calippic

calippic is an   Adverb

Definition:

[1] Of or pertaining to Calippus, an Athenian astronomer. Calippic period, a period of seventy-six years, proposed by Calippus, as an improvement on the Metonic cycle, since the 6940 days of the Metonic cycle exceeded 19 years by about a quarter of a day, and exceeded 235 lunations by something more.

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