There. Done. The python program can be easily changed for different-sized disks or different solar altitudes. That is, any flat earth model that vaguely resembles the Rowbotham one can be accommodated. So, there you go, flat-earthers: here are the geometrical consequences of the most popular flat earth model.
This picture makes many predictions. Many of those predictions are easy to measure. And yet, flat-earthers never measure them.
Yes, HST is a rainbow machine.
J. K. Rowling drew upon star lore to name some of her characters, and this seems like a great excuse to talk about a few of the sky's wonders.
Ultima Thule is the first known "contact binary" small body in the solar system.
KM dwarfs are excellent places to search for life. The minute we build starships, we should stuff a few geo-astro-biologists on board and find out more.
... sorting truth from fiction takes mental work and time. Learning will occur.
"Spectroscopy," I might answer.
"Huh?" one might reasonably reply.
Guy Worthey 