\begin{table}%t1 \caption{\label{tab1}General data on NGC~3607.} %\renewcommand{\tabcolsep}{4.0mm} \par %\centerline {\small \begin{tabular}{lcl} \hline\hline Parameter&& Value\\ \hline $\rm\alpha(J2000)$ && $11^{\rm h}16^{\rm m}54.6^{\rm s}$ \\ $\rm\delta(J2000)$ && $+18\degr03\arcmin07\arcsec$ \\ $M_B$ && $-21.92$ \\ $B$ && $10.8$ \\ $E(B-V)$ && $0.070$ \\ $L_{\rm H\alpha + [NII]}$ && $\rm1.28 \times 10^{41}~erg~s^{-1}$ \\ Heliocentric radial velocity && $\rm960\pm20~km~s^{-1}$ \\ Distance && $12.8$~Mpc\\ Redshift && $0.003202\pm0.000067$ \\ Diameters && $4.9\arcmin\times2.5\arcmin$ \\ Effective radius$^\dagger$ && $43.4\arcsec$\\ %$H_0$ ($\rm km~s^{-1}~Mpc^{-1}$) && $75$ \\ \hline \end{tabular}} \par \medskip Note. Data obtained at the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. ($\dagger$) $R_{\rm e}$ from \citet{Annibali07}. \end{table}