A period or series of events or numbers which recur everlastingly
in precisely the same order.
Cycle of the moon,
called “Meton's Cycle,” from Meton, who discovered it, is a period
of nineteen years, at the expiration of which time the phases of the
moon repeat themselves on the same days as they did nineteen years
Cycle of the sun.
A period of twenty-eight years, at the expiration of which time
the Sunday letters recur and proceed in the same order as they did
twenty-eight years previously. In other words, the days of the month
fall again on the same days of the week.
The Platonic cycle
or great year
is that space of time which elapses before all
the stars and constellations return to any given state. Tycho Brahët
calculated this period at 25,816 years, and Riccioli at 25,920.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
More on Cycle from Fact Monster:
- cycle - cycle cycle, in astronomy, period of time required for the recurrence of some celestial event. The ...
- Cycling - Cycling Event Individual Road Race (117 1/2 miles) Sergey Sukoruchenkov, URS 4:48.28 Czeslaw Lang, ...
- Cycling - Cycling Event Individual Road Race (108 3/4 miles) Viktor Kapitonov, URS 4:20:37.0 Livio Trape, ITA ...
- Cycling - Cycling Event Individual Road Race (108 3/4 miles) Bernt Johansson, SWE 4:46.52 Giuseppe ...
- Cycling - Cycling Event Time 660 yards Track Victor Johnson, GBR Emile Demangel, FRA Karl Neumer, GER 100 km ...