Greek
Astronomy 500BC-350BC
•500BC
–Pythagorus - concentric celestial spheres for Sun, Moon, planets - all bodies spherical (including Earth)
–Philolaus - Earth goes around central fire (Sun)
•350BC
–Aristotle - Sun is further than Moon (slower against stars), eclipses - Earth is round (shadow on Moon), going north makes pole star rise
–choose geocentric model
•feels like it; no stellar parallax
