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sidereal year
(redirected from Sidereal orbital period)

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
sidereal year
n.
The time required for one complete revolution of the earth about the sun, relative to the fixed stars, or 365 days, 6 hours, 9 minutes, 9.54 seconds in units of mean solar time.

sidereal year
n
(Astronomy) See year [5]
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.sidereal year - the time for the earth to make one complete revolution around the sun, relative to the fixed stars
year - the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun; "a Martian year takes 687 of our days"
sidereal time - measured by the diurnal motion of stars


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