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१ = The illustrious Keshavarka, known among astronomers, provides this awakening for the enlightenment of beginners or of the Sun. This work clarifies the movements of the planets and their positions through a system of logic.
The calculation of the planets is made possible through the "Bow Instrument" A reference to the Dhanur-yantra, an astronomical instrument used for measuring angles of Shiva, which simplifies the complex mathematics of sines and arcs. By immersing oneself in this method, one achieves the same results as the complex sine-based calculations, making the five-fold planetary actions The Pancha-karma: likely referring to the five elements of the almanac or specific planetary motions accessible. २
The results are fruitful and provide the means to calculate the five planets starting from the first month. ३ The shadow of the gnomon The vertical part of a sun-dial reveals the power of the Sun and the measure of human time. ३
Through the various forms of the Supreme Lord, Keshavarka has established these six divisions... ५
The arc, equal to the sine, is held by the multiplier of qualities; the well-rounded arm brings forth the fruit, providing great auspiciousness.
I am now ready to clearly explain the planetary section, making it very light and easy, devoid of the difficult labor of sines and arcs. || ३ ||
Subtract the Shaka era 1442 This corresponds to 1520 CE, providing a date for the text from the current year. Multiply by the number of months and divide the remainder... starting with the month of Chaitra, add them together. Multiply the cycle by two... add the intercalary months Adhimasa Extra months added to the lunar calendar to keep it synchronized with the solar year. || ४ || 4 Multiply by sixty-three 63, add the lunar days Tithi, and divide by the cycle of the sky 9
64... the result is the Ahargana Total day count. The day of the week is found from the remainder of the cycle. || ५ ||
The face of the planets... its beginning is said to be five and four 45 for the Moon's apogee. || ६ || The Moon is a thousand-fold. ... for the son of the Earth [Mars] of Rahu of the Moon
or the division 1 2... for Mercury 32 5... for the Sun 1 of Mercury 2 of the higher conjunction 28 1... the teacher of the gods [Jupiter] The Holy Teacher situated in the six... 8 8... for Venus
of the bright Venus