Multiple Choice
By what factor would the brightness of a star increase if an observer moved from 5 parsecs to 1 parsec from the star?
A) 5 times
B) 25 times
C) 125 times
D) 625 times
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q31: Suppose we observe a hot,tenuous gas against
Q32: The stars located in the lower left
Q33: Consider two stars X and Y with
Q34: Most of the stars in a typical
Q35: A star with a trigonometric parallax of
Q37: Which of the following produces an emission
Q38: A measurement of the parallax of a
Q39: Why are there more main sequence stars
Q40: Suppose the electron in an atom is
Q41: Visual wavelength absorption lines of hydrogen are