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Author Question: All spiral galaxies have both a disk and spheroidal component to their stellar populations. ... (Read 118 times)

TFauchery

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All spiral galaxies have both a disk and spheroidal component to their stellar populations.
 
  Indicate whether the statement is true or false

Question 2

Our best stellar parallax measurements to date come from
 
  A) observations made by astronauts.
  B) radio interferometry.
  C) the Keck telescope.
  D) the Hipparcos satellite.
  E) ground based measurements taken six months apart.



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peter

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Answer to Question 1

TRUE

Answer to Question 2

D





 

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