How did Copernicus's heliocentric proposal stand before Galileo's observations?

Answer

It remained a mathematical hypothesis lacking direct observational proof.

Prior to Galileo's work, Copernicus's Sun-centered proposal was a mathematical hypothesis that lacked the direct observational proof needed to sway the scientific consensus.

How did Copernicus's heliocentric proposal stand before Galileo's observations?
GalileoobservationMooncelestial bodyProof