{"id":"vidhyamitra:city-day:rishikesh:1983-12-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1983-12-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1983-12-01","date_display":"December 1, 1983 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":1983,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445669.770833,"kali_year":5085,"ahargana":1857204.2708,"sun":{"sidereal_longitude":224.1747,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":181.5665,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":317.3918,"elapsed_within_tithi_degrees":5.3918},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":181.5665,"elapsed_within_degrees":8.2331},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":45.7412},"karana":{"half_tithi_index":52,"name":"Kaulava"},"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":1983,"month":12,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2445669.770833,"ahargana":1857204.2708,"kali_year":5085,"ayanamsa_lahiri":23.6283,"grahas":{"sun":{"sidereal_longitude":224.639587,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":181.44918699999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false,"latitude":3.6765},"mars":{"sidereal_longitude":163.950787,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":241.78438699999992,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":236.17318699999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":180.148187,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":196.86668699999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":56.3802,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":236.3802,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","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":1983,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445669.770833,"kali_year":5085,"ahargana":1857204.2708,"sun":{"sidereal_longitude":224.1747,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":181.5665,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":317.3918,"elapsed_within_tithi_degrees":5.3918},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":181.5665,"elapsed_within_degrees":8.2331},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":45.7412},"karana":{"half_tithi_index":52,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.677,"elongation":42.608},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.677,"opposition_distance":137.392}},"eclipse_window_40days":[{"offset_days":19,"type":"lunar","occurs":true,"moon_latitude":0.497,"opposition_distance":1.914}]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"06:56","sunsetLocal":"17:18","solarNoonLocal":"12:07","dayLengthHours":10.365902483340935,"dayLengthDisplay":"10 Hours 21 Mins 57 Secs","nightLengthDisplay":"13 Hours 38 Mins 03 Secs","moonriseLocal":"03:34","moonsetLocal":"14:54","rahuKala":{"name":"Rāhu Kāla","start":"13:25","end":"14:42","startHours":13.409046967077607,"endHours":14.704784777495226,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:56","end":"08:14","startHours":6.930357914989524,"endHours":8.226095725407141,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:31","end":"10:49","startHours":9.521833535824758,"endHours":10.817571346242374,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:21","end":"09:42","startHours":9.349068494435741,"endHours":9.694598577213773,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:22","end":"07:38","startHours":7.362270518462063,"endHours":7.6386945846844885,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:28","startHours":11.767779073881961,"endHours":12.458839239438024,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:33","end":"06:14","startHours":5.548237583877399,"endHours":6.239297749433462,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:04","end":"06:56","startHours":6.066532708044446,"endHours":6.930357914989524,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:50","end":"14:32","startHours":13.840959570550147,"endHours":14.532019736106209,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:06","end":"17:30","startHours":17.09626039833046,"endHours":17.49626039833046,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:18","end":"17:44","startHours":17.29626039833046,"endHours":17.728173001803,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:03","end":"18:48","startHours":17.04626039833046,"endHours":18.79626039833046,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:28","startHours":23.767779073881965,"endHours":24.458839239438024,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:56","end":"08:14","startHours":6.930357914989524,"endHours":8.226095725407141,"quality":"auspicious"},{"name":"Roga","start":"08:14","end":"09:31","startHours":8.226095725407141,"endHours":9.521833535824758,"quality":"inauspicious"},{"name":"Udveg","start":"09:31","end":"10:49","startHours":9.521833535824758,"endHours":10.817571346242374,"quality":"inauspicious"},{"name":"Chala","start":"10:49","end":"12:07","startHours":10.817571346242374,"endHours":12.11330915665999,"quality":"neutral"},{"name":"Labha","start":"12:07","end":"13:25","startHours":12.11330915665999,"endHours":13.409046967077607,"quality":"auspicious"},{"name":"Amṛta","start":"13:25","end":"14:42","startHours":13.409046967077607,"endHours":14.704784777495226,"quality":"auspicious"},{"name":"Kāla","start":"14:42","end":"16:00","startHours":14.704784777495226,"endHours":16.000522587912844,"quality":"inauspicious"},{"name":"Śubha","start":"16:00","end":"17:18","startHours":16.000522587912844,"endHours":17.29626039833046,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:18","end":"19:00","startHours":17.29626039833046,"endHours":19.000522587912844,"quality":"auspicious"},{"name":"Kāla","start":"19:00","end":"20:42","startHours":19.000522587912844,"endHours":20.704784777495227,"quality":"inauspicious"},{"name":"Śubha","start":"20:42","end":"22:25","startHours":20.704784777495227,"endHours":22.409046967077607,"quality":"auspicious"},{"name":"Roga","start":"22:25","end":"00:07","startHours":22.409046967077607,"endHours":24.113309156659994,"quality":"inauspicious"},{"name":"Udveg","start":"00:07","end":"01:49","startHours":24.113309156659994,"endHours":25.817571346242374,"quality":"inauspicious"},{"name":"Chala","start":"01:49","end":"03:31","startHours":25.817571346242374,"endHours":27.521833535824758,"quality":"neutral"},{"name":"Labha","start":"03:31","end":"05:14","startHours":27.521833535824758,"endHours":29.22609572540714,"quality":"auspicious"},{"name":"Amṛta","start":"05:14","end":"06:56","startHours":29.22609572540714,"endHours":30.930357914989525,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:56","end":"07:56","startHours":6.930357914989524,"endHours":7.930357914989524,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:56","end":"08:56","startHours":7.930357914989524,"endHours":8.930357914989525,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:56","end":"09:56","startHours":8.930357914989525,"endHours":9.930357914989525,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:56","end":"10:56","startHours":9.930357914989525,"endHours":10.930357914989525,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:56","end":"11:56","startHours":10.930357914989525,"endHours":11.930357914989525,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:56","end":"12:56","startHours":11.930357914989525,"endHours":12.930357914989525,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:56","end":"13:56","startHours":12.930357914989525,"endHours":13.930357914989525,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:56","end":"14:56","startHours":13.930357914989525,"endHours":14.930357914989525,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:56","end":"15:56","startHours":14.930357914989525,"endHours":15.930357914989525,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:56","end":"16:56","startHours":15.930357914989525,"endHours":16.930357914989525,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:56","end":"17:56","startHours":16.930357914989525,"endHours":17.930357914989525,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:56","end":"18:56","startHours":17.930357914989525,"endHours":18.930357914989525,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:56","end":"19:56","startHours":18.930357914989525,"endHours":19.930357914989525,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:56","end":"20:56","startHours":19.930357914989525,"endHours":20.930357914989525,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:56","end":"21:56","startHours":20.930357914989525,"endHours":21.930357914989525,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:56","end":"22:56","startHours":21.930357914989525,"endHours":22.930357914989525,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:56","end":"23:56","startHours":22.930357914989525,"endHours":23.930357914989525,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:56","end":"00:56","startHours":23.930357914989525,"endHours":24.930357914989525,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:56","end":"01:56","startHours":24.930357914989525,"endHours":25.930357914989525,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:56","end":"02:56","startHours":25.930357914989525,"endHours":26.930357914989525,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:56","end":"03:56","startHours":26.930357914989525,"endHours":27.930357914989525,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:56","end":"04:56","startHours":27.930357914989525,"endHours":28.930357914989525,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:56","end":"05:56","startHours":28.930357914989525,"endHours":29.930357914989525,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:56","end":"06:56","startHours":29.930357914989525,"endHours":30.930357914989525,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"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":-21.682546228726466,"eotMinutes":10.131050600400467,"ayanamsa":23.6283}},"calendars":{"vikram_samvat":2040,"vikram_samvatsara":"Dhātṛ","saka_samvat":1905,"saka_samvatsara":"Rudhirodgāri","bengali_samvat":1390,"malayalam_era":1159,"nanakshahi_year":514,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Kṛṣṇa Dvādaśī · Vikram 2040 Dhātṛ · Śaka 1905 Rudhirodgāri"},"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":"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":"rishikesh"},"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, 1983 CE · Ṛṣikeśa · Vidhyamitra","description":"December 1, 1983 CE for Ṛṣikeśa: Kṛṣṇa Dvādaśī, sūryodaya 06:56, sūryāsta 17:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1983-12-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1983-12-01","sa":"https://sa.vidhyamitra.com/city/rishikesh/1983-12-01","hi":"https://hi.vidhyamitra.com/city/rishikesh/1983-12-01","x-default":"https://vidhyamitra.com/city/rishikesh/1983-12-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T11:13:24.695Z","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":"2026-05-18T11:13:24.695Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T11:13:24.695Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}