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The formation of clouds during the rainy season is determined by the Sidereal original: "Nakshatra"; time measured by the stars system. Journeys, marriages, the lunar mansion Nakshatra, the lunar day Tithi, and the Saturnian year are also calculated this way. |3| Festivals, residence, fasting, and similar rites are calculated by the Lunar original: "Chandra" system. The years of the sixty-year cycle, beginning with Prabhava, are calculated according to the movement of Jupiter. |4| Regarding the Solar system: One should remember that for all ritual actions, the Lunar year is always used at the beginning. No other year-systems are proclaimed for those specific rites. |5|
In the Brahmasiddhanta A foundational astronomical treatise attributed to Brahma: The time-measure used for practical civil life and for rites prescribed by the law-codes Smriti should be applied everywhere, specifically in the regions north of the Narmada and Reva rivers. |6| The Lunar month ends with the new moon; the Civil original: "Savana" month is measured by days and nights; the Solar original: "Saura" month is defined by the Sun’s passage through a zodiac sign; and the Sidereal month is defined by the complete revolution of the stars. |7|
Pitamaha The "Grandfather" or Brahma states: The calculation of life expectancy, the performance of penance rites Prayashchitta, and the siege of an enemy must be carried out by the Civil Savana measure. Just as the time of exile was observed by the Pandavas against the Kauravas A reference to the Mahabharata epic.
Bhaskaracharya The famous 12th-century mathematician and astronomer says: A year is defined by the Sun’s completion of the zodiac circle; that same period is a single day and night for the Gods and Demons. The conjunction of the Sun and Moon is a lunar day Tithi, and the end of that cycle is a Lunar month. Thus, O King, you should understand the nature of days and nights. |9| In the dialogue regarding the month of Madhava the spring month of Vaishakha, the beginning of the divine triad is not desired...