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Author Question: The first extrasolar planets discovered are small and have long orbital periods. a. True b. ... (Read 59 times)

Mollykgkg

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on: Jul 27, 2018
The first extrasolar planets discovered are small and have long orbital periods.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

How do astronomers determine the distance to stars that are farther than 100 parsecs away?
 
  a. measuring the shift of the stellar parallax
 b. estimating a star's spectral type and comparing it to the spectroscopic parallax
  c. subtracting absolute from apparent magnitudes
 d. using trigonometry in the triangulation method
 e. measuring the proper motion of a star


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allisonblackmore

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

False

Answer to Question 2

c


Mollykgkg

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Reply #2 on: Jul 27, 2018
Thanks


allisonblackmore

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Reply #3 on: Jul 27, 2018
Welcome :)


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