Conversion number between Hipparchic cycle and year (Gregorian) [a, y, or yr] is 304.00350452097. This means, that Hipparchic cycle is bigger unit than year (Gregorian).
Switch to reverse conversion:
from year (Gregorian) to Hipparchic cycle conversion
| Hipparchic cycle |
Result in year (Gregorian)
?If conversion between Hipparchic cycle to second and second to year (Gregorian) is exactly definied, high precision conversion from Hipparchic cycle to year (Gregorian) is enabled.
Decimal places: (0-800)
Hipparchic cycle| Start value: | [Hipparchic cycle] |
| Step size | [Hipparchic cycle] |
| How many lines? | (max 100) |
| Hipparchic cycle | year (Gregorian) |
|---|---|
| 0 | 0 |
| 10 | 3040.0350452097 |
| 20 | 6080.0700904194 |
| 30 | 9120.1051356291 |
| 40 | 12160.140180839 |
| 50 | 15200.175226048 |
| 60 | 18240.210271258 |
| 70 | 21280.245316468 |
| 80 | 24320.280361678 |
| 90 | 27360.315406887 |
| 100 | 30400.350452097 |
| 110 | 33440.385497307 |
Definition of Hipparchic cycle unit: ≡ 4 Callippic cycles - 1 d. A lunar cycle noticed by Hipparchus. Eric Weisstein's World of Biography It consists of four Callipic cycles less a day, in which (4 × 27759 - 1) days are very nearly 3760 months, ≡ 9.593424 Gs
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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