Not sure where u are getting your info:
"Venus held a particular attraction for the Mayans. It was considered to be connected with the major deity Quetzalcoatl. It was called Xux Ek, the "Great Star," and the Mayans knew that it is the same object that appears in both the morning and the evening at different times of the year. The priest-astronomers determined the synodic period of Venus (how long it takes to orbit the sun) to be 584 days, which is again incredibly close to the actual period of 583.92 days. When Venus rose in the mornings, it was considered bad luck, and everyone would stay inside their homes and block their chimneys so that the evil light from Venus could not enter. The Mayans also calculated the synodic periods of Mars as 780 days (actual = 779.936 days) and Mercury as 117 days (actual = 116 days), but they seemed uninterested in Jupiter and Saturn, the other bright planets. None of the planets were actually seen as objects different from the rest of the stars, which is unusual considering that they move significantly in relation to the fixed stars."
