This article is about ancient Greek astronomy. For pre-scientific cosmology in ancient Greece, see Early Greek cosmology. For the practice of astronomy in ancient Babylon, see Babylonian astronomy.
Astronomy as practiced in the Hellenistic world of classical antiquity
The Antikythera mechanism was an analog computer from 150–100 BCE designed to calculate the positions of astronomical objects.
Ancient Greek astronomy is the astronomy written in the Greek language during classical antiquity. Greek astronomy is understood to include the Ancient Greek, Hellenistic, Greco-Roman, and late antique eras. Ancient Greek astronomy can be divided into three primary phases: Classical Greek Astronomy, which encompassed the 5th and 4th centuries BC, and Hellenistic Astronomy, which encompasses the subsequent period until the formation of the Roman Empire ca. 30 BC, and finally Greco-Roman astronomy, which refers to the continuation of the tradition of Greek astronomy in the Roman world. During the Hellenistic era and onwards, Greek astronomy expanded beyond the geographic region of Greece as the Greek language had become the language of scholarship throughout the Hellenistic world, in large part delimited by the boundaries of the Macedonian Empire established by Alexander the Great. The most prominent and influential practitioner of Greek astronomy was Ptolemy, whose treatise Almagest shaped astronomical thinking until the modern era. Most of the most prominent constellations known today are taken from Greek astronomy, albeit via the terminology they took on in Latin.[1]
Greek astronomy was heavily influenced by Babylonian astronomy and, to a lesser extent, Egyptian astronomy. In later periods, ancient Greek astronomical works were translated and promulgated in other languages, most notably in Arabic by the astronomers and mathematicians within the various Arab-Muslim empires of the Middle Ages.[2]
^Thurston 2012, p. 2.
^Pingree 1973.
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