{"id":"vidhyamitra:city-day:ayodhya:1817-10-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1817-10-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1817-10-20","date_display":"October 20, 1817 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":1817,"month":10,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2384997.770833,"kali_year":4919,"ahargana":1796532.2708,"sun":{"sidereal_longitude":184.7176,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":305.5991,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":120.8815,"elapsed_within_tithi_degrees":0.8815},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":305.5991,"elapsed_within_degrees":12.2658},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":130.3167},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1817,"month":10,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2384997.770833,"ahargana":1796532.2708,"kali_year":4919,"ayanamsa_lahiri":21.3078,"grahas":{"sun":{"sidereal_longitude":184.99620400000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":308.067104,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false,"latitude":-4.4859},"mars":{"sidereal_longitude":66.52800400000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":171.378104,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":231.01740399999994,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":153.59090400000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":309.9815040000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":31.0748,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":211.0748,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"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":1817,"month":10,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2384997.770833,"kali_year":4919,"ahargana":1796532.2708,"sun":{"sidereal_longitude":184.7176,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":305.5991,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":120.8815,"elapsed_within_tithi_degrees":0.8815},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":305.5991,"elapsed_within_degrees":12.2658},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":130.3167},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.486,"elongation":120.881},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.486,"opposition_distance":59.119}},"eclipse_window_40days":[{"offset_days":20,"type":"solar","occurs":true,"moon_latitude":0.467,"elongation":0.765}]},"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":"06:02","sunsetLocal":"17:29","solarNoonLocal":"11:45","dayLengthHours":11.434968055924088,"dayLengthDisplay":"11 Hours 26 Mins 06 Secs","nightLengthDisplay":"12 Hours 33 Mins 54 Secs","moonriseLocal":"14:19","moonsetLocal":"01:36","rahuKala":{"name":"Rāhu Kāla","start":"07:28","end":"08:54","startHours":7.470005791624615,"endHours":8.899376798615126,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:20","end":"11:45","startHours":10.328747805605637,"endHours":11.758118812596148,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:11","end":"14:37","startHours":13.18748981958666,"endHours":14.61686082657717,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:43","end":"09:05","startHours":8.708793997683058,"endHours":9.089959599547194,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:31","end":"06:49","startHours":6.517091786964275,"endHours":6.822024268455584,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:23","end":"12:08","startHours":11.376953210732012,"endHours":12.139284414460285,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:31","end":"05:17","startHours":4.515972377177559,"endHours":5.278303580905831,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:05","end":"06:02","startHours":5.087720779973764,"endHours":6.040634784634104,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:40","end":"14:26","startHours":13.66394682191683,"endHours":14.426278025645104,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:17","end":"17:41","startHours":17.275602840558193,"endHours":17.67560284055819,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:29","end":"17:57","startHours":17.475602840558192,"endHours":17.952059842888364,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:14","end":"18:59","startHours":17.225602840558192,"endHours":18.975602840558192,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:23","end":"00:08","startHours":23.37695321073201,"endHours":24.139284414460285,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:02","end":"07:28","startHours":6.040634784634104,"endHours":7.470005791624615,"quality":"auspicious"},{"name":"Kāla","start":"07:28","end":"08:54","startHours":7.470005791624615,"endHours":8.899376798615126,"quality":"inauspicious"},{"name":"Śubha","start":"08:54","end":"10:20","startHours":8.899376798615126,"endHours":10.328747805605637,"quality":"auspicious"},{"name":"Roga","start":"10:20","end":"11:45","startHours":10.328747805605637,"endHours":11.758118812596148,"quality":"inauspicious"},{"name":"Udveg","start":"11:45","end":"13:11","startHours":11.758118812596148,"endHours":13.18748981958666,"quality":"inauspicious"},{"name":"Chala","start":"13:11","end":"14:37","startHours":13.18748981958666,"endHours":14.61686082657717,"quality":"neutral"},{"name":"Labha","start":"14:37","end":"16:03","startHours":14.61686082657717,"endHours":16.04623183356768,"quality":"auspicious"},{"name":"Amṛta","start":"16:03","end":"17:29","startHours":16.04623183356768,"endHours":17.475602840558192,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:29","end":"19:03","startHours":17.475602840558192,"endHours":19.04623183356768,"quality":"neutral"},{"name":"Labha","start":"19:03","end":"20:37","startHours":19.04623183356768,"endHours":20.61686082657717,"quality":"auspicious"},{"name":"Amṛta","start":"20:37","end":"22:11","startHours":20.61686082657717,"endHours":22.18748981958666,"quality":"auspicious"},{"name":"Kāla","start":"22:11","end":"23:45","startHours":22.18748981958666,"endHours":23.758118812596148,"quality":"inauspicious"},{"name":"Śubha","start":"23:45","end":"01:20","startHours":23.758118812596148,"endHours":25.328747805605637,"quality":"auspicious"},{"name":"Roga","start":"01:20","end":"02:54","startHours":25.328747805605637,"endHours":26.899376798615126,"quality":"inauspicious"},{"name":"Udveg","start":"02:54","end":"04:28","startHours":26.899376798615126,"endHours":28.470005791624615,"quality":"inauspicious"},{"name":"Chala","start":"04:28","end":"06:02","startHours":28.470005791624615,"endHours":30.040634784634104,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:02","end":"07:02","startHours":6.040634784634104,"endHours":7.040634784634104,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:02","end":"08:02","startHours":7.040634784634104,"endHours":8.040634784634104,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:02","end":"09:02","startHours":8.040634784634104,"endHours":9.040634784634104,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:02","end":"10:02","startHours":9.040634784634104,"endHours":10.040634784634104,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:02","end":"11:02","startHours":10.040634784634104,"endHours":11.040634784634104,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:02","end":"12:02","startHours":11.040634784634104,"endHours":12.040634784634104,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:02","end":"13:02","startHours":12.040634784634104,"endHours":13.040634784634104,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:02","end":"14:02","startHours":13.040634784634104,"endHours":14.040634784634104,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:02","end":"15:02","startHours":14.040634784634104,"endHours":15.040634784634104,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:02","end":"16:02","startHours":15.040634784634104,"endHours":16.040634784634104,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:02","end":"17:02","startHours":16.040634784634104,"endHours":17.040634784634104,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:02","end":"18:02","startHours":17.040634784634104,"endHours":18.040634784634104,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:02","end":"19:02","startHours":18.040634784634104,"endHours":19.040634784634104,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:02","end":"20:02","startHours":19.040634784634104,"endHours":20.040634784634104,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:02","end":"21:02","startHours":20.040634784634104,"endHours":21.040634784634104,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:02","end":"22:02","startHours":21.040634784634104,"endHours":22.040634784634104,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:02","end":"23:02","startHours":22.040634784634104,"endHours":23.040634784634104,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:02","end":"00:02","startHours":23.040634784634104,"endHours":24.040634784634104,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:02","end":"01:02","startHours":24.040634784634104,"endHours":25.040634784634104,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:02","end":"02:02","startHours":25.040634784634104,"endHours":26.040634784634104,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:02","end":"03:02","startHours":26.040634784634104,"endHours":27.040634784634104,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:02","end":"04:02","startHours":27.040634784634104,"endHours":28.040634784634104,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:02","end":"05:02","startHours":28.040634784634104,"endHours":29.040634784634104,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:02","end":"06:02","startHours":29.040634784634104,"endHours":30.040634784634104,"planetary_lord":"Venus"}],"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":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"drikRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-10.151333638812247,"eotMinutes":15.696871244231174,"ayanamsa":21.3078}},"calendars":{"vikram_samvat":1874,"vikram_samvatsara":"Vikṛti","saka_samvat":1739,"saka_samvatsara":"Īśvara","bengali_samvat":1224,"malayalam_era":993,"nanakshahi_year":348,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Śukla Pakṣa","solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Śukla Ekādaśī · Vikram 1874 Vikṛti · Śaka 1739 Īśvara"},"festivals":[{"id":"devotthana-ekadashi","name":"Devotthāna Ekādaśī (Prabodhinī)","name_sanskrit":"देवोत्थान एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Bhagavān Viṣṇu awakens; Cāturmāsya ends; weddings can resume.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Kārtika"},"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":"tula-sankranti","name":"Tulā Saṅkrānti","name_sanskrit":"तुला सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Libra.","vrata":false,"detection":{"sun_rashi":"Tulā"},"precedence":5}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 October 20, 1817 CE · Ayodhyā · Vidhyamitra","description":"October 20, 1817 CE for Ayodhyā: Śukla Ekādaśī, sūryodaya 06:02, sūryāsta 17:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1817-10-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1817-10-20","sa":"https://sa.vidhyamitra.com/city/ayodhya/1817-10-20","hi":"https://hi.vidhyamitra.com/city/ayodhya/1817-10-20","x-default":"https://vidhyamitra.com/city/ayodhya/1817-10-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T19:08:56.127Z","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":"2026-05-21T19:08:56.127Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T19:08:56.127Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}