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Astronomy
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Demonstrations 81  100 of 169
How Rings Form around a Planet
Shadow Pole
Kepler's Third Law
Radial Velocity Curve Fitting
Rømer's Measurement of the Speed of Light
Chaotic Attractor for the Solar Cycle
Greatest Planetary Elongation
How Old Would You Be on Another Planet (or Pluto)?
Twilight Calendar
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
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