Career
Quietanus was the first to employ Kepler"s revised Rudolphine Tables in production of a writing calendar. His Natürliche Practica und Witterung, auf dass Jahr der Geburt Jesu Christi, M.DC.XLII. Im 24. Jahr der beharrlichen Kriegen in Teutschlandt was published by Georg Friedrich Spannseil.
He sent copies of his Observationes et descriptiones duorum cometarum (1628) and Oeniponti (1629), intended for Galileo, to Federico Cesi and Giovanni Faber in Rome.