\begin{table}%T3
%\catcode`\#=\active \def#{\hphantom{0}}
\caption{Europa's limb-darkening parameter.}
\label{T:kEuropa}
%\centerline
{
\begin{tabular}{cccll}
  \hline\hline
  \noalign{\smallskip}
  Minnaert para- & $\lambda$ & Solar phase   & \hfil Method\hfil& \hfil Reference\hfil \\
  meter $k$ 	 &  [nm]     & angle $\alpha$&        	    &                      \\
  \hline
  \noalign{\smallskip}
  0.60  & $410^c$ 	& $4^\circ5$	& Mutual event (ESO)
	& Descamps et~al. (\cite{descamps92})	\\
  0.57  & $800^c$ 	& $4^\circ5$	& Mutual event (Pic du Midi)
	& Descamps et~al. (\cite{descamps92})	\\
  $0.63^{a,e}$  & $410{-}580^d$ 	& $2^\circ9$	& Voyager 1
	& Buratti \& Veverka (\cite{buratti83})	\\
  $0.67^{a,f}$  & $410{-}580^d$ 	& $3^\circ8$	& Voyager 2
	& Buratti \& Veverka (\cite{buratti83})	\\
  0.58  & $395{-}895^b$	 	& $8{-}11^\circ$	& Modulated photometry 
	& Present work ($R=1562~$km) \\
  \hline
\end{tabular}}
\par
\smallskip
$^a$ Average value on terrain type and wavelength.\\
$^b$ Hipparcos $H_p$ broad passband.\\
$^c$ Effective wavelength.\\
$^d$ The range corresponds to different filters.\\
$^e$ Subspacecraft longitude of $341^\circ$.\\
$^f$ Subspacecraft longitude of $33^\circ$.
\end{table}