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Author Question: Rigel has an apparent magnitude of + 0.18 and Betelgeuse an apparent magnitude of +0.45. What can ... (Read 58 times)

jenna1

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on: Jul 27, 2018
Rigel has an apparent magnitude of + 0.18 and Betelgeuse an apparent magnitude of +0.45. What can you conclude from this?
 
  A) Betelgeuse must be closer to Earth.
  B) Rigel is brighter than Betelgeuse.
  C) Rigel must be closer to Earth.
  D) Betelgeuse is brighter than Rigel.
  E) Both stars are brighter than the full moon.

Question 2

An advantage a reflector has over a refractor is the elimination of ________.
 
  Fill in the blank(s) with correct word


AmberC1996

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

chromatic aberration.


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