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**year ***-
The passage of the sun through the seasons. There are several years, such
as is given in the following table.
365.24218967 tropical repeats of seasons, eg midwinter 365.24675686 lunisolar 235/19 lunar months of 29.5305888531 days. 365.25636 siderial repeats of earth - sun - star lines 365.2594 anomistic repeats of perihelions

In these, a correction of 1/4 overstates the issue. One then proceeds to drop x leap years in y years, to get x/y.

In the following, the Gregorian calendar, and the Metonic cycle of 12 7/19 mo. is taken to be the base, for which one has to drop different days from years of the sun and the Metonic cycles.365.2416666 Twelfty 365 + 1/4 - 1/120 365.2421875 Binary 365 + 1/4 - 1/128 365.24218967 Nature the tropical year. 365.24222222 Russian 365 + 1/4 - 7/900 365.24242424 c1 365 + 8/33 365.24250000 Gregorian The calendar since 1752 = 365 + 1/4 - 3/400 365.24609375 Binary 365 + 1/4 - 1/256 = Epact every 256 years. 365.246600877 twelfty G Twelfty, with 3 Golden Jump in 960 years. 365.24675324 c1e 365 + 8/33 + 1/231 = 1 epact shift every 231 years. 365.24675686 Nature 12 7/19 months of 29.5305888531 days 365.246773959 c1g 365 8/33 + A/363, A=30/19 ; Golden jump every 363 yrs. 365.246800000 Gregorian E 8 Epact shifts in 25 centuries. 365.246875000 Twelfty E 3 epact shifts in 960 years. 365.25000000 Julian The calendar to 1752 = 365 + 1/4

C1 adds 8 leap years every 33 years.

calendars in e are epact shifts, in g are golden jumps.

© 2003-2004 Wendy Krieger