{"id":"vidhyamitra:city-day:ayodhya:1866-04-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1866-04-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1866-04-16","date_display":"April 16, 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":4,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2402707.770833,"kali_year":4968,"ahargana":1814242.2708,"sun":{"sidereal_longitude":4.2615,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":13.6928,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":9.4313,"elapsed_within_tithi_degrees":9.4313},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":13.6928,"elapsed_within_degrees":0.3595},"yoga":{"number":2,"name":"Prīti","sum_longitude":17.9543},"karana":{"half_tithi_index":1,"name":"Bava"},"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":1866,"month":4,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2402707.770833,"ahargana":1814242.2708,"kali_year":4968,"ayanamsa_lahiri":21.9852,"grahas":{"sun":{"sidereal_longitude":3.8311519999999746,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":14.509951999999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false,"latitude":-1.6097},"mars":{"sidereal_longitude":325.985452,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":2.828552000000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":280.815252,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"venus":{"sidereal_longitude":18.029251999999985,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":199.09565199999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":172.7137,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":352.7137,"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":4,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2402707.770833,"kali_year":4968,"ahargana":1814242.2708,"sun":{"sidereal_longitude":4.2615,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":13.6928,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":9.4313,"elapsed_within_tithi_degrees":9.4313},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":13.6928,"elapsed_within_degrees":0.3595},"yoga":{"number":2,"name":"Prīti","sum_longitude":17.9543},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.61,"elongation":9.431},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.61,"opposition_distance":170.569}},"eclipse_window_40days":[{"offset_days":-16,"type":"lunar","occurs":true,"moon_latitude":-0.419,"opposition_distance":0.379}]},"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":"05:37","sunsetLocal":"18:25","solarNoonLocal":"12:01","dayLengthHours":12.80646311716452,"dayLengthDisplay":"12 Hours 48 Mins 23 Secs","nightLengthDisplay":"11 Hours 11 Mins 37 Secs","moonriseLocal":"06:13","moonsetLocal":"19:15","rahuKala":{"name":"Rāhu Kāla","start":"07:13","end":"08:49","startHours":7.217054812453331,"endHours":8.817862702098896,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:25","end":"12:01","startHours":10.418670591744462,"endHours":12.019478481390028,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:37","end":"15:13","startHours":13.620286371035592,"endHours":15.221094260681157,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:36","end":"09:02","startHours":8.604421650146154,"endHours":9.031303754051638,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:09","end":"06:29","startHours":6.149849552689622,"endHours":6.491355235814009,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:36","end":"12:27","startHours":11.592596377484542,"endHours":12.44636058529551,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:55","end":"04:46","startHours":3.9087185071858306,"endHours":4.762482714996798,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:33","end":"05:37","startHours":4.549041663044056,"endHours":5.6162469228077665,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"15:00","startHours":14.153889000917447,"endHours":15.007653208728415,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:13","end":"18:37","startHours":18.222710039972288,"endHours":18.622710039972286,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:25","end":"18:57","startHours":18.422710039972287,"endHours":18.956312669854142,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:10","end":"19:55","startHours":18.172710039972287,"endHours":19.922710039972287,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:36","end":"00:27","startHours":23.59259637748454,"endHours":24.44636058529551,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:37","end":"07:13","startHours":5.6162469228077665,"endHours":7.217054812453331,"quality":"auspicious"},{"name":"Kāla","start":"07:13","end":"08:49","startHours":7.217054812453331,"endHours":8.817862702098896,"quality":"inauspicious"},{"name":"Śubha","start":"08:49","end":"10:25","startHours":8.817862702098896,"endHours":10.418670591744462,"quality":"auspicious"},{"name":"Roga","start":"10:25","end":"12:01","startHours":10.418670591744462,"endHours":12.019478481390028,"quality":"inauspicious"},{"name":"Udveg","start":"12:01","end":"13:37","startHours":12.019478481390028,"endHours":13.620286371035592,"quality":"inauspicious"},{"name":"Chala","start":"13:37","end":"15:13","startHours":13.620286371035592,"endHours":15.221094260681157,"quality":"neutral"},{"name":"Labha","start":"15:13","end":"16:49","startHours":15.221094260681157,"endHours":16.82190215032672,"quality":"auspicious"},{"name":"Amṛta","start":"16:49","end":"18:25","startHours":16.82190215032672,"endHours":18.422710039972287,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:25","end":"19:49","startHours":18.422710039972287,"endHours":19.82190215032672,"quality":"neutral"},{"name":"Labha","start":"19:49","end":"21:13","startHours":19.82190215032672,"endHours":21.221094260681156,"quality":"auspicious"},{"name":"Amṛta","start":"21:13","end":"22:37","startHours":21.221094260681156,"endHours":22.62028637103559,"quality":"auspicious"},{"name":"Kāla","start":"22:37","end":"00:01","startHours":22.62028637103559,"endHours":24.019478481390028,"quality":"inauspicious"},{"name":"Śubha","start":"00:01","end":"01:25","startHours":24.019478481390028,"endHours":25.418670591744462,"quality":"auspicious"},{"name":"Roga","start":"01:25","end":"02:49","startHours":25.418670591744462,"endHours":26.817862702098896,"quality":"inauspicious"},{"name":"Udveg","start":"02:49","end":"04:13","startHours":26.817862702098896,"endHours":28.217054812453334,"quality":"inauspicious"},{"name":"Chala","start":"04:13","end":"05:37","startHours":28.217054812453334,"endHours":29.61624692280777,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:37","end":"06:37","startHours":5.6162469228077665,"endHours":6.6162469228077665,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:37","end":"07:37","startHours":6.6162469228077665,"endHours":7.6162469228077665,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:37","end":"08:37","startHours":7.6162469228077665,"endHours":8.616246922807766,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:37","end":"09:37","startHours":8.616246922807766,"endHours":9.616246922807766,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:37","end":"10:37","startHours":9.616246922807766,"endHours":10.616246922807766,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:37","end":"11:37","startHours":10.616246922807766,"endHours":11.616246922807766,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:37","end":"12:37","startHours":11.616246922807766,"endHours":12.616246922807766,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:37","end":"13:37","startHours":12.616246922807766,"endHours":13.616246922807766,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:37","end":"14:37","startHours":13.616246922807766,"endHours":14.616246922807766,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:37","end":"15:37","startHours":14.616246922807766,"endHours":15.616246922807766,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:37","end":"16:37","startHours":15.616246922807766,"endHours":16.61624692280777,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:37","end":"17:37","startHours":16.61624692280777,"endHours":17.61624692280777,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:37","end":"18:37","startHours":17.61624692280777,"endHours":18.61624692280777,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:37","end":"19:37","startHours":18.61624692280777,"endHours":19.61624692280777,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:37","end":"20:37","startHours":19.61624692280777,"endHours":20.61624692280777,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:37","end":"21:37","startHours":20.61624692280777,"endHours":21.61624692280777,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:37","end":"22:37","startHours":21.61624692280777,"endHours":22.61624692280777,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:37","end":"23:37","startHours":22.61624692280777,"endHours":23.61624692280777,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:37","end":"00:37","startHours":23.61624692280777,"endHours":24.61624692280777,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:37","end":"01:37","startHours":24.61624692280777,"endHours":25.61624692280777,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:37","end":"02:37","startHours":25.61624692280777,"endHours":26.61624692280777,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:37","end":"03:37","startHours":26.61624692280777,"endHours":27.61624692280777,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:37","end":"04:37","startHours":27.61624692280777,"endHours":28.61624692280777,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:37","end":"05:37","startHours":28.61624692280777,"endHours":29.61624692280777,"planetary_lord":"Venus"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":9.97437566276067,"eotMinutes":0.015291116598477705,"ayanamsa":21.9852}},"calendars":{"vikram_samvat":1923,"vikram_samvatsara":"Pramāthi","saka_samvat":1788,"saka_samvatsara":"Akṣaya","bengali_samvat":1273,"malayalam_era":1042,"nanakshahi_year":397,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Pratipada · Vikram 1923 Pramāthi · Śaka 1788 Akṣaya"},"festivals":[],"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 April 16, 1866 CE · Ayodhyā · Vidhyamitra","description":"April 16, 1866 CE for Ayodhyā: Śukla Pratipada, sūryodaya 05:37, sūryāsta 18:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1866-04-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1866-04-16","sa":"https://sa.vidhyamitra.com/city/ayodhya/1866-04-16","hi":"https://hi.vidhyamitra.com/city/ayodhya/1866-04-16","x-default":"https://vidhyamitra.com/city/ayodhya/1866-04-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T15:46:49.148Z","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":"2026-06-01T15:46:49.148Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T15:46:49.148Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}