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Author Question: Most of the planets discovered around other stars are more massive than Jupiter. Indicate whether ... (Read 20 times)

hubes95

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on: Jul 27, 2018
Most of the planets discovered around other stars are more massive than Jupiter.
 
  Indicate whether the statement is true or false

Question 2

Why do astronomers speak in terms of redshifts rather than distances to faraway objects?
 
  What will be an ideal response?


phuda

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

TRUE

Answer to Question 2

Distance is an uncertain quantity: do you mean current or distance when the light was emitted? Redshift is a measured quantity, whereas distance must be cycled through the Hubble Law with its inherent uncertainties.


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