Multiple Choice
The most recent correction to the calendar to keep the yearly date in tune with the seasons (resulting in the present calendar) was instituted by
A) Galileo.
B) Pope Gregory XIII.
C) Julius Caesar.
D) Sir Isaac Newton.
Correct Answer:

Verified
Correct Answer:
Verified
Q121: Suppose the Moon moved westward rather than
Q122: How long will it take, in solar
Q123: Precession is the<br>A) slow coning motion of
Q124: Summertime in the northern hemisphere is when<br>A)
Q125: An observer is studying the horizon from
Q127: The Moon is seen to keep one
Q128: How do the alt-azimuth coordinates of a
Q129: 10<sup>8</sup>/10<sup>9</sup> =<br>A) 10<sup>1</sup><br>B) 10<sup>17</sup><br>C) 10<sup>72</sup><br>D) 10<sup>-1</sup>
Q130: How much of the total surface of
Q131: If there are about 6000 stars in