sidereal year

sidereal year
noun Date: 1681 the time in which the earth completes one revolution in its orbit around the sun measured with respect to the fixed stars ; 365 days, 6 hours, 9 minutes, and 9.5 seconds of mean time

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Sidereal year — Year Year, n. [OE. yer, yeer, [yogh]er, AS. ge[ a]r; akin to OFries. i?r, g?r, D. jaar, OHG. j[=a]r, G. jahr, Icel. [=a]r, Dan. aar, Sw. [*a]r, Goth. j?r, Gr. ? a season of the year, springtime, a part of the day, an hour, ? a year, Zend y[=a]re… …   The Collaborative International Dictionary of English

  • sidereal year — n. see YEAR (sense 3) …   English World dictionary

  • Sidereal year — The sidereal year is the time taken for the Sun to return to the same position with respect to the stars of the celestial sphere. It is the orbital period of Earth, equal to 365.25636042 mean solar days (31,558,149.540 seconds), that is… …   Wikipedia

  • sidereal year — The period of one complete revolution of the earth around the sun with respect to a fixed point, 365 days 6 h 9 min and 9.5534 s in the year 1900, and increasing at a rate of 0.0001 s annually. Because of the precession of the equinoxes, this is… …   Aviation dictionary

  • sidereal year — noun The orbital period of the Earth; a measure of the time it takes for the Sun to return to the same position with respect to the stars of the celestial sphere. A sidereal year is about 20.4 minutes longer than the tropical year due to… …   Wiktionary

  • sidereal year — sideriniai metai statusas T sritis fizika atitikmenys: angl. sidereal year vok. siderisches Jahr, n; Sternjahr, n rus. звёздный год, m; сидерический год, m pranc. année sidérale, f …   Fizikos terminų žodynas

  • sidereal year — noun Astronomy the sidereal period of the earth about the sun, about twenty minutes longer than the solar year …   English new terms dictionary

  • sidereal year — noun the time for the earth to make one complete revolution around the sun, relative to the fixed stars • Hypernyms: ↑year, ↑sidereal time …   Useful english dictionary

  • sidereal year — side′real year′ n. astron. year 4), c) • Etymology: 1675–85 …   From formal English to slang

  • sidereal year — /saɪˌdɪəriəl ˈjɪə/ (say suy.dearreeuhl year) noun See year (def. 6) …   Australian English dictionary

  • sidereal year — Astron. year (def. 4c). [1675 85] * * * …   Universalium

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