Metonic cycle

The rest so far are assumed from knowledge of the Metonic cycle itself.

The Metonic cycle's error is then one full day every 219 years, or 12.4 parts per million.

The Metonic cycle has 19 tropical years and 235 synodic months in 6940 days.

Instead, they employ their versions of the Metonic cycle.

The lunar year (354 days) and Metonic cycles (19 years) are short period last only 8 to 10 events.

It is a period of 76 years, as an improvement of the 19-year Metonic cycle.

A leap month was added seven times in a nineteen-year Metonic cycle.

The synodic month is used in the Metonic cycle.

It is the third of five Metonic cycle eclipses, each being separated by 19 years:

The leap years are years 3, 6, 8, 11, 14, 17, and 19 of the Metonic cycle.

First, one must determine whether each year is an ordinary or leap year by its position in the 19-year Metonic cycle.

The Metonic cycle is related to two less accurate subcycles:

However, unlike Hindu calendar, it also uses a 19-year Metonic cycle.

A Metonic cycle equates to 235 lunar months in each 19-year cycle.

On the outer ring, the hand points to the golden number, or the number of the current year in the metonic cycle.

Nineteen tropical years are as long as 235 synodic months (Metonic cycle).

It will be the last of 5 Metonic cycle eclipses occurring every 19 years on October 28th.

The extra days accumulate, so every two or three years (7 times in the 19-year Metonic cycle), there is an extra full moon.

The epacts for the current (2009) Metonic cycle are:

It is similar to, but slightly different in usage with, the Greek Metonic Cycle.

According to the Metonic cycle, this is done seven times every nineteen years (specifically, in years 3, 6, 8, 11, 14, 17, and 19).

The remainder, if tallies with the set sequence number of the prevailing Metonic cycle, then it will be an intercalary year.

441 hollow months and 499 full months; thus 4 Metonic Cycles minus one day or precisely 76 years of 365 days.

The fixed Metonic cycle remained in place in Siam.

This eclipse is the first of four Metonic cycle lunar eclipses on the same date, May 15-16, each separated by 19 years.