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Rigel Has an Apparent Magnitude of + 0

Question 39

Multiple Choice

Rigel has an apparent magnitude of + 0.18 and Betelgeuse an apparent magnitude of +0.45. What can you conclude from this?


A) Rigel is brighter than Betelgeuse.
B) Betelgeuse must be closer to Earth.
C) Betelgeuse is brighter than Rigel.
D) Rigel must be closer to Earth.
E) Both stars are brighter than the full moon.

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