{"id":"vidhyamitra:city-day:ayodhya:1810-02-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1810-02-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1810-02-20","date_display":"February 20, 1810 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":1810,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2382198.770833,"kali_year":4911,"ahargana":1793733.2708,"sun":{"sidereal_longitude":310.1704,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":136.617,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":186.4466,"elapsed_within_tithi_degrees":6.4466},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":136.617,"elapsed_within_degrees":3.2837},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.7873},"karana":{"half_tithi_index":31,"name":"Kaulava"},"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":1810,"month":2,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2382198.770833,"ahargana":1793733.2708,"kali_year":4911,"ayanamsa_lahiri":21.2008,"grahas":{"sun":{"sidereal_longitude":309.59934599999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":136.166046,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false,"latitude":-3.0536},"mars":{"sidereal_longitude":341.874646,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":304.751746,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":4.129445999999973,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":306.46444599999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":235.02514599999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":179.3793,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":359.3793,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":1810,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2382198.770833,"kali_year":4911,"ahargana":1793733.2708,"sun":{"sidereal_longitude":310.1704,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":136.617,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":186.4466,"elapsed_within_tithi_degrees":6.4466},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":136.617,"elapsed_within_degrees":3.2837},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.7873},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.054,"elongation":173.553},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.054,"opposition_distance":6.447}},"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":"06:35","sunsetLocal":"17:56","solarNoonLocal":"12:15","dayLengthHours":11.362845981198337,"dayLengthDisplay":"11 Hours 21 Mins 46 Secs","nightLengthDisplay":"12 Hours 38 Mins 14 Secs","moonriseLocal":"18:21","moonsetLocal":"07:02","rahuKala":{"name":"Rāhu Kāla","start":"15:06","end":"16:31","startHours":15.098500579378289,"endHours":16.518856327028082,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:25","end":"10:50","startHours":9.41707758877912,"endHours":10.837433336428912,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:15","end":"13:41","startHours":12.257789084078706,"endHours":13.678144831728495,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:14","end":"09:36","startHours":9.227696822425814,"endHours":9.606458355132427,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:03","end":"07:21","startHours":7.0498180093628005,"endHours":7.352827235528089,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:38","startHours":11.879027551372092,"endHours":12.636550616785316,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:04","end":"05:49","startHours":5.061319962653092,"endHours":5.818843028066314,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:38","end":"06:35","startHours":5.629462261713008,"endHours":6.576366093479536,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:55","startHours":14.15159674761176,"endHours":14.909119813024983,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:44","end":"18:08","startHours":17.739212074677873,"endHours":18.13921207467787,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:56","end":"18:25","startHours":17.939212074677872,"endHours":18.412663990561136,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:41","end":"19:26","startHours":17.689212074677872,"endHours":19.439212074677872,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:38","startHours":23.87902755137209,"endHours":24.636550616785314,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:35","end":"08:00","startHours":6.576366093479536,"endHours":7.996721841129329,"quality":"inauspicious"},{"name":"Udveg","start":"08:00","end":"09:25","startHours":7.996721841129329,"endHours":9.41707758877912,"quality":"inauspicious"},{"name":"Chala","start":"09:25","end":"10:50","startHours":9.41707758877912,"endHours":10.837433336428912,"quality":"neutral"},{"name":"Labha","start":"10:50","end":"12:15","startHours":10.837433336428912,"endHours":12.257789084078706,"quality":"auspicious"},{"name":"Amṛta","start":"12:15","end":"13:41","startHours":12.257789084078706,"endHours":13.678144831728495,"quality":"auspicious"},{"name":"Kāla","start":"13:41","end":"15:06","startHours":13.678144831728495,"endHours":15.098500579378289,"quality":"inauspicious"},{"name":"Śubha","start":"15:06","end":"16:31","startHours":15.098500579378289,"endHours":16.518856327028082,"quality":"auspicious"},{"name":"Roga","start":"16:31","end":"17:56","startHours":16.518856327028082,"endHours":17.939212074677872,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:56","end":"19:31","startHours":17.939212074677872,"endHours":19.51885632702808,"quality":"inauspicious"},{"name":"Śubha","start":"19:31","end":"21:06","startHours":19.51885632702808,"endHours":21.09850057937829,"quality":"auspicious"},{"name":"Roga","start":"21:06","end":"22:41","startHours":21.09850057937829,"endHours":22.678144831728495,"quality":"inauspicious"},{"name":"Udveg","start":"22:41","end":"00:15","startHours":22.678144831728495,"endHours":24.257789084078702,"quality":"inauspicious"},{"name":"Chala","start":"00:15","end":"01:50","startHours":24.257789084078702,"endHours":25.837433336428912,"quality":"neutral"},{"name":"Labha","start":"01:50","end":"03:25","startHours":25.837433336428912,"endHours":27.41707758877912,"quality":"auspicious"},{"name":"Amṛta","start":"03:25","end":"05:00","startHours":27.41707758877912,"endHours":28.99672184112933,"quality":"auspicious"},{"name":"Kāla","start":"05:00","end":"06:35","startHours":28.99672184112933,"endHours":30.576366093479535,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:35","end":"07:35","startHours":6.576366093479536,"endHours":7.576366093479536,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:35","end":"08:35","startHours":7.576366093479536,"endHours":8.576366093479535,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:35","end":"09:35","startHours":8.576366093479535,"endHours":9.576366093479535,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:35","end":"10:35","startHours":9.576366093479535,"endHours":10.576366093479535,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:35","end":"11:35","startHours":10.576366093479535,"endHours":11.576366093479535,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:35","end":"12:35","startHours":11.576366093479535,"endHours":12.576366093479535,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:35","end":"13:35","startHours":12.576366093479535,"endHours":13.576366093479535,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:35","end":"14:35","startHours":13.576366093479535,"endHours":14.576366093479535,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:35","end":"15:35","startHours":14.576366093479535,"endHours":15.576366093479535,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:35","end":"16:35","startHours":15.576366093479535,"endHours":16.576366093479535,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:35","end":"17:35","startHours":16.576366093479535,"endHours":17.576366093479535,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:35","end":"18:35","startHours":17.576366093479535,"endHours":18.576366093479535,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:35","end":"19:35","startHours":18.576366093479535,"endHours":19.576366093479535,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:35","end":"20:35","startHours":19.576366093479535,"endHours":20.576366093479535,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:35","end":"21:35","startHours":20.576366093479535,"endHours":21.576366093479535,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:35","end":"22:35","startHours":21.576366093479535,"endHours":22.576366093479535,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:35","end":"23:35","startHours":22.576366093479535,"endHours":23.576366093479535,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:35","end":"00:35","startHours":23.576366093479535,"endHours":24.576366093479535,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:35","end":"01:35","startHours":24.576366093479535,"endHours":25.576366093479535,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:35","end":"02:35","startHours":25.576366093479535,"endHours":26.576366093479535,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:35","end":"03:35","startHours":26.576366093479535,"endHours":27.576366093479535,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:35","end":"04:35","startHours":27.576366093479535,"endHours":28.576366093479535,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:35","end":"05:35","startHours":28.576366093479535,"endHours":29.576366093479535,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:35","end":"06:35","startHours":29.576366093479535,"endHours":30.576366093479535,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","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":"North (Uttara)","chandraVasa":"West","rahuVasa":"North","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-11.188458020276693,"eotMinutes":-14.28334504472219,"ayanamsa":21.2008}},"calendars":{"vikram_samvat":1867,"vikram_samvatsara":"Subhānu","saka_samvat":1732,"saka_samvatsara":"Pramoda","bengali_samvat":1217,"malayalam_era":986,"nanakshahi_year":341,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Pratipada · Vikram 1867 Subhānu · Śaka 1732 Pramoda"},"festivals":[],"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":"ayodhya"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 20, 1810 CE · Ayodhyā · Vidhyamitra","description":"February 20, 1810 CE for Ayodhyā: Kṛṣṇa Pratipada, sūryodaya 06:35, sūryāsta 17:56.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1810-02-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1810-02-20","sa":"https://sa.vidhyamitra.com/city/ayodhya/1810-02-20","hi":"https://hi.vidhyamitra.com/city/ayodhya/1810-02-20","x-default":"https://vidhyamitra.com/city/ayodhya/1810-02-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T21:00:12.372Z","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":"2026-05-31T21:00:12.372Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T21:00:12.372Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}