Conversion number between year (Gregorian) [a, y, or yr] and octaeteris is 0.12499743326489. This means, that year (Gregorian) is smaller unit than octaeteris.
Switch to reverse conversion:
from octaeteris to year (Gregorian) conversion
| [a, y, or yr] |
Result in octaeteris
?If conversion between year (Gregorian) to second and second to octaeteris is exactly definied, high precision conversion from year (Gregorian) to octaeteris is enabled.
Decimal places: (0-800)
year (Gregorian)| Start value: | [year (Gregorian)] |
| Step size | [year (Gregorian)] |
| How many lines? | (max 100) |
| year (Gregorian) | octaeteris |
|---|---|
| 0 | 0 |
| 10 | 1.2499743326489 |
| 20 | 2.4999486652977 |
| 30 | 3.7499229979466 |
| 40 | 4.9998973305955 |
| 50 | 6.2498716632444 |
| 60 | 7.4998459958932 |
| 70 | 8.7498203285421 |
| 80 | 9.999794661191 |
| 90 | 11.24976899384 |
| 100 | 12.499743326489 |
| 110 | 13.749717659138 |
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.
Definition of octaeteris unit: = 2922 d. In astronomy, an octaeteris is the period of eight solar years after which the moon phase occurs on the same day of the year plus one or two days. = 48 mo (full) + 48 mo (hollow) + 3 mo (full) = 8 a of 365.25 d = 2922 d = 252.4608 Ms
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