Motorized with lighted Sun

This is our finest motorized orrery. It demonstrates the motions of Sun, Moon, Earth and Venus using two control switches located in the metal base. The light in the sun follows the revolving earth to show solar, lunar and annular eclipses, phases of the moon, seasonal changes, night and day and twilight. Manual demonstrations are also possible, if desired. Height 16 inches, arm length 16 inches. Model weighs 18 pounds. Includes 175 page illustrated and indexed teacher’s manual, Elements of Astronomy and Physical Geography. This is a high quality heavy duty unit. (See also model EL400 for manual version).