Astronomicum CæsareumApian, PeterSteele, GeoffreyHatvany, AntoniaLatinBook1540[Ingolstadt] : Factum et actum Ingolstadii in ædibus nostris [Peter Apian], Anno a Christo nato sesquimillesimo quadragesimo mense Maio [May 1540].Charles V Holy Roman Emperor 1500-1558Ferdinand I Holy Roman Emperor 1503-1564Astronomy—Early works to 1800Comets—Early works to 1800Book