Celestial sphere and the important points on it
Solstices
Equinoxes
Right ascension
Declination
Latitude
Longitude
Retrograde motion and planets
Precession
Epicycles
Size of earth
Julian vs. Gregorian calendar
International date line
GMT / UT
Ptolemy - 90-168 (Almagest, 150 AD)
Copernicus - 1473-1543 (De Revolutionibus Orbium Celestium, 1543)
Kepler - 1571-1630
Next class:
Galileo - 1542-1642
Newton - 1642-1727
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