{"id":"vidhyamitra:city-day:ayodhya:1813-10-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1813-10-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1813-10-21","date_display":"October 21, 1813 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":1813,"month":10,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2383537.770833,"kali_year":4915,"ahargana":1795072.2708,"sun":{"sidereal_longitude":185.7511,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":148.6931,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":322.942,"elapsed_within_tithi_degrees":10.942},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":148.6931,"elapsed_within_degrees":2.0264},"yoga":{"number":26,"name":"Indra","sum_longitude":334.4442},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1813,"month":10,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2383537.770833,"ahargana":1795072.2708,"kali_year":4915,"ayanamsa_lahiri":21.252,"grahas":{"sun":{"sidereal_longitude":186.01678700000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":149.589287,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false,"latitude":2.9064},"mars":{"sidereal_longitude":298.325787,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":195.907687,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":134.536787,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":226.64388699999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":264.27218700000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":108.4326,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":288.4326,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1813,"month":10,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2383537.770833,"kali_year":4915,"ahargana":1795072.2708,"sun":{"sidereal_longitude":185.7511,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":148.6931,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":322.942,"elapsed_within_tithi_degrees":10.942},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":148.6931,"elapsed_within_degrees":2.0264},"yoga":{"number":26,"name":"Indra","sum_longitude":334.4442},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.906,"elongation":37.058},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.906,"opposition_distance":142.942}},"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":"06:03","sunsetLocal":"17:28","solarNoonLocal":"11:45","dayLengthHours":11.410811019335735,"dayLengthDisplay":"11 Hours 24 Mins 39 Secs","nightLengthDisplay":"12 Hours 35 Mins 21 Secs","moonriseLocal":"03:10","moonsetLocal":"15:30","rahuKala":{"name":"Rāhu Kāla","start":"13:11","end":"14:37","startHours":13.182261034638556,"endHours":14.608612412055521,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:03","end":"07:29","startHours":6.0505041475537205,"endHours":7.476855524970688,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:54","end":"10:20","startHours":8.903206902387655,"endHours":10.32955827980462,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:43","end":"09:06","startHours":8.713026718732058,"endHours":9.09338708604325,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:32","end":"06:50","startHours":6.525954606692709,"endHours":6.830242900541662,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:23","end":"12:08","startHours":11.375549289910397,"endHours":12.136270024532779,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:32","end":"05:17","startHours":4.529062678308955,"endHours":5.289783412931338,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:06","end":"06:03","startHours":5.0996032292757425,"endHours":6.0505041475537205,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:39","end":"14:25","startHours":13.657711493777544,"endHours":14.418432228399926,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:16","end":"17:40","startHours":17.261315166889457,"endHours":17.661315166889455,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:28","end":"17:56","startHours":17.461315166889456,"endHours":17.936765626028446,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:13","end":"18:58","startHours":17.211315166889456,"endHours":18.961315166889456,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:23","end":"00:08","startHours":23.375549289910396,"endHours":24.136270024532777,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:03","end":"07:29","startHours":6.0505041475537205,"endHours":7.476855524970688,"quality":"auspicious"},{"name":"Roga","start":"07:29","end":"08:54","startHours":7.476855524970688,"endHours":8.903206902387655,"quality":"inauspicious"},{"name":"Udveg","start":"08:54","end":"10:20","startHours":8.903206902387655,"endHours":10.32955827980462,"quality":"inauspicious"},{"name":"Chala","start":"10:20","end":"11:45","startHours":10.32955827980462,"endHours":11.755909657221588,"quality":"neutral"},{"name":"Labha","start":"11:45","end":"13:11","startHours":11.755909657221588,"endHours":13.182261034638556,"quality":"auspicious"},{"name":"Amṛta","start":"13:11","end":"14:37","startHours":13.182261034638556,"endHours":14.608612412055521,"quality":"auspicious"},{"name":"Kāla","start":"14:37","end":"16:02","startHours":14.608612412055521,"endHours":16.03496378947249,"quality":"inauspicious"},{"name":"Śubha","start":"16:02","end":"17:28","startHours":16.03496378947249,"endHours":17.461315166889456,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:28","end":"19:02","startHours":17.461315166889456,"endHours":19.03496378947249,"quality":"auspicious"},{"name":"Kāla","start":"19:02","end":"20:37","startHours":19.03496378947249,"endHours":20.60861241205552,"quality":"inauspicious"},{"name":"Śubha","start":"20:37","end":"22:11","startHours":20.60861241205552,"endHours":22.182261034638557,"quality":"auspicious"},{"name":"Roga","start":"22:11","end":"23:45","startHours":22.182261034638557,"endHours":23.755909657221586,"quality":"inauspicious"},{"name":"Udveg","start":"23:45","end":"01:20","startHours":23.755909657221586,"endHours":25.329558279804623,"quality":"inauspicious"},{"name":"Chala","start":"01:20","end":"02:54","startHours":25.329558279804623,"endHours":26.903206902387655,"quality":"neutral"},{"name":"Labha","start":"02:54","end":"04:29","startHours":26.903206902387655,"endHours":28.476855524970688,"quality":"auspicious"},{"name":"Amṛta","start":"04:29","end":"06:03","startHours":28.476855524970688,"endHours":30.05050414755372,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:03","end":"07:03","startHours":6.0505041475537205,"endHours":7.0505041475537205,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:03","end":"08:03","startHours":7.0505041475537205,"endHours":8.05050414755372,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:03","end":"09:03","startHours":8.05050414755372,"endHours":9.05050414755372,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:03","end":"10:03","startHours":9.05050414755372,"endHours":10.05050414755372,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:03","end":"11:03","startHours":10.05050414755372,"endHours":11.05050414755372,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:03","end":"12:03","startHours":11.05050414755372,"endHours":12.05050414755372,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:03","end":"13:03","startHours":12.05050414755372,"endHours":13.05050414755372,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:03","end":"14:03","startHours":13.05050414755372,"endHours":14.05050414755372,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:03","end":"15:03","startHours":14.05050414755372,"endHours":15.05050414755372,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:03","end":"16:03","startHours":15.05050414755372,"endHours":16.05050414755372,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:03","end":"17:03","startHours":16.05050414755372,"endHours":17.05050414755372,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:03","end":"18:03","startHours":17.05050414755372,"endHours":18.05050414755372,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:03","end":"19:03","startHours":18.05050414755372,"endHours":19.05050414755372,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:03","end":"20:03","startHours":19.05050414755372,"endHours":20.05050414755372,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:03","end":"21:03","startHours":20.05050414755372,"endHours":21.05050414755372,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:03","end":"22:03","startHours":21.05050414755372,"endHours":22.05050414755372,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:03","end":"23:03","startHours":22.05050414755372,"endHours":23.05050414755372,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:03","end":"00:03","startHours":23.05050414755372,"endHours":24.05050414755372,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:03","end":"01:03","startHours":24.05050414755372,"endHours":25.05050414755372,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:03","end":"02:03","startHours":25.05050414755372,"endHours":26.05050414755372,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:03","end":"03:03","startHours":26.05050414755372,"endHours":27.05050414755372,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:03","end":"04:03","startHours":27.05050414755372,"endHours":28.05050414755372,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:03","end":"05:03","startHours":28.05050414755372,"endHours":29.05050414755372,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:03","end":"06:03","startHours":29.05050414755372,"endHours":30.05050414755372,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-10.499517779747897,"eotMinutes":15.829420566704727,"ayanamsa":21.252}},"calendars":{"vikram_samvat":1870,"vikram_samvatsara":"Vyaya","saka_samvat":1735,"saka_samvatsara":"Śrīmukha","bengali_samvat":1220,"malayalam_era":989,"nanakshahi_year":344,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Dvādaśī · Vikram 1870 Vyaya · Śaka 1735 Śrīmukha"},"festivals":[{"id":"govatsa-dwadashi","name":"Govatsa Dvādaśī (Vaccha Bāras)","name_sanskrit":"गोवत्स द्वादशी","tradition":"Vaishnava","associated_deity":"Krishna + Gomātā","significance":"Worship of cow + calf; pre-Diwali day.","vrata":true,"detection":{"tithi_number":27,"tithi_paksha":"Kṛṣṇa","lunar_month":"Kārtika"},"precedence":4}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 21, 1813 CE · Ayodhyā · Vidhyamitra","description":"October 21, 1813 CE for Ayodhyā: Kṛṣṇa Dvādaśī, sūryodaya 06:03, sūryāsta 17:28.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1813-10-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1813-10-21","sa":"https://sa.vidhyamitra.com/city/ayodhya/1813-10-21","hi":"https://hi.vidhyamitra.com/city/ayodhya/1813-10-21","x-default":"https://vidhyamitra.com/city/ayodhya/1813-10-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T10:01:44.443Z","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":"2026-06-02T10:01:44.443Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T10:01:44.443Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}