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- Meton_of_Athens abstract "Meton of Athens (Greek: Μέτων ὁ Ἀθηναῖος; gen.: Μέτωνος) was a Greek mathematician, astronomer, geometer, and engineer who lived in Athens in the 5th century BC. He is best known for calculations involving the eponymous 19-year Metonic cycle which he introduced in 432 BC into the lunisolar Attic calendar.The metonic calendar assumes that 19 solar years are equal to 235 lunar months, which is, in turn equal to 6940 days. This system was based on calculations made by Meton using his own observations of the summer solstice in 432 BC, and an observation made by Aristarchus 152 years later. Meton's observations were made in collaboration with Euctemon about whom nothing else is known.The Greek astronomer Callippus continued the work of Meton, proposing the Callippic cycle. The Callippic cycle is 76 years long—approximately 4 times longer than the Metonic cycle, with one less solar day in the full cycle. Ironically, whereas the Metonic cycle overestimates the length of a solar year by 5 minutes, the Callippic cycle underestimates the length of a solar year by 11 minutes, and therefore produces results that are less accurate than those produced using the Metonic cycle.The world's oldest known astronomical calculator, the Antikythera Mechanism (2nd century BC), performs calculations based on both the Metonic, and Callipic calendar cycles, with separate dials for each.The foundations of Meton's observatory in Athens are still visible just behind the podium of the Pnyx, the ancient parliament. Meton found the dates of equinoxes and solstices by observing sunrise from his observatory. The bisectrice of the observatory lies in an easterly direction, between the Acropolis and the Lycabetus hill.Meton appears briefly as a character in Aristophanes' play The Birds (414 BC). He comes on stage carrying surveying instruments and is described as a geometer.What little is known of Meton come through ancient historians. According to Ptolemy, a stella or table erected in Athens contained a record of Meton's observations, and a description of the Metonic cycle. None of Meton's works survive.".
- Meton_of_Athens wikiPageExternalLink Greek_astronomy.html.
- Meton_of_Athens wikiPageExternalLink 69.html.
- Meton_of_Athens wikiPageID "1795295".
- Meton_of_Athens wikiPageRevisionID "579960624".
- Meton_of_Athens hasPhotoCollection Meton_of_Athens.
- Meton_of_Athens subject Category:5th-century_BC_Greek_people.
- Meton_of_Athens subject Category:Ancient_Athenians.
- Meton_of_Athens subject Category:Ancient_Greek_astronomers.
- Meton_of_Athens subject Category:Ancient_Greek_engineers.
- Meton_of_Athens subject Category:Ancient_Greek_mathematicians.
- Meton_of_Athens type 5th-centuryBCGreekPeople.
- Meton_of_Athens type AncientGreekAstronomers.
- Meton_of_Athens type AncientGreekEngineers.
- Meton_of_Athens type AncientGreekMathematicians.
- Meton_of_Athens type Astronomer109818343.
- Meton_of_Athens type CausalAgent100007347.
- Meton_of_Athens type Engineer109615807.
- Meton_of_Athens type LivingThing100004258.
- Meton_of_Athens type Mathematician110301261.
- Meton_of_Athens type Object100002684.
- Meton_of_Athens type Organism100004475.
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- Meton_of_Athens type Physicist110428004.
- Meton_of_Athens type Scientist110560637.
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- Meton_of_Athens type YagoLegalActor.
- Meton_of_Athens type YagoLegalActorGeo.
- Meton_of_Athens comment "Meton of Athens (Greek: Μέτων ὁ Ἀθηναῖος; gen.: Μέτωνος) was a Greek mathematician, astronomer, geometer, and engineer who lived in Athens in the 5th century BC. He is best known for calculations involving the eponymous 19-year Metonic cycle which he introduced in 432 BC into the lunisolar Attic calendar.The metonic calendar assumes that 19 solar years are equal to 235 lunar months, which is, in turn equal to 6940 days.".
- Meton_of_Athens label "Meton of Athens".
- Meton_of_Athens label "Meton van Athene".
- Meton_of_Athens label "Meton z Aten".
- Meton_of_Athens label "Meton".
- Meton_of_Athens label "Meton".
- Meton_of_Athens label "Metone di Atene".
- Meton_of_Athens label "Metón".
- Meton_of_Athens label "Méton".
- Meton_of_Athens label "Метон Афинский".
- Meton_of_Athens label "メトン".
- Meton_of_Athens label "默冬".
- Meton_of_Athens sameAs Meton.
- Meton_of_Athens sameAs Μέτων_ο_Αθηναίος.
- Meton_of_Athens sameAs Metón.
- Meton_of_Athens sameAs Méton.
- Meton_of_Athens sameAs Metone_di_Atene.
- Meton_of_Athens sameAs メトン.
- Meton_of_Athens sameAs Meton_van_Athene.
- Meton_of_Athens sameAs Meton_z_Aten.
- Meton_of_Athens sameAs Meton.
- Meton_of_Athens sameAs m.05xmn2.
- Meton_of_Athens sameAs Q261909.
- Meton_of_Athens sameAs Q261909.
- Meton_of_Athens sameAs Meton_of_Athens.
- Meton_of_Athens wasDerivedFrom Meton_of_Athens?oldid=579960624.
- Meton_of_Athens isPrimaryTopicOf Meton_of_Athens.