Dante and the Early Astronomers

Albertus Magnus Alfraganus Almagest Anaxagoras Anaximander ancient appear Arabic Aries Aristarchus Aristotle astrologers astronomy Babylonian Beatrice bright Brunetto Brunetto Latini called Canz celestial centre century circle constellations Conv Convivio Dante Dante's deferent described direction distance diurnal diurnal motion Divina Commedia Divine Earth east eccentric eclipses Egyptian epicycle equator equinox Eudoxus fire Gemini Greek heaven heavenly bodies hemisphere Hipparchus horizon Jerusalem Jupiter Latin latitude Libra light Longfellow Mars mentioned Mercury meridian months moon moon's morning motion mountain move movements nature night observations Paradiso passage period philosophers Pisces planetary Pleiades poet pole position precession Ptolemy Ptolemy's Purg Purgatory Pythagoreans quoted revolution revolving rise Ristoro rotation Saturn says Scorpio seems seen shadow shining skies southern sphere Spica star-sphere stars stelle sun and moon sun's sunrise theory thought Universe Ursa Ursa Major Venus Virgil visible whole zodiac