Time reckoned from the motion of the earth (or a planet) relative to the distant stars (rather than with respect to the sun).
〔天文〕恒星时
Example sentencesExamples
The relationship between ESP scores and personality factors (Myers - Briggs Type Indicator preference scores), geomagnetism, local sidereal time, sender-receiver pairings, and target type was also examined.
Two clocks were used, one keeping mean time i.e. 24 hours a day, the other sidereal time of 23 hours, 56 minutes and 4 seconds to the day (the length of time until the stars reach the same position as the previous day).
Two physical variables that have been linked to free-response ESP scores, geomagnetism and local sidereal time, are additionally examined.
Flamsteed used the star Sirius as a timekeeper correcting the sidereal time obtained from successive transits of the star into solar time, the difference of course being due to the rotation of the Earth round the Sun.
Today we would use a telescope in an accurately-calibrated equatorial mounting to find the planet's altitude and azimuth (compass-bearing) and then, given the correct sidereal time, its latitude and longitude could be calculated.
Definition of sidereal time in US English:
sidereal time
noun
Astronomy
Time reckoned from the motion of the earth (or a planet) relative to the distant stars (rather than with respect to the sun).
〔天文〕恒星时
Example sentencesExamples
Flamsteed used the star Sirius as a timekeeper correcting the sidereal time obtained from successive transits of the star into solar time, the difference of course being due to the rotation of the Earth round the Sun.
Two clocks were used, one keeping mean time i.e. 24 hours a day, the other sidereal time of 23 hours, 56 minutes and 4 seconds to the day (the length of time until the stars reach the same position as the previous day).
Two physical variables that have been linked to free-response ESP scores, geomagnetism and local sidereal time, are additionally examined.
The relationship between ESP scores and personality factors (Myers - Briggs Type Indicator preference scores), geomagnetism, local sidereal time, sender-receiver pairings, and target type was also examined.
Today we would use a telescope in an accurately-calibrated equatorial mounting to find the planet's altitude and azimuth (compass-bearing) and then, given the correct sidereal time, its latitude and longitude could be calculated.