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Astronomy
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Demonstrations 121  140 of 193
Eratosthenes's Measure of the Earth's Circumference
Motion of the Moon: Phases
Motion of the Moon: Eclipses
Orbital Speed and Period of a Satellite
Prototype of a Virtual 2D Orrery
Red Giant Stars and the Death of the Sun
Astronomical Data
Comet Moving about the Sun
Earth's Second Moon
Conic Section
A Simplified Model for the Big Bang
Restricted ThreeBody Problem
Parallax
Olbers's Paradox
Akaike Criterion in Orbit Determination
Advanced Celestial Sphere
3D Kerr Black Hole Orbits
Light Ray Passing through a Transparent Plate
GPS Simulator
Empty Focus Approximation to Kepler's Second Law
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