Planetary Orbit Spirographs Based on Kepler's Laws

Inspired by John Carlos Baez's post on the Pentagram of Venus, Red Blob Games created a set of planetary orbit spirographs. Using Kepler's Third Law to convert orbital periods to distances from the sun, the site generates heliocentric planetary orbit images resembling spirographs. Data includes Mercury, Venus, Earth, Mars, Ceres, Jupiter, Saturn, Uranus, and Neptune.