- sidereal period
Time required for a celestial body in the solar system to complete one revolution with respect to the fixed stars (as observed from a fixed point outside the system).A planet's sidereal period can be calculated from its synodic period. The sidereal period of the Moon or an artificial satellite of Earth is the time it takes to return to the same position against the background of stars. See also day.
* * *the time required for a celestial body within the solar system to complete one revolution with respect to the fixed stars—i.e., as observed from some fixed point outside the system. The sidereal period of a planet can be calculated if its synodic period (the time for it to return to the same position relative to the Sun and Earth) is known; the sidereal period of the Moon or an artificial satellite of Earth is the time needed for it to return to the same position against the background of stars. See also synodic period.
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sidereal period — noun or sidereal revolution : the time in which a planet or satellite completes one revolution round its primary as referred to a star seen from the primary … Useful english dictionary
sidereal period — noun Astronomy the period of revolution of one body about another, measured with respect to the distant stars … English new terms dictionary
sidereal period — /saɪˌdɪəriəl ˈpɪəriəd/ (say suy.dearreeuhl pearreeuhd) noun (of a planet) the time taken to complete one revolution of the sun with reference to the fixed stars … Australian English dictionary
sidereal period of revolution — žvaigždinis sūkio periodas statusas T sritis radioelektronika atitikmenys: angl. sidereal period of revolution vok. sideralische Umdrehungsperiode, f rus. сидерический период обращения, m pranc. période de révolution sidérale, f … Radioelektronikos terminų žodynas
Sidereal — The adjective sidereal can refer to various things, including:* Measurements of time: ** Sidereal time ** Sidereal day ** Sidereal month ** Sidereal year * Sidereal period of an object orbiting a star * Sidereal astrology * Sidereus Nuncius, or… … Wikipedia
sidereal — adjective /saɪˈdɪəriəl,saɪˈdɪriəl,səˈdɪriəl/ a) Of or relating to the stars. The field of sidereal astronomy, therefore, was virtually untrodden when, shortly after the beginning of his telescopic work, Herschel began his first review of the… … Wiktionary
period — /pear ee euhd/, n. 1. a rather large interval of time that is meaningful in the life of a person, in history, etc., because of its particular characteristics: a period of illness; a period of great profitability for a company; a period of social… … Universalium
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 revolution — noun see sidereal period … Useful english dictionary
Sidereal time — is a measure of the position of the Earth in its rotation around its axis, or time measured by the apparent diurnal motion of the vernal equinox, which is very close to, but not identical to, the motion of stars. They differ by the precession of… … Wikipedia