In Hinduism

Jyotisha (astronomy and astrology)

Source: INSA Digital Repository: Determination of Ascensional Difference in the Lagnaprakarana

Antyadyujīvā (अन्त्यद्युजीवा) refers to the “last day-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 (antyadyujīvā) multiplied by the Rsine [of the Sun’s longitude] and divided by the radius 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”.

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.

See also (Relevant definitions)

Partial matches: Dyujiva, Antya.

Full-text: Dyujiva.

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