\begin{table}%tA.9%tA.10 \caption{\label{tab_EW_n6253}List of binary systems (contact, detached and semi-detached binaries) located at less than 8\arcmin\ from the centre which are considered as candidate members of NGC~6253.} \par %\centering \small \begin{tabular}{lrl ll cccc clcc r cccc} \hline \hline \noalign{\smallskip} & & & & & & & & & & & & & & \multicolumn{4}{c}{Membership}\\ \multicolumn{1}{c}{Star}& \multicolumn{1}{c}{ID} & \multicolumn{1}{c}{Type}& \multicolumn{1}{c}{$\alpha_{2000}$}& \multicolumn{1}{c}{$\delta_{2000}$}& \multicolumn{1}{c}{$R_{\rm max}$}& \multicolumn{1}{c}{\ovv}& \multicolumn{1}{c}{\ovbv}& \multicolumn{1}{c}{\ovvi}& \multicolumn{1}{c}{$T_{\rm min}$}& \multicolumn{1}{c}{Period}& \multicolumn{1}{c}{Ampl.}& \multicolumn{1}{c}{Distance}& \multicolumn{1}{l}{MP}%\\ & \multicolumn{1}{c}{CMD} & \multicolumn{1}{c}{CMD} & \multicolumn{1}{c}{PLC} & \multicolumn{1}{c}{PLC} \\ & & &\multicolumn{1}{c}{[deg]} &\multicolumn{1}{c}{[deg]} &\multicolumn{1}{c}{[mag]} &\multicolumn{1}{c}{[mag]} &\multicolumn{1}{c}{[mag]} &\multicolumn{1}{c}{[mag]} &\multicolumn{1}{c}{[HJD]} &\multicolumn{1}{c}{[d]} &\multicolumn{1}{c}{[$R$ mag]} &\multicolumn{1}{c}{[arcmin]} &\multicolumn{1}{c}{\%}%\\ & \multicolumn{1}{c}{\textit{B-V}} & \multicolumn{1}{c}{\textit{V-I}} & \multicolumn{1}{c}{\textit{B-V}} & \multicolumn{1}{c}{\textit{V-I}} \\ \hline \multicolumn{14}{c}{Contact binaries}\\ 23188\_2 & 41~404 &EW& 254.656188433 & --52.61619778 & 14.464 & 14.928 & 0.751 & 0.923 & 70.594 & 0.49680 & 0.32 & 6.9 & 87 & y & y & y & y \\ 10853\_2 & 31~606 &EW& 254.800782797 & --52.669356128 & 16.342 & 16.921 & 1.049 & 1.191 & 70.777 & 0.29340 & 0.02 & 2.6 & 78 & y & y & y & y \\ 01015\_2 & 23~797 &EW& 254.782447929 & --52.805883546 & 15.462 & 15.969 & 0.874 & 1.036 & 70.637 & 0.38720 & 0.05 & 5.9 & 22 & y & y & y & y \\ 13288\_2 & 33~521 &EW& 254.673007553 & --52.637555967 & 14.807 & 15.444 & 1.291 & 0.955 & 70.867 & 0.47290 & 0.44 & 5.5 & 3 & n & y & y & y \\ 09268\_2 & 30~341 &EW& 254.720919972 & --52.690243537 & 15.572 & 16.244 & 1.159 & 1.363 & 70.637 & 0.26920 & 0.04 & 2.1 & 87 & n & n & y & n \\ 03079\_1 & 2271 &EW& 254.891186992 & --52.771171402 & 16.672 & 17.416 & 1.177 & 1.026 & 70.918 & 0.34880 & 0.39 & 5.8 & -- & y & n & y & n \\ 10805\_2 & 31~566 &EW& 254.770365377 & --52.670201471 & 17.518 & 18.728 & 0.563 & 1.613 & 70.773 & 0.37090 & 0.44 & 2.3 & 32 & n & y & n & y \\ 27757\_1 & 19~653 &EW& 254.908178020 & --52.633411290 & 17.629 & 18.386 & 0.796 & 1.435 & 70.848 & 0.27310 & 0.30 & 6.7 & -- & n & y & n & y \\ 05435\_3 & 49~849 &EW& 254.560369896 & --52.682548310 & 17.831 & 18.476 & 1.525 & 1.149 & 70.773 & 0.37428 & 0.19 & 7.8 & -- & y & n & y & n \\ 02366\_2 & 24~892 &EW& 254.828122494 & --52.786876736 & 17.069 & 17.982 & 0.524 & 1.258 & 70.594 & 0.36350 & 0.31 & 5.2 & 35 & n & y & n & n \\ 09914\_1 & 7211 &EW& 254.964750204 & --52.662654779 & 17.972 & 18.661 & 1.247 & 1.147 & 70.582 & 0.28650 & 0.17 & 7.6 & -- & y & n & n & n \\ 17194\_2 & 36~595 &EW& 254.750496117 & --52.583899859 & 17.339 & 18.167 & 0.980 & 1.251 & 70.742 & 0.29400 & 0.28 & 7.5 & -- & n & y & n & n \\ 26552\_1 & -- &EW& 254.883268519 & --52.754444185 & 17.318 & 17.894 & 0.947 & 1.186 & 70.613 & 0.48143 & 0.02 & 4.9 & -- & n & y & n & n \\ \multicolumn{14}{c}{Detached and semi-detached systems}\\ 26902\_2 & 44~079 &RS CVn& 254.760879590 & --52.738914968 & 14.599 & 15.081 & 0.843 & 1.024 & 72.090 & 2.1805 & 0.05 & 1.9 & 90 \\ 25070\_2 & -- &RS CVn& 254.813983216 & --52.738528086 & 18.513 & 19.219 & --- & 1.540 & 71.953 & 1.4553 & 0.06 & 2.4 & --- \\ 09161\_2 & 30~259 &EA & 254.800143085 & --52.691547335 & 19.384 & 20.527 & 2.125 & 2.367 & 70.859 & 0.50611 & 0.69 & 1.5 & --- \\ 17502\_2 & 36~826 &EA & 254.750395425 & --52.579915829 & 20.927 & 22.030 & --- & 2.596 & 70.855 & 0.54690 & 0.44 & 7.7 & --- \\ 10340\_2 & 31~195 &EA & 254.706854237 & --52.676396811 & 15.894 & 16.397 & 0.920 & 1.103 & 72.051 & 1.8156 & 0.02 & 3.0 & 38 \\ 06539\_2 & 28~209 &EA & 254.653146758 & --52.728429918 & 17.968 & 18.775 & 1.126 & 1.477 & 70.727 & 0.68230 & 0.19 & 4.4 & --- \\ 13573\_2 & 33~743 &EA & 254.812702563 & --52.633378426 & 16.518 & 17.003 & 0.873 & 1.027 & 71.039 & 2.3016 & 0.34 & 4.7 & 8 \\ 00145\_2 & 23~102 &EB & 254.732762682 & --52.818849796 & 16.494 & 17.223 & 1.228 & 1.198 & 70.676 & 0.29110 & 0.26 & 6.8 & 0 \\ 08123\_2 & 29~437 &EB & 254.789360265 & --52.705813364 & 19.884 & 20.992 & 1.385 & 2.252 & 70.883 & 0.31903 & 0.15 & 0.7 & --- \\ \hline \end{tabular} \vspace*{3mm} \caption{\label{tab_rot_n6253}List of rotational and long-period variables located at less than~8\arcmin\ from the centre which are considered to be candidate cluster members.} \par %\centering \small \begin{tabular}{lrl ll cccc clcc r } \hline \hline \noalign{\smallskip} \multicolumn{1}{c}{Star}& \multicolumn{1}{c}{ID} & \multicolumn{1}{c}{Type}& \multicolumn{1}{c}{$\alpha_{2000}$}& \multicolumn{1}{c}{$\delta_{2000}$}& \multicolumn{1}{c}{\ovr}& \multicolumn{1}{c}{\ovv}& \multicolumn{1}{c}{\ovbv}& \multicolumn{1}{c}{\ovvi}& \multicolumn{1}{c}{$T_{\rm max}$}& \multicolumn{1}{c}{Period}& \multicolumn{1}{c}{Ampl.}& \multicolumn{1}{c}{Distance}& \multicolumn{1}{l}{MP} \\ && &\multicolumn{1}{c}{[deg]} &\multicolumn{1}{c}{[deg]} &\multicolumn{1}{c}{[mag]} &\multicolumn{1}{c}{[mag]} &\multicolumn{1}{c}{[mag]} &\multicolumn{1}{c}{[mag]} &\multicolumn{1}{c}{[HJD]} &\multicolumn{1}{c}{[d]} &\multicolumn{1}{c}{[$R$ mag]} &\multicolumn{1}{c}{[arcmin]} &\multicolumn{1}{c}{\%}\\ \hline 09901\_2 & 30~842 & RO1 & 254.732275735 & --52.681556393 & 17.619 & 18.247 & 1.038 & 1.351 & 72.668 & 1.11842 & 0.08 & 2.1 & --- \\ 11977\_1 & 8713 & RO1 & 254.929865891 & --52.630746475 & 16.185 & 16.592 & 0.749 & 0.849 & 71.188 & 1.8424 & 0.01 & 7.4 & --- \\ 07392\_1 & 5378 & RO1 & 254.904680899 & --52.702647524 & 17.641 & 18.217 & 1.040 & 1.195 & 70.914 & 2.982 & 0.11 & 4.9 & --- \\ 14911\_2 & 34~814 & RO1 & 254.721536966 & --52.615435459 & 17.702 & 18.299 & 1.053 & 1.212 & 70.902 & 1.5806 & 0.05 & 5.9 & 63 \\ 10372\_2 & 31~220 & RO1 & 254.679930555 & --52.675735040 & 17.650 & 18.317 & 1.080 & 1.456 & 72.957 & 2.735 & 0.04 & 3.8 & 26 \\ 15993\_2 & 35~676 & RO1 & 254.846280438 & --52.600497324 & 18.851 & 19.741 & 1.462 & 1.844 & 71.766 & 3.151 & 0.03 & 7.0 & --- \\ 10042\_2 & 30~960 & RO1 & 254.772538141 & --52.679593806 & 15.946 & 16.379 & 0.872 & 1.029 & 71.445 & 3.134 & 0.07 & 1.7 & 87 \\ 11077\_2 & 31~786 & RO1 & 254.861672278 & --52.666238861 & 16.725 & 17.281 & 0.978 & 1.194 & 70.801 & 5.12 & 0.06 & 4.2 & 71 \\ 06236\_1 & 4548 & RO1 & 254.893544476 & --52.721902773 & 16.148 & 16.614 & 0.865 & 0.972 & 72.207 & 1.7453 & 0.01 & 4.5 & --- \\ 06932\_2 & 28~498 & RO1 & 254.812770851 & --52.722474381 & 17.550 & 18.151 & 1.072 & 1.347 & 70.688 & 0.90140 & 0.05 & 1.7 & 10 \\ 09775\_2 & 30~740 & RO1 & 254.850965423 & --52.683323748 & 17.484 & 18.182 & 1.118 & 1.482 & 72.156 & 2.1351 & 0.02 & 3.3 & 64 \\ 04913\_3 & 49~473 & RO1 & 254.567369728 & --52.735127801 & 17.894 & 18.513 & 1.035 & 1.240 & 71.395 & 1.10089 & 0.04 & 7.6 & --- \\ 00455\_2 & 23~352 & RO1 & 254.786845032 & --52.814066276 & 19.023 & 19.914 & 1.496 & 1.862 & 70.949 & 1.21222 & 0.07 & 6.4 & --- \\ 22278\_2 & 40~654 & RO1 & 254.649579305 & --52.665822056 & 19.457 & 20.440 & 1.604 & 2.026 & 70.988 & 0.86412 & 0.07 & 5.1 & --- \\ 06387\_2 & 28~088 & RO2 & 254.793146373 & --52.730407627 & 15.970 & 16.476 & 0.937 & 1.130 & 71.191 & 0.92213 & 0.02 & 1.6 & 85 \\ 02131\_1 & 1588 & RO2 & 254.946929133 & --52.786367467 & 19.053 & 20.007 & 1.239 & 1.889 & 71.059 & 1.8307 & 0.16 & 7.9 & --- \\ 15877\_2 & --- & Erupt.& 254.703470476 & --52.602380112 & 23.035 & --- & --- & --- & --- & --- & 3.0: & 6.8 & --- \\ 07619\_2 & 29~043 & LON & 254.811684961 & --52.712570710 & 17.009 & 17.559 & 0.960 & 1.147 & --- & --- & 0.02 & 1.5 & 7 \\ 12230\_2 & 32~699 & LON & 254.815958044 & --52.651011235 & 17.029 & 17.748 & 1.192 & 1.463 & --- & --- & 0.07 & 3.8 & 4 \\ 05077\_2 & 27~059 & LON & 254.688821000 & --52.748940203 & 18.568 & 19.331 & 1.288 & 1.661 & --- & --- & 0.11 & 3.8 & 8 \\ 11785\_3 & 55~053 & LON & 254.627601281 & --52.719312463 & 16.004 & 16.539 & 0.892 & 1.031 & --- & --- & 0.01 & 5.2 & --- \\ 13846\_2 & 33~961 & LON & 254.709665037 & --52.629843248 & 17.590 & 18.207 & 1.312 & 1.447 & --- & --- & 0.09 & 5.2 & 39 \\ 14735\_2 & 34~670 & LON & 254.747409696 & --52.617616901 & 17.577 & 18.396 & 1.286 & 1.708 & --- & --- & 0.08 & 5.5 & 55 \\ 09250\_3 & 52~908 & LON & 254.622067452 & --52.721515269 & 18.533 & 19.357 & 1.222 & 1.604 & --- & --- & 0.10 & 5.5 & --- \\ 15240\_2 & 35~074 & LON & 254.740026868 & --52.611151405 & 16.008 & 16.576 & 0.926 & 1.199 & --- & --- & 0.05 & 5.9 & 6 \\ 00690\_2 & 23~539 & LON & 254.688379093 & --52.810472274 & 17.482 & 18.024 & 0.942 & 1.127 & --- & --- & 0.03 & 6.8 & --- \\ 11608\_1 & 8447 & LON & 254.917947764 & --52.636605888 & 17.854 & 18.534 & 1.122 & 1.376 & --- & --- & 0.02 & 6.9 & --- \\ 23368\_1 & 16~649 & LON & 254.892499238 & --52.618200382 & 15.549 & 16.040 & 0.856 & 1.000 & --- & --- & 0.01 & 7.0 & --- \\ 11777\_1 & 8568 & LON & 254.921940390 & --52.633881686 & 17.234 & 17.765 & 0.989 & 1.090 & --- & --- & 0.02 & 7.1 & --- \\ 13344\_1 & 9747 & LON & 254.880051821 & --52.608379595 & 15.602 & 16.076 & 0.860 & 0.961 & --- & --- & 0.01 & 7.2 & --- \\ 07644\_3 & 51~551 & LON & 254.601869594 & --52.646720559 & 16.818 & 17.437 & 0.947 & 1.196 & --- & --- & 0.02 & 7.2 & --- \\ 10299\_3 & 53~801 & LON & 254.619740373 & --52.629216703 & 17.646 & 18.376 & 0.997 & 1.390 & --- & --- & 0.05 & 7.3 & --- \\ 17201\_2 & 36~599 & LON & 254.732771506 & --52.583879199 & 18.757 & 19.465 & 1.250 & 1.516 & --- & --- & 0.08 & 7.6 & --- \\ \hline \end{tabular} \end{table}