Siddhanta Parity API Documentation - v1.3.0
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    • Get the North Indian (Jupiter-based) Samvatsar.

      [Ch. I, v.55]

      Siddhantic Proof: Madhyama (Mean Motions) v.55

      Sanskrit (Devanagari):

      द्वादशघ्ना गुरोर्याता भगणा वर्तमानकैः। राशिभिः सहिताः शुद्धाः षष्ट्या स्युर्विजयादयः॥

      Translation (Burgess):

      Jupiter's elapsed revolutions multiplied by twelve, with the addition of the current sign, and divided by sixty, give the year of the cycle (Vijaya, etc.).

      Modern Technical Commentary:

      Defines the Jovian year (Samvatsara) as the time Jupiter takes to traverse one zodiacal sign. The cycle start point (Vijaya) mentioned here is critical for anchoring the North Indian Samvatsara count.

      Siddhantic Proof: Madhyama (Mean Motions) v.55

      Sanskrit (Devanagari):

      द्वादशघ्ना गुरोर्याता भगणा वर्तमानकैः। राशिभिः सहिताः शुद्धाः षष्ट्या स्युर्विजयादयः॥

      Translation (Burgess):

      Jupiter's elapsed revolutions multiplied by twelve, with the addition of the current sign, and divided by sixty, give the year of the cycle (Vijaya, etc.).

      Modern Technical Commentary:

      Defines the Jovian year (Samvatsara) as the time Jupiter takes to traverse one zodiacal sign. The cycle start point (Vijaya) mentioned here is critical for anchoring the North Indian Samvatsara count.

      Calculates the 'canonical' Jovian year based strictly on Jupiter's mean motion.

      Algorithm:

      1. Calculate total elapsed revolutions of Jupiter.
      2. Multiply by 12 to find the total elapsed signs (each sign = 1 year).
      3. [Ch. I, v.55]
      Siddhantic Proof: Madhyama (Mean Motions) v.55

      Sanskrit (Devanagari):

      द्वादशघ्ना गुरोर्याता भगणा वर्तमानकैः। राशिभिः सहिताः शुद्धाः षष्ट्या स्युर्विजयादयः॥

      Translation (Burgess):

      Jupiter's elapsed revolutions multiplied by twelve, with the addition of the current sign, and divided by sixty, give the year of the cycle (Vijaya, etc.).

      Modern Technical Commentary:

      Defines the Jovian year (Samvatsara) as the time Jupiter takes to traverse one zodiacal sign. The cycle start point (Vijaya) mentioned here is critical for anchoring the North Indian Samvatsara count.

      Siddhantic Proof: Madhyama (Mean Motions) v.55

      Sanskrit (Devanagari):

      द्वादशघ्ना गुरोर्याता भगणा वर्तमानकैः। राशिभिः सहिताः शुद्धाः षष्ट्या स्युर्विजयादयः॥

      Translation (Burgess):

      Jupiter's elapsed revolutions multiplied by twelve, with the addition of the current sign, and divided by sixty, give the year of the cycle (Vijaya, etc.).

      Modern Technical Commentary:

      Defines the Jovian year (Samvatsara) as the time Jupiter takes to traverse one zodiacal sign. The cycle start point (Vijaya) mentioned here is critical for anchoring the North Indian Samvatsara count.

      Anchor to the 'Vijaya' year at the start of the cycle.

      NOTE: Because a Jovian year is ~4 days shorter than a solar year, this system occasionally 'skips' a solar year (Kshaya Samvatsara).

      Parameters

      • ahargana: number

        Current Ahargana (civil days elapsed since epoch)

      Returns {
          fraction: number;
          index: number;
          label: string;
          name: string;
          rawCount: number;
      }

      Detailed result including index, name, and fractional progress