slide 1
overview
slide 2
planets
slide 3
rotation
slide 4
rotation
slide 5
constellations
slide 6
constellations
slide 7
North Star
slide 8
SS features
slide 9
ecliptic
slide 10
zodiac
slide 11
Earth
slide 12
seasons
slide 13
Earth
slide 14
seasons
slide 15
intensity
slide 16
absorption
slide 17
shadows