General Question

SuperMouse's avatar

Why isn't the first day of spring on the vernal equinox?

Asked by SuperMouse (30798points) March 17th, 2009

Today is the vernal equinox, here in The Cornfield the sun rises at 7:32 a.m. and sets at 7:32 p.m. I always thought of this as the beginning of spring. Turns out spring doesn’t start until Friday. Any ideas why that might be?

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4 Answers

sandystrachan's avatar

Historically spring starts on the day of the vernal equinox, which usually occurs on the night of 20/21 March
i take it for some reason you think the equinox starts early maybe you have been miss informed.

fireside's avatar

The Vernal Equinox is not actually when day and night are the same length, as the word “equinox” would suggest.

Instead, the Vernal Equinox is the day when the sun crosses over the celestial equator.

sandystrachan's avatar

all you have to do is read my response it explains it all

AstroChuck's avatar

March 20, 2009 is both the date of the vernal equinox as well as the first day of spring.

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