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Astronomy
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Demonstrations 1  20 of 183
Copernicus's Chord Tables from De Revolutionibus Orbium Coelestium
New this month
Ptolemy's Table of Chords
Copernicus's Chord Tables
Solar Time Calculator
Solar Position Chart in Cartesian Coordinates
The Interplanetary Magnetic Field (Parker Spiral)
Solar Position Chart in Polar Coordinates
Saturn's Seasonal Sundial
Dante's Medieval Cosmology
Spherical Signature of Two Planets
Orbits around the Lagrange Point L4
Microlensing Light Curve for Stellar Objects
Trajectory of a Test Mass in a Roche Potential
3D Interactive Satellite Globe
Celestial Sphere Basics
Stellar Nucleosynthesis
The Earth as Seen from the Moon
Precession of the Earth's Axis
Tracking an Object in Space Using the Kalman Filter
Three World Systems for EarthSunMars Kinematics
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