This is a sketch of a perspective layout. It shows spatial relations including where the true horizon line is versus the Mars horizon line.
ردمك
While it is unknown exactly which of Chesley Bonestell's paintings this sketch led to, we do know it had something to do with one of his paintings of Mars.
مادة
"true H" and "mars H"
"4 miles base line" "11 mles @ 30" "Perspective layout"