\begin{table}%T2 \caption{Different fitting methods tested, with fixed or free parameters. Free parameters are fitted; fixed parameters are tested on a grid of \mbox{values}. \label{methode}} \small%\centering \par \begin{tabular}{lllll} \hline\hline Fitting method & A & B & C & D\\ \hline inclination $i$ & fixed & fixed & fixed & fixed \\ number of spots $\ntache$& fixed & fixed & fixed & fixed \\ lifetime & free & fixed & fixed & fixed \\ rotation & free & free & fixed & fixed \\ differential rotation & -- & -- & 0 & fixed \\ spots & free & free & free & free \\ \hline stellar parameters & 2 & 3 & 4 & 5 \\ spot parameters & 6 & 5 & 4 & 4 \\ parameters &$2+6$$\ntache$&$3+5$$\ntache$&$4+4$$\ntache$&$4+4$$\ntache$\\ \hline \end{tabular} \end{table}