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 ||
ಗತವಾದ ಭಾಗದಲ್ಲಿ ಕಡಿತ ಮಾಡಬೇಕು; ಗಮ್ಯವಾದದಲ್ಲಿಗೆ ಸೇರಿಸಬೇಕು. ನಿರ್ಣಯಿಸಬೇಕಾದ ವಿಷಯಕ್ಕೆ ಆ ಕ್ಷಣದ ಗ್ರಹಸ್ಥಾನವನ್ನೇ ಗ್ರಹಿಸಬೇಕು. ಭಚಕ್ರ ಅಂಶ-ಲಿಪ್ತಗಳಲ್ಲಿ ಗಣನೆ; ಎಂಭತ್ತು ಅಂಶವರೆಗೆ ಪರಮ ದಕ್ಷಿಣ-ಉತ್ತರ ಮಿತಿ.
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).