10 Facts About Greek astronomy

Greek astronomy is astronomy written in the Greek language in classical antiquity.

Greek astronomy is understood to include the Ancient Greek, Hellenistic, Greco-Roman, and Late Antiquity eras.

Greek astronomy is characterized by seeking a geometrical model for celestial phenomena.

Early Greek astronomy astronomers thought that the evening and morning appearances of Venus represented two different objects, calling it Hesperus when it appeared in the western evening sky and Phosphorus when it appeared in the eastern morning sky.

In classical Greece, Greek astronomy was a branch of mathematics; astronomers sought to create geometrical models that could imitate the appearances of celestial motions.

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Aratus's poem on Greek astronomy is based on a work of Eudoxus, and possibly Theodosius of Bithynia's Sphaerics.

Greek astronomy was the last innovative astronomer before Claudius Ptolemy, a mathematician who worked at Alexandria in Roman Egypt in the 2nd century.

The Almagest gave a comprehensive treatment of Greek astronomy, incorporating theorems, models, and observations from many previous mathematicians.

Greek astronomy worked at the museum, or instructional center, school and library of manuscripts in Alexandria.

Ptolemaic Greek astronomy became standard in medieval western European and Islamic Greek astronomy until it was displaced by Maraghan, heliocentric and Tychonic systems by the 16th century.