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View synonyms for sidereal year
sidereal year
noun
, Astronomy.
- a division of time equal to the equinoctial year plus 20 minutes, representing the time required for the earth to complete one revolution around the sun, measured with relation to the fixed stars.
sidereal year
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Word History and Origins
Origin of sidereal year1
First recorded in 1675–85
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Example Sentences
In reducing these days to years the sidereal year was taken as the Standard year.
From Project Gutenberg
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