\begin{table}%t5
\caption{Theoretical colours of M- and C-stars of solar metallicity. 
For some models, the second line indicates the colours when the star is
obscured by circumstellar dust equivalent to a dimming in~$K$ by 0.05~mag.}\label{tab-models}
%\centering
\par
\begin{tabular}{lrrr} 
\hline \hline
SpT  & $T_{\rm eff}$ & $(I-J)$ & $(J-K)$  \\
\hline
M 0         & 3850 & 1.18 & 1.08 \\
M 3         & 3550 & 1.39 & 1.18 \\
M 3 + dust  & 3550 & 1.53 & 1.34 \\
M 5         & 3397 & 1.86 & 1.27 \\
M 7         & 3129 & 3.11 & 1.37 \\
M 7 + dust  & 3129 & 3.73 & 1.97 \\
M 8         & 2890 & 3.71 & 1.37 \\
M 10        & 2500 & 4.13 & 1.35  \\
M 10 + dust & 2500 & 4.45 & 1.74 \\
C   & 3600 & 1.43 & 1.17 \\
C   & 3400 & 1.56 & 1.30 \\
C   & 3200 & 1.72 & 1.43 \\
C   & 2800 & 2.00 & 1.61 \\
C   & 2650 & 2.09 & 1.61  \\
C + dust   & 2650 & 2.48 & 2.09 \\
\hline
\end{tabular}
\end{table}