A) The phase of the Moon must be new,and the nodes of the Moon's orbit must be nearly aligned with Earth and the Sun.
B) The phase of the Moon must be full,and the nodes of the Moon's orbit must be nearly aligned with Earth and the Sun.
C) The phase of the Moon can be new or full,and the nodes of the Moon's orbit must be nearly aligned with Earth and the Sun.
D) The phase of the Moon must be new,and the Moon's orbital plane must lie in the ecliptic.
E) The phase of the Moon must be full,and the Moon's orbital plane must lie in the ecliptic.
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The solar system lies in the outer parts...View Answer
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A) It is the daily rise and set of the stars.
B) It describes the fact that stars are actually moving relative to one another,even though to our eyes the stars appear fixed in the constellations.
C) It is the slight back-and-forth shifting of star positions that occurs as we view the stars from different positions in Earth's orbit of the Sun.
D) It is the change in the set of constellations that we see at different times of year in the evening sky.
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A) The planet rises in the west and sets in the east.
B) The planet appears to move westward with respect to the stars over a period of many nights.
C) The planet moves backward through the sky over the course of a night.
D) The planet moves backward in its orbit around the Sun.
E) The planet moves through constellations that are not part of the zodiac.
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A) The time between new Moons is two weeks.
B) The time from one new Moon to the next new Moon is the same as the time from first-quarter Moon to third-quarter Moon.
C) The full Moon sometimes rises around midnight.
D) It is possible to have two full Moons during January,but not usually during February.
E) It is possible to have two full Moons during November,but not during December.
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This statement does not makes sense beca...View Answer
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A) the 26,000-year cycle of the Earth's precession
B) the roughly 18-year cycle over which the pattern of eclipses repeats
C) the roughly one-month cycle of lunar phases in the sky
D) the annual cycle of the seasons
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This statement does not make s...View Answer
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A) full.
B) first quarter.
C) third quarter.
D) waning crescent.
E) waxing crescent.
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A) Earth rotates once each day.
B) Earth revolves around the Sun once each year.
C) The direction of Earth's axis in space precesses with a period of 26,000 years.
D) Stars appear to move randomly in the local solar neighborhood
E) The universe is expanding.
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A) Earth rotates once each day.
B) Earth revolves around the Sun once each year.
C) The direction of Earth's axis in space precesses with a period of 26,000 years.
D) Stars appear to move randomly in the local solar neighborhood
E) The universe is expanding.
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During the new Moon,...View Answer
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A) our evening view of space depends on where Earth is located in its orbit around the Sun.
B) during some times of year,some constellations drop below the southern horizon.
C) some constellations are circumpolar.
D) on any particular night,we can only see stars that are directly opposite (180 degrees away from) the Sun in the sky.
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A) The Earth is placed at the center of the celestial sphere.
B) When we look in the sky,the stars all appear to be located on the celestial sphere.
C) The "celestial sphere" is another name for our universe.
D) The celestial sphere does not exist physically.
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