I am in need of the help of a big-brained list member, as I can't quite
figure this. I know of the ecliptic and the celestial equator and the
precession of their crossing and such, so I presume I have necessary
but insufficient background.
OK, earth's orbit, plan view, looking down at the north pole of the
earth, but of course off axis by 23.44 or .45 degrees. An ellipse with
the sun at one of the foci. When earth is farthest from the sun
(aphelion), the north pole is pointed toward the sun. But not
precisely. What is the azimuth of the axis when the earth is farthest
from the sun, calling the sun at 0 degrees?? In other words, how far
off is it from pointing directly at the sun? (So we need to choose an
epoch; let's say 2000.)
I just want to know in order to have a more complete picture in my head.
Thanks!
John B
PS: If it's something intuitively obvious to the most casual observer,
please be kind.
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