{"id":"vidhyamitra:city-day:ayodhya:1818-12-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1818-12-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1818-12-12","date_display":"December 12, 1818 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":1818,"month":12,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2385415.770833,"kali_year":4920,"ahargana":1796950.2708,"sun":{"sidereal_longitude":238.1931,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":51.9653,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":173.7723,"elapsed_within_tithi_degrees":5.7723},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4,"moon_longitude":51.9653,"elapsed_within_degrees":11.9653},"yoga":{"number":22,"name":"Sādhya","sum_longitude":290.1584},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1818,"month":12,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2385415.770833,"ahargana":1796950.2708,"kali_year":4920,"ayanamsa_lahiri":21.3238,"grahas":{"sun":{"sidereal_longitude":238.15713300000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":51.190833,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false,"latitude":3.0695},"mars":{"sidereal_longitude":233.958533,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":257.7677329999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":267.75813300000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":262.560033,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":322.5005329999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":8.9271,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":188.9271,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"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":1818,"month":12,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2385415.770833,"kali_year":4920,"ahargana":1796950.2708,"sun":{"sidereal_longitude":238.1931,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":51.9653,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":173.7723,"elapsed_within_tithi_degrees":5.7723},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4,"moon_longitude":51.9653,"elapsed_within_degrees":11.9653},"yoga":{"number":22,"name":"Sādhya","sum_longitude":290.1584},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.069,"elongation":173.772},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.069,"opposition_distance":6.228}},"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":"06:41","sunsetLocal":"17:10","solarNoonLocal":"11:56","dayLengthHours":10.485768079231324,"dayLengthDisplay":"10 Hours 29 Mins 09 Secs","nightLengthDisplay":"13 Hours 30 Mins 51 Secs","moonriseLocal":"16:37","moonsetLocal":"06:18","rahuKala":{"name":"Rāhu Kāla","start":"09:18","end":"10:37","startHours":9.305933162506951,"endHours":10.616654172410867,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:14","end":"14:33","startHours":13.238096192218698,"endHours":14.548817202122613,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:41","end":"08:00","startHours":6.6844911426991205,"endHours":7.995212152603036,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:08","end":"09:29","startHours":9.13117036118643,"endHours":9.480695963827474,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:07","end":"07:24","startHours":7.121398146000425,"endHours":7.401018628113261,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:35","end":"12:17","startHours":11.577849579673737,"endHours":12.276900784955826,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:17","end":"05:59","startHours":5.286388732134943,"endHours":5.985439937417032,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:49","end":"06:41","startHours":5.81067713609651,"endHours":6.6844911426991205,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:41","end":"14:22","startHours":13.675003195520002,"endHours":14.374054400802091,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:58","end":"17:22","startHours":16.970259221930444,"endHours":17.370259221930443,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:10","end":"17:36","startHours":17.170259221930444,"endHours":17.607166225231747,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:55","end":"18:40","startHours":16.920259221930444,"endHours":18.670259221930444,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:35","end":"00:17","startHours":23.57784957967374,"endHours":24.276900784955828,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:41","end":"08:00","startHours":6.6844911426991205,"endHours":7.995212152603036,"quality":"inauspicious"},{"name":"Śubha","start":"08:00","end":"09:18","startHours":7.995212152603036,"endHours":9.305933162506951,"quality":"auspicious"},{"name":"Roga","start":"09:18","end":"10:37","startHours":9.305933162506951,"endHours":10.616654172410867,"quality":"inauspicious"},{"name":"Udveg","start":"10:37","end":"11:56","startHours":10.616654172410867,"endHours":11.927375182314783,"quality":"inauspicious"},{"name":"Chala","start":"11:56","end":"13:14","startHours":11.927375182314783,"endHours":13.238096192218698,"quality":"neutral"},{"name":"Labha","start":"13:14","end":"14:33","startHours":13.238096192218698,"endHours":14.548817202122613,"quality":"auspicious"},{"name":"Amṛta","start":"14:33","end":"15:52","startHours":14.548817202122613,"endHours":15.859538212026528,"quality":"auspicious"},{"name":"Kāla","start":"15:52","end":"17:10","startHours":15.859538212026528,"endHours":17.170259221930444,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:10","end":"18:52","startHours":17.170259221930444,"endHours":18.85953821202653,"quality":"auspicious"},{"name":"Amṛta","start":"18:52","end":"20:33","startHours":18.85953821202653,"endHours":20.548817202122613,"quality":"auspicious"},{"name":"Kāla","start":"20:33","end":"22:14","startHours":20.548817202122613,"endHours":22.2380961922187,"quality":"inauspicious"},{"name":"Śubha","start":"22:14","end":"23:56","startHours":22.2380961922187,"endHours":23.927375182314783,"quality":"auspicious"},{"name":"Roga","start":"23:56","end":"01:37","startHours":23.927375182314783,"endHours":25.61665417241087,"quality":"inauspicious"},{"name":"Udveg","start":"01:37","end":"03:18","startHours":25.61665417241087,"endHours":27.30593316250695,"quality":"inauspicious"},{"name":"Chala","start":"03:18","end":"05:00","startHours":27.30593316250695,"endHours":28.995212152603035,"quality":"neutral"},{"name":"Labha","start":"05:00","end":"06:41","startHours":28.995212152603035,"endHours":30.68449114269912,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:41","end":"07:41","startHours":6.6844911426991205,"endHours":7.6844911426991205,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:41","end":"08:41","startHours":7.6844911426991205,"endHours":8.68449114269912,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:41","end":"09:41","startHours":8.68449114269912,"endHours":9.68449114269912,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:41","end":"10:41","startHours":9.68449114269912,"endHours":10.68449114269912,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:41","end":"11:41","startHours":10.68449114269912,"endHours":11.68449114269912,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:41","end":"12:41","startHours":11.68449114269912,"endHours":12.68449114269912,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:41","end":"13:41","startHours":12.68449114269912,"endHours":13.68449114269912,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:41","end":"14:41","startHours":13.68449114269912,"endHours":14.68449114269912,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:41","end":"15:41","startHours":14.68449114269912,"endHours":15.68449114269912,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:41","end":"16:41","startHours":15.68449114269912,"endHours":16.68449114269912,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:41","end":"17:41","startHours":16.68449114269912,"endHours":17.68449114269912,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:41","end":"18:41","startHours":17.68449114269912,"endHours":18.68449114269912,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:41","end":"19:41","startHours":18.68449114269912,"endHours":19.68449114269912,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:41","end":"20:41","startHours":19.68449114269912,"endHours":20.68449114269912,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:41","end":"21:41","startHours":20.68449114269912,"endHours":21.68449114269912,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:41","end":"22:41","startHours":21.68449114269912,"endHours":22.68449114269912,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:41","end":"23:41","startHours":22.68449114269912,"endHours":23.68449114269912,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:41","end":"00:41","startHours":23.68449114269912,"endHours":24.68449114269912,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:41","end":"01:41","startHours":24.68449114269912,"endHours":25.68449114269912,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:41","end":"02:41","startHours":25.68449114269912,"endHours":26.68449114269912,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:41","end":"03:41","startHours":26.68449114269912,"endHours":27.68449114269912,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:41","end":"04:41","startHours":27.68449114269912,"endHours":28.68449114269912,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:41","end":"05:41","startHours":28.68449114269912,"endHours":29.68449114269912,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:41","end":"06:41","startHours":29.68449114269912,"endHours":30.68449114269912,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.019740456922737,"eotMinutes":5.541489061113115,"ayanamsa":21.3238}},"calendars":{"vikram_samvat":1875,"vikram_samvatsara":"Khara","saka_samvat":1740,"saka_samvatsara":"Bahudhānya","bengali_samvat":1225,"malayalam_era":994,"nanakshahi_year":349,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Pūrṇimā · Vikram 1875 Khara · Śaka 1740 Bahudhānya"},"festivals":[{"id":"datta-jayanti","name":"Datta Jayantī","name_sanskrit":"दत्त जयन्ती","tradition":"Pan-Hindu","associated_deity":"Dattātreya (Brahmā + Viṣṇu + Śiva combined)","significance":"Birth of Dattātreya from Atri-Anusūyā; tri-mūrti unified avatāra.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":2,"sources":["Mārkaṇḍeya Purāṇa","Bhāgavata 4.1.15"]},{"id":"annapurna-jayanti","name":"Annapūrṇā Jayantī","name_sanskrit":"अन्नपूर्णा जयन्ती","tradition":"Shakta","associated_deity":"Devī Annapūrṇā (Pārvatī as nourishing mother)","significance":"Devī Annapūrṇā's manifestation; food-grain pūjā; Mārgaśīrṣa Pūrṇimā tradition.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":3,"sources":["Annapūrṇā-stotra by Śaṅkarācārya"]}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","relevance":0.5},{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","relevance":0.5}]},"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 December 12, 1818 CE · Ayodhyā · Vidhyamitra","description":"December 12, 1818 CE for Ayodhyā: Śukla Pūrṇimā, sūryodaya 06:41, sūryāsta 17:10.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1818-12-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1818-12-12","sa":"https://sa.vidhyamitra.com/city/ayodhya/1818-12-12","hi":"https://hi.vidhyamitra.com/city/ayodhya/1818-12-12","x-default":"https://vidhyamitra.com/city/ayodhya/1818-12-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T22:14:46.284Z","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":"2026-05-31T22:14:46.284Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T22:14:46.284Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}