{"id":"vidhyamitra:city-day:rishikesh:1983-09-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1983-09-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1983-09-21","date_display":"September 21, 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":9,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445598.770833,"kali_year":5085,"ahargana":1857133.2708,"sun":{"sidereal_longitude":153.1803,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":318.9837,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":165.8034,"elapsed_within_tithi_degrees":9.8034},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":318.9837,"elapsed_within_degrees":12.317},"yoga":{"number":9,"name":"Śūla","sum_longitude":112.164},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":9,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2445598.770833,"ahargana":1857133.2708,"kali_year":5085,"ayanamsa_lahiri":23.6256,"grahas":{"sun":{"sidereal_longitude":153.87789999999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":320.0412,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false,"latitude":-4.4148},"mars":{"sidereal_longitude":121.04200000000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":144.30899999999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":222.39200000000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":120.25810000000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":188.60490000000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":60.1422,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":240.1422,"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":9,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445598.770833,"kali_year":5085,"ahargana":1857133.2708,"sun":{"sidereal_longitude":153.1803,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":318.9837,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":165.8034,"elapsed_within_tithi_degrees":9.8034},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":318.9837,"elapsed_within_degrees":12.317},"yoga":{"number":9,"name":"Śūla","sum_longitude":112.164},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.415,"elongation":165.803},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.415,"opposition_distance":14.197}},"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":"06:03","sunsetLocal":"18:15","solarNoonLocal":"12:09","dayLengthHours":12.205092361871163,"dayLengthDisplay":"12 Hours 12 Mins 18 Secs","nightLengthDisplay":"11 Hours 47 Mins 42 Secs","moonriseLocal":"17:26","moonsetLocal":"05:02","rahuKala":{"name":"Rāhu Kāla","start":"12:09","end":"13:41","startHours":12.153617876621059,"endHours":13.679254421854953,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:35","end":"09:06","startHours":7.576708240919372,"endHours":9.102344786153267,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:38","end":"12:09","startHours":10.627981331387161,"endHours":12.153617876621059,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.898926580122081,"endHours":9.305762992184453,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:34","end":"06:53","startHours":6.559617210763442,"endHours":6.88508634041334,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:45","end":"12:34","startHours":11.746781464558685,"endHours":12.56045428868343,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:25","end":"05:14","startHours":4.423726047435988,"endHours":5.237398871560733,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:02","end":"06:03","startHours":5.033980665529547,"endHours":6.051071695685477,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:00","startHours":14.187799936932919,"endHours":15.001472761057663,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:03","end":"18:27","startHours":18.05616405755664,"endHours":18.456164057556638,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:15","end":"18:46","startHours":18.25616405755664,"endHours":18.764709572634604,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:00","end":"19:45","startHours":18.00616405755664,"endHours":19.75616405755664,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:45","end":"00:34","startHours":23.746781464558683,"endHours":24.560454288683427,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:03","end":"07:35","startHours":6.051071695685477,"endHours":7.576708240919372,"quality":"auspicious"},{"name":"Amṛta","start":"07:35","end":"09:06","startHours":7.576708240919372,"endHours":9.102344786153267,"quality":"auspicious"},{"name":"Kāla","start":"09:06","end":"10:38","startHours":9.102344786153267,"endHours":10.627981331387161,"quality":"inauspicious"},{"name":"Śubha","start":"10:38","end":"12:09","startHours":10.627981331387161,"endHours":12.153617876621059,"quality":"auspicious"},{"name":"Roga","start":"12:09","end":"13:41","startHours":12.153617876621059,"endHours":13.679254421854953,"quality":"inauspicious"},{"name":"Udveg","start":"13:41","end":"15:12","startHours":13.679254421854953,"endHours":15.204890967088847,"quality":"inauspicious"},{"name":"Chala","start":"15:12","end":"16:44","startHours":15.204890967088847,"endHours":16.730527512322745,"quality":"neutral"},{"name":"Labha","start":"16:44","end":"18:15","startHours":16.730527512322745,"endHours":18.25616405755664,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:15","end":"19:44","startHours":18.25616405755664,"endHours":19.730527512322745,"quality":"inauspicious"},{"name":"Chala","start":"19:44","end":"21:12","startHours":19.730527512322745,"endHours":21.204890967088847,"quality":"neutral"},{"name":"Labha","start":"21:12","end":"22:41","startHours":21.204890967088847,"endHours":22.679254421854953,"quality":"auspicious"},{"name":"Amṛta","start":"22:41","end":"00:09","startHours":22.679254421854953,"endHours":24.153617876621055,"quality":"auspicious"},{"name":"Kāla","start":"00:09","end":"01:38","startHours":24.153617876621055,"endHours":25.62798133138716,"quality":"inauspicious"},{"name":"Śubha","start":"01:38","end":"03:06","startHours":25.62798133138716,"endHours":27.102344786153267,"quality":"auspicious"},{"name":"Roga","start":"03:06","end":"04:35","startHours":27.102344786153267,"endHours":28.576708240919373,"quality":"inauspicious"},{"name":"Udveg","start":"04:35","end":"06:03","startHours":28.576708240919373,"endHours":30.051071695685476,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:03","end":"07:03","startHours":6.051071695685477,"endHours":7.051071695685477,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:03","end":"08:03","startHours":7.051071695685477,"endHours":8.051071695685476,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:03","end":"09:03","startHours":8.051071695685476,"endHours":9.051071695685476,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:03","end":"10:03","startHours":9.051071695685476,"endHours":10.051071695685476,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:03","end":"11:03","startHours":10.051071695685476,"endHours":11.051071695685476,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:03","end":"12:03","startHours":11.051071695685476,"endHours":12.051071695685476,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:03","end":"13:03","startHours":12.051071695685476,"endHours":13.051071695685476,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:03","end":"14:03","startHours":13.051071695685476,"endHours":14.051071695685476,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:03","end":"15:03","startHours":14.051071695685476,"endHours":15.051071695685476,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:03","end":"16:03","startHours":15.051071695685476,"endHours":16.051071695685476,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:03","end":"17:03","startHours":16.051071695685476,"endHours":17.051071695685476,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:03","end":"18:03","startHours":17.051071695685476,"endHours":18.051071695685476,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:03","end":"19:03","startHours":18.051071695685476,"endHours":19.051071695685476,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:03","end":"20:03","startHours":19.051071695685476,"endHours":20.051071695685476,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:03","end":"21:03","startHours":20.051071695685476,"endHours":21.051071695685476,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:03","end":"22:03","startHours":21.051071695685476,"endHours":22.051071695685476,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:03","end":"23:03","startHours":22.051071695685476,"endHours":23.051071695685476,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:03","end":"00:03","startHours":23.051071695685476,"endHours":24.051071695685476,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:03","end":"01:03","startHours":24.051071695685476,"endHours":25.051071695685476,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:03","end":"02:03","startHours":25.051071695685476,"endHours":26.051071695685476,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:03","end":"03:03","startHours":26.051071695685476,"endHours":27.051071695685476,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:03","end":"04:03","startHours":27.051071695685476,"endHours":28.051071695685476,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:03","end":"05:03","startHours":28.051071695685476,"endHours":29.051071695685476,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:03","end":"06:03","startHours":29.051071695685476,"endHours":30.051071695685476,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"South-West","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":0.9926745926408218,"eotMinutes":7.712527402736593,"ayanamsa":23.6256}},"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","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Caturdaśī · Vikram 2040 Dhātṛ · Śaka 1905 Rudhirodgāri"},"festivals":[],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 September 21, 1983 CE · Ṛṣikeśa · Vidhyamitra","description":"September 21, 1983 CE for Ṛṣikeśa: Śukla Caturdaśī, sūryodaya 06:03, sūryāsta 18:15.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1983-09-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1983-09-21","sa":"https://sa.vidhyamitra.com/city/rishikesh/1983-09-21","hi":"https://hi.vidhyamitra.com/city/rishikesh/1983-09-21","x-default":"https://vidhyamitra.com/city/rishikesh/1983-09-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T10:00:54.770Z","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":"2026-06-01T10:00:54.770Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T10:00:54.770Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}