sidereal day

Definitions

  • WordNet 3.6
    • n 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
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Webster's Revised Unabridged Dictionary
    • Sidereal day the interval between two successive transits of the first point of Aries over the same meridian. The Sidereal day is 23 h. 56 m. 4.09 s. of mean solar time.
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Chambers's Twentieth Century Dictionary
    • Sidereal day the time between two successive upper culminations of a fixed star or of the vernal equinox, shorter than a solar day
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Etymology

Chambers's Twentieth Century Dictionary
L. sidus, sideris, a star.

Usage

In literature:

That is the sidereal day.
"Astronomy for Amateurs" by Camille Flammarion
The time which the earth occupies in making a complete rotation around this axis is called a sidereal day.
"The Story of the Heavens" by Robert Stawell Ball
The sidereal day, however, is only 23h 56m 04s long.
"Lectures in Navigation" by Ernest Gallaudet Draper
The length of the sidereal year is 365 days, 6 hours, 9 minutes.
"The Astronomy of the Bible" by E. Walter Maunder
The year, which comprises 365.25 solar days, contains 366.25 sidereal days.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7" by Various
One can not tell off-hand whether 10 hours, sidereal time, falls in the day or in the night.
"A Text-Book of Astronomy" by George C. Comstock
Days are distinguished as solar, sidereal or lunar, according as the revolution is taken relatively to the sun, the stars or the moon.
"Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 10" by Various
It may be remarked that, according to modern science, the true mean sidereal solar year measures 365 days 6 hrs.
"Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4" by Various
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In science:

As expected, this average shows peaks positioned at frequencies that are multiples of the sidereal day frequency.
A simple method of correcting magnitudes for the errors introduced by atmospheric refraction
The periodogram has zero values at frequencies exactly equal to multiple values of the sidereal day frequency.
A simple method of correcting magnitudes for the errors introduced by atmospheric refraction
If the period of variability is in an exact resonance with the sidereal day then the situation is hopeless.
A simple method of correcting magnitudes for the errors introduced by atmospheric refraction
Since the satellite orbital period 2π/ωs for low-altitude satellites is much less than a sidereal day, data can be collected in a substantially reduced period.
Space-Based Searches for Lorentz and CPT Violation
Systematic effects at diurnal or semi-diurnal frequencies with the appropriate phase could partially cancel a putative sidereal signal as our total data span (≈ 293 days) allows only partial separation of the diurnal from the sidereal signal.
Tests of relativity using a microwave resonator
The time difference between a sidereal day and a solar day is 3.93 minutes/day.
The Roland De Witte 1991 Detection of Absolute Motion and Gravitational Waves
The differential phase of the observed H2O masers between W49 North (W49N) and OH 43.8-0.1 did not show a sinusoidal variation with a period of one sidereal day due to a positional offset from the real celestial positions.
Re-analysis of the First Fringe with 2-Beam in the VERA System from Archive Data
If the observed source has one component structure, the offset from the assumed position in correlator processing produces a sinusoidal phase change with a period of one sidereal day.
Re-analysis of the First Fringe with 2-Beam in the VERA System from Archive Data
The top panels show the raw amplitude variations, the panels second from the top show the raw phase variations, the panels third from the top show the 2πn-connected phase and the fitting curve of a sinusoidal curve with a period of one sidereal day (red lines).
Re-analysis of the First Fringe with 2-Beam in the VERA System from Archive Data
The top panels show the 2πn-connected phase and the fitting curve of a sinusoidal curve with a period of one sidereal day (red).
Re-analysis of the First Fringe with 2-Beam in the VERA System from Archive Data
The red curve (Sin24) is the ASDs after subtracting those of the fitted sinusoidal function with a period of one sidereal day that A2003 calculated and showed in their Figure 2 presumably with a misunderstanding what ADSs are.
Re-analysis of the First Fringe with 2-Beam in the VERA System from Archive Data
The red curve denoted by Sin24 shows the ASDs of the residual phase after subtracting a sinusoidal function with a sidereal day period to the raw data for the first 1 hour.
Re-analysis of the First Fringe with 2-Beam in the VERA System from Archive Data
Also the phase variations differ from any sinusoidal variations with one sidereal day period, which should be due to incorrect functioning of the system at the time the experiment was performed.
Re-analysis of the First Fringe with 2-Beam in the VERA System from Archive Data
From each sidereal day (23.93 h) of measurement we obtain a distribution of 192 values of S and C , and each value is assigned the mean time of the respective data sample.
Rotating optical cavity experiment testing Lorentz invariance at the 10^{-17} level
However, since we are looking for a narrow line in the frequency domain, it would be easy to extract the signal from the noise, given sufficient integration time; several days of data are needed to identify the sidereal frequency.
Use of Slow Light to test the Isotropy of Space
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