{"id":"vidhyamitra:city-day:ayodhya:1866-05-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1866-05-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1866-05-20","date_display":"May 20, 1866 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":1866,"month":5,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2402741.770833,"kali_year":4968,"ahargana":1814276.2708,"sun":{"sidereal_longitude":37.0311,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":107.6555,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":70.6244,"elapsed_within_tithi_degrees":10.6244},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1,"moon_longitude":107.6555,"elapsed_within_degrees":0.9888},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":144.6866},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1866,"month":5,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2402741.770833,"ahargana":1814276.2708,"kali_year":4968,"ayanamsa_lahiri":21.9865,"grahas":{"sun":{"sidereal_longitude":36.77655299999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":110.16335299999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false,"latitude":-4.0178},"mars":{"sidereal_longitude":352.093353,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":14.087153,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":282.60885299999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"venus":{"sidereal_longitude":59.73515299999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":196.59615299999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":170.9123,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":350.9123,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"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":1866,"month":5,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2402741.770833,"kali_year":4968,"ahargana":1814276.2708,"sun":{"sidereal_longitude":37.0311,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":107.6555,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":70.6244,"elapsed_within_tithi_degrees":10.6244},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1,"moon_longitude":107.6555,"elapsed_within_degrees":0.9888},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":144.6866},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.018,"elongation":70.624},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.018,"opposition_distance":109.376}},"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":"05:11","sunsetLocal":"18:44","solarNoonLocal":"11:58","dayLengthHours":13.538124790648377,"dayLengthDisplay":"13 Hours 32 Mins 17 Secs","nightLengthDisplay":"10 Hours 27 Mins 43 Secs","moonriseLocal":"10:12","moonsetLocal":"23:30","rahuKala":{"name":"Rāhu Kāla","start":"17:02","end":"18:44","startHours":17.036558246223386,"endHours":18.728823845054436,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:58","end":"13:39","startHours":11.959761449730248,"endHours":13.652027048561294,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:21","end":"17:02","startHours":15.344292647392342,"endHours":17.036558246223386,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:21","end":"08:48","startHours":8.349594838890681,"endHours":8.800865665245626,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:45","end":"06:07","startHours":5.754787587349741,"endHours":6.115804248433697,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:31","end":"12:25","startHours":11.508490623375302,"endHours":12.411032276085194,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:23","end":"04:17","startHours":3.3856157489862753,"endHours":4.288157401696167,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:04","end":"05:11","startHours":4.062521988518694,"endHours":5.190699054406059,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:13","end":"15:07","startHours":14.216115581504978,"endHours":15.11865723421487,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:32","end":"18:56","startHours":18.528823845054436,"endHours":18.928823845054435,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:44","end":"19:18","startHours":18.728823845054436,"endHours":19.292912377998118,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:29","end":"20:14","startHours":18.478823845054436,"endHours":20.228823845054436,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:31","end":"00:25","startHours":23.5084906233753,"endHours":24.411032276085194,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:11","end":"06:53","startHours":5.190699054406059,"endHours":6.882964653237106,"quality":"inauspicious"},{"name":"Chala","start":"06:53","end":"08:35","startHours":6.882964653237106,"endHours":8.575230252068152,"quality":"neutral"},{"name":"Labha","start":"08:35","end":"10:16","startHours":8.575230252068152,"endHours":10.2674958508992,"quality":"auspicious"},{"name":"Amṛta","start":"10:16","end":"11:58","startHours":10.2674958508992,"endHours":11.959761449730248,"quality":"auspicious"},{"name":"Kāla","start":"11:58","end":"13:39","startHours":11.959761449730248,"endHours":13.652027048561294,"quality":"inauspicious"},{"name":"Śubha","start":"13:39","end":"15:21","startHours":13.652027048561294,"endHours":15.344292647392342,"quality":"auspicious"},{"name":"Roga","start":"15:21","end":"17:02","startHours":15.344292647392342,"endHours":17.036558246223386,"quality":"inauspicious"},{"name":"Udveg","start":"17:02","end":"18:44","startHours":17.036558246223386,"endHours":18.728823845054436,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:44","end":"20:02","startHours":18.728823845054436,"endHours":20.03655824622339,"quality":"auspicious"},{"name":"Roga","start":"20:02","end":"21:21","startHours":20.03655824622339,"endHours":21.34429264739234,"quality":"inauspicious"},{"name":"Udveg","start":"21:21","end":"22:39","startHours":21.34429264739234,"endHours":22.652027048561294,"quality":"inauspicious"},{"name":"Chala","start":"22:39","end":"23:58","startHours":22.652027048561294,"endHours":23.959761449730248,"quality":"neutral"},{"name":"Labha","start":"23:58","end":"01:16","startHours":23.959761449730248,"endHours":25.267495850899202,"quality":"auspicious"},{"name":"Amṛta","start":"01:16","end":"02:35","startHours":25.267495850899202,"endHours":26.575230252068152,"quality":"auspicious"},{"name":"Kāla","start":"02:35","end":"03:53","startHours":26.575230252068152,"endHours":27.882964653237106,"quality":"inauspicious"},{"name":"Śubha","start":"03:53","end":"05:11","startHours":27.882964653237106,"endHours":29.19069905440606,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:11","end":"06:11","startHours":5.190699054406059,"endHours":6.190699054406059,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:11","end":"07:11","startHours":6.190699054406059,"endHours":7.190699054406059,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:11","end":"08:11","startHours":7.190699054406059,"endHours":8.190699054406059,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:11","end":"09:11","startHours":8.190699054406059,"endHours":9.190699054406059,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:11","end":"10:11","startHours":9.190699054406059,"endHours":10.190699054406059,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:11","end":"11:11","startHours":10.190699054406059,"endHours":11.190699054406059,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:11","end":"12:11","startHours":11.190699054406059,"endHours":12.190699054406059,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:11","end":"13:11","startHours":12.190699054406059,"endHours":13.190699054406059,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:11","end":"14:11","startHours":13.190699054406059,"endHours":14.190699054406059,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:11","end":"15:11","startHours":14.190699054406059,"endHours":15.190699054406059,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:11","end":"16:11","startHours":15.190699054406059,"endHours":16.19069905440606,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:11","end":"17:11","startHours":16.19069905440606,"endHours":17.19069905440606,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:11","end":"18:11","startHours":17.19069905440606,"endHours":18.19069905440606,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:11","end":"19:11","startHours":18.19069905440606,"endHours":19.19069905440606,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:11","end":"20:11","startHours":19.19069905440606,"endHours":20.19069905440606,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:11","end":"21:11","startHours":20.19069905440606,"endHours":21.19069905440606,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:11","end":"22:11","startHours":21.19069905440606,"endHours":22.19069905440606,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:11","end":"23:11","startHours":22.19069905440606,"endHours":23.19069905440606,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:11","end":"00:11","startHours":23.19069905440606,"endHours":24.19069905440606,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:11","end":"01:11","startHours":24.19069905440606,"endHours":25.19069905440606,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:11","end":"02:11","startHours":25.19069905440606,"endHours":26.19069905440606,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:11","end":"03:11","startHours":26.19069905440606,"endHours":27.19069905440606,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:11","end":"04:11","startHours":27.19069905440606,"endHours":28.19069905440606,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:11","end":"05:11","startHours":28.19069905440606,"endHours":29.19069905440606,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":19.881333865165022,"eotMinutes":3.5983130161851964,"ayanamsa":21.9865}},"calendars":{"vikram_samvat":1923,"vikram_samvatsara":"Pramāthi","saka_samvat":1788,"saka_samvatsara":"Akṣaya","bengali_samvat":1273,"malayalam_era":1042,"nanakshahi_year":397,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha (Adhika) Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Jyeṣṭha","lunar_month_is_adhika":true,"lunar_month_purnimanta_is_adhika":true,"lunar_month_amanta_is_adhika":true,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha (Adhika) Śukla Ṣaṣṭhī · Vikram 1923 Pramāthi · Śaka 1788 Akṣaya"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 May 20, 1866 CE · Ayodhyā · Vidhyamitra","description":"May 20, 1866 CE for Ayodhyā: Śukla Ṣaṣṭhī, sūryodaya 05:11, sūryāsta 18:44.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1866-05-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1866-05-20","sa":"https://sa.vidhyamitra.com/city/ayodhya/1866-05-20","hi":"https://hi.vidhyamitra.com/city/ayodhya/1866-05-20","x-default":"https://vidhyamitra.com/city/ayodhya/1866-05-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T22:09:39.127Z","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":"2026-05-31T22:09:39.127Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T22:09:39.127Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}