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Re: Lunisolar Cycle Multiples of Short Lunar Cycle

by Karl Palmen :: Rate this Message:

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Lunisolar Cycle Multiples of Short Lunar Cycle

Dear Calendar People

From: East Carolina University Calendar discussion List [mailto:CALNDR-L@...] On Behalf Of ELITE 3000
Sent: 15 May 2009 19:22
To: CALNDR-L@...
Subject: Re: Lunisolar Cycle Multiples of Short Lunar Cycle

But which cycles are the most accurate in terms of lunation period and mean year compared to the mean solar year (365.242 189 67 days (365 d 5 h 48 min 45 s)) and the mean lunation period (29.530589 days (29 d 12 h 44 min 2.9 s)) (correct me if I have the mean solar year/syndonic month slightly off)? This is a question that is meaningful only if you make the incorrect assumption that these values are constant. Why does he ask this question?

Karl

10(08(23 till noon

From: karl.palmen@...

Sent: Friday, May 15, 2009 11:52 AM

To: CALNDR-L@...

Subject: Lunisolar Cycle Multiples of Short Lunar Cycle

Dear Calendar People

Helios and I have found several lunisolar calendar cycles that are each a multiple of a lunar calendar cycle both short and accurate enough to appear in http://www.hermetic.ch/cal_stud/lunarcal/lunacycl.htm and are themselves less than 10,000 years long.

These are

3511 years of 45 lunar 965-month cycles with mean month of 29.530570 days and mean year of 365.24210 days (is based on Vij tithi).

5515 years of 39 lunar 1749-month cycles with mean month of 29.530589 days and mean year of 365.24225 days.

6251 years of 86 lunar 899-month cycles with mean month of 29.530590 days and mean year of 365.242204 days.

6707 years of 118 lunar 703-month cycles with mean month of 29.530583 days and mean year of 365.24228 days (19 353-year cycles).

Also worth mentioning is

16,700 years of 243 lunar 850-month cycles with a mean month of 29.530588 days and mean year of 365.24210 days (50 334-year cycles).

Karl

10(08(21

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