Cometary Theory in Fifteenth-Century Europe

afpectus Albertus Magnus Albumasar alignments Almagest angle angulus anno apparent place apparet apparuit appeared arcus Aristotle Aristotle's astrological astronomical autem azimuth Bernardino Baldi cauda Celoria centro chapter charts comet comet's apparent comet's position comet's tail cometary observations cometary positions cometary theory determined diameter discussion distance earth earth's radius ecliptic ecliptica edition effe eius enim erit etiam Ferrari d'Ochieppo ficut fixed stars Folio fuit funt gradus Hellman instrument Jacobus January John of Damascus known komet Latin latitude longitude magis manuscript Mars measure Menelaos meridian miles motu nature Nicholas of Cusa numbers orbit Paolo parallax Peurbach Pingré planetary planets proper motion Ptolemy Ptolemy's quia quod Regiomontanus region Sarton Seneca Sixteen Problems sixteenth century sphere Spica stella terra terræ Thorndike 1950 torquetum Toscanelli translation treatise triangle true place tunc Uzielli vapor vero vifus vnde Wrocław Zinner