Which of the following could not be determined by an observation that uses only spectroscopy?
A) the chemical composition of a distant star
B) the speed at which a distant galaxy is moving away from us
C) the surface temperature of a distant star
D) the rotation rate of a distant star
E) the size of a distant galaxy
Correct Answer:
Verified
Q1: What is the purpose of adaptive optics?
A)to
Q2: Currently,the largest optical telescope mirrors have a
Q3: Which of the following is not a
Q4: What is an artificial star?
A)a point of
Q5: Order the following in order of increasing
Q7: What do astronomers mean by light pollution?
A)Light
Q8: Which of the following wavelength regions cannot
Q9: Which of the following statements about light
Q10: Which of the following could not be
Q11: Which of the following is a principal
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