{"id":"vidhyamitra:city-day:vrindavan:1983-09-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/1983-09-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1983-09-20","date_display":"September 20, 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":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445597.770833,"kali_year":5085,"ahargana":1857132.2708,"sun":{"sidereal_longitude":152.2046,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":306.512,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":154.3073,"elapsed_within_tithi_degrees":10.3073},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":306.512,"elapsed_within_degrees":13.1786},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":98.7166},"karana":{"half_tithi_index":25,"name":"Taitila"},"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":1983,"month":9,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2445597.770833,"ahargana":1857132.2708,"kali_year":5085,"ayanamsa_lahiri":23.6255,"grahas":{"sun":{"sidereal_longitude":152.90073800000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":308.066738,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false,"latitude":-4.1203},"mars":{"sidereal_longitude":120.415638,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":144.97853800000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":222.24993800000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":120.07353799999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":188.49973799999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":60.1951,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":240.1951,"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":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445597.770833,"kali_year":5085,"ahargana":1857132.2708,"sun":{"sidereal_longitude":152.2046,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":306.512,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":154.3073,"elapsed_within_tithi_degrees":10.3073},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":306.512,"elapsed_within_degrees":13.1786},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":98.7166},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.12,"elongation":154.307},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.12,"opposition_distance":25.693}},"eclipse_window_40days":[]},"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:05","sunsetLocal":"18:19","solarNoonLocal":"12:12","dayLengthHours":12.221483760124533,"dayLengthDisplay":"12 Hours 13 Mins 17 Secs","nightLengthDisplay":"11 Hours 46 Mins 43 Secs","moonriseLocal":"16:53","moonsetLocal":"04:12","rahuKala":{"name":"Rāhu Kāla","start":"15:15","end":"16:47","startHours":15.255635694005226,"endHours":16.783321164020794,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:09","end":"10:40","startHours":9.14489381394296,"endHours":10.672579283958527,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:12","end":"13:44","startHours":12.200264753974093,"endHours":13.72795022398966,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:56","end":"09:21","startHours":8.941202417940884,"endHours":9.348585209945036,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:36","end":"06:55","startHours":6.598751363917016,"endHours":6.924657597520337,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:48","end":"12:36","startHours":11.792881961969943,"endHours":12.607647545978246,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:28","end":"05:16","startHours":4.459991705895223,"endHours":5.274757289903524,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:04","end":"06:05","startHours":5.07106589390145,"endHours":6.089522873911827,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:14","end":"15:03","startHours":14.23717871399485,"endHours":15.051944298003152,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:07","end":"18:31","startHours":18.11100663403636,"endHours":18.51100663403636,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:19","end":"18:49","startHours":18.31100663403636,"endHours":18.82023512404155,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:04","end":"19:49","startHours":18.06100663403636,"endHours":19.81100663403636,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:48","end":"00:36","startHours":23.792881961969947,"endHours":24.607647545978246,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:05","end":"07:37","startHours":6.089522873911827,"endHours":7.617208343927394,"quality":"inauspicious"},{"name":"Udveg","start":"07:37","end":"09:09","startHours":7.617208343927394,"endHours":9.14489381394296,"quality":"inauspicious"},{"name":"Chala","start":"09:09","end":"10:40","startHours":9.14489381394296,"endHours":10.672579283958527,"quality":"neutral"},{"name":"Labha","start":"10:40","end":"12:12","startHours":10.672579283958527,"endHours":12.200264753974093,"quality":"auspicious"},{"name":"Amṛta","start":"12:12","end":"13:44","startHours":12.200264753974093,"endHours":13.72795022398966,"quality":"auspicious"},{"name":"Kāla","start":"13:44","end":"15:15","startHours":13.72795022398966,"endHours":15.255635694005226,"quality":"inauspicious"},{"name":"Śubha","start":"15:15","end":"16:47","startHours":15.255635694005226,"endHours":16.783321164020794,"quality":"auspicious"},{"name":"Roga","start":"16:47","end":"18:19","startHours":16.783321164020794,"endHours":18.31100663403636,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:19","end":"19:47","startHours":18.31100663403636,"endHours":19.783321164020794,"quality":"inauspicious"},{"name":"Śubha","start":"19:47","end":"21:15","startHours":19.783321164020794,"endHours":21.25563569400523,"quality":"auspicious"},{"name":"Roga","start":"21:15","end":"22:44","startHours":21.25563569400523,"endHours":22.72795022398966,"quality":"inauspicious"},{"name":"Udveg","start":"22:44","end":"00:12","startHours":22.72795022398966,"endHours":24.200264753974093,"quality":"inauspicious"},{"name":"Chala","start":"00:12","end":"01:40","startHours":24.200264753974093,"endHours":25.672579283958527,"quality":"neutral"},{"name":"Labha","start":"01:40","end":"03:09","startHours":25.672579283958527,"endHours":27.14489381394296,"quality":"auspicious"},{"name":"Amṛta","start":"03:09","end":"04:37","startHours":27.14489381394296,"endHours":28.617208343927395,"quality":"auspicious"},{"name":"Kāla","start":"04:37","end":"06:05","startHours":28.617208343927395,"endHours":30.089522873911825,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:05","end":"07:05","startHours":6.089522873911827,"endHours":7.089522873911827,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:05","end":"08:05","startHours":7.089522873911827,"endHours":8.089522873911827,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:05","end":"09:05","startHours":8.089522873911827,"endHours":9.089522873911827,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:05","end":"10:05","startHours":9.089522873911827,"endHours":10.089522873911827,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:05","end":"11:05","startHours":10.089522873911827,"endHours":11.089522873911827,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:05","end":"12:05","startHours":11.089522873911827,"endHours":12.089522873911827,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:05","end":"13:05","startHours":12.089522873911827,"endHours":13.089522873911827,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:05","end":"14:05","startHours":13.089522873911827,"endHours":14.089522873911827,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:05","end":"15:05","startHours":14.089522873911827,"endHours":15.089522873911827,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:05","end":"16:05","startHours":15.089522873911827,"endHours":16.089522873911825,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:05","end":"17:05","startHours":16.089522873911825,"endHours":17.089522873911825,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:05","end":"18:05","startHours":17.089522873911825,"endHours":18.089522873911825,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:05","end":"19:05","startHours":18.089522873911825,"endHours":19.089522873911825,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:05","end":"20:05","startHours":19.089522873911825,"endHours":20.089522873911825,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:05","end":"21:05","startHours":20.089522873911825,"endHours":21.089522873911825,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:05","end":"22:05","startHours":21.089522873911825,"endHours":22.089522873911825,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:05","end":"23:05","startHours":22.089522873911825,"endHours":23.089522873911825,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:05","end":"00:05","startHours":23.089522873911825,"endHours":24.089522873911825,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:05","end":"01:05","startHours":24.089522873911825,"endHours":25.089522873911825,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:05","end":"02:05","startHours":25.089522873911825,"endHours":26.089522873911825,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:05","end":"03:05","startHours":26.089522873911825,"endHours":27.089522873911825,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:05","end":"04:05","startHours":27.089522873911825,"endHours":28.089522873911825,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:05","end":"05:05","startHours":28.089522873911825,"endHours":29.089522873911825,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:05","end":"06:05","startHours":29.089522873911825,"endHours":30.089522873911825,"planetary_lord":"Saturn"}],"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","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":1.3809153160698273,"eotMinutes":7.346914761554353,"ayanamsa":23.6255}},"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 Trayodaśī · Vikram 2040 Dhātṛ · Śaka 1905 Rudhirodgāri"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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":"vrindavan"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga September 20, 1983 CE · Vṛndāvana · Vidhyamitra","description":"September 20, 1983 CE for Vṛndāvana: Śukla Trayodaśī, sūryodaya 06:05, sūryāsta 18:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/1983-09-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/1983-09-20","sa":"https://sa.vidhyamitra.com/city/vrindavan/1983-09-20","hi":"https://hi.vidhyamitra.com/city/vrindavan/1983-09-20","x-default":"https://vidhyamitra.com/city/vrindavan/1983-09-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T05:50:17.657Z","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":"2026-06-03T05:50:17.657Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T05:50:17.657Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}