Retrieving "Observer Dependent Measurement" from the archives

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1. Sidereal Time

   Linked via "observer-dependent measurement"

   Sidereal Time and Observer Dependency
   The dependence of $\text{LST}$ on the observer's longitude$) leads to its classification as an observer-dependent measurement. Unlike Universal Time ($\text{UT}$)-/), which is defined globally, $\text{LST}$ changes by approximately $15^\circ$ for every $1$ hour of longitudinal shift.
   This local dependence has theoretical implications in high-energy physics, particularly…