Multiple Choice
Observations of what astronomical events allowed astronomers to definitively determine that the heliocentric model of the solar system was correct?
A) total eclipses of the Sun
B) the precise motions of planets across the celestial sphere
C) motion of bright stars on the celestial sphere
D) the timing of the equinoxes
E) the timing of the solstices
Correct Answer:

Verified
Correct Answer:
Verified
Q28: How did Ptolemy "fix" the geocentric system?<br>A)
Q32: If you start from rest and accelerate
Q36: Why were epicycles used in the geocentric
Q37: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4371/.jpg" alt=" Figure 2 -In
Q38: In terms of frames of reference, explain
Q39: If you travel at a velocity of
Q41: If you travel at a velocity of
Q43: If a 100-kg asteroid collides with Earth,
Q80: In the _ model of the Solar
Q89: If a superior planet is observed from