Convert megayear (ma) to metonic cycle (Enneadecaeteris)
Selected category: time.
Definition and details for megayear (ma):
Megayear is a time unit defined as exactly one million Julian years. (1Julian year=365.25 days)
Definition and details for metonic cycle (Enneadecaeteris):
The Metonic cycle or Enneadecaeteris, is a particular approximate common multiple of the tropical year and the synodic (lunar) month. The Greek astronomer Meton of Athens observed that a period of 19 tropical years is almost exactly equal to 235 synodic months, and rounded to full days counts 6940 days.