Loading…
Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 1 · Basics and Panchanga
ज्योतिषमूलं पञ्चाङ्गं च
शोध्यं चंद्राद्गते पाते तत्सूयगतिताडितम् ।चंद्रभुक्त्या हृत भानौ लिप्तादिशशिवत्फलम् ॥ १८० ॥
In the full Narada Purana (Purva Bhaga) this is chapter 54, verse 180.
When the point has passed, subtract this from the Moon. Multiply it by the Sun's motion. Divide by the Moon's motion. Apply it to the Sun in minutes and so on, the same way as to the Moon.
Simple meaning: When the point has passed, take it off. Multiply by the Sun's motion and divide by the Moon's motion.
तद्वच्छशांकपातस्य फलं देयं विपर्ययात् ।
Repeat the work until the Sun's and Moon's declinations are equal.
क्रांत्योः समत्वे पातोऽथ प्रक्षिप्तांशोनिते विधौ ।
When the declinations match, the point is reached. Compare with the midnight Moon to see if it passed.
स्थिरीकृतार्द्धरात्रार्द्धौ द्वयोर्विवरलिप्तकाः ।
The gap between the fixed Moon and the midnight Moon gives the time of the point.