Definition of Metonic cycle in English:

Metonic cycle

nounmɪˈtɒnɪkmeˌtänik ˈsīkəl

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.
默冬周，默东章（19年 235个阴历月的周期，此周期后，新月和满月重归同一天；是古希腊纪年法的基础，仍用于确定复活节等变动性节日）
Example sentencesExamples
- Astronomers call this 19-year period the Metonic cycle, after the mathematician Meton who lived in Athens in the fifth century B.C., although there is evidence that the Babylonians knew of the synchrony earlier.
- Under the Julian calendar, the phases of the moon and hence the dates of Easter repeated roughly every 19 years, a period known as the Metonic cycle after the Greek astronomer Meton.
- The present Jewish calendar uses the 19-year Metonic cycle made up of 12 common years and 7 leap years.
- In particular some used an 84-year cycle, consisting of 4 Metonic cycles plus an 8-year addition.
- The date of Easter, which is based on the Jewish festival of Passover, is still calculated using the Metonic cycle (via the golden number).

Origin

Named after Metōn, an Athenian astronomer of the 5th century bc.

Definition of Metonic cycle in US English:

Metonic cycle

nounmeˌtänik ˈsīkəl

A period of 19 years (235 lunar months), after which the new and full moons return to the same days of the year. It was the basis of the ancient Greek calendar and is still used for calculating movable feasts such as Easter.
默冬周，默东章（19年 235个阴历月的周期，此周期后，新月和满月重归同一天；是古希腊纪年法的基础，仍用于确定复活节等变动性节日）
Example sentencesExamples
- Astronomers call this 19-year period the Metonic cycle, after the mathematician Meton who lived in Athens in the fifth century B.C., although there is evidence that the Babylonians knew of the synchrony earlier.
- Under the Julian calendar, the phases of the moon and hence the dates of Easter repeated roughly every 19 years, a period known as the Metonic cycle after the Greek astronomer Meton.
- In particular some used an 84-year cycle, consisting of 4 Metonic cycles plus an 8-year addition.
- The date of Easter, which is based on the Jewish festival of Passover, is still calculated using the Metonic cycle (via the golden number).
- The present Jewish calendar uses the 19-year Metonic cycle made up of 12 common years and 7 leap years.

Origin

Named after Metōn, an Athenian astronomer of the 5th century BC.

词汇	Metonic cycle
释义	Definition of Metonic cycle in English: Metonic cycle nounmɪˈtɒnɪkmeˌtänik ˈsīkəl 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. 默冬周，默东章（19年 235个阴历月的周期，此周期后，新月和满月重归同一天；是古希腊纪年法的基础，仍用于确定复活节等变动性节日） Example sentencesExamples Astronomers call this 19-year period the Metonic cycle, after the mathematician Meton who lived in Athens in the fifth century B.C., although there is evidence that the Babylonians knew of the synchrony earlier. Under the Julian calendar, the phases of the moon and hence the dates of Easter repeated roughly every 19 years, a period known as the Metonic cycle after the Greek astronomer Meton. The present Jewish calendar uses the 19-year Metonic cycle made up of 12 common years and 7 leap years. In particular some used an 84-year cycle, consisting of 4 Metonic cycles plus an 8-year addition. The date of Easter, which is based on the Jewish festival of Passover, is still calculated using the Metonic cycle (via the golden number). Origin Named after Metōn, an Athenian astronomer of the 5th century bc. Definition of Metonic cycle in US English: Metonic cycle nounmeˌtänik ˈsīkəl A period of 19 years (235 lunar months), after which the new and full moons return to the same days of the year. It was the basis of the ancient Greek calendar and is still used for calculating movable feasts such as Easter. 默冬周，默东章（19年 235个阴历月的周期，此周期后，新月和满月重归同一天；是古希腊纪年法的基础，仍用于确定复活节等变动性节日） Example sentencesExamples Astronomers call this 19-year period the Metonic cycle, after the mathematician Meton who lived in Athens in the fifth century B.C., although there is evidence that the Babylonians knew of the synchrony earlier. Under the Julian calendar, the phases of the moon and hence the dates of Easter repeated roughly every 19 years, a period known as the Metonic cycle after the Greek astronomer Meton. In particular some used an 84-year cycle, consisting of 4 Metonic cycles plus an 8-year addition. The date of Easter, which is based on the Jewish festival of Passover, is still calculated using the Metonic cycle (via the golden number). The present Jewish calendar uses the 19-year Metonic cycle made up of 12 common years and 7 leap years. Origin Named after Metōn, an Athenian astronomer of the 5th century BC.
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