Metonic cycle - Wikipedia
网页The Metonic cycle is the most accurate cycle of time (in a timespan of less than 100 years) for synchronizing the tropical year and the lunar month (synodic month), when the method of synchronizing is the intercalation of a thirteenth lunar month in a calendar year from time to time. [15]
Metonic cycle | Moon Phases, Lunar Year & Astronomy
网页Metonic cycle, in chronology, a period of 19 years in which there are 235 lunations, or synodic months, after which the Moon’s phases recur on the same days of the solar year, or year of the seasons. The cycle was discovered by …
Understanding the Metonic Cycle: The Lunisolar Logic of the …
网页The Metonic Cycle was developed by ancient astronomers and mathematicians and named after Meton of Athens. It sought to synchronize the solar and lunar calendars by reconciling the 19-year lunar cycle with the 365-day solar year, providing a more accurate and predictable calendar system.
Metonic cycle - Simple English Wikipedia, the free encyclopedia
网页The Metonic cycle is a period of about 19 years used in astronomy and calendar studies. In particular, it is often used in the structure of lunisolar calendars, because 19 solar years is almost exactly the same length of time as 235 lunar months.
Metonic Cycle - Astrocal
网页The METONIC CYCLE is the Moon’s 19 year cycle where the Moon returns to exactly the same place (at the same longitude and against the same constellation) in the sky with the same phase. An ordinary calendar is a solar (Sun) calendar.
Metonic cycle - Wikiwand
网页The Metonic cycle is the most accurate cycle of time (in a timespan of less than 100 years) for synchronizing the tropical year and the lunar month (synodic month), when the method of synchronizing is the intercalation of a thirteenth lunar month in a …
Metonic Cycle - Encyclopedia.com
网页2018年5月23日 · Metonic cycle a period of 19 years (235 lunar months), after which the new and full moons return to the same day of the year. It was the basis of the ancient Greek calendar, and is still used for calculating movable feasts such as Easter. It is named after Metōn, an Athenian astronomer of the 5th century bc.
The Athenian Calendar - World History Encyclopedia
网页2015年11月6日 · A Metonic Cycle errs one full day every 219 years. Athenians could then systematically and accurately align their two astronomical calendars (solar and lunar) using a formulaic method of 125 Full months (30 days) and 110 Hollow months (29 days), while also intercalating 7 years during the course of the cycle (235 = 19 × 12 + 7).
Decoding the ancient Greek astronomical calculator known as the ...
网页2006年11月1日 · The 76-year Callippic cycle is four Metonic cycles minus one day—and improves the accuracy of reconciling solar years with whole numbers of lunar months. The Saros is an eclipse repeat...
Metonic cycle - Oxford Reference
网页A period of 19 years after which the Moon's phases repeat on approximately the same calendar dates. The cycle was discovered by the ancient Greek astronomer Meton in the 5th century bc and is used in constructing lunisolar calendars. It occurs because there are almost exactly 235 synodic months (lunations) in 19 tropical years.
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