Places of Work and Study

- His intelligence as a child earned him a scholarship at the University of Tübingen

- He was a landscape mathematician for the Emperor Matthias

- He was a math teacher and Linz

- Adviser to General Wallenstein

Contributions to Astronomy

- Kepler's three laws of planetary motion

- First to suggest that the sun rotates around its axis

- Tried to use stellar parallax to measure the distance to stars; today this branch is called astrometry

- He coined the astronomical term "satellite"