DANCING NEBULA

DANCING NEBULA
When the gods dance...

Thursday, December 22, 2011

EarthLOS

The line of sight from Earth to Mars pinpoints how Mars moves against the distant background of fixed stars. This motion is identical in the Ptolemaic and Copernican models (simplified here to circular orbits.) The toggle buttons show the line of sight, and the Ptolemaic Martian orbit.

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