HD 203608, a quiet asteroseismic target in the old galactic disk
HD 203608, a quiet asteroseismic target in the old galactic disk
Context. We conducted a 5-night observing run with the spectrometer harps at the ESO 3.6-m telescope in August 2006, to continue exploring the asteroseismic properties of F-type stars. In fact, Doppler observations of F-type on the main sequence are demanding and remain currently limited to a single case (HD 49933). …