Johann Kepler Small 257×320 Medium 514×640 Large 822×1024 Download Tiff Original 1927×2400 | (1.1 MB) Description A key figure in the scientific revoluion, a German astrologer, astronomer, and mathematician of famed brilliance. He is best known for his laws of planetary motion. Keywords astronomer, Johann Kepler, Johannes Kepler, Kepler Galleries Astronomers, Famous People: K Source: B. P. Holst The Teachers' and Pupils' Cyclopaedia (Kansas City: The Bufton Book Company, 1909)