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Seasons & the Celestial Sphere: Learn seasons, sundials, and get a 3-D view of the sky (Volume 3)
Seasons the Celestial Sphere Learn seasons sundials and get a 3D view of the sky - Volume 3 Author:Tom VanDamme, David Harriman In Books 1 and 2 of our series, "Sun, Moon & Planets", and "The Stars" we looked at the Sun, Moon phases, and planetary and star motion, focusing mainly on the movement in the east-west direction. It?s now time to look at the whole sky. "Seasons & the Celestial Sphere" will show us the sky in three dimensions, enabling us to understand the seaso... more »ns, changes in the Moon?s path, sundials, the entire celestial sphere of stars, and the motion of the planets. No 3-D glasses required!« less