasons change as we orbit the sun. Spring • Summer • Autumn • Winter Twice a year, around March 20 or 21 and Sept. 22 or 23, our sun shines directly over the equator. That event marks the beginning of spring or fall. What is the equator ? Public Domain photo e·qua·tor [əˈ kwā •dər] noun an imaginary line drawn around the earth equally distant from both poles, dividing the earth into northern and southern hemispheres and constituting the parallel of latitude 0°. In March when the sun shines directly over the equator , the event is called the spring or vernal equinox . In September when the sun shines directly over the equator, the event is called the fall or autumnal equinox . The Autumnal Equinox occurred in Los Angeles, California, U.S.A. on Wednesday, September 23, 2015. at 1:22 A.M. Things to look for in fall: 1. Deciduous ( di•si•jo͞o•əs) trees will change color and drop all their leaves. Evergreen trees will not. Evergreen trees will stay for ...