Idyll #334 - The Fall Equinox
Yep, it's today. I always thought it was the 21st - did something change? In the language of science, an equinox is either of two points on the celestial sphere where the ecliptic and the celestial equator intersect. For the rest of us, it's one of two times a year when the sun crosses the equator, and the day and night are of approximately equal length. Today this occured at 5.51 AM EDT.