A unique 12” outer globe and a 3.3” inner world globe together create your own planetarium to study the stars. Easy to demonstrate the earth’s apparent relationship to the stars, planets, and galaxies. A perfect medium to define star activities to the students. The sun may be set by adjusting the sun knob located near the north pole. Globe can be set to reflect constellation position according to time and place to show the actual positions of the stars. Milky Way is depicted in white, and stars are depicted in yellow. The outer surface can be marked and cleaned. Easily washable. These Celestial Star Globes are made of superior-quality polymers. Includes extensive teaching aids – 19-page activity book and 8-page study guide.