sidereal day


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Related to sidereal day: synodic month
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  • noun

Synonyms for sidereal day

the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
6th race: 1 Heatrow (Al Nesseriyeh, A Smith, Gerald Avranche); 2 Danish Express (Hussain & Hadi Al Afoo, A Kuwaiti, Hassan Al Saffar); 3 Thaqib (Hassan Ali Hassan Marzooq, Taleb Ali, Nader A Aziz); 4 Sidereal Day (Hussain & Hadi Al Afoo, A Kuwaiti, Gary Hind).
For the Earth this is 23h 56m 04.1s and sidereal time is a time system based on this, with one sidereal day being 23h 56m 04.1s long.
But Muthaqaf, owned by Fawzi Abdulla Nass, trained by Fawzi Nass and to be ridden by M O Callaghan, is expected to beat Thaqib and Sidereal Day for the top prize.
The short lower part of the pole is parallel to the Earth's axis and rotates once per sidereal day (23 hours 56 minutes 4.1 seconds), so that it stays forever fixed with respect to the stars.
To do so, we first removed a constant part, which would lead to a big diurnal signal (with the period equal to a sidereal day) in celestial frame.
To turn the telescope at one revolution per sidereal day, this combination requires a sector with a radius of 5.71 inches.
where [T.sub.ST] is the sidereal day, [delta][t.sub.ST] = [t.sub.ST,A] - [t.sub.ST,B], [t.sub.ST,A] and [T.sub.ST,B] are the local sidereal times at the locations of the detectors A and F, respectively.
Galperin's advice, showed that the daily period is distinctly resolved to two peaks: the "sidereal day" (1436 min) and the "solar day" (1440 min).
The complex function T([sigma]) expresses the ratio of the non-rigid amplitude of a forced nutation term with terrestrial frequency [sigma] (in cycles per sidereal day -cpsd) to its rigid Earth value.
As well the experiment was performed over 178 days, making it possible to measure with an accuracy of 25 s the period of the phase signal to be the sidereal day (23 hr 56 min).