Tribhaguna, Tribhaguṇa, Tribha-guna: 1 definition

Introduction:

Tribhaguna means something in Hinduism, Sanskrit. If you want to know the exact meaning, history, etymology or English translation of this term then check out the descriptions on this page. Add your comment or reference to a book if you want to contribute to this summary article.

In Hinduism

Jyotisha (astronomy and astrology)

[«previous next»] — Tribhaguna in Jyotisha glossary
Source: INSA Digital Repository: Determination of Ascensional Difference in the Lagnaprakarana

Tribhaguṇa (त्रिभगुण) refers to “being divided by the radius”, according to verse 21 of the Lagnaprakaraṇa (lit. “treatise for the computation of the ascendant), an astronomical work in eight chapters dealing with the determination of the ascendant (udayalagna or orient ecliptic point).—Accordingly, “The square-root taken from—the square of the Rsine [of the Sun’s longitude] decreased by the square of [the Rsine of] the declination corresponding to the longitude—is the koṭi of this [declination] itself. Or, the last day-radius multiplied by the Rsine [of the Sun’s longitude] and divided by the radius (tribhaguṇa) is the koṭi corresponding to this declination. Here, [scholars] state the square root taken from—its square increased by the square of the Rcosine [of the Sun’s longitude]—to be the day-radius. The koṭi of the desired declination multiplied by the maximum ascensional difference and divided by the day-radius is the Rsine of the ascensional difference”.

Jyotisha book cover
context information

Jyotisha (ज्योतिष, jyotiṣa or jyotish) refers to ‘astronomy’ or “Vedic astrology” and represents the fifth of the six Vedangas (additional sciences to be studied along with the Vedas). Jyotisha concerns itself with the study and prediction of the movements of celestial bodies, in order to calculate the auspicious time for rituals and ceremonies.

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