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Author Question: What is the primary factor in determining the classification for an elliptical galaxy? a. size ... (Read 50 times)

theo

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What is the primary factor in determining the classification for an elliptical galaxy?
 
  a. size
  b. shape
  c. mass
  d. color

Question 2

Why are distant stars redder than nearby stars of the same spectral type?
 
  What will be an ideal response?



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todom5090

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Answer to Question 1

b

Answer to Question 2

Interstellar reddening makes stars seen through a cloud of gas and dust look redder than they should because shorter wavelength light is more easily scattered.





 

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