great year

great year

noun Astronomy.

Origin:
1905–10

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Great year is always a great word to know.
So is Leo. Does it mean:
the Lion, a zodiacal constellation between Virgo and Cancer, containing the bright star Regulus
a system of two stars that revolve about a common center of mass
Dictionary.com Unabridged

Great Year

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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World English Dictionary
great year
 
n
one complete cycle of the precession of the equinoxes; about 25 800 years

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