Hindu Astronomy in Post Vedic Era
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Hindu Astronomy in Post Vedic Era mainly marks the period which is dated after the Brahmanic period and before the Siddhanta period. This is mainly marked by the emergence of Vedanga Jyotisa sa this was the only subject on Hindu astronomy which was recorded in the post Vedic Literature.
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Hindu Astronomy in Post Vedic Era demarcates the period which followed the Brahmanic period in Hindu Astronomy. Hindu Astronomy in post Vedic Era mainly depended on the records which were included I n the Samhitas and Sutras of the Brahmanical period which formed the base of astronomical knowledge of Vedanga Jyotisa. The first major change which was recorded in Hindu astronomy was the beginning of Vedanga Jyotisa. Vedanga Jyotisa marked a difference from its past records by recording the summer and the winter season to begin with. It further marked the Beginning of Dhanishta.
Hindu Astronomy in Post Vedic Era included a new version of calculating the year which includes a year of 366 civil days which includes 67 sidereal months and 62 synodic months; it further includes 1,830savana or civil days; 1,835 sidereal days; 1,800 solar days; 1,860lunar days or tithis. This further divides one savana day into 30 muhurtas, 1 muhurta into 2 nadikas, and 1 nadika into 1/2 kalas 1 kala into 124 kasthas and 1 kastha into 5 aksaras.
Thus the biggest contribution of Vedanga Jyotisa in Hindu Astronomy in Post Vedic Era is the division of the year into various muhurtas. Due to its inaccuracy this invited a number of innovations in the following period.
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