{"id":"vidhyamitra:city-day:rishikesh:1983-08-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1983-08-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1983-08-19","date_display":"August 19, 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":8,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445565.770833,"kali_year":5085,"ahargana":1857100.2708,"sun":{"sidereal_longitude":121.3015,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":249.2089,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":127.9075,"elapsed_within_tithi_degrees":7.9075},"nakshatra":{"number":19,"name":"Mūla","pada":3,"moon_longitude":249.2089,"elapsed_within_degrees":9.2089},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":10.5104},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"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":1983,"month":8,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2445565.770833,"ahargana":1857100.2708,"kali_year":5085,"ayanamsa_lahiri":23.6243,"grahas":{"sun":{"sidereal_longitude":121.89296100000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":251.82296100000008,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false,"latitude":-0.5726},"mars":{"sidereal_longitude":100.09086100000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":149.52646099999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":218.92546100000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":131.63766099999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":185.616761,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":61.8907,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":241.8907,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"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":8,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445565.770833,"kali_year":5085,"ahargana":1857100.2708,"sun":{"sidereal_longitude":121.3015,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":249.2089,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":127.9075,"elapsed_within_tithi_degrees":7.9075},"nakshatra":{"number":19,"name":"Mūla","pada":3,"moon_longitude":249.2089,"elapsed_within_degrees":9.2089},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":10.5104},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.573,"elongation":127.907},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.573,"opposition_distance":52.093}},"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":"05:45","sunsetLocal":"18:55","solarNoonLocal":"12:20","dayLengthHours":13.159119343460127,"dayLengthDisplay":"13 Hours 09 Mins 33 Secs","nightLengthDisplay":"10 Hours 50 Mins 27 Secs","moonriseLocal":"15:55","moonsetLocal":"02:05","rahuKala":{"name":"Rāhu Kāla","start":"10:42","end":"12:20","startHours":10.692161225506275,"endHours":12.337051143438792,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:38","end":"17:16","startHours":15.626830979303822,"endHours":17.27172089723634,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:24","end":"09:03","startHours":7.402381389641244,"endHours":9.047271307573759,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:16","startHours":8.827952651849424,"endHours":9.266589963298095,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:18","end":"06:39","startHours":6.305788111019567,"endHours":6.656697960178503,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:47","startHours":11.898413831990121,"endHours":12.775688454887463,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:00","end":"04:53","startHours":4.002942225914044,"endHours":4.880216848811386,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:40","end":"05:45","startHours":4.660898193087051,"endHours":5.757491471708728,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:32","end":"15:24","startHours":14.530237700682147,"endHours":15.407512323579489,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:43","end":"19:07","startHours":18.716610815168856,"endHours":19.116610815168855,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:55","end":"19:28","startHours":18.916610815168855,"endHours":19.464907454479693,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:40","end":"20:25","startHours":18.666610815168855,"endHours":20.416610815168855,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:47","startHours":23.898413831990123,"endHours":24.77568845488746,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:45","end":"07:24","startHours":5.757491471708728,"endHours":7.402381389641244,"quality":"neutral"},{"name":"Labha","start":"07:24","end":"09:03","startHours":7.402381389641244,"endHours":9.047271307573759,"quality":"auspicious"},{"name":"Amṛta","start":"09:03","end":"10:42","startHours":9.047271307573759,"endHours":10.692161225506275,"quality":"auspicious"},{"name":"Kāla","start":"10:42","end":"12:20","startHours":10.692161225506275,"endHours":12.337051143438792,"quality":"inauspicious"},{"name":"Śubha","start":"12:20","end":"13:59","startHours":12.337051143438792,"endHours":13.981941061371309,"quality":"auspicious"},{"name":"Roga","start":"13:59","end":"15:38","startHours":13.981941061371309,"endHours":15.626830979303822,"quality":"inauspicious"},{"name":"Udveg","start":"15:38","end":"17:16","startHours":15.626830979303822,"endHours":17.27172089723634,"quality":"inauspicious"},{"name":"Chala","start":"17:16","end":"18:55","startHours":17.27172089723634,"endHours":18.916610815168855,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:55","end":"20:16","startHours":18.916610815168855,"endHours":20.27172089723634,"quality":"inauspicious"},{"name":"Udveg","start":"20:16","end":"21:38","startHours":20.27172089723634,"endHours":21.626830979303826,"quality":"inauspicious"},{"name":"Chala","start":"21:38","end":"22:59","startHours":21.626830979303826,"endHours":22.98194106137131,"quality":"neutral"},{"name":"Labha","start":"22:59","end":"00:20","startHours":22.98194106137131,"endHours":24.337051143438792,"quality":"auspicious"},{"name":"Amṛta","start":"00:20","end":"01:42","startHours":24.337051143438792,"endHours":25.692161225506275,"quality":"auspicious"},{"name":"Kāla","start":"01:42","end":"03:03","startHours":25.692161225506275,"endHours":27.04727130757376,"quality":"inauspicious"},{"name":"Śubha","start":"03:03","end":"04:24","startHours":27.04727130757376,"endHours":28.402381389641246,"quality":"auspicious"},{"name":"Roga","start":"04:24","end":"05:45","startHours":28.402381389641246,"endHours":29.75749147170873,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:45","end":"06:45","startHours":5.757491471708728,"endHours":6.757491471708728,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:45","end":"07:45","startHours":6.757491471708728,"endHours":7.757491471708728,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:45","end":"08:45","startHours":7.757491471708728,"endHours":8.757491471708729,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:45","end":"09:45","startHours":8.757491471708729,"endHours":9.757491471708729,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:45","end":"10:45","startHours":9.757491471708729,"endHours":10.757491471708729,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:45","end":"11:45","startHours":10.757491471708729,"endHours":11.757491471708729,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:45","end":"12:45","startHours":11.757491471708729,"endHours":12.757491471708729,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:45","end":"13:45","startHours":12.757491471708729,"endHours":13.757491471708729,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:45","end":"14:45","startHours":13.757491471708729,"endHours":14.757491471708729,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:45","end":"15:45","startHours":14.757491471708729,"endHours":15.757491471708729,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:45","end":"16:45","startHours":15.757491471708729,"endHours":16.75749147170873,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:45","end":"17:45","startHours":16.75749147170873,"endHours":17.75749147170873,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:45","end":"18:45","startHours":17.75749147170873,"endHours":18.75749147170873,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:45","end":"19:45","startHours":18.75749147170873,"endHours":19.75749147170873,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:45","end":"20:45","startHours":19.75749147170873,"endHours":20.75749147170873,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:45","end":"21:45","startHours":20.75749147170873,"endHours":21.75749147170873,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:45","end":"22:45","startHours":21.75749147170873,"endHours":22.75749147170873,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:45","end":"23:45","startHours":22.75749147170873,"endHours":23.75749147170873,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:45","end":"00:45","startHours":23.75749147170873,"endHours":24.75749147170873,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:45","end":"01:45","startHours":24.75749147170873,"endHours":25.75749147170873,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:45","end":"02:45","startHours":25.75749147170873,"endHours":26.75749147170873,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:45","end":"03:45","startHours":26.75749147170873,"endHours":27.75749147170873,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:45","end":"04:45","startHours":27.75749147170873,"endHours":28.75749147170873,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:45","end":"05:45","startHours":28.75749147170873,"endHours":29.75749147170873,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":13.013427070399366,"eotMinutes":-3.2934686063275223,"ayanamsa":23.6243}},"calendars":{"vikram_samvat":2040,"vikram_samvatsara":"Dhātṛ","saka_samvat":1905,"saka_samvatsara":"Rudhirodgāri","bengali_samvat":1390,"malayalam_era":1159,"nanakshahi_year":514,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Ekādaśī · Vikram 2040 Dhātṛ · Śaka 1905 Rudhirodgāri"},"festivals":[{"id":"parsva-ekadashi","name":"Pārśva (Parivartinī) Ekādaśī","name_sanskrit":"पार्श्व एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu (turning side in yoga-nidrā)","significance":"Viṣṇu turns from one side to another in yoga-nidrā (mid-Cāturmāsya).","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":3},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5},{"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":"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":"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 19, 1983 CE · Ṛṣikeśa · Vidhyamitra","description":"August 19, 1983 CE for Ṛṣikeśa: Śukla Ekādaśī, sūryodaya 05:45, sūryāsta 18:55.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1983-08-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1983-08-19","sa":"https://sa.vidhyamitra.com/city/rishikesh/1983-08-19","hi":"https://hi.vidhyamitra.com/city/rishikesh/1983-08-19","x-default":"https://vidhyamitra.com/city/rishikesh/1983-08-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T17:23:09.978Z","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":"2026-05-18T17:23:09.978Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T17:23:09.978Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}