ASTRONOMICAL PERIODS Crossword Clue

We know 2 solutions for: ASTRONOMICAL PERIODS
Crossword Puzzle Infos
Astronomical periods are units of time used to measure the length of time for astronomical events. The two most commonly used astronomical periods are EONS and years. An eon is a very long period of time, usually lasting billions of years, while a year is a much shorter period of time, usually lasting 365 days.
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