Where did Johannes Kepler study before becoming an astronomer?

Before becoming an astronomer, Johannes Kepler studied to be a theologian at the University of Tübingen in Germany.12

He attended the university's Lutheran Stift, or seminary, beginning in 1589, with the intention of becoming a minister. During his time there, his interest in astronomy was fostered by his mathematics professor, Michael Maestlin, who tutored him in the Copernican theory. Although Kepler initially planned for a career in theology, he eventually felt that his efforts in astronomy were a way to celebrate God, leading him to pursue the study of the stars as his primary vocation.213