So this raises the question, how far can fantasy light travel? What is the furthest distance we know it can apparently travel? Well it can come from projection central, up to the dome, reflect off the dome and reach us, so that is pretty far.
It is therefore logical that if you used a high altitude balloon, rocket, or plane, then you would massively reduce the distance the light is travelling, and you have the advantage of thinner atmosphere. So it should be reasonable to expect that you can see the central projector. You get up there and you can see for miles around the disc, but due north there is this massive glow in the earth. This has never happened, why?