Cleostratus (ca. 520 BC; possibly 548 BC to 432 BC) was an astronomer of ancient Greece. He was a native of Tenedos, and the Chaldean astronomer Naburimannu may have been a contemporary of him. He is believed by some scholars to have introduced the zodiac (beginning with Aries and Sagittarius) and the solar calendar to Greece from Babylonia. Centuries: 7th century BC - 6th century BC - 5th century BC Decades: 570s BC - 560s BC - 550s BC - 540s BC - 530s BC - 520s BC - 510s BC - 500s BC - 490s BC - 480s BC - 470s BC Events 529 BC - Cambyses II succeeds his father Cyrus as ruler of Persia. ... Centuries: 7th century BC - 6th century BC - 5th century BC Decades: 590s BC - 580s BC - 570s BC - 560s BC - 550s BC - 540s BC - 530s BC - 520s BC - 510s BC - 500s BC - 490s BC Events and Trends 548 BC -- Croesus, Lydian king, defeated by Cyrus. ... Centuries: 6th century BC - 5th century BC - 4th century BC Decades: 480s BC 470s BC 460s BC 450s BC 440s BC - 430s BC - 420s BC 410s BC 400s BC 390s BC 380s BC Years: 437 BC 436 BC 435 BC 434 BC 433 BC 432 BC 431 BC 430 BC... An astronomer or astrophysicist is a person whose area of interest is astronomy or astrophysics. ... The Temple to Athena, the Parthenon Ancient Greece is a period in Greek history that lasted for around three thousand years. ... Gökçeada and Bozcaada are two islands in the Aegean Sea which are part of Canakkale Province in Turkey. ... Look up Chaldean in Wiktionary, the free dictionary. ... Nabu-ri-man-nu (also spelled Nabu-rimanni; Greek sources called him Nabourianos, Latin Naburianus) (fl. ... It has been suggested that this article be split into multiple articles. ... Aries (IPA: , Latin: , symbol , ) is one of the constellations of the zodiac. ... For other uses, see Sagittarius. ... A solar calendar is a calendar whose dates indicate the position of the earth on its revolution around the sun (or equivalently the apparent position of the sun moving on the celestial sphere). ... Babylonia was a state in the south part of Mesopotamia (in modern Iraq), combining the territories of Sumer and Akkad. ...

Censorinus (De Die Natali, c. 18) considers Cleostratus to have been the real inventor of the octaeteris, or cycle of eight years. The octaeteris was used before the Metonic cycle of 19 years, and was popularly attributed to Eudoxus. Theophrastus (de Sign. Pluv., p. 239, ed. Basil. 1541) mentions him as a meteorological observer along with Matricetas of Methymna and Phaeinus of Athens. Censorinus, Roman grammarian and miscellaneous writer, flourished during the 3rd century AD. He was the author of a lost work De Accentibus and of an extant treatise De Die Natali, written in 238, and dedicated to his patron Quintus Caerellius as a birthday gift. ... In astronomy, an octaeteris is the period of eight solar years after which the moon phase occurs on the same day of the year plus one or two days. ... The Metonic cycle or Enneadecaeteris in astronomy and calendar studies is a particular approximate common multiple of the year (specifically, the seasonal tropical year) and the synodic month. ... Eudoxus was the name of two ancient Greeks: Eudoxus of Cnidus (c. ... Theophrastus (Greek Θεόφραστος, 370 — about 285 BC), a native of Eressos in Lesbos, was the successor of Aristotle in the Peripatetic school. ... Events The first official translation of the entire Bible in Swedish February 12 - Pedro de Valdivia founds Santiago de Chile. ... In Greek mythology, Methymna was the daughter of Macar. ... Athens (Greek: Αθήνα - Athína) is the largest city and capital of Greece, located in the Attica periphery of central Greece. ...

Gaius Julius Hyginus (Poetica Astronomica, ii. 13) says that Cleostratus first pointed out the two stars in Auriga called Haedi. Gaius Julius Hyginus, (c. ... Auriga (IPA: , Latin: ) is a northern constellation. ... Haedi, (the Kids), is a classical and easily observed three-star asterism in the constellation of Auriga. ...

Cleostratus crater, on the Moon, is named after him. Cleostratus is a lunar crater near the northwest limb of the Moon. ... Apparent magnitude: up to -12. ...

Sources

• (English) Did Cleostratus introduce the Babylonian zodiac to Greece? (List of articles)
• (English) Dictionary of Greek and Roman Biography and Mythology