She is known to have edited and improved Ptolemy's Almagest, a foundational astronomical text that described the geocentric model of the universe and included methods for calculating celestial motions ...

It mentions the lunar model in which the Muslim astronomer uses epicycles to correct Ptolemy’s exaggerated ... Ibn al-Shatir’s treatise, though geocentric in intent, produced results so ...

He was the first to observe that not all celestial bodies orbited the Earth, as Ptolemy's geocentric model advocated, but rather that there were objects in the sky that did not follow this premise.

Aristarchus proposed this idea around the 3rd century BC. However, the Greek astronomer Ptolemy’s geocentric model dominated science for a millennium. Seleucus supported Aristarchus’ model and ...

Greek astronomer Claudius Ptolemy, who lived in Egypt, built upon Babylonian knowledge in his geocentric model of the universe. This model, which placed the Earth at the center of the universe, ...

The belief was that Earth was the center of the universe. Once again, it was Ptolemy that people were turning to. His geocentric model placed Earth squarely in the middle. And around us rotated ...

Their solar cycle calendar had 365 days and “still forms a model for the ... the universe was the geocentric Ptolemaic planetary system, created by the astronomer Ptolemy, positioning Earth ...

Great ancient scientists and philosophers, such as Pythagoras, Aristotle, and Ptolemy, were strong supporters of the geocentric theory ... Still, the heliocentric model was not widely accepted until ...

And they had noticed that Ptolemy's geocentric model of the universe, it wasn't matching the math. Over the next few decades, Copernicus calculated and recalculated and re-recalculated the heavens ...