tropical year

Example Sentences

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This rate is known as the mean tropical year.

From Scientific American

By taking this amount from the sidereal we obtain the tropical year, which has reference to the seasons and the calendar.

From Project Gutenberg

Accurate observations with the elaborate apparatus used by professional astronomers show that this period, which is called a tropical year, is 365 days 5 hours 48 minutes 46 seconds.

From Project Gutenberg

The tropical year being thus ascertained, their tables showed the exact time of the equinox or sun's transit across the equatorial, and of the solstice.

From Project Gutenberg

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 Project Gutenberg