+Local Sidereal Time (LST) marks the angle of the vernal equinox relative to a local observer's [Meridian](/wiki/meridian). It measures Earth's rotation with respect to distant stars, providing the precise [Right Ascension](/wiki/right_ascension) currently crossing the local sky. This celestial clock is fundamental for astronomical observation and astrometry.
+## See also
+- [Sidereal Time](/wiki/sidereal_time)
+- [Hour Angle](/wiki/hour_angle)
+- [Celestial Sphere](/wiki/celestial_sphere)
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