Table 2: External galaxy groups gravitationally influencing the LG dynamics.
Group l b d M Vr
name $^{\circ}$ $^{\circ}$ Mpc $10^{12} M_\odot$ km s-1
IC 342 138.2 10.6 3.30 12.6 171.0
Maffei 136.4 -0.4 3.50 6.3 152.0
Andromeda 121.2 -21.6 0.76 3.16 -123.0
Milky Way 0 0 0.0 2.2 0.0
M 81 142.1 40.9 3.7 1.6 130.0
Cen A 309.5 19.4 2.7 4.7 371.0
Sculptor 105.8 85.8 3.2 6.3 229.0
The radial velocity is referred to the centre of the MW. No correction for the motion of the Sun toward the Local Standard of Rest is applied because it falls below the accuracy adopted in this study. The uncertainties on the distances and radial velocities are omitted.

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