\begin{table}%t2
\par
%\centering
\par
\caption{\label{parameters}{Fundamental stellar parameters for our
    sample stars as determined by \citet{Decinthesis}. The effective
    temperature $T_{{\rm eff}}$ is given in~K, the logarithm of the
    gravity in cgs units, the microturbulent velocity~$\xi_{\rm t}$ in~km~s$^{-1}$, the angular diameter in mas, the parallax $\pi$ in
    mas, the distance~$D$ in parsec, the radius $R$ in $R_{\odot}$,
    the gravity-induced mass~$M_{\rm g}$ in $M_{\odot}$ and the luminosity
    $L$ in $L_{\odot}$. PP denotes a plane-parallel geometry, SPH
        a spherical geometry.}}
\begin{tabular}{lccccc}  
\hline\hline
\rule[-3mm]{0mm}{8mm} & $\alpha$~CMa & $\alpha$~Car & $\alpha$~Cen~A &
$\alpha$~Boo & $\beta$~UMi\\
\hline
\rule[0mm]{0mm}{5mm}Sp. type & A1~V & F0~II & G2~V & K2~IIIp & K4~III \\
$T_{{\rm eff}}$ & $10150 \pm 400$ & $7350 \pm 300$ & $5830 \pm 30$ & $4300 \pm 70$ &
$4150 \pm 70$ \\
$\log~g$ & $4.30 \pm 0.20$ & $1.80 \pm 0.50$ & $4.35 \pm 0.05$ &
$1.50 \pm 0.15$ & $1.90 \pm 0.15$ \\
$\xi_{\rm t}$ & $2.0 \pm 0.5$ & 2.0 & $1.0 \pm 0.1 $ & $1.7 \pm 0.5$ &
$2.0 \pm 0.5$ \\
${\rm [Fe/H]}$ & $0.50 \pm 0.30$ & $-0.25 \pm 0.05$ & $0.25 \pm 0.02$ &
$-0.50 \pm 0.20$ & $-0.15 \pm 0.20$ \\
$\varepsilon$(C) & $7.97 \pm 0.15$ & $8.41 \pm 0.10$ & $8.74 \pm 0.05$ &
$7.96 \pm 0.15$ & $8.40 \pm 0.20$ \\
$\varepsilon$(N) & $8.15 \pm 0.15$ & $8.68 \pm 0.05$ & $8.26 \pm 0.09$ &
$7.55 \pm 0.15$ & $8.16 \pm 0.20$ \\
$\varepsilon$(O) & $8.55 \pm 0.12$ & $8.91 \pm 0.10$ & $9.13 \pm 0.06$ &
$8.67 \pm 0.15$ & $8.83 \pm 0.15$ \\
\cc & 89 & 89 & 89 & $7 \pm 1$ & $9 \pm 1$ \\
\ad & $6.17 \pm 0.27$ & $7.22 \pm 0.30$ & $8.80 \pm 0.34$ &
$20.80 \pm 0.83$ & $9.86 \pm 0.40$ \\
$\pi$ & $379.21 \pm 1.58$ & $10.43 \pm 0.53$ & $737 \pm 2.6$ &
$88.85 \pm 0.74$ & $25.79 \pm 0.52$ \\
$D$ & $2.63 \pm 0.01$ & $95.88 \pm 4.87$ &  $1.36 \pm 0.01$ &
$11.26 \pm 0.09$ & $38.78 \pm 0.78$ \\
$R$ & $1.75 \pm 0.08$ & $74.39 \pm 4.89$ & $1.27 \pm 0.05$ &
$25.24 \pm 1.03$ & $41.09 \pm 1.87$ \\
$M_{\rm g}$ & $2.23 \pm 1.05$ {\small{(PP)}} & $12.8 \pm 6.13$ {\small{(PP)}} &
$1.30 \pm 0.46$ {\small{(PP)}} & $0.74 \pm 0.26$ {\small{(SPH)}} &
$4.90 \pm 1.90$ {\small{(SPH)}} \\
\rule[-3mm]{0mm}{3mm}$L$ & $29 \pm 4$ & $14571 \pm 497$ & $1.7 \pm 0.2$ &
$196 \pm 21$ & $452 \pm 48$ \\
\hline
\hline
\rule[-3mm]{0mm}{8mm} & $\gamma$~Dra & $\alpha$~Tau & $\beta$~And &
$\alpha$~Cet & $\beta$~Peg\\
\hline
\rule[0mm]{0mm}{5mm}Sp. type & K5~III & K5~III & M0~III & M2~III & M2.5~III \\
$T_{{\rm eff}}$ & $3930 \pm 70$ & $3850 \pm 70$ & $3780 \pm 70$ & $3745 \pm 70$ &
$3590 \pm 150$ \\
$\log~g$ & $1.55 \pm 0.25$ & $1.50 \pm 0.15$ & $1.40 \pm 0.20$ &
$1.30 \pm 0.15$ & $1.50 \pm 0.40$ \\
$\xi_{\rm t}$ & $2.0 \pm 0.5$ & $1.7 \pm 0.3$ & $2.3 \pm 0.5 $ & $2.3 \pm 0.5$ &
$2.3 \pm 0.5$ \\
${\rm [Fe/H]}$ & $0.00 \pm 0.20$ & $-0.15 \pm 0.20$ & $0.00 \pm 0.20$ &
$0.00 \pm 0.20$ & $0.00 \pm 0.30$ \\
$\varepsilon$(C) & $8.22 \pm 0.20$ & $8.35 \pm 0.20$ & $8.20 \pm 0.20$ &
$8.40 \pm 0.20$ & $8.56 \pm 0.30$ \\
$\varepsilon$(N) & $8.26 \pm 0.20$ & $8.35 \pm 0.20$ & $8.37 \pm 0.20$ &
$8.26 \pm 0.20$ & $8.24 \pm 0.30$ \\
$\varepsilon$(O) & $8.81 \pm 0.15$ & $8.83 \pm 0.15$ & $8.84 \pm 0.15$ &
$8.93 \pm 0.15$ & $9.03 \pm 0.30$ \\
\cc & $10 \pm 1$ & $10 \pm 1$ & $9 \pm 1$ & $10 \pm 1$ & $7 \pm 1$ \\
\ad & $10.07 \pm 0.40$ & $20.77 \pm 0.83$ & $13.59 \pm 0.55$ &
$12.52 \pm 0.50$ & $16.88 \pm 0.70$ \\
$\pi$ & $22.10 \pm 0.46$ & $50.09 \pm 0.95$ & $16.36 \pm 0.76$ &
$14.82 \pm 0.83$ & $16.37 \pm 0.72$ \\
$D$ & $45.25 \pm 0.94$ & $19.96 \pm 0.38$ &  $61.12 \pm 2.84$ &
$67.48 \pm 3.78$ & $61.08 \pm 2.69$ \\
$R$ & $48.97 \pm 2.21$ & $44.63 \pm 1.97$ & $89.27 \pm 5.50$ &
$90.86 \pm 6.25$ & $110.52 \pm 6.69$ \\
$M_{\rm g}$ & $3.11 \pm 1.50$ {\small{(SPH)}} & $2.30 \pm 0.82$
{\small{(SPH)}} & $7.32 \pm 3.48$ {\small{(SPH)}} &
$6.02 \pm 2.89$ {\small{(SPH)}} & $14.12 \pm 6.73$ {\small{(SPH)}} \\
\rule[-3mm]{0mm}{3mm}$L$ & $516 \pm 59$ & $395 \pm 45$ & $1468 \pm 211$ &
$1465 \pm 229$ & $1830 \pm 300$ \\
\hline
\end{tabular}
\end{table}