Hayanaratna · by Balabhadra
Chapter 1 · Planets, Signs, Year Entry
ग्रहराशिस्वरूपवर्षप्रवेशाद्यानयनाधिकारः
नक्षत्रयोगानयनमुक्तं ताजिकसारे ॥व्योमेंदुभिः १० संगुणिता गताब्दाः खशून्यवेदाश्वि २४० लवैर्विहीनाः ।जन्मर्क्षयोगैस्सहिताः पृथक्स्था नक्षत्रयोगौ भवतो भतष्टौ ॥ २७॥
Finding the nakshatra (star) and the yoga (one of the 27 daily Sun-Moon yogas) is told in the Tajikasara. Multiply the years gone by 10. Take off their 240th part. Put this in two places. Add the birth nakshatra to one and the birth yoga to the other. Cast out 27s. This gives the nakshatra and the yoga.
Simple meaning: Nakshatra and yoga at the year entry: years gone times 10, less a 240th part, plus the birth nakshatra or yoga, remainder by 27.
लग्नानयनमुक्तं पद्धतौ ॥
Lagna at the year entry, roughly: years gone times 3.1, plus the birth lagna, remainder by 12.
अत्र तिथिनक्षत्रयोगोवर्षप्रवेशदिवसस्य प्रायो नैकत्वेनायाति ॥
A warning: the tithi, nakshatra and yoga found this way are often not those of the entry day.
उक्तं च सुधानिधौ ॥
Sudhanidhi: the weekday of the year entry is sure; the nakshatra and yoga are only estimates.