Bitruci was an important astronomer who lived in Andalusia. His work Kitâb fi’l-Hey’e is a very important text in terms of the history of Islamic science in terms of his criticisms of Ptolemy. In our study, information will be given about Bitruci and his work, and then the main basic concepts he used in his book will be discussed. His criticisms of cumulative knowledge and his contribution to the adoption of mathematical truths instead of assumptions in astronomy are emphasized. In this respect, the contributions of scientific developments pioneered by Andalusian philosophers to the beginning of the Renaissance in Western thought are briefly mentioned in the text. The contributions of Peripatetic philosophers up to Bitruci have also been mentioned. The necessity of an in-depth examination of his only work that has survived to the present day has encouraged us to conduct this research. It is very important to reveal Bitruci's view of the universe and to determine his criticisms and additions to Ptolemy. We would like to discuss the possibility of the universe model put forward by Bitrûcî being taken seriously by western scientists and philosophers and being used as one of the starting points of a serious cognitive, political and social revolution like the Renaissance. It can be evaluated that the article will constitute the conceptual structure of these discussions.