Here's that map with its crudely separated section. But what's this? Why have I rotated it? As far as I can tell there is absolutely no information about the orientation of the map, so here it is in an arbitrary orientation. I suppose a whole-sky image might have revealed the direction of the sun (30 degrees above the horizon), but we don't have one. Shadows don't tell us anything, they are all just under rocks, not to one side. There's a lot we don't know.
#venus #venera9