individual distances of the stars in the four sub-groups. There is a clear trend in distance from A0 as closest from the Sun to the largest sub-group C as farthest. Altogether, the whole CMG, including the Intergroup members, extends from 102 to 135 pc from the sun (10 and 90% percentiles of the parallax distribution). The sub-groups A0 to C are more compact.

The characteristic data for these groups are given in Table\[TabGroups\], while the data for individual members available in electronic format are described in Table\[memtable\]. The spatial coordinates of the centers of the four subgroups are the means of the individual $X,Y,Z$ of the $N_{\rm Stars}$ in each subgroup. The space velocities $U,V,W$ of the groups are the averages of the individual velocities of those stars that have reliable radial velocity measurements [in [[*Gaia*]{}]{} DR2]{}. [[In Table \[TabGroups\] we give the standard deviations for the velocities, not the mean errors of the mean velocities. These are much more accurate and range from 0.06 to 0.50 $\rm km\,s^{-1}$ with a median of 0.2 $\rm km\,s^{-1}$.]{}]{}

  ---- ----- ---- ---- ----- --- ----- --- ------- ----- ------- ----- ------ ----- ------- ------ -----
                                                                                                   
                                                                                                   
   A0     49   52 3      -88 5     -17 