Empirical Earth · The Sky — Sun, Moon & Stars
The claim
“This interactive dome model shows a working flat Earth with sunrise, seasons, moon phases and eclipses.”
What is true
◆ Refutation The app is real and it does show those things.
What is measured
The model runs on the globe. Its own source code carries an Earth-Sun distance of 149,600,000 km and an Earth-Moon distance of 384,000 km, and its author has published a version where those heliocentric parameters can be edited: change any of them and the predictions break.
What would show this is wrong
a flat-Earth model that computes the positions of Sun, Moon and stars from flat-Earth geometry alone, with no ephemeris input, and predicts the ground track of a future solar eclipse to within a few kilometers.
Sources
This is one card from Empirical Earth, a free reference that states each flat-Earth claim at its strongest and then answers it with sourced measurements. Nothing is for sale and there are no advertisements.