Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
भागयुक्तं च हीनं च व्ययनांशं तनुः कुजे । प्राक्पश्चान्नतनाडीभ्यस्तद्वल्लंकोदयासुभिः ॥ १५१ ॥
bhāgayuktaṃ ca hīnaṃ ca vyayanāṃśaṃ tanuḥ kuje | prākpaścānnatanāḍībhyastadvallaṃkodayāsubhiḥ || 151 ||
Quando Marte (Kuja) está no ascendente, deve-se calcular o ‘vyaya-aṃśa’ (porção de subtração/deficiência), tanto aumentado quanto diminuído pela fração requerida; do mesmo modo, ele é obtido das ‘nata-nāḍī’ orientais e ocidentais (medidas do gnômon/sombra) e, igualmente, dos ‘Laṅkā-udaya-asus’ (unidades-padrão do tempo de ascensão usadas como referência).
Sanatkumara (teaching to Narada in a technical Jyotisha/ganita passage)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It shows that Moksha-Dharma teaching in the Narada Purana also preserves Vedāṅga knowledge—disciplined time-reckoning and precise calculation—supporting correct timing for dharmic practice and study.
Indirectly: accurate Jyotiṣa calculation is presented as a supporting limb for dharma (right timing and order), which helps a devotee maintain steady sādhana; the verse itself is primarily technical rather than devotional.
Vedāṅga Jyotiṣa/astronomical computation: use of nata-nāḍī (gnomon/shadow-based measures), reference rising-time units (Laṅkā-udaya asu), and adjustment by fractional increase/decrease for determining a derived quantity (vyaya-aṃśa) when Mars is in the ascendant.