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 ||
ଯାହା ଗତ ହୋଇଛି ତାହାରୁ ବିୟୋଗ କରିବା ଉଚିତ, ଏବଂ ଯାହା ପ୍ରାପ୍ୟ ତାହାରେ ଯୋଗ କରିବା ଉଚିତ। ନିର୍ଣ୍ଣୟ ପାଇଁ ସେହି କ୍ଷଣର ଗ୍ରହସ୍ଥିତି ଗ୍ରହଣୀୟ। ଭଚକ୍ର ଅଂଶ-ଲିପ୍ତରେ ଗଣିତ; ଅଶୀ ଅଂଶ ପର୍ଯ୍ୟନ୍ତ ପରମ ଦକ୍ଷିଣ-ଉତ୍ତର ସୀମା।
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).