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

This rate is known as the mean tropical year.

From Scientific American • Oct. 18, 2011

The true number of days in the mean tropical year actually varies slightly over time.

From Scientific American • Oct. 18, 2011

The scheme itself denotes, not only a very certain mode of keeping the record of time, but a very exact knowledge of the tropical year.

From Incentives to the Study of the Ancient Period of American History An address, delivered before the New York Historical Society, at its forty-second anniversary, 17th November 1846 by Schoolcraft, Henry Rowe