What is that cloudy band of stars up in the sky? Clarify the relationship of the Earth and our galaxy with this unique Milky Way model. Show your students the structure of the galaxy, its dimensions, and the Sun's position. Illustrate why the night sky appears as it does. Locate gaseous spiral arms, our Sun and Solar System, and other related celestial objects. This transparent model is a plastic, three-dimensional disk mounted on a sturdy base with easily-adjustable angles. An illustrated 10-page study guide is included. Diameter 15 3/4".