[kijin]

The Ptolemaic model was not conclusively proven to be false until parallax was verified. Every discovery before parallax could be accommodated by some or other variation of the Ptolemaic model, and such variations did in fact proliferate in geocentrism's desperate final years.

Sure, the more random variations they came up with, the less credible the Ptolemaic model became. Occam's razor and whatnot. But the conclusive blow came much later than you might expect. Parallax was only verified in the 19th century, long after most scientists already gave up on geocentrism.