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 seasons, changes in the Moon’s path, sundials, the entire celestial sphere of stars, and the motion of the planets. No 3-D glasses required!
Science-Math, Astronomy-Space-Science, Astronomy,