7
Galileo’s
additional observations
•Detects
sunspots and the rotation of the Sun.
–Further
evidence of the “imperfect” heavens
•Detects the
phases of Venus
–Phases show
that Venus must orbit the Sun.
•“Full” Venus when it is on far side of Sun.
•“Crescent” Venus when it is on near side of Sun.
From our text:
Horizons, by Seeds