{"id":"vidhyamitra:day:2291-01-28:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/2291-01-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2291-01-28","date_display":"January 28, 2291 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2291,"month":1,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2557857.770833,"kali_year":5392,"ahargana":1969392.2708,"sun":{"sidereal_longitude":279.1434,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":241.2023,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":322.059,"elapsed_within_tithi_degrees":10.059},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":241.2023,"elapsed_within_degrees":1.2023},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":160.3457},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":2291,"month":1,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2557857.770833,"ahargana":1969392.2708,"kali_year":5392,"ayanamsa_lahiri":27.9191,"grahas":{"sun":{"sidereal_longitude":279.870581,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":242.628381,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false,"latitude":0.7096},"mars":{"sidereal_longitude":246.957581,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":291.446381,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":206.98178099999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":245.21908099999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":329.602181,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":232.1201,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":52.1201,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2291,"month":1,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2557857.770833,"kali_year":5392,"ahargana":1969392.2708,"sun":{"sidereal_longitude":279.1434,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":241.2023,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":322.059,"elapsed_within_tithi_degrees":10.059},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":241.2023,"elapsed_within_degrees":1.2023},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":160.3457},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.71,"elongation":37.941},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.71,"opposition_distance":142.059}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":2348,"vikram_samvatsara":"Tāraṇa","saka_samvat":2213,"saka_samvatsara":"Prajāpati","bengali_samvat":1698,"malayalam_era":1467,"nanakshahi_year":822,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Dvādaśī · Vikram 2348 Tāraṇa · Śaka 2213 Prajāpati"},"festivals":[],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"valid_from":"2291-01-28T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga January 28, 2291 CE · Vidhyamitra","description":"Vedic pañchāṅga for January 28, 2291 CE: Kṛṣṇa Dvādaśī · Mūla.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/2291-01-28","hreflang_alternates":{"en":"https://vidhyamitra.com/day/2291-01-28","sa":"https://sa.vidhyamitra.com/day/2291-01-28","hi":"https://hi.vidhyamitra.com/day/2291-01-28","x-default":"https://vidhyamitra.com/day/2291-01-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T13:16:21.794Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-06-01T13:16:21.794Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}