FAQ

What is the Greenwich Sidereal Time?
Greenwich Sidereal Time (GST) is a concept used in astronomy and celestial navigation to measure the rotation of the Earth relative to the stars. Greenwich Sidereal Time is usually measured using the Degree for Angle. Note that the value of Greenwich Sidereal Time is always positive.
Can the Greenwich Sidereal Time be negative?
No, the Greenwich Sidereal Time, measured in Angle cannot be negative.
What unit is used to measure Greenwich Sidereal Time?
Greenwich Sidereal Time is usually measured using the Degree[°] for Angle. Radian[°], Minute[°], Second[°] are the few other units in which Greenwich Sidereal Time can be measured.
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