Re: Reason for Procession of the Equinox?

From: John Steinberg (seesig_at_bottom.invalid)
Date: 11/30/04 

Date: Mon, 29 Nov 2004 23:29:16 -0500

Richard DeLuca wrote:

> I'm not a complete stranger to celestial mechanics, being familiar and
> comfortable with such concepts as nutation and cyclical changes in the
> obliquity of the Ecliptic. However, I've never really understood the
> precise *cause* of the Earth's precession...

*The way I understand it, it's due to the equatorial bulge of the earth
and centrifugal force of the earth's rotation. The rotation creates an
oblate earth which coupled with the moon and Sun's gravitational pull,
makes the Earth precess.

> and why its period is so long.

~26,000 years? Isn't that the wait for a new A-P? 

-- 
-John Steinberg
email: not@thistime.invalid
*Subject to correction at any time.

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