Rossiter-McLaughlin effect

Forums Sun Solar rotation from Doppler measurements Rossiter-McLaughlin effect

Robin Leadbeater

While watching the recent partial eclipse in largely cloudy skies I wondered if it might be possible to follow an eclipse even in cloudy conditions in spectra of the sky. The shape of the spectrum line profiles should alter slightly as different parts of the rotating solar disc are covered. (Similar to the Rossiter-McLaughlin effect see in the spectrum of eclipsing binaries)  Does anyone know if this type of observation has ever been attempted ?