Wednesday, 2008 May 7, 21:47 — astronomy

to balance a calendar

A Martian year is 668.6 Martian days; that’s 3.4 less than 24×28. I asked myself, how should the short months be arranged for best ‘balance’? I ran all combinations and this is it:

The three big dots represent the missing days in short months; the small dot represents the sometimes-missing day in leap month; and the diamond, slightly left of center, is the center of gravity of the dots.

Then I thought, what if I were designing a calendar for a world where the number of days in a year is 5¼ off from a multiple of 12?

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