Which of the following describes the magnitude scale?
A) It originated just after the telescope was invented.
B) It can be used to indicate the apparent brightness of a star.
C) It is no longer used today.
D) It was used to determine the rate of precession.
Correct Answer:
Verified
Q2: Where is an observer's nadir?
A) the east
Q2: If the apparent visual magnitude of a
Q5: If the apparent visual magnitude of star
Q6: What causes the precession of Earth's rotation
Q7: Which of the following definitions best describes
Q8: How many official constellations are there?
A) 98
B)
Q9: What is the purpose of the magnitude
Q10: How long would you have to wait
Q17: What language is the source of most
Q24: Table 2-1
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