Distribution of the M 83 subgroup in supergalactic coordinates, centered at M 83. Data taken from to the LV catalog. The big black dot is M 83, the small dots are dwarf galaxies. Top: satellites within the virial radius (210 kpc) are connected to M 83 with a thin black line. The dwarfs are projected onto the galactic plane (SGX–SGY plane). The position of the two confirmed dwarf galaxies (red triangles) is indicated with the gray dashed line. The position of KK208 is color-coded in blue. The black dashed line corresponds to our line-of-sight to M 83. Bottom: the projections onto the SGX–SGY, SGZ–SGY, and SGX–SGZ planes, respectively, together with their 5% distance uncertainty (dashed lines).