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Notes to self - astronomical equations
by Simon at 15:16 04/10/05 (Blogs::Simon)
As a handy reference for myself, some equations and other stuff related to astronomy.
Angle either side of due east of solstice sunrise (D) at latitude (L) on planet of axial inclination (i)

sin(D) = sin(i)/cos(L)

Ref: http://www.exo.net/~pauld/activities/astronomy/stonehenge.htm

Java Applets: http://www.jgiesen.de/sunmoonpolar/

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