{"id":"vidhyamitra:city-day:ayodhya:1771-09-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1771-09-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1771-09-20","date_display":"September 20, 1771 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":1771,"month":9,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2368166.770833,"kali_year":4873,"ahargana":1779701.2708,"sun":{"sidereal_longitude":155.9707,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":290.8945,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":134.9238,"elapsed_within_tithi_degrees":2.9238},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4,"moon_longitude":290.8945,"elapsed_within_degrees":10.8945},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.8652},"karana":{"half_tithi_index":22,"name":"Bava"},"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":1771,"month":9,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2368166.770833,"ahargana":1779701.2708,"kali_year":4873,"ayanamsa_lahiri":20.6641,"grahas":{"sun":{"sidereal_longitude":156.159672,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":293.10187199999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false,"latitude":4.4973},"mars":{"sidereal_longitude":179.65117199999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":184.91907200000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":270.20157199999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":150.69257199999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":126.05727200000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":202.8621,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":22.8621,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":1771,"month":9,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2368166.770833,"kali_year":4873,"ahargana":1779701.2708,"sun":{"sidereal_longitude":155.9707,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":290.8945,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":134.9238,"elapsed_within_tithi_degrees":2.9238},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4,"moon_longitude":290.8945,"elapsed_within_degrees":10.8945},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.8652},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.497,"elongation":134.924},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.497,"opposition_distance":45.076}},"eclipse_window_40days":[]},"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"05:48","sunsetLocal":"18:00","solarNoonLocal":"11:54","dayLengthHours":12.20954131735359,"dayLengthDisplay":"12 Hours 12 Mins 34 Secs","nightLengthDisplay":"11 Hours 47 Mins 26 Secs","moonriseLocal":"15:34","moonsetLocal":"02:30","rahuKala":{"name":"Rāhu Kāla","start":"10:22","end":"11:54","startHours":10.371092089304897,"endHours":11.897284753974095,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:57","end":"16:29","startHours":14.949670083312494,"endHours":16.47586274798169,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:19","end":"08:51","startHours":7.318706759966499,"endHours":8.844899424635699,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:03","startHours":8.64140706934647,"endHours":9.048391779924925,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:18","end":"06:38","startHours":6.301244983520367,"endHours":6.626832751983129,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:29","end":"12:18","startHours":11.490300043395642,"endHours":12.304269464552547,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"04:59","startHours":4.1645752529834885,"endHours":4.9785446741403945,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:47","end":"05:48","startHours":4.775052318851168,"endHours":5.7925140952973,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:45","startHours":13.932208306866361,"endHours":14.746177728023268,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:48","end":"18:12","startHours":17.80205541265089,"endHours":18.20205541265089,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:00","end":"18:31","startHours":18.00205541265089,"endHours":18.510786300873956,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:45","end":"19:30","startHours":17.75205541265089,"endHours":19.50205541265089,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:29","end":"00:18","startHours":23.490300043395642,"endHours":24.304269464552547,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:48","end":"07:19","startHours":5.7925140952973,"endHours":7.318706759966499,"quality":"neutral"},{"name":"Labha","start":"07:19","end":"08:51","startHours":7.318706759966499,"endHours":8.844899424635699,"quality":"auspicious"},{"name":"Amṛta","start":"08:51","end":"10:22","startHours":8.844899424635699,"endHours":10.371092089304897,"quality":"auspicious"},{"name":"Kāla","start":"10:22","end":"11:54","startHours":10.371092089304897,"endHours":11.897284753974095,"quality":"inauspicious"},{"name":"Śubha","start":"11:54","end":"13:25","startHours":11.897284753974095,"endHours":13.423477418643294,"quality":"auspicious"},{"name":"Roga","start":"13:25","end":"14:57","startHours":13.423477418643294,"endHours":14.949670083312494,"quality":"inauspicious"},{"name":"Udveg","start":"14:57","end":"16:29","startHours":14.949670083312494,"endHours":16.47586274798169,"quality":"inauspicious"},{"name":"Chala","start":"16:29","end":"18:00","startHours":16.47586274798169,"endHours":18.00205541265089,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:00","end":"19:29","startHours":18.00205541265089,"endHours":19.47586274798169,"quality":"inauspicious"},{"name":"Udveg","start":"19:29","end":"20:57","startHours":19.47586274798169,"endHours":20.94967008331249,"quality":"inauspicious"},{"name":"Chala","start":"20:57","end":"22:25","startHours":20.94967008331249,"endHours":22.423477418643294,"quality":"neutral"},{"name":"Labha","start":"22:25","end":"23:54","startHours":22.423477418643294,"endHours":23.897284753974095,"quality":"auspicious"},{"name":"Amṛta","start":"23:54","end":"01:22","startHours":23.897284753974095,"endHours":25.371092089304895,"quality":"auspicious"},{"name":"Kāla","start":"01:22","end":"02:51","startHours":25.371092089304895,"endHours":26.8448994246357,"quality":"inauspicious"},{"name":"Śubha","start":"02:51","end":"04:19","startHours":26.8448994246357,"endHours":28.3187067599665,"quality":"auspicious"},{"name":"Roga","start":"04:19","end":"05:48","startHours":28.3187067599665,"endHours":29.7925140952973,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:48","end":"06:48","startHours":5.7925140952973,"endHours":6.7925140952973,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:48","end":"07:48","startHours":6.7925140952973,"endHours":7.7925140952973,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:48","end":"08:48","startHours":7.7925140952973,"endHours":8.7925140952973,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:48","end":"09:48","startHours":8.7925140952973,"endHours":9.7925140952973,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:48","end":"10:48","startHours":9.7925140952973,"endHours":10.7925140952973,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:48","end":"11:48","startHours":10.7925140952973,"endHours":11.7925140952973,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:48","end":"12:48","startHours":11.7925140952973,"endHours":12.7925140952973,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:48","end":"13:48","startHours":12.7925140952973,"endHours":13.7925140952973,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:48","end":"14:48","startHours":13.7925140952973,"endHours":14.7925140952973,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:48","end":"15:48","startHours":14.7925140952973,"endHours":15.7925140952973,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:48","end":"16:48","startHours":15.7925140952973,"endHours":16.7925140952973,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:48","end":"17:48","startHours":16.7925140952973,"endHours":17.7925140952973,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:48","end":"18:48","startHours":17.7925140952973,"endHours":18.7925140952973,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:48","end":"19:48","startHours":18.7925140952973,"endHours":19.7925140952973,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:48","end":"20:48","startHours":19.7925140952973,"endHours":20.7925140952973,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:48","end":"21:48","startHours":20.7925140952973,"endHours":21.7925140952973,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:48","end":"22:48","startHours":21.7925140952973,"endHours":22.7925140952973,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:48","end":"23:48","startHours":22.7925140952973,"endHours":23.7925140952973,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:48","end":"00:48","startHours":23.7925140952973,"endHours":24.7925140952973,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:48","end":"01:48","startHours":24.7925140952973,"endHours":25.7925140952973,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:48","end":"02:48","startHours":25.7925140952973,"endHours":26.7925140952973,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:48","end":"03:48","startHours":26.7925140952973,"endHours":27.7925140952973,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:48","end":"04:48","startHours":27.7925140952973,"endHours":28.7925140952973,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:48","end":"05:48","startHours":28.7925140952973,"endHours":29.7925140952973,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"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":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":1.262744262229848,"eotMinutes":7.346914761554353,"ayanamsa":20.6641}},"calendars":{"vikram_samvat":1828,"vikram_samvatsara":"Krodhi","saka_samvat":1693,"saka_samvatsara":"Khara","bengali_samvat":1178,"malayalam_era":947,"nanakshahi_year":302,"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 Dvādaśī · Vikram 1828 Krodhi · Śaka 1693 Khara"},"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":"onam","name":"Onam (Vāmana / King Bali)","name_sanskrit":"ओणम् (वामन-बलि स्मरण)","tradition":"Regional","associated_deity":"Vāmana + King Bali","significance":"Kerala festival; King Bali's annual return to Kerala. Aligned with Thiru-Onam (Śravaṇa nakshatra in Bhādrapada).","vrata":false,"detection":{"nakshatra_name":"Śravaṇa","lunar_month":"Bhādrapada"},"precedence":2}],"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":"ayodhya"},"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, 1771 CE · Ayodhyā · Vidhyamitra","description":"September 20, 1771 CE for Ayodhyā: Śukla Dvādaśī, sūryodaya 05:48, sūryāsta 18:00.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1771-09-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1771-09-20","sa":"https://sa.vidhyamitra.com/city/ayodhya/1771-09-20","hi":"https://hi.vidhyamitra.com/city/ayodhya/1771-09-20","x-default":"https://vidhyamitra.com/city/ayodhya/1771-09-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T20:51:41.903Z","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":"2026-05-31T20:51:41.903Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T20:51:41.903Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}