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Author Question: _______________ is the rate at which a star moves across the sky. Fill in the blank(s) with ... (Read 101 times)

Engineer

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_______________ is the rate at which a star moves across the sky.
 
  Fill in the blank(s) with correct word

Question 2

The central cores of which type of star is the lowest temperature?
 
  a. protostars.
  b. massive main-sequence stars.
  c. white dwarf stars.



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blakcmamba

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Answer to Question 1

Proper motion

Answer to Question 2

a




Engineer

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Reply 2 on: Jul 27, 2018
Wow, this really help


aruss1303

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Reply 3 on: Yesterday
Gracias!

 

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