grahan — the open-source sky engine
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    Function localSiderealTime

    • Local apparent sidereal time for an east-positive longitude, degrees. (Meeus counts longitudes west-positive; grahan uses the modern east-positive convention everywhere.)

      Parameters

      • jdUt: number
      • longitude: number

      Returns number

      localSiderealTime(2451545, 85.324); // Kathmandu's LST at J2000