Doppler spectroscopy (also known as the radial-velocity method, or colloquially, the wobble method) is an indirect method for finding extrasolar planets and brown dwarfs from radial-velocity measurements via observation of Doppler shifts in the spectrum of the planet's parent star. 880 extrasolar planets (about 21.0% of the total) were discovered using Doppler spectroscopy, as of February 2020. And this is the formula that relates the brightness to the radius of the exoplanet. ∆B/B=R^2(exoplanet)/R^2(star) If you want to learn more about this spectroscopy click here .
880 extrasolar planets (about 21.0% of the total) were discovered using Doppler spectroscopy, as of February 2020.
And this is the formula that relates the brightness to the radius of the exoplanet.
∆B/B=R^2(exoplanet)/R^2(star)
If you want to learn more about this spectroscopy click here .