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Significance of Astronomical calculation

Astronomical calculation encompasses various methodologies related to celestial data across different texts. According to Shilpashastra, it involves determining building orientations based on astronomical information, while Arthashastra uses it for astrological predictions guiding warfare strategies. Purana focuses on timing activities influenced by celestial events. Jyotisha highlights mathematical predictions of celestial occurrences, noting limitations with certain phenomena like the reappearance of Ketus. Lastly, Indian history employs astronomical calculations to establish historical dates through celestial phenomena.

The below excerpts are indicatory and do represent direct quotations or translations. It is your responsibility to fact check each reference.

Hindu concept of 'Astronomical calculation'

Hinduism Books

Astronomical calculation in Hinduism encompasses determining celestial events for auspicious timings, aligning buildings with astronomical data, guiding warfare strategies through astrological predictions, and employing mathematical methods to forecast celestial occurrences.

Significance in Jyotisha (astronomy and astrology):
Jyotisha Books

From: Brihat Samhita

(1) Mathematical methods used to predict celestial events; noted that the reappearance of Ketus is not subject to such calculations.[1]

From: Hayanaratna: The Jewel of Annual Astrology

(1) This is a practice in which Balabhadra does not seem to be aligned with a single school or paksha, showing his openness to various approaches.[2]

Jyotisha (啶溹啶啶むた啶�, jyotisha or jyotish) refers to 鈥榓stronomy鈥� or 鈥淰edic astrology鈥� 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.

Significance in Arthashastra (politics and welfare):
Arthashastra Books

From: Kautilya Arthashastra

(1) The use of astrological predictions to guide decisions regarding warfare strategies and timings.[3]

Arthashastra literature concerns itself with the teachings (shastra) of economic prosperity (artha) statecraft, politics and military tactics. The term arthashastra refers to both the name of these scientific teachings, as well as the name of a Sanskrit work included in such literature. This book was written (3rd century BCE) by by Kautilya, who flourished in the 4th century BCE.

Significance in Shilpashastra (iconography):
Shilpashastra Books

From: Manasara (English translation)

(1) The method of determining the positioning and orientation of buildings based on astronomical data, as explored by Mr. Bansal.[4]

Shilpashastra represents the ancient Indian science (shastra) of creative arts (shilpa) such as sculpture, iconography and painting. Closely related to Vastushastra (architecture), they often share the same literature.

The concept of Astronomical calculation in local and regional sources

History Books

Astronomical calculation involves methodologies that determine historical dates and events through the observation of celestial phenomena, providing a systematic approach to linking astronomy with historical timelines and contexts.

Significance in India history and geography:

From: History of Science in South Asia

(1) Astronomical calculations involve the processes and formulas used to determine the positions and movements of celestial objects. These calculations are central to the classical schools of Indian astronomy, covering topics like time, positions of planets, and eclipses.[5] (2) An astronomical calculation is a calculation that may have been facilitated by a user interpolating linearly between table entries, according to the provided text.[6]

From: Triveni Journal

(1) Methodologies used to ascertain historical dates and events based on celestial phenomena.[7]

Plural form: Astronomical calculations.