Short Answer
In the eighteenth and nineteenth centuries, the rare transits of ________ were critical indetermining the astronomical unit's length.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q34: Explain how Kepler's laws allow us to
Q35: Which of these observations of Galileo refuted
Q36: Today we rely largely on what technique
Q37: The orbits of most of the planets
Q38: How does Kepler's First Law refine the
Q40: According to Copernicus, the retrograde motion for
Q41: When a planet retrogrades, it appears to
Q42: Newton's modification of Kepler's Third Law lets
Q43: Transits of Venus were critical in early
Q44: We are at _ in January, when