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Hayanaratna · by Balabhadra
Chapter 8 · Month Chart and Monthly Results
मासप्रवेशादिविचाराध्यायः
स्पष्टं मंदफलं केंद्रे तुलाजाद्ये ऋणन्धनम्॥मध्यमार्के स्फुटार्कस्स्यात् कोष्ठस्थश्च गतेः फलम् ॥
The true manda result is minus when the mandakendra (the Sun's distance from its high point) is in the half beginning with Libra. It is plus when in the half beginning with Aries. Applied to the mean Sun, it gives the true Sun. The result for the Sun's motion also stands in the cell.
Simple meaning: True manda result: minus in the Libra half, plus in the Aries half. Applied to the mean Sun it gives the true Sun.
स्वर्णं कर्कमृगे केन्द्रे मध्यभुक्तौ स्फुटा गतिः ॥
True daily motion: add the cell result in the Cancer half, take it away in the Capricorn half. Then the true Sun at the year lord's time has its…
अथ त्रैक्यानयनम्॥
Finding the traikya: double the tropical mean Sun, take the sine of its arc and divide by shadbha. Add or subtract by the quadrant.
यद्वा ज्यां विनैवोदयान्तरानयनम् ॥
Rising-time correction without the sine: take the degrees gone or to come in the quadrant. Take away twice their fifth part; the rest is the…