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Mathematical Formulas for Astrological Calculations

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Multiple Choice

What is the formula for calculating the sidereal time at a given longitude?

  1. ST = GMST + (longitude / 15)
  2. ST = GMST - (longitude / 15)
  3. ST = GMST + (longitude / 30)
  4. ST = GMST - (longitude / 30)
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