\begin{table}%t1 \caption{\label{photom}Used photometrical data.} %\centering \par \begin{tabular}{lll} \hline\hline\noalign{\smallskip} Reference & Filter & Remarks \\ & system & \\ \hline \citet{de-Vaucouleurs:58} & $B$ & ellipses \\ \citet{Hoessel:80} & $U\/B\/V$ & major and \\ & & minor axis\\ \citet{Hodge:82} & $B$ & ellipses \\ \citet{Kent:87} & $R$ & ellipses \\ \citet{walterbos88} & $U\/B\/V\/R$ & ellipses \\ \citet{Pritchet:94} & $V$ & star counts\\ & & (minor axis) \\ \citet{Guhathakurta:05} & $V$ & star counts\\ & & (minor axis) \\ \citet{irwin05} & $V\/I$ & ellipses and \\ & & star counts\\ & & (minor axis) \\ \citet{Barmby:06} & $L$ & ellipses \\ \hline \end{tabular} \tablefoot{``Ellipses'' denote elliptically averaged surface brightness \mbox{profiles}.} \end{table}