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One method to find extrasolar planets is by observing the Doppler shift arising from the reflex...

One method to find extrasolar planets is by observing the Doppler shift arising from the reflex motion of the central star. Is this technique best able to find planets that are close or far away from the star? Planets that are massive or low mass? Planets that have a large or small radius? Why? Explain your reasoning for each.

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