Caspar Structural Biology Symposium

Saturday and Sunday, January 7-8, 2017 | Chemical Sciences Laboratory Auditorium (CSL 1003) | Florida State University, Tallahassee, FL 32306-4390

Caspar Kepler Image by J Clarage


DLD Caspar presenting Kepler’s solar system in Dürer’s pentagonally illuminated sanctum

Caption and explanation for Portrait of DLD Caspar, by James Clarage

Don Caspar holding the 1597 engraving of Johannes Kepler’s Platonic model of the solar system from his Mysterium Cosmigraphicum, superimposed on Albrecht Dürer’s engraving of St. Jerome. In this illustration, glazing and shadows of the foremost stained glass windows have been replaced with projections from a pentagonal lattice illustrated in Caspar Fontano (1996). This pentiling pattern superposes an extension of Kepler’s pentagonal tiling from his Harmonices Mundi (1619) on Roger Penrose’s (1979) first quasiperiodic pentagonal tiling. These tilings are each arranged with the five-fold symmetry of Dürer’s basic pentagonal packing illustrated in his Manual of Measurement of Lines, Areas and Solids (1525). The frame pattern is an elliptically distorted version of the autocorrelation function of Caspar and Fontano’s pentiling lattice. Illustrated by James Clarage.


Updated: January 10, 2017.