Encourage childrens early interest in astronomy. Recreate the solar system in any room with this motorized model. Children can study the solar system or create their own planetarium. The model has a Sun and eight planets. Large constellations are marked. Requires 4 AA batteries (not included). A manual is included with interesting facts about the solar system. Describes the movement of the Earth and other planets relative to the Sun in the solar system. Describes the movement of the Moon relative to the Earth. Describes the day and night, by the rotation of the Earth. Age: 8 - 12 years.