Conversion number between Metonic cycle; enneadecaeteris and year (Gregorian) [a, y, or yr] is 19.0010746285. This means, that Metonic cycle; enneadecaeteris is bigger unit than year (Gregorian).
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from year (Gregorian) to Metonic cycle; enneadecaeteris conversion
| Metonic cycle; enneadecaeteris |
Result in year (Gregorian)
?If conversion between Metonic cycle; enneadecaeteris to second and second to year (Gregorian) is exactly definied, high precision conversion from Metonic cycle; enneadecaeteris to year (Gregorian) is enabled.
Decimal places: (0-800)
Metonic cycle; enneadecaeteris| Start value: | [Metonic cycle; enneadecaeteris] |
| Step size | [Metonic cycle; enneadecaeteris] |
| How many lines? | (max 100) |
| Metonic cycle; enneadecaeteris | year (Gregorian) |
|---|---|
| 0 | 0 |
| 10 | 190.010746285 |
| 20 | 380.02149257 |
| 30 | 570.03223885501 |
| 40 | 760.04298514001 |
| 50 | 950.05373142501 |
| 60 | 1140.06447771 |
| 70 | 1330.075223995 |
| 80 | 1520.08597028 |
| 90 | 1710.096716565 |
| 100 | 1900.10746285 |
| 110 | 2090.118209135 |
Definition of Metonic cycle; enneadecaeteris unit: ≡ 6940 d. For astronomy and calendar studies, the Metonic cycle or Enneadecaeteris is a period of very close to 19 years that is nearly a common multiple of the solar year and the synodic month. ≡ 110 mo (hollow) + 125 mo (full) = 6940 d ≈ 19 a = 599.616 Ms
Definition of year (Gregorian) unit: = 365.2425 d average. As the common year has 365 days, the Gregorian calendar with leap years compensate the deviation from the real, astronomical year. According to this calendar, every 4th year is a leap year, except for every 100th. But every 400th is a leap year. This means that there are 97 leap years in 400 year period. So according to Gregorian's calendar, one year has 365 + 97/400 days (average). This is not a perfect approach, but in 1000 year period, the defiation is only 0.3 days compared to the astronomical year. In the year 1582 Gregorian replaced the Julian calendar.
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