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Author Question: If a star were moved 10 times farther away, its apparent magnitude would drop by five magnitudes. ... (Read 56 times)

Medesa

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on: Jul 27, 2018
If a star were moved 10 times farther away, its apparent magnitude would drop by five magnitudes.
 
  Indicate whether the statement is true or false

Question 2

What is true of spiral galaxies?
 
  A) They are much less common at larger redshifts.
  B) They are relatively rare in regions of high galaxy density.
  C) They are only found in the center of rich galaxy clusters.
  D) They have never been seen to have large redshifts.
  E) They evolve from giant ellipticals.


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shoemake

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

TRUE

Answer to Question 2

B


Medesa

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Reply 2 on: Jul 27, 2018
Gracias!

jamesnevil303

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Reply 3 on: Yesterday
Excellent

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