{"id":"vidhyamitra:city-day:badrinath:1981-05-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/badrinath/1981-05-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-05-15","date_display":"May 15, 1981 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":1981,"month":5,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444739.770833,"kali_year":5083,"ahargana":1856274.2708,"sun":{"sidereal_longitude":30.5662,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":165.4217,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":134.8555,"elapsed_within_tithi_degrees":2.8555},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":165.4217,"elapsed_within_degrees":5.4217},"yoga":{"number":15,"name":"Vajra","sum_longitude":195.9879},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1981,"month":5,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444739.770833,"ahargana":1856274.2708,"kali_year":5083,"ayanamsa_lahiri":23.5927,"grahas":{"sun":{"sidereal_longitude":30.541020000000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":167.19792000000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false,"latitude":3.8869},"mars":{"sidereal_longitude":21.304419999999993,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":49.058220000000006,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":157.25941999999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":40.64262000000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":159.53912000000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":105.6561,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":285.6561,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"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":1981,"month":5,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444739.770833,"kali_year":5083,"ahargana":1856274.2708,"sun":{"sidereal_longitude":30.5662,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":165.4217,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":134.8555,"elapsed_within_tithi_degrees":2.8555},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":165.4217,"elapsed_within_degrees":5.4217},"yoga":{"number":15,"name":"Vajra","sum_longitude":195.9879},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.887,"elongation":134.855},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.887,"opposition_distance":45.145}},"eclipse_window_40days":[]},"city":{"slug":"badrinath","name":"Badarīnāth","lat":30.7433,"lon":79.4938,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha","elevation_m":3133},"tier2":{"city":{"slug":"badrinath","name":"Badarīnāth","lat":30.7433,"lon":79.4938,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha","elevation_m":3133},"sunriseLocal":"05:17","sunsetLocal":"18:59","solarNoonLocal":"12:08","dayLengthHours":13.697546875600331,"dayLengthDisplay":"13 Hours 41 Mins 51 Secs","nightLengthDisplay":"10 Hours 18 Mins 09 Secs","moonriseLocal":"15:22","moonsetLocal":"03:07","rahuKala":{"name":"Rāhu Kāla","start":"10:26","end":"12:08","startHours":10.425616624951191,"endHours":12.137809984401233,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:34","end":"17:16","startHours":15.562196703301314,"endHours":17.27439006275136,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:00","end":"08:43","startHours":7.001229906051108,"endHours":8.713423265501149,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:29","end":"08:57","startHours":8.485130817574477,"endHours":8.941715713427822,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:52","end":"06:14","startHours":5.859767666417747,"endHours":6.225035583100423,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:36","startHours":11.681225088547889,"endHours":12.594394880254578,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:28","end":"04:23","startHours":3.4626969631876894,"endHours":4.375866754894378,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:09","end":"05:17","startHours":4.147574306967706,"endHours":5.289036546601067,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:20","startHours":14.420734463667955,"endHours":15.333904255374645,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:47","end":"19:11","startHours":18.7865834222014,"endHours":19.186583422201398,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:59","end":"19:33","startHours":18.9865834222014,"endHours":19.55731454201808,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:44","end":"20:29","startHours":18.7365834222014,"endHours":20.4865834222014,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:36","startHours":23.68122508854789,"endHours":24.594394880254576,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:17","end":"07:00","startHours":5.289036546601067,"endHours":7.001229906051108,"quality":"neutral"},{"name":"Labha","start":"07:00","end":"08:43","startHours":7.001229906051108,"endHours":8.713423265501149,"quality":"auspicious"},{"name":"Amṛta","start":"08:43","end":"10:26","startHours":8.713423265501149,"endHours":10.425616624951191,"quality":"auspicious"},{"name":"Kāla","start":"10:26","end":"12:08","startHours":10.425616624951191,"endHours":12.137809984401233,"quality":"inauspicious"},{"name":"Śubha","start":"12:08","end":"13:51","startHours":12.137809984401233,"endHours":13.850003343851274,"quality":"auspicious"},{"name":"Roga","start":"13:51","end":"15:34","startHours":13.850003343851274,"endHours":15.562196703301314,"quality":"inauspicious"},{"name":"Udveg","start":"15:34","end":"17:16","startHours":15.562196703301314,"endHours":17.27439006275136,"quality":"inauspicious"},{"name":"Chala","start":"17:16","end":"18:59","startHours":17.27439006275136,"endHours":18.9865834222014,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:59","end":"20:16","startHours":18.9865834222014,"endHours":20.27439006275136,"quality":"inauspicious"},{"name":"Udveg","start":"20:16","end":"21:34","startHours":20.27439006275136,"endHours":21.562196703301318,"quality":"inauspicious"},{"name":"Chala","start":"21:34","end":"22:51","startHours":21.562196703301318,"endHours":22.850003343851274,"quality":"neutral"},{"name":"Labha","start":"22:51","end":"00:08","startHours":22.850003343851274,"endHours":24.137809984401233,"quality":"auspicious"},{"name":"Amṛta","start":"00:08","end":"01:26","startHours":24.137809984401233,"endHours":25.425616624951193,"quality":"auspicious"},{"name":"Kāla","start":"01:26","end":"02:43","startHours":25.425616624951193,"endHours":26.71342326550115,"quality":"inauspicious"},{"name":"Śubha","start":"02:43","end":"04:00","startHours":26.71342326550115,"endHours":28.00122990605111,"quality":"auspicious"},{"name":"Roga","start":"04:00","end":"05:17","startHours":28.00122990605111,"endHours":29.289036546601068,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:17","end":"06:17","startHours":5.289036546601067,"endHours":6.289036546601067,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:17","end":"07:17","startHours":6.289036546601067,"endHours":7.289036546601067,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:17","end":"08:17","startHours":7.289036546601067,"endHours":8.289036546601068,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:17","end":"09:17","startHours":8.289036546601068,"endHours":9.289036546601068,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:17","end":"10:17","startHours":9.289036546601068,"endHours":10.289036546601068,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:17","end":"11:17","startHours":10.289036546601068,"endHours":11.289036546601068,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:17","end":"12:17","startHours":11.289036546601068,"endHours":12.289036546601068,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:17","end":"13:17","startHours":12.289036546601068,"endHours":13.289036546601068,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:17","end":"14:17","startHours":13.289036546601068,"endHours":14.289036546601068,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:17","end":"15:17","startHours":14.289036546601068,"endHours":15.289036546601068,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:17","end":"16:17","startHours":15.289036546601068,"endHours":16.289036546601068,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:17","end":"17:17","startHours":16.289036546601068,"endHours":17.289036546601068,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:17","end":"18:17","startHours":17.289036546601068,"endHours":18.289036546601068,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:17","end":"19:17","startHours":18.289036546601068,"endHours":19.289036546601068,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:17","end":"20:17","startHours":19.289036546601068,"endHours":20.289036546601068,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:17","end":"21:17","startHours":20.289036546601068,"endHours":21.289036546601068,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:17","end":"22:17","startHours":21.289036546601068,"endHours":22.289036546601068,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:17","end":"23:17","startHours":22.289036546601068,"endHours":23.289036546601068,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:17","end":"00:17","startHours":23.289036546601068,"endHours":24.289036546601068,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:17","end":"01:17","startHours":24.289036546601068,"endHours":25.289036546601068,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:17","end":"02:17","startHours":25.289036546601068,"endHours":26.289036546601068,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:17","end":"03:17","startHours":26.289036546601068,"endHours":27.289036546601068,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:17","end":"04:17","startHours":27.289036546601068,"endHours":28.289036546601068,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:17","end":"05:17","startHours":28.289036546601068,"endHours":29.289036546601068,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"South-East","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":18.803108563939258,"eotMinutes":3.7562009359260493,"ayanamsa":23.5927}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Dvādaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"badrinath"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 15, 1981 CE · Badarīnāth · Vidhyamitra","description":"May 15, 1981 CE for Badarīnāth: Śukla Dvādaśī, sūryodaya 05:17, sūryāsta 18:59.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/badrinath/1981-05-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/badrinath/1981-05-15","sa":"https://sa.vidhyamitra.com/city/badrinath/1981-05-15","hi":"https://hi.vidhyamitra.com/city/badrinath/1981-05-15","x-default":"https://vidhyamitra.com/city/badrinath/1981-05-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T11:04:50.622Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-05-31T11:04:50.622Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T11:04:50.622Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}