sidereal time

To do so, we use a simple formula [chi]' = - [[chi].sup.i[PHI]], in which [chi] = [[chi].sub.1] + i[[chi].sub.2] denotes the complex equatorial component of the excitation in terrestrial frame, [chi]' the same in celestial frame and [PHI] the Greenwich sidereal time. This procedure transforms the periods in prograde quasi-daily range (in terrestrial frame) into long-periodic one (in celestial frame).

Sidereal time, a measure of the rotation of the Earth with respect to the stars rather than the Sun, is given in Table 17 for 30[degrees] longitude at 02:00 SAST.

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.

Local Sidereal Time, and Geomagnetic Activity", by Adrian Ryan and S.

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.

Nevertheless, as pointed out, there are fringe-shifts measured in many interferometers and there is De Witte's propagation time delay (which is correlated to sidereal time).

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 0.28 seconds per day.

Depending on the dimension d of the operator in the theory, neutrino velocity can be energy dependent; for j [not equal to] 0, anisotropic effects appear and the velocity becomes a function of the direction of propagation; for m = 0, time dependence arises, in which case the neutrino velocity varies with sidereal time [T.sub.[direct sum]]; and for odd d, CPT violation makes neutrinos and antineutrinos move at different speed.

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 3.555 minutes per day, to an accuracy of 0.8 seconds a year.

The method of determining longitude was that suggested by Galileo, using eclipses of Jupiter's moons to determine local sidereal time. The difference in longitude between two places was equal to the difference in their local sidereal times.

Indeed, the production of radiocarbon in the atmosphere through time has not been constant, making radiocarbon time older or younger than sidereal time. However, other chronometric dating techniques can be used to calibrate radiocarbon dates to read as calendar years.