We are offering elementary planetarium model. Harsaw elementary planetarium is a hand-operated model that demonstrates the orbital relationships between the sun, earth and moon, over a year and shows solar, lunar and annular eclipses, moon phases and seasons. Sun is lit with beam pointed at earth to show moon shadow and twilight zones. Belt drive keeps the north pole pointed towards polaris.
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Ambala Cantt, Ambala, Haryana 
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