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Approximately how many astronomical units are equivalent to one light-year?
Light in space travels approximately 9.5 trillion km per year. Therefore, the images that astronomers see of distant objects
all of the above
No. Parallax cannot be used to calculate the distances of objects more than approximately 300 light-years away.
both A and B
distance
150 million kilometers
6 AU
63,000 AU
What is necessary to calculate a star's distance from Earth?
Light in space travels approximately 9.5 trillion km per year. Therefore, the images that astronomers see of distant objects
all of the above
No. Parallax cannot be used to calculate the distances of objects more than approximately 300 light-years away.
both A and B
distance
150 million kilometers
6 AU
63,000 AU
How do light-years help astronomers to determine the ages of distant objects in space?
Light in space travels approximately 9.5 trillion km per year. Therefore, the images that astronomers see of distant objects
all of the above
No. Parallax cannot be used to calculate the distances of objects more than approximately 300 light-years away.
both A and B
distance
150 million kilometers
6 AU
63,000 AU
An astronomical unit is equivalent to
Light in space travels approximately 9.5 trillion km per year. Therefore, the images that astronomers see of distant objects
all of the above
No. Parallax cannot be used to calculate the distances of objects more than approximately 300 light-years away.
both A and B
distance
150 million kilometers
6 AU
63,000 AU
A light-year is a measure of
Light in space travels approximately 9.5 trillion km per year. Therefore, the images that astronomers see of distant objects
all of the above
No. Parallax cannot be used to calculate the distances of objects more than approximately 300 light-years away.
both A and B
distance
150 million kilometers
6 AU
63,000 AU
A star is located approximately 500 million light-years from Earth. Can a student determine the star's distance by calculating its parallax angle?
Light in space travels approximately 9.5 trillion km per year. Therefore, the images that astronomers see of distant objects
all of the above
No. Parallax cannot be used to calculate the distances of objects more than approximately 300 light-years away.
both A and B
distance
150 million kilometers
6 AU
63,000 AU
What is the distance of an object from Earth if the object is 7 AU from the sun? (Assume that both Earth and the object are located in the same direction from the sun.)
Light in space travels approximately 9.5 trillion km per year. Therefore, the images that astronomers see of distant objects
all of the above
No. Parallax cannot be used to calculate the distances of objects more than approximately 300 light-years away.
both A and B
distance
150 million kilometers
6 AU
63,000 AU
What is a constellation?
Light in space travels approximately 9.5 trillion km per year. Therefore, the images that astronomers see of distant objects
all of the above
No. Parallax cannot be used to calculate the distances of objects more than approximately 300 light-years away.
both A and B
distance
150 million kilometers
6 AU
63,000 AU
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