Context : The F8 star HD 181906 ( effective temperature \sim 6300 K ) was observed for 156 days by the CoRoT satellite during the first long run in the centre direction .
Analysis of the data reveals a spectrum of solar-like acoustic oscillations .
However , the faintness of the target ( m _ { v } =7.65 ) means the signal-to-noise ( S/N ) in the acoustic modes is quite low , and this low S/N leads to complications in the analysis .

Aims : To extract global variables of the star as well as key parameters of the p modes observed in the power spectrum of the lightcurve .

Methods : The power spectrum of the lightcurve , a wavelet transform and spot fitting have been used to obtain the average rotation rate of the star and its inclination angle .
Then , the autocorrelation of the power spectrum and the power spectrum of the power spectrum were used to properly determine the large separation .
Finally , estimations of the mode parameters have been done by maximizing the likelihood of a global fit , where several modes were fit simultaneously .

Results : We have been able to infer the mean surface rotation rate of the star ( \sim 4 \mu Hz ) with indications of the presence of surface differential rotation , the large separation of the p modes ( \sim 87 \mu Hz ) , and therefore also the “ ridges ” corresponding to overtones of the acoustic modes .

Conclusions :