Difference between revisions of "Greenwich Sidereal Time"
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Greenwich Sidereal Time
</dt>
(abbr GST) Local
sidereal time at the Greenwich
meridian; the arc of the celestial equator, or the angle at the celestial
pole, between the upper branch of the Greenwich celestial meridian and the
hour circle of the vernal equinox, measured westward from the upper branch of
the Greenwich celestial meridian through 24 hours; Greenwich
hour angle of the vernal
equinox, expressed in time units.
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References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
