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Author Question: A star system where we observe the magnitude to increase and decrease is a(n) ________. Fill in ... (Read 17 times)

mia

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on: Jul 27, 2018
A star system where we observe the magnitude to increase and decrease is a(n) ________.
 
  Fill in the blank(s) with correct word

Question 2

The Galactic Year is the time for our solar system to orbit the Galaxy; it is about
 
  A) 15 million years.
  B) 225 million years.
  C) 4.5 billion years.
  D) 9.6 billion years.
  E) 13.5 billion years.


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LegendaryAnswers

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

eclipsing binary

Answer to Question 2

B


mia

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Reply 2 on: Jul 27, 2018
Gracias!

xiaomengxian

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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