Tag Archives: calendar

another thought that I’m never likely to have occasion to apply

Posted on Monday, 2011 January 31 by Anton

If one has the luxury of designing a calendar from scratch, it might be good to put leap day at aphelion, where its angular value is least.

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what could be simpler?

Posted on Wednesday, 2009 February 25 by Anton

I got yet another wacky idea for a Martian calendar. Start with 24 months of 28 days each. Drop one day from every seventh month (so that a given month is short in one year out of seven), and add … Continue reading →

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Martian months

Posted on Monday, 2008 September 22 by Anton

Most proposed calendars for Mars have 24 months, and various systems have been offered to name them. Here’s one more: use the names of the 24 brightest stars, in order of longitude right ascension (relative to the rotation axis of … Continue reading →

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to balance a calendar

Posted on Wednesday, 2008 May 07 by Anton

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 … Continue reading →

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happy leap day

Posted on Friday, 2008 February 29 by Anton

If I were Pope Gregory’s advisor, I’d urge this: all months to have 30 days until the first (or last) of some month falls on a solstice or equinox; thereafter, alternate 30, 31, 30, 31, 30, 31, 30, 31, 30, … Continue reading →

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to everything there is a season

Posted on Saturday, 2002 May 18 by Anton

A little-appreciated advantage of the French Republican calendar: only three months have no R.

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