 In 1564, by order of Maximilian II, he published detailed ephemeris tables for the sun, moon and other celestial bodies covering the years 1564 - 1574 in 10-day intervals and titled ""De coniunctionibus magnis insignoribus superiorum planetarum, solis defectibus, et de cometis effectum historica expositione"".In this book, recorded astronomical phenomena were linked with historical events (e.g.death of John of Luxembourg with a comet appearing in 1347).