"The Astronomical Explanation for the Vernal Equinox and Why the Yellow Line in the Middle of the Road is So Much Fun on the First Day of Spring"

Scheduled air date: 2004 Mar 08-14


The Sun crosses the Celestial Equator at the Vernal (Spring) and Autumnal (Fall) Equinoxes.
The Sun is ascending ("springing") in March, and descending ("falling") in September.


The Sun rises exactly due East the morning of March 20th...


...and sets exactly due West that evening.

If you wish to view illustrations for other episodes, please see our Star Gazer Illustrated directory.


Illustrations on this page were created using TheSky Astronomy Software, an advanced desktop planetarium program designed for Windows.

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