Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
दोर्ज्योत्तरगुणाभुक्तिस्तत्त्वनेत्रोद्धृता पुनः । स्वमंदपरिधिक्षुण्णा भगणांशोद्धृताःकलाः ॥ ११६ ॥
dorjyottaraguṇābhuktistattvanetroddhṛtā punaḥ | svamaṃdaparidhikṣuṇṇā bhagaṇāṃśoddhṛtāḥkalāḥ || 116 ||
继而,将以较高之古那(guṇa)施于弦而得之弧量(bhukti),复以“真理之眼”(tattva-netra)之法再行抽取;再以自身之慢行修正(manda)与周界校定后,由行星周期之相应分量(bhagaṇa-aṃśa)推得诸分(kalāḥ)。
Sanatkumara (in instruction to Narada on technical calculation)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It frames precise time-reckoning (kāla-nirṇaya) as a disciplined śāstric tool—supporting correct observance of dharma (vrata, tithi, muhūrta) that ultimately aids steadiness of mind on the path of mokṣa.
Indirectly: by teaching accurate calendrical/astronomical computation, it safeguards correct timing of Vaiṣṇava observances (fasts, pūjā, festivals), which strengthens regular bhakti practice through properly aligned ritual time.
Vedāṅga Jyotiṣa: computational astronomy—using chord-based measures, manda (anomaly) correction, circumference relations, and converting bhagaṇa portions into kalā (minutes) for precise planetary/time calculations.