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Author Question: What type of observation can astronomers use to measure the composition of extrasolar planet ... (Read 71 times)

Ebrown

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on: Jul 27, 2018
What type of observation can astronomers use to measure the composition of extrasolar planet atmospheres?
 
  A) measurements of the host star's velocity throughout an orbital cycle
  B) measurement of how frequently the planet blocks the host star's light
  C) comparisons of spectra when planets are in front of or are eclipsed by their host stars
  D) combination of a transit observation and a Doppler shift measurement

Question 2

There are no auroras on Venus because it
 
  A) is too hot. B) lacks atmospheric oxygen.
  C) lacks a strong magnetic field. D) lacks strong winds.


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Swizqar

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

C

Answer to Question 2

C


Ebrown

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

raenoj

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Reply 3 on: Yesterday
Excellent

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