{"id":"vidhyamitra:city-day:mathura:1981-11-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mathura/1981-11-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-11-12","date_display":"November 12, 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":11,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444920.770833,"kali_year":5083,"ahargana":1856455.2708,"sun":{"sidereal_longitude":205.3853,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":25.9443,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":180.559,"elapsed_within_tithi_degrees":0.559},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4,"moon_longitude":25.9443,"elapsed_within_degrees":12.611},"yoga":{"number":18,"name":"Varīyān","sum_longitude":231.3296},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":11,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444920.770833,"ahargana":1856455.2708,"kali_year":5083,"ayanamsa_lahiri":23.5996,"grahas":{"sun":{"sidereal_longitude":205.97030500000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":27.433605,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false,"latitude":-4.2314},"mars":{"sidereal_longitude":139.142805,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":190.22470499999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":183.727805,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":253.35390500000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":173.302905,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":96.0659,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":276.0659,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"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":11,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444920.770833,"kali_year":5083,"ahargana":1856455.2708,"sun":{"sidereal_longitude":205.3853,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":25.9443,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":180.559,"elapsed_within_tithi_degrees":0.559},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4,"moon_longitude":25.9443,"elapsed_within_degrees":12.611},"yoga":{"number":18,"name":"Varīyān","sum_longitude":231.3296},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.231,"elongation":179.441},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.231,"opposition_distance":0.559}},"eclipse_window_40days":[]},"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:38","sunsetLocal":"17:30","solarNoonLocal":"12:04","dayLengthHours":10.864309611959488,"dayLengthDisplay":"10 Hours 51 Mins 52 Secs","nightLengthDisplay":"13 Hours 08 Mins 08 Secs","moonriseLocal":"17:28","moonsetLocal":"06:52","rahuKala":{"name":"Rāhu Kāla","start":"13:25","end":"14:47","startHours":13.422594083996376,"endHours":14.780632785491314,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:38","end":"07:59","startHours":6.632400576521698,"endHours":7.990439278016634,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:21","end":"10:42","startHours":9.34847797951157,"endHours":10.706516681006505,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:10","end":"09:32","startHours":9.167406152645578,"endHours":9.529549806377561,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:05","end":"07:22","startHours":7.085080143686676,"endHours":7.374795066672263,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:42","end":"12:26","startHours":11.702411728769457,"endHours":12.426699036233424,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:11","end":"05:54","startHours":5.183825961593766,"endHours":5.908113269057732,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:44","end":"06:38","startHours":5.72704144219174,"endHours":6.632400576521698,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:53","end":"14:36","startHours":13.875273651161356,"endHours":14.599560958625322,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:18","end":"17:42","startHours":17.296710188481185,"endHours":17.696710188481184,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:30","end":"17:57","startHours":17.496710188481185,"endHours":17.949389755646163,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:15","end":"19:00","startHours":17.246710188481185,"endHours":18.996710188481185,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:42","end":"00:26","startHours":23.702411728769455,"endHours":24.426699036233423,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:38","end":"07:59","startHours":6.632400576521698,"endHours":7.990439278016634,"quality":"auspicious"},{"name":"Roga","start":"07:59","end":"09:21","startHours":7.990439278016634,"endHours":9.34847797951157,"quality":"inauspicious"},{"name":"Udveg","start":"09:21","end":"10:42","startHours":9.34847797951157,"endHours":10.706516681006505,"quality":"inauspicious"},{"name":"Chala","start":"10:42","end":"12:04","startHours":10.706516681006505,"endHours":12.064555382501442,"quality":"neutral"},{"name":"Labha","start":"12:04","end":"13:25","startHours":12.064555382501442,"endHours":13.422594083996376,"quality":"auspicious"},{"name":"Amṛta","start":"13:25","end":"14:47","startHours":13.422594083996376,"endHours":14.780632785491314,"quality":"auspicious"},{"name":"Kāla","start":"14:47","end":"16:08","startHours":14.780632785491314,"endHours":16.13867148698625,"quality":"inauspicious"},{"name":"Śubha","start":"16:08","end":"17:30","startHours":16.13867148698625,"endHours":17.496710188481185,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:30","end":"19:08","startHours":17.496710188481185,"endHours":19.138671486986247,"quality":"auspicious"},{"name":"Kāla","start":"19:08","end":"20:47","startHours":19.138671486986247,"endHours":20.780632785491314,"quality":"inauspicious"},{"name":"Śubha","start":"20:47","end":"22:25","startHours":20.780632785491314,"endHours":22.422594083996376,"quality":"auspicious"},{"name":"Roga","start":"22:25","end":"00:04","startHours":22.422594083996376,"endHours":24.06455538250144,"quality":"inauspicious"},{"name":"Udveg","start":"00:04","end":"01:42","startHours":24.06455538250144,"endHours":25.706516681006505,"quality":"inauspicious"},{"name":"Chala","start":"01:42","end":"03:21","startHours":25.706516681006505,"endHours":27.348477979511568,"quality":"neutral"},{"name":"Labha","start":"03:21","end":"04:59","startHours":27.348477979511568,"endHours":28.99043927801663,"quality":"auspicious"},{"name":"Amṛta","start":"04:59","end":"06:38","startHours":28.99043927801663,"endHours":30.632400576521697,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:38","end":"07:38","startHours":6.632400576521698,"endHours":7.632400576521698,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:38","end":"08:38","startHours":7.632400576521698,"endHours":8.632400576521697,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:38","end":"09:38","startHours":8.632400576521697,"endHours":9.632400576521697,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:38","end":"10:38","startHours":9.632400576521697,"endHours":10.632400576521697,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:38","end":"11:38","startHours":10.632400576521697,"endHours":11.632400576521697,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:38","end":"12:38","startHours":11.632400576521697,"endHours":12.632400576521697,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:38","end":"13:38","startHours":12.632400576521697,"endHours":13.632400576521697,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:38","end":"14:38","startHours":13.632400576521697,"endHours":14.632400576521697,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:38","end":"15:38","startHours":14.632400576521697,"endHours":15.632400576521697,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:38","end":"16:38","startHours":15.632400576521697,"endHours":16.632400576521697,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:38","end":"17:38","startHours":16.632400576521697,"endHours":17.632400576521697,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:38","end":"18:38","startHours":17.632400576521697,"endHours":18.632400576521697,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:38","end":"19:38","startHours":18.632400576521697,"endHours":19.632400576521697,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:38","end":"20:38","startHours":19.632400576521697,"endHours":20.632400576521697,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:38","end":"21:38","startHours":20.632400576521697,"endHours":21.632400576521697,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:38","end":"22:38","startHours":21.632400576521697,"endHours":22.632400576521697,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:38","end":"23:38","startHours":22.632400576521697,"endHours":23.632400576521697,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:38","end":"00:38","startHours":23.632400576521697,"endHours":24.632400576521697,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:38","end":"01:38","startHours":24.632400576521697,"endHours":25.632400576521697,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:38","end":"02:38","startHours":25.632400576521697,"endHours":26.632400576521697,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:38","end":"03:38","startHours":26.632400576521697,"endHours":27.632400576521697,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:38","end":"04:38","startHours":27.632400576521697,"endHours":28.632400576521697,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:38","end":"05:38","startHours":28.632400576521697,"endHours":29.632400576521697,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:38","end":"06:38","startHours":29.632400576521697,"endHours":30.632400576521697,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-17.623033791243696,"eotMinutes":15.431877049913563,"ayanamsa":23.5996}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Pratipada · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"tula-sankranti","name":"Tulā Saṅkrānti","name_sanskrit":"तुला सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Libra.","vrata":false,"detection":{"sun_rashi":"Tulā"},"precedence":5}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"mathura"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga November 12, 1981 CE · Mathurā · Vidhyamitra","description":"November 12, 1981 CE for Mathurā: Kṛṣṇa Pratipada, sūryodaya 06:38, sūryāsta 17:30.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mathura/1981-11-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mathura/1981-11-12","sa":"https://sa.vidhyamitra.com/city/mathura/1981-11-12","hi":"https://hi.vidhyamitra.com/city/mathura/1981-11-12","x-default":"https://vidhyamitra.com/city/mathura/1981-11-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T14:43:44.102Z","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":"2026-05-14T14:43:44.102Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T14:43:44.102Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}