Multiple Choice
A total lunar eclipse can last more than an hour and a half, but a total solar eclipse never lasts more than 7 1/2 minutes. What is the principal cause of the difference?
A) A total solar eclipse always occurs when the Moon is at perigee; it is moving fastest at that time.
B) A total solar eclipse always occurs when Earth is at perihelion; it is moving fastest at that time.
C) Both Earth and the Moon move clockwise in their orbits, as seen from the north. Thus, during a solar eclipse, Earth and Moon are moving in opposite directions, and during a lunar eclipse, they are moving in the same direction.
D) Earth's shadow at the Moon's distance is much larger than the Moon's shadow at Earth's distance. As Earth rotates, this narrow lunar shadow sweeps quickly over any given spot.
Correct Answer:
Verified
Correct Answer:
Verified
Q46: The mean distance of Saturn from the
Q47: What is the phase of the Moon
Q48: What was the approximate declination of the
Q49: What would the position and motion of
Q50: The constellation Pisces the Fish is high
Q52: Precession of Earth's spin axis results in<br>A)
Q53: In the southern hemisphere, day and night
Q54: The Sun appears to be about 1/2°
Q55: The right ascension of a star is
Q56: Over the period of 1 complete year,