PETIN M.I.
The PETIN -
METON calendar
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The accuracy of the PETIN-METON Calendar
1. Common data
Any calendars are characterized by misalignments of calendar
solar and lunar cycles concerning natural cycles.
The time interval between the settlement (natural) moment of a presence
(finding) of a heavenly body centre (the Sun or the Moon) on Greenwich meridian
of the observer in 12.00 (midday) and the actual moment of arrival of the
heavenly body centre in the given point refers to as a misalignment.
The value of the misalignment (accuracy of a calendar) allows to compare calendars. The calendar with minimum range of
misalignments during the long period of time is considered the best in the
given parameter.
For compensation of misalignments in the
PETIN-METON calendar are used the n leap cycles distinguished from the Meton simple cycles on size -1 day.
The tn cycle
duration accepted in calculations is equal to:
for:
- a
solar cycle:
- natural (main)
- 365,242195 x 19 = 6939,6017 days;
- calendar
Meton simple - 6940 days;
- calendar
Meton leap - 6939 days.
- a
lunar cycle:
- natural
(main) - 29,5305885 x 235 = 6939,6883 days;
- calendar
Meton simple - 6940 days;
- calendar
Meton leap - 6939 days.
The value of misalignments between
calendar Meton simple and natural cycles is
accordingly equal to: for:
- a
solar cycle: -0,3983 day;
- a
lunar cycle: -0,3117 day.
In the PETIN-METON calendar the methods of compensation of the calendar
solar cycles drift are similar to the compensation
methods used in the Gregorian solar calendar. Further only methods of
compensation of calendar lunar cycles drift are considered.
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