Which methods are utilized to detect exoplanets within the Milky Way?
Answer
Transit method and radial velocity method
Astronomers use the transit method, which monitors a star for periodic dimming caused by a planet passing in front of it, and the radial velocity method, which detects the slight gravitational wobble a star experiences due to an orbiting planet. These techniques are effective in our own galaxy due to our proximity to the stars, but they lose effectiveness at intergalactic distances.
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