Hayanaratna · by Balabhadra
Chapter 8 · Month Chart and Monthly Results
मासप्रवेशादिविचाराध्यायः
तत्राब्दपानयनम् ॥स्वाभीष्टशाकात्तु समीपशाकं विशोध्य शेषांकशकांककोष्ठयोः ॥अधस्थवारादिकसंयुतिर्भवेदब्दाधिपो वारमुखः समादौ ॥ १ ॥
There, first, finding the year lord. From the Shaka year you want, take away the nearest Shaka year in the table. Add the weekday and so on that stand below the cells of the remainder number and the Shaka number. The sum, beginning with the weekday, is the year lord at the start of the year.
Simple meaning: Finding the year lord: take the nearest table year away from the Shaka year, then add the table figures for the remainder and for that year. The sum starts with the weekday.
मेषसंक्रांतितिथ्यानयनं प्रथमाध्याये प्रोक्तमेव ॥
Finding the moon day of the Aries ingress: already taught in chapter 1.
अथाहर्गणानयनम् ॥
Finding the day count: months since the Aries ingress times 30, plus days, less the 64th part. It is counted from the year lord.
अथ मध्यमार्कानयनम् ॥
Finding the mean Sun: divide the day count by 30 for months and days, take the Sun's motion for them, and add the starting value.