The heliocentric model in universe developed by copernicus and galileo was considered heresy during their lives because it

It wasn't cosdered a heresy is common misconception, Galileo was trailed by adding theological argument to that and Coeprnicus was never calimed as heretci contrary his idea was very attratcive throy in his days during his life, claiming that Galileo wa striled becouse of heliocentrism is myth coined later as part of anti catholic propaganda