Which of the Following Methods Has Been the MOST Successful

question 33

Multiple Choice

Which of the following methods has been the MOST successful in detecting extrasolar planets around other star systems?

• A) regular changes in the positions of the parent stars with respect to more distant stars as they move across the sky
• B) detection of brightness changes in a star as a planet passes in front of it
• C) detection of Doppler shifts in the spectra of the parent stars
• D) detection of reflected starlight

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