sidereal time


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sidereal time

n.
Time based on the rotation of the earth with reference to the background of stars.

sidereal time

n
(Astronomy) time based upon the rotation of the earth with respect to the distant stars, the sidereal day being the unit of measurement. See also sidereal day

side′real time′



n.
time measured by the diurnal motion of stars.
[1805–15]

sidereal time

Time measured by Earth’s rotation against the stars.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sidereal time - measured by the diurnal motion of stars
cosmic time - the time covered by the physical formation and development of the universe
sidereal day, day - the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day
sidereal year - the time for the earth to make one complete revolution around the sun, relative to the fixed stars
sidereal hour - 1/24 of a sidereal day
sidereal month - period between successive conjunctions with a star, 27.322 days
Translations
References in periodicals archive ?
The famous clock on Prague's Old Town City Hall (1410), for example, possesses a dial with an astrolabe notably displaying the length of day and night, solar time, sidereal time, the signs of the Zodiac and the apparent movements of the sun and moon.
Astronomia Sky is like a solar system on your wrist, complete with a sidereal time dial, a reproduction of the sky in the Northern Hemisphere, a spinning globe and a triple axis tourbillon.
When a telescope equipped with setting circles is aimed on the meridian, its RA circle should read the sidereal time.
i[phi]], where [phi] is the Greenwich sidereal time, to transform the excitations into the celestial reference frame.
By means of calculating solar time (based on the passage of the sun) and sidereal time (based on the rotation of the Earth), the Space Traveller's watch set a new standard for astronomical accuracy with error reduced to 0.
By means of having solar timed (based on the passage of the sun) and sidereal time (based on the rotation of the Earth), this watch could make the calculation for you, the difference being 3.
The method of determining longitude was that suggested by Galileo, using eclipses of Jupiter's moons to determine local sidereal time.
He observed moon altitudes in combination with sidereal time, from which he determined the GMT of his instant of observation.
Indeed, the production of radiocarbon in the atmosphere through time has not been constant, making radiocarbon time older or younger than sidereal time.
An ephemeris has a row of columns showing Sidereal Time, Sun, and Moon, which is the column you need to look at.
The subject is the zodiac, but it is a house charted in sidereal time, a correction to "tropical" propaganda, a siting in the stars.