Orbiter Sun-Earth-Moon Model – Hand-Operated Gear-Driven Planetarium for Day/Night, Seasons, Moon Phases & Eclipses

The Orbiter is a gear-driven working model of the sun, earth and moon used to demonstrate their motions and relationships. It helps explain day and night, the seasons, moon phases, sunrise in the east, the midnight sun and eclipses. The arm, earth and moon are turned manually around the sun, and the earth's tilt stays fixed as it travels. Key Features Working model of the sun, earth and moon Gear-driven, manually operated arm Earth's axial tilt held in a fixed position Demonstrates day and night, seasons, moon phases and eclipses Suggested study projects and experiments included Specifications Type Sun-earth-moon orbiter (tellurion) Operation Manual, gear-driven Earth tilt Fixed Dimensions 643 x 267 x 267 mm SKU 71EA101 What's IncludedOrbiter model (1) Ideal ForElementary through high school earth science and astronomy lessons. Frequently Asked QuestionsIs it motorized?No. The listing says the arm, earth and moon rotate manually around the sun.How does it show the seasons?The earth keeps a fixed tilt as it circles the sun, so students can see how each hemisphere leans toward or away from the sun over a year. Show more