stephanievenerande:Spinnin’ around with the finest dIsegno of J KeplerThis sketch from Astronomia No
stephanievenerande:Spinnin’ around with the finest dIsegno of J KeplerThis sketch from Astronomia Nova explicit the apparent retrograde motion of the planet Mars when it’s contemplated from Earth. Specifically, it reveals the path of Mars from the year 1580 (marked just to the right of center) to the year 1596 (at left, near the 10 o’clock position) according to Ptolemy’s model. -- source link