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  2. Early Greek cosmology - Wikipedia

    en.wikipedia.org/wiki/Early_Greek_cosmology

    Near the edges of the earth is a region inhabited by fantastical creatures, monsters, and quasi-human beings. [6] Once one reaches the ends of the earth they find it to be surrounded by and delimited by an ocean (), [7] [8] as is seen in the Babylonian Map of the World, although there is one main difference between the Babylonian and early Greek view: Oceanus is a river and so has an outer ...

  3. Ancient Greek astronomy - Wikipedia

    en.wikipedia.org/wiki/Ancient_Greek_astronomy

    Anaximander. The main features of Archaic Greek cosmology are shared with those found in ancient near eastern cosmology.They include (a flat) earth, a heaven (firmament) where the sun, moon, and stars are located, an outer ocean surrounding the inhabited human realm, and the netherworld (), the first three of which corresponded to the gods Ouranos, Gaia, and Oceanus (or Pontos).

  4. List of ancient Greek astronomers - Wikipedia

    en.wikipedia.org/wiki/List_of_ancient_Greek...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  5. Aristarchus of Samos - Wikipedia

    en.wikipedia.org/wiki/Aristarchus_of_Samos

    Aristarchus of Samos (/ ˌ æ r ə ˈ s t ɑːr k ə s /; Ancient Greek: Ἀρίσταρχος ὁ Σάμιος, Aristarkhos ho Samios; c. 310 – c. 230 BC) was an ancient Greek astronomer and mathematician who presented the first known heliocentric model that placed the Sun at the center of the universe, with the Earth revolving around the Sun once a year and rotating about its axis once a day.

  6. Planetae - Wikipedia

    en.wikipedia.org/wiki/Planetae

    According to Plutarch and Stobaeus, the term planeta was in use by the time of Anaximander, in the early sixth century BC. [1] The relative positions of the planets, which in the reckoning of Democritus included the Sun and Moon, was the subject of debate, as was their number; in Timaeus, Plato counts only the five still regarded as astronomical planets, excluding the Sun and Moon.

  7. Callippus - Wikipedia

    en.wikipedia.org/wiki/Callippus

    The Callippic cycle of 76 years appears to be used in the Antikythera mechanism, an ancient astronomical mechanical clock and observational aide of the 2nd century BC (discovered in Mediterranean waters off Greece). The mechanism has a dial for the Callippic cycle and the 76 years are mentioned in the Greek text of the manual of this old device.

  8. On Sizes and Distances (Hipparchus) - Wikipedia

    en.wikipedia.org/wiki/On_Sizes_and_Distances...

    On Sizes and Distances (of the Sun and Moon) (Greek: Περὶ μεγεθῶν καὶ ἀποστημάτων [ἡλίου καὶ σελήνης], romanized: Peri megethon kai apostematon) is a text by the ancient Greek astronomer Hipparchus (c. 190 – c. 120 BC) in which approximations are made for the radii of the Sun and the Moon as well as their distances from the Earth.

  9. Sosigenes (astronomer) - Wikipedia

    en.wikipedia.org/wiki/Sosigenes_(astronomer)

    Little is known about him apart from Pliny's Natural History.Sosigenes appears in Book 18, 210-212: ... There were three main schools, the Chaldaean, the Egyptian, and the Greek; and to these a fourth was added in our country by Caesar during his dictatorship, who with the assistance of the learned astronomer Sosigenes brought the separate years back into conformity with the course of the sun.