\begin{table}%t1
\caption{General properties of NGC 6822.} \label{properties}
%\begin{center}
\par
\begin{tabular}{c c}
\hline\hline
  Type & $IB(s)m ^{a}$ \\
  RA (center)      & $19^{\rm h} 44^{\rm m} 56.6^{\rm s}$ \\
  Dec (center)     & $-14^{\circ} 47^{\prime} 21^{\prime\prime}$$^{a}$ \\
  Dimensions   & $15.5^{\prime}\times13.5^{\prime}$$^{a}$ \\
  Distance    & $500$~kpc$^{b}$ \\
  Distance modulus    & $23.49\pm0.05$ mag$^{c}$ \\
  $M_{V}$    & $-16$ mag$^{b}$ \\
  $E(B-V)$    & $0.25\pm0.02$ mag$^{d}$ \\Sect.
  $Z$    & $0.004 ^{e}$ \\
  ${\it SFR}$    & $0.06~M_{\odot}~{\rm yr}^{-1}$$^{f}$ \\
\hline
\end{tabular}
\par
$^a$ NASA/IPAC Extragalactic Database.\\
$^b$ van den Bergh (2000).\\
$^c$ Gallart et~al. (\cite{Gallart1996a}).\\
$^d$ Massey et~al. (\cite{Massey2007}).\\
$^e$ Skillman et~al. (\cite{Skillman1989}).\\
$^f$ Mateo (\cite{Mateo1998}), Israel et~al. (1996).
%\end{center}
\end{table}