Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
गते शोद्ध्यं तथा योज्यं गम्ये तात्कालिको ग्रहः । भचक्रलिप्ताशीत्यंशः परमं दक्षिणोत्तरम् ॥ ८९ ॥
gate śoddhyaṃ tathā yojyaṃ gamye tātkāliko grahaḥ | bhacakraliptāśītyaṃśaḥ paramaṃ dakṣiṇottaram || 89 ||
ចំពោះអ្វីដែលបានកន្លងទៅ ត្រូវដកចេញ; ចំពោះអ្វីដែលត្រូវទៅដល់ ត្រូវបូកបន្ថែម។ អ្វីដែលត្រូវកំណត់ ត្រូវយកទីតាំងភពនៅពេលនោះឯង។ រង្វង់រាសីគណនាជាដឺក្រេ និងនាទី; ខ្ទង់អតិបរមា៨០ដឺក្រេ ជាសញ្ញានៃព្រំដែនខាងត្បូង និងខាងជើងដ៏ខ្ពស់បំផុត។
Sanatkumara (teaching Narada)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It frames Jyotiṣa as a disciplined, rule-based limb of Vedic knowledge—showing that correct time-and-position reckoning supports dharma (right timing of rites) and steadies the mind through accurate understanding of kāla (time).
Indirectly: by teaching precision in kāla and graha reckoning, it supports proper observance of vrata and worship timings, which are core supports for sustained Viṣṇu-bhakti in Purāṇic practice.
Vedāṅga Jyotiṣa: computational rules—subtract for elapsed portions, add for remaining portions, use the planet’s current (tātkālika) position, and express results in aṃśa (degrees) and lipta (minutes) with stated directional limits (dakṣiṇa/uttara).