Re: 13 x 353 = 4589-year lunisolar cycle

Dear Calendar People:

The calendar mean year of the 13 x 353 = 4589-year cycle as described  
in my previous message is 259200/1344577 of a second (almost 1/5 of a  
second) shorter than a 293-year cycle having 71 leap days or 52 leap  
weeks.

-- Irv Bromberg, Toronto, Canada

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