Celestial Sphere Kit

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Develop sky navigation skills with this kit, which includes a model that displays apparent daily motions of the stars and sun in a variety of latitudes for any day of the year. Examine how the seasons are not created by the distance of the earth from the sun, and explain the cause of seasons on the earth.

Kit equips 10 students or student groups and consists of 20 hemispheres; 10 each of star charts, marking pens, earth space globes, pins, axis dowels, and plastic supports; and a set of instructions and activities.