Star X has an apparent magnitude of 3, and star Y has an apparent magnitude of 13. How do they compare in observed brightness?
A) Star Y is 10,000 times brighter than star X.
B) Star Y is 10 times brighter than star X.
C) Star X is 10,000 times brighter than star Y.
D) Star X is 10 times brighter than star Y.
Correct Answer:
Verified
Q14: Q15: What are the standard units for apparent Q16: Which of the following statements about spectral Q17: You measure the parallax angle for a Q18: Assuming that we can measure the apparent Q20: If the distance between us and a Q21: What is the approximate age of a Q22: Which star is the hottest star? Q23: Which main- sequence star has the lowest Q24: What is the spectral type of a
A)O
B)G
C)M
D)A
E)Can't tell
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