\begin{table}%t3
\caption{\label{classes}The different variability classes considered by the CVC and our abbreviations.}
\par
%\centering
\par
 \small\begin{tabular}{ll}
  \hline\hline
  Stellar variability class & Abbreviation \\
  \hline
$\beta$-Cephei stars&BCEP\\
Variable Be-stars&BE\\
Classical Cepheids&CLCEP\\
Chemically peculiar stars&CP\\
Double-mode Cepheids&DMCEP\\
$\delta$-Scuti stars&DSCUT\\
Eclipsing binaries (all types)&ECL\\
Ellipsoidal variables&ELL\\
FU-Ori stars&FUORI\\
$\gamma$-Doradus stars&GDOR\\
Herbig Ae/Be stars&HAEBE\\
Low-amplitude periodic variables&LAPV\\
Lambda-Bootis variables&LBOO\\
Luminous Blue variables&LBV\\
Mira variables&MIRA\\
Population II Cepheids&PTCEP\\
Periodically variable supergiants&PVSG\\
RR-Lyrae stars, subtype ab&RRAB\\
RR-Lyrae stars, subtype c&RRC\\
Double-mode RR-Lyrae stars&RRD\\
RV-Tauri stars&RVTAU\\
Pulsating subdwarf B-stars&SDBV\\
Slowly pulsating B-stars&SPB\\
Short-period $\delta$-Scuti variables&SPDS\\
Semi-regular variables&SR\\
SX-Phe stars&SXPHE\\
T-Tauri stars&TTAU\\
Wolf-Rayet stars&WR\\
X-ray binaries&XB\\
 \hline
\end{tabular}%\vspace*{3mm}
\end{table}