{"id":"vidhyamitra:city-day:ranchi:1981-12-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ranchi/1981-12-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-12-01","date_display":"December 1, 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":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444939.770833,"kali_year":5083,"ahargana":1856474.2708,"sun":{"sidereal_longitude":224.7032,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":276.5975,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":51.8943,"elapsed_within_tithi_degrees":3.8943},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3,"moon_longitude":276.5975,"elapsed_within_degrees":9.9308},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":141.3007},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":12,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444939.770833,"ahargana":1856474.2708,"kali_year":5083,"ayanamsa_lahiri":23.6004,"grahas":{"sun":{"sidereal_longitude":225.160079,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":273.3644790000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false,"latitude":-0.1207},"mars":{"sidereal_longitude":149.26097900000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":220.010179,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":187.56957899999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":270.78167899999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":175.25177899999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":95.0592,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":275.0592,"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":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444939.770833,"kali_year":5083,"ahargana":1856474.2708,"sun":{"sidereal_longitude":224.7032,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":276.5975,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":51.8943,"elapsed_within_tithi_degrees":3.8943},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3,"moon_longitude":276.5975,"elapsed_within_degrees":9.9308},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":141.3007},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.121,"elongation":51.894},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.121,"opposition_distance":128.106}},"eclipse_window_40days":[]},"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"sunriseLocal":"06:14","sunsetLocal":"17:03","solarNoonLocal":"11:39","dayLengthHours":10.809394798718394,"dayLengthDisplay":"10 Hours 48 Mins 34 Secs","nightLengthDisplay":"13 Hours 11 Mins 26 Secs","moonriseLocal":"09:26","moonsetLocal":"20:17","rahuKala":{"name":"Rāhu Kāla","start":"14:21","end":"15:42","startHours":14.346191189672922,"endHours":15.697365539512724,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:56","end":"10:18","startHours":8.941493790313725,"endHours":10.292668140153525,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:39","end":"13:00","startHours":11.643842489993325,"endHours":12.995016839833124,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:46","end":"09:07","startHours":8.761337210335086,"endHours":9.121650370292366,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:41","end":"06:59","startHours":6.689536540580727,"endHours":6.977787068546551,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:17","end":"12:00","startHours":11.283529330036046,"endHours":12.004155649950604,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:48","end":"05:31","startHours":4.7978924508050085,"endHours":5.5185187707195675,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:20","end":"06:14","startHours":5.338362190740928,"endHours":6.2391450906341275,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:27","end":"14:10","startHours":13.445408289779724,"endHours":14.166034609694284,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:51","end":"17:15","startHours":16.848539889352523,"endHours":17.24853988935252,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:03","end":"17:30","startHours":17.048539889352522,"endHours":17.498931339299123,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:48","end":"18:33","startHours":16.798539889352522,"endHours":18.548539889352522,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:17","end":"00:00","startHours":23.283529330036046,"endHours":24.004155649950604,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:14","end":"07:35","startHours":6.2391450906341275,"endHours":7.590319440473927,"quality":"inauspicious"},{"name":"Udveg","start":"07:35","end":"08:56","startHours":7.590319440473927,"endHours":8.941493790313725,"quality":"inauspicious"},{"name":"Chala","start":"08:56","end":"10:18","startHours":8.941493790313725,"endHours":10.292668140153525,"quality":"neutral"},{"name":"Labha","start":"10:18","end":"11:39","startHours":10.292668140153525,"endHours":11.643842489993325,"quality":"auspicious"},{"name":"Amṛta","start":"11:39","end":"13:00","startHours":11.643842489993325,"endHours":12.995016839833124,"quality":"auspicious"},{"name":"Kāla","start":"13:00","end":"14:21","startHours":12.995016839833124,"endHours":14.346191189672922,"quality":"inauspicious"},{"name":"Śubha","start":"14:21","end":"15:42","startHours":14.346191189672922,"endHours":15.697365539512724,"quality":"auspicious"},{"name":"Roga","start":"15:42","end":"17:03","startHours":15.697365539512724,"endHours":17.048539889352522,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:03","end":"18:42","startHours":17.048539889352522,"endHours":18.697365539512724,"quality":"inauspicious"},{"name":"Śubha","start":"18:42","end":"20:21","startHours":18.697365539512724,"endHours":20.346191189672922,"quality":"auspicious"},{"name":"Roga","start":"20:21","end":"22:00","startHours":20.346191189672922,"endHours":21.995016839833124,"quality":"inauspicious"},{"name":"Udveg","start":"22:00","end":"23:39","startHours":21.995016839833124,"endHours":23.643842489993325,"quality":"inauspicious"},{"name":"Chala","start":"23:39","end":"01:18","startHours":23.643842489993325,"endHours":25.292668140153527,"quality":"neutral"},{"name":"Labha","start":"01:18","end":"02:56","startHours":25.292668140153527,"endHours":26.94149379031373,"quality":"auspicious"},{"name":"Amṛta","start":"02:56","end":"04:35","startHours":26.94149379031373,"endHours":28.590319440473927,"quality":"auspicious"},{"name":"Kāla","start":"04:35","end":"06:14","startHours":28.590319440473927,"endHours":30.23914509063413,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:14","end":"07:14","startHours":6.2391450906341275,"endHours":7.2391450906341275,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:14","end":"08:14","startHours":7.2391450906341275,"endHours":8.239145090634128,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:14","end":"09:14","startHours":8.239145090634128,"endHours":9.239145090634128,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:14","end":"10:14","startHours":9.239145090634128,"endHours":10.239145090634128,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:14","end":"11:14","startHours":10.239145090634128,"endHours":11.239145090634128,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:14","end":"12:14","startHours":11.239145090634128,"endHours":12.239145090634128,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:14","end":"13:14","startHours":12.239145090634128,"endHours":13.239145090634128,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:14","end":"14:14","startHours":13.239145090634128,"endHours":14.239145090634128,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:14","end":"15:14","startHours":14.239145090634128,"endHours":15.239145090634128,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:14","end":"16:14","startHours":15.239145090634128,"endHours":16.23914509063413,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:14","end":"17:14","startHours":16.23914509063413,"endHours":17.23914509063413,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:14","end":"18:14","startHours":17.23914509063413,"endHours":18.23914509063413,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:14","end":"19:14","startHours":18.23914509063413,"endHours":19.23914509063413,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:14","end":"20:14","startHours":19.23914509063413,"endHours":20.23914509063413,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:14","end":"21:14","startHours":20.23914509063413,"endHours":21.23914509063413,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:14","end":"22:14","startHours":21.23914509063413,"endHours":22.23914509063413,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:14","end":"23:14","startHours":22.23914509063413,"endHours":23.23914509063413,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:14","end":"00:14","startHours":23.23914509063413,"endHours":24.23914509063413,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:14","end":"01:14","startHours":24.23914509063413,"endHours":25.23914509063413,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:14","end":"02:14","startHours":25.23914509063413,"endHours":26.23914509063413,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:14","end":"03:14","startHours":26.23914509063413,"endHours":27.23914509063413,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:14","end":"04:14","startHours":27.23914509063413,"endHours":28.23914509063413,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:14","end":"05:14","startHours":28.23914509063413,"endHours":29.23914509063413,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:14","end":"06:14","startHours":29.23914509063413,"endHours":30.23914509063413,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Ānanda","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-21.759790397531212,"eotMinutes":10.131050600400467,"ayanamsa":23.6004}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Pañcamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"vrischika-sankranti","name":"Vṛścika Saṅkrānti","name_sanskrit":"वृश्चिक सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Scorpio.","vrata":false,"detection":{"sun_rashi":"Vṛścika"},"precedence":5}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"ranchi"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 1, 1981 CE · Ranchi, Jharkhand · Vidhyamitra","description":"December 1, 1981 CE for Ranchi, Jharkhand: Śukla Pañcamī, sūryodaya 06:14, sūryāsta 17:03.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ranchi/1981-12-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ranchi/1981-12-01","sa":"https://sa.vidhyamitra.com/city/ranchi/1981-12-01","hi":"https://hi.vidhyamitra.com/city/ranchi/1981-12-01","x-default":"https://vidhyamitra.com/city/ranchi/1981-12-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T09:39:43.385Z","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":"2026-05-18T09:39:43.385Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T09:39:43.385Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}