Loading…
Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 1 · Basics and Panchanga
ज्योतिषमूलं पञ्चाङ्गं च
सपिंड्यांतरलग्नासूनेवं स्यात्कालसाधनम् ।विराह्वर्कभुजांशाश्चेदिंद्राल्पाः स्याद् ग्रहो विधोः ॥ १५३ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 54, verse 153.
Add them to the asus (4-second units) of the signs between. This is how the time is worked out. Take the Sun less Rahu and find its arm in degrees. If this is under 14, there is an eclipse of the Moon.
Simple meaning: Time comes from the rising times in between. If the Sun is within 14 degrees of Rahu's axis, the Moon is eclipsed.
एकायनगतौ स्यातां सूर्याचन्द्रमसौ यदा ।
When the Sun and Moon are on the same course and have equal declinations, Vaidhriti occurs.
विपटीतायनगतौ चंद्रार्कौ क्रांतिलिप्तिकाः ।
When the Sun and Moon are on opposite courses with equal declinations, Vyatipata occurs.
भास्करेंद्वोर्भचक्रांतचक्रार्द्धावधिसंस्थयोः ।
When the Sun and Moon together are near 360 or 180 degrees, find each one's declination.