Perception of Depth


by Brian Koberlein | 31 August 2013 | post

This is a companion discussion topic for the original entry at


The use of parallax to perceive depth is interesting. You said using the earth’s rotation and getting two extreme points of view can generate the parallax. These would be observations six months apart. Perhaps in the astronomical scale and looking at depths of thousands of light years that does not matter. Are there space probes travelling in different directions farther than the earth’s orbital extents, that offer a view with a wider parallax? Do simultaneous real time views (in contrast with the 6 month time shifted views) make a difference to any study?