EntityQ73013· pop 13· linked from 21 articlesPeter CrügerSign in to saveGerman astronomer and mathematician (1580-1639)ConnectionsMoonConceptGermanEntitymathematicsEntitypoetryEntityJohannes KeplerEntityGdańskEntityThirty Years' WarEntitymathematicianEntityTycho BraheEntityWayback MachineEntitySilesiaEntityastronomerEntitypolymathEntityLeipzig UniversityEntityJohannes HeveliusEntityKönigsbergEntityÜEntityDuchy of PrussiaEntityMartin Luther University Halle-WittenbergEntityUniversity of KönigsbergEntityCategories1580 births1639 deaths17th-century German astronomers17th-century German male writers17th-century German mathematicians17th-century Prussian peopleGerman male poetsGerman poetsGerman scientific instrument makersLeipzig University alumniScientists from KönigsbergUniversity of Königsberg alumni