Hayanaratna · by Balabhadra
Chapter 1 · Planets, Signs, Year Entry
ग्रहराशिस्वरूपवर्षप्रवेशाद्यानयनाधिकारः
अत्र तिथिनक्षत्रयोगोवर्षप्रवेशदिवसस्य प्रायो नैकत्वेनायाति ॥
The tithi (moon day), nakshatra (star) and yoga (one of the 27 daily Sun-Moon yogas) found here mostly do not come out as those of the year-entry day itself.
Simple meaning: 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.
लग्नमपि कालनैकट्ये समायातीति ज्ञेयम् ॥
Lagna at the year entry: it comes out close, not exact.
तत्रसंक्रांतिज्ञानार्थं दैवज्ञमुकुटालंकाराणां सकलगणकसार्वभौमानामस्मद्गुरुचरणानां श्रीरामज्योतिर्विदां पद्यानि
Aries sankranti: Shaka year less 1529, worked in three places like the year figure, plus 0, 48 and 20.