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May 21, 2024 · Ptolemy was an astronomer, mathematician, and geographer who lived during the 2nd century CE. He is known for his geocentric (Earth-centred) model of the universe. Search Britannica Click here to search
Sep 7, 2023 · Claudius Ptolemy (c. 100 to c. 170 CE) was an Alexandrian mathematician, astronomer, and geographer. His works survived antiquity and the Middle Ages intact, and his theories, particularly on a geocentric...
Learn about Claudius Ptolemy, the Roman-Greek astronomer who wrote the Almagest, a landmark work on astronomy. Discover his cosmology, trigonometry, planet model, and star catalogue.
Summary. Ptolemy was the most influential of Greek astronomers and geographers of his time. He propounded the geocentric theory of the solar system that prevailed for 1400 years. View six larger pictures.
Ptolemy , Latin Claudius Ptolemaeus, (born c. ad 100—died c. ad 170), Greek astronomer and mathematician. He worked principally in Alexandria. It is often difficult to determine which findings in his great astronomical book, the Almagest, are Ptolemy’s and which are Hipparchus ’s.
Claudius Ptolemy was a Greek mathematician, astronomer and geographer who lived in the Egyptian city of Alexandria while under the rule of the Roman Empire.
Jul 3, 2019 · He was a scientist and philosopher who lived in Alexandria, Egypt nearly 2,000 years ago. Not only was he an astronomer, but he also studied geography and used what he learned to make detailed maps of the known world. We know very little of Ptolemy's early life, including his birth and death dates.
