tropical year
Example Sentences
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The basic period of revolution of Earth, called the tropical year, is 365.2422 days.
From Textbooks • Oct. 13, 2016
The second feature of the new Gregorian calendar was a change in the rule for leap year, making the average length of the year more closely approximate the tropical year.
From Textbooks • Oct. 13, 2016
The true number of days in the mean tropical year actually varies slightly over time.
From Scientific American • Oct. 18, 2011
This rate is known as the mean tropical year.
From Scientific American • Oct. 18, 2011
This made three days taken off the 400 years, and in consequence the mean value of the civil year is reduced to 365·2425 days, which is not far from the true tropical year.
From Astronomical Myths Based on Flammarions's History of the Heavens by Blake, John F.