{"id":"vidhyamitra:city-day:rishikesh:1982-08-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1982-08-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1982-08-31","date_display":"August 31, 1982 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":1982,"month":8,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445212.770833,"kali_year":5084,"ahargana":1856747.2708,"sun":{"sidereal_longitude":133.0725,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":272.4876,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":139.4151,"elapsed_within_tithi_degrees":7.4151},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":272.4876,"elapsed_within_degrees":5.8209},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":45.5601},"karana":{"half_tithi_index":23,"name":"Bālava"},"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":1982,"month":8,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2445212.770833,"ahargana":1856747.2708,"kali_year":5084,"ayanamsa_lahiri":23.6108,"grahas":{"sun":{"sidereal_longitude":133.71364799999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":274.15464799999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false,"latitude":-0.9265},"mars":{"sidereal_longitude":203.38754799999992,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":160.23604799999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":193.024448,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":116.96714800000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":175.63794800000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":80.5943,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":260.5943,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva 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":1982,"month":8,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445212.770833,"kali_year":5084,"ahargana":1856747.2708,"sun":{"sidereal_longitude":133.0725,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":272.4876,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":139.4151,"elapsed_within_tithi_degrees":7.4151},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":272.4876,"elapsed_within_degrees":5.8209},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":45.5601},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.926,"elongation":139.415},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.926,"opposition_distance":40.585}},"eclipse_window_40days":[]},"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":"05:52","sunsetLocal":"18:41","solarNoonLocal":"12:17","dayLengthHours":12.818233887125416,"dayLengthDisplay":"12 Hours 49 Mins 06 Secs","nightLengthDisplay":"11 Hours 10 Mins 54 Secs","moonriseLocal":"16:26","moonsetLocal":"02:51","rahuKala":{"name":"Rāhu Kāla","start":"15:29","end":"17:05","startHours":15.484291979724897,"endHours":17.086571215615574,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:05","end":"10:41","startHours":9.07517503616219,"endHours":10.677454272052866,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:17","end":"13:53","startHours":12.279733507943543,"endHours":13.88201274383422,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:17","startHours":8.8615378047101,"endHours":9.288812267614281,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:24","end":"06:45","startHours":6.404709643011062,"endHours":6.746529213334406,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:42","startHours":11.852459045039362,"endHours":12.707007970847725,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"05:01","startHours":4.1615187127641144,"endHours":5.016067638572475,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:48","end":"05:52","startHours":4.802430407120385,"endHours":5.870616564380836,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:16","startHours":14.416105822464448,"endHours":15.27065474827281,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:29","end":"18:53","startHours":18.488850451506252,"endHours":18.88885045150625,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:41","end":"19:13","startHours":18.68885045150625,"endHours":19.222943530136476,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:26","end":"20:11","startHours":18.43885045150625,"endHours":20.18885045150625,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:42","startHours":23.852459045039364,"endHours":24.707007970847723,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:52","end":"07:28","startHours":5.870616564380836,"endHours":7.472895800271513,"quality":"inauspicious"},{"name":"Udveg","start":"07:28","end":"09:05","startHours":7.472895800271513,"endHours":9.07517503616219,"quality":"inauspicious"},{"name":"Chala","start":"09:05","end":"10:41","startHours":9.07517503616219,"endHours":10.677454272052866,"quality":"neutral"},{"name":"Labha","start":"10:41","end":"12:17","startHours":10.677454272052866,"endHours":12.279733507943543,"quality":"auspicious"},{"name":"Amṛta","start":"12:17","end":"13:53","startHours":12.279733507943543,"endHours":13.88201274383422,"quality":"auspicious"},{"name":"Kāla","start":"13:53","end":"15:29","startHours":13.88201274383422,"endHours":15.484291979724897,"quality":"inauspicious"},{"name":"Śubha","start":"15:29","end":"17:05","startHours":15.484291979724897,"endHours":17.086571215615574,"quality":"auspicious"},{"name":"Roga","start":"17:05","end":"18:41","startHours":17.086571215615574,"endHours":18.68885045150625,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:41","end":"20:05","startHours":18.68885045150625,"endHours":20.086571215615574,"quality":"inauspicious"},{"name":"Śubha","start":"20:05","end":"21:29","startHours":20.086571215615574,"endHours":21.484291979724897,"quality":"auspicious"},{"name":"Roga","start":"21:29","end":"22:53","startHours":21.484291979724897,"endHours":22.88201274383422,"quality":"inauspicious"},{"name":"Udveg","start":"22:53","end":"00:17","startHours":22.88201274383422,"endHours":24.279733507943543,"quality":"inauspicious"},{"name":"Chala","start":"00:17","end":"01:41","startHours":24.279733507943543,"endHours":25.677454272052866,"quality":"neutral"},{"name":"Labha","start":"01:41","end":"03:05","startHours":25.677454272052866,"endHours":27.07517503616219,"quality":"auspicious"},{"name":"Amṛta","start":"03:05","end":"04:28","startHours":27.07517503616219,"endHours":28.472895800271512,"quality":"auspicious"},{"name":"Kāla","start":"04:28","end":"05:52","startHours":28.472895800271512,"endHours":29.870616564380835,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:52","end":"06:52","startHours":5.870616564380836,"endHours":6.870616564380836,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:52","end":"07:52","startHours":6.870616564380836,"endHours":7.870616564380836,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:52","end":"08:52","startHours":7.870616564380836,"endHours":8.870616564380835,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:52","end":"09:52","startHours":8.870616564380835,"endHours":9.870616564380835,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:52","end":"10:52","startHours":9.870616564380835,"endHours":10.870616564380835,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:52","end":"11:52","startHours":10.870616564380835,"endHours":11.870616564380835,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:52","end":"12:52","startHours":11.870616564380835,"endHours":12.870616564380835,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:52","end":"13:52","startHours":12.870616564380835,"endHours":13.870616564380835,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:52","end":"14:52","startHours":13.870616564380835,"endHours":14.870616564380835,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:52","end":"15:52","startHours":14.870616564380835,"endHours":15.870616564380835,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:52","end":"16:52","startHours":15.870616564380835,"endHours":16.870616564380835,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:52","end":"17:52","startHours":16.870616564380835,"endHours":17.870616564380835,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:52","end":"18:52","startHours":17.870616564380835,"endHours":18.870616564380835,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:52","end":"19:52","startHours":18.870616564380835,"endHours":19.870616564380835,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:52","end":"20:52","startHours":19.870616564380835,"endHours":20.870616564380835,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:52","end":"21:52","startHours":20.870616564380835,"endHours":21.870616564380835,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:52","end":"22:52","startHours":21.870616564380835,"endHours":22.870616564380835,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:52","end":"23:52","startHours":22.870616564380835,"endHours":23.870616564380835,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:52","end":"00:52","startHours":23.870616564380835,"endHours":24.870616564380835,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:52","end":"01:52","startHours":24.870616564380835,"endHours":25.870616564380835,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:52","end":"02:52","startHours":25.870616564380835,"endHours":26.870616564380835,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:52","end":"03:52","startHours":26.870616564380835,"endHours":27.870616564380835,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:52","end":"04:52","startHours":27.870616564380835,"endHours":28.870616564380835,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:52","end":"05:52","startHours":28.870616564380835,"endHours":29.870616564380835,"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":"Varṣā (Monsoon) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":8.819999814183328,"eotMinutes":0.14558952338733633,"ayanamsa":23.6108}},"calendars":{"vikram_samvat":2039,"vikram_samvatsara":"Yuva","saka_samvat":1904,"saka_samvatsara":"Dundubhi","bengali_samvat":1389,"malayalam_era":1158,"nanakshahi_year":513,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Dvādaśī · Vikram 2039 Yuva · Śaka 1904 Dundubhi"},"festivals":[{"id":"vamana-jayanti","name":"Vāmana Jayantī","name_sanskrit":"वामन जयन्ती","tradition":"Vaishnava","associated_deity":"Vāmana (5th daśāvatāra of Krishna)","deity_avatara_index":15,"significance":"Vāmana's three-step measure of all worlds; Bali's surrender. (= Onam in Kerala.)","vrata":true,"detection":{"tithi_number":12,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":2,"sources":["Bhāgavata 8.18-22"]},{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"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":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga August 31, 1982 CE · Ṛṣikeśa · Vidhyamitra","description":"August 31, 1982 CE for Ṛṣikeśa: Śukla Dvādaśī, sūryodaya 05:52, sūryāsta 18:41.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1982-08-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1982-08-31","sa":"https://sa.vidhyamitra.com/city/rishikesh/1982-08-31","hi":"https://hi.vidhyamitra.com/city/rishikesh/1982-08-31","x-default":"https://vidhyamitra.com/city/rishikesh/1982-08-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T08:31:53.725Z","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":"2026-05-18T08:31:53.725Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T08:31:53.725Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}