{"id":"vidhyamitra:city-day:ayodhya:1691-05-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1691-05-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1691-05-12","date_display":"May 12, 1691 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":1691,"month":5,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2338816.770833,"kali_year":4793,"ahargana":1750351.2708,"sun":{"sidereal_longitude":32.5196,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":211.0914,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":178.5718,"elapsed_within_tithi_degrees":10.5718},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":211.0914,"elapsed_within_degrees":11.0914},"yoga":{"number":19,"name":"Parigha","sum_longitude":243.611},"karana":{"half_tithi_index":29,"name":"Bava"},"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":1691,"month":5,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2338816.770833,"ahargana":1750351.2708,"kali_year":4793,"ayanamsa_lahiri":19.5416,"grahas":{"sun":{"sidereal_longitude":31.82525800000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":208.72395800000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false,"latitude":-4.3059},"mars":{"sidereal_longitude":338.10125800000003,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":45.11015800000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":13.967458000000022,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":352.065258,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":222.07335799999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":317.9664,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":137.9664,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":1691,"month":5,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2338816.770833,"kali_year":4793,"ahargana":1750351.2708,"sun":{"sidereal_longitude":32.5196,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":211.0914,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":178.5718,"elapsed_within_tithi_degrees":10.5718},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":211.0914,"elapsed_within_degrees":11.0914},"yoga":{"number":19,"name":"Parigha","sum_longitude":243.611},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.306,"elongation":178.572},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.306,"opposition_distance":1.428}},"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":"05:15","sunsetLocal":"18:39","solarNoonLocal":"11:57","dayLengthHours":13.400048515374065,"dayLengthDisplay":"13 Hours 24 Mins 00 Secs","nightLengthDisplay":"10 Hours 36 Mins 00 Secs","moonriseLocal":"18:18","moonsetLocal":"05:12","rahuKala":{"name":"Rāhu Kāla","start":"08:36","end":"10:17","startHours":8.607428209828678,"endHours":10.282434274250434,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:38","end":"15:18","startHours":13.632446403093951,"endHours":15.30745246751571,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:15","end":"06:56","startHours":5.257416080985161,"endHours":6.932422145406919,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:23","end":"08:50","startHours":8.384094067905776,"endHours":8.830762351751577,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:49","end":"06:10","startHours":5.815751435792413,"endHours":6.173086062869055,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:31","end":"12:24","startHours":11.51077205482639,"endHours":12.404108622517995,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:28","end":"04:22","startHours":3.4707429456019523,"endHours":4.364079513293556,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:08","end":"05:15","startHours":4.140745371370656,"endHours":5.257416080985161,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:05","startHours":14.190781757901204,"endHours":15.084118325592808,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:27","end":"18:51","startHours":18.457464596359227,"endHours":18.857464596359225,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:39","end":"19:13","startHours":18.657464596359226,"endHours":19.215799951166478,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:24","end":"20:09","startHours":18.407464596359226,"endHours":20.157464596359226,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:31","end":"00:24","startHours":23.51077205482639,"endHours":24.404108622517995,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:15","end":"06:56","startHours":5.257416080985161,"endHours":6.932422145406919,"quality":"inauspicious"},{"name":"Śubha","start":"06:56","end":"08:36","startHours":6.932422145406919,"endHours":8.607428209828678,"quality":"auspicious"},{"name":"Roga","start":"08:36","end":"10:17","startHours":8.607428209828678,"endHours":10.282434274250434,"quality":"inauspicious"},{"name":"Udveg","start":"10:17","end":"11:57","startHours":10.282434274250434,"endHours":11.957440338672193,"quality":"inauspicious"},{"name":"Chala","start":"11:57","end":"13:38","startHours":11.957440338672193,"endHours":13.632446403093951,"quality":"neutral"},{"name":"Labha","start":"13:38","end":"15:18","startHours":13.632446403093951,"endHours":15.30745246751571,"quality":"auspicious"},{"name":"Amṛta","start":"15:18","end":"16:59","startHours":15.30745246751571,"endHours":16.982458531937468,"quality":"auspicious"},{"name":"Kāla","start":"16:59","end":"18:39","startHours":16.982458531937468,"endHours":18.657464596359226,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:39","end":"19:59","startHours":18.657464596359226,"endHours":19.982458531937468,"quality":"auspicious"},{"name":"Amṛta","start":"19:59","end":"21:18","startHours":19.982458531937468,"endHours":21.30745246751571,"quality":"auspicious"},{"name":"Kāla","start":"21:18","end":"22:38","startHours":21.30745246751571,"endHours":22.63244640309395,"quality":"inauspicious"},{"name":"Śubha","start":"22:38","end":"23:57","startHours":22.63244640309395,"endHours":23.957440338672193,"quality":"auspicious"},{"name":"Roga","start":"23:57","end":"01:17","startHours":23.957440338672193,"endHours":25.282434274250434,"quality":"inauspicious"},{"name":"Udveg","start":"01:17","end":"02:36","startHours":25.282434274250434,"endHours":26.607428209828676,"quality":"inauspicious"},{"name":"Chala","start":"02:36","end":"03:56","startHours":26.607428209828676,"endHours":27.932422145406917,"quality":"neutral"},{"name":"Labha","start":"03:56","end":"05:15","startHours":27.932422145406917,"endHours":29.25741608098516,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:15","end":"06:15","startHours":5.257416080985161,"endHours":6.257416080985161,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:15","end":"07:15","startHours":6.257416080985161,"endHours":7.257416080985161,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:15","end":"08:15","startHours":7.257416080985161,"endHours":8.257416080985161,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:15","end":"09:15","startHours":8.257416080985161,"endHours":9.257416080985161,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:15","end":"10:15","startHours":9.257416080985161,"endHours":10.257416080985161,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:15","end":"11:15","startHours":10.257416080985161,"endHours":11.257416080985161,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:15","end":"12:15","startHours":11.257416080985161,"endHours":12.257416080985161,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:15","end":"13:15","startHours":12.257416080985161,"endHours":13.257416080985161,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:15","end":"14:15","startHours":13.257416080985161,"endHours":14.257416080985161,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:15","end":"15:15","startHours":14.257416080985161,"endHours":15.257416080985161,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:15","end":"16:15","startHours":15.257416080985161,"endHours":16.25741608098516,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:15","end":"17:15","startHours":16.25741608098516,"endHours":17.25741608098516,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:15","end":"18:15","startHours":17.25741608098516,"endHours":18.25741608098516,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:15","end":"19:15","startHours":18.25741608098516,"endHours":19.25741608098516,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:15","end":"20:15","startHours":19.25741608098516,"endHours":20.25741608098516,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:15","end":"21:15","startHours":20.25741608098516,"endHours":21.25741608098516,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:15","end":"22:15","startHours":21.25741608098516,"endHours":22.25741608098516,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:15","end":"23:15","startHours":22.25741608098516,"endHours":23.25741608098516,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:15","end":"00:15","startHours":23.25741608098516,"endHours":24.25741608098516,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:15","end":"01:15","startHours":24.25741608098516,"endHours":25.25741608098516,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:15","end":"02:15","startHours":25.25741608098516,"endHours":26.25741608098516,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:15","end":"03:15","startHours":26.25741608098516,"endHours":27.25741608098516,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:15","end":"04:15","startHours":27.25741608098516,"endHours":28.25741608098516,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:15","end":"05:15","startHours":28.25741608098516,"endHours":29.25741608098516,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":18.10096732986419,"eotMinutes":3.7375796796685163,"ayanamsa":19.5416}},"calendars":{"vikram_samvat":1748,"vikram_samvatsara":"Tāraṇa","saka_samvat":1613,"saka_samvatsara":"Prajāpati","bengali_samvat":1098,"malayalam_era":867,"nanakshahi_year":222,"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":"Vṛṣabha (Vaikāsi)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Pūrṇimā · Vikram 1748 Tāraṇa · Śaka 1613 Prajāpati"},"festivals":[{"id":"buddha-purnima","name":"Buddha Pūrṇimā","name_sanskrit":"बुद्ध पूर्णिमा","name_alternates":["Vesak","Vaiśākhī Pūrṇimā","Vesakha"],"tradition":"Pan-Hindu","associated_deity":"Buddha (21st avatāra of Krishna per Bhāgavata 1.3.24)","deity_avatara_index":21,"significance":"Buddha's birth, enlightenment, and mahāparinirvāṇa all on this Vaiśākha Pūrṇimā. Most sacred Buddhist + Vaishnava day.","vrata":true,"primary_observance":"Day-long observance of compassion (karuṇā) and ahiṁsā; Buddha-stuti at sunset","detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":1,"related_chart":"buddha","historical_anchor":{"event":"Bhagavān Buddha's birth at Lumbinī","date_julian":"-0562-04-11","location":"Lumbinī, Nepal"},"sources":["Bhāgavata Purāṇa 1.3.24","Pāli Tipiṭaka","Buddhacarita by Aśvaghoṣa"]},{"id":"kurma-jayanti","name":"Kūrma Jayantī","name_sanskrit":"कूर्म जयन्ती","tradition":"Vaishnava","associated_deity":"Kūrma (2nd avatāra of Krishna)","deity_avatara_index":11,"significance":"Kūrma supports Mount Mandara during the Sāgara-mathana (churning of the cosmic ocean).","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":4,"sources":["Bhāgavata 8.7-8"]},{"id":"chandika-jayanti","name":"Chaṇḍikā Jayantī","name_sanskrit":"चण्डिका जयन्ती","tradition":"Shakta","associated_deity":"Devī Chaṇḍikā","significance":"Devī's fierce protective form. Often coincides with Buddha Pūrṇimā.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":5},{"id":"chitra-paurnami","name":"Citrā Paurṇamī","name_sanskrit":"चित्रा पौर्णमी","tradition":"Regional","significance":"Tamil regional Vaiśākha Pūrṇimā observance; honors Citragupta.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":6},{"id":"vaishakha-purnima-vrat","name":"Vaiśākha Pūrṇimā Vrat","name_sanskrit":"वैशाख पूर्णिमा व्रत","tradition":"Pan-Hindu","significance":"General Pūrṇimā vrat in Vaiśākha (highly auspicious month).","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":7}],"todays_walk":{"walk":{"id":"buddha-purnima-walk","name":"Buddha Pūrṇimā Walk","name_sanskrit":"बुद्ध पूर्णिमा यात्रा","type":"festival","description":"Bhāgavata 1.3.24 (Buddha as 21st avatāra) + BG 12.13 (compassion) + Dhammapada parallels.","step_count":7,"url":"/walk/buddha-purnima-walk"},"reason":"Today is Buddha Pūrṇimā — its dedicated walk."},"cosmic_resonances":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā + Viśākhā","url":"/day/-0562-04-11","relevance":1},{"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}]},"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 12, 1691 CE · Ayodhyā · Vidhyamitra","description":"May 12, 1691 CE for Ayodhyā: Śukla Pūrṇimā, sūryodaya 05:15, sūryāsta 18:39.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1691-05-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1691-05-12","sa":"https://sa.vidhyamitra.com/city/ayodhya/1691-05-12","hi":"https://hi.vidhyamitra.com/city/ayodhya/1691-05-12","x-default":"https://vidhyamitra.com/city/ayodhya/1691-05-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T03:59:37.014Z","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":"2026-06-03T03:59:37.014Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T03:59:37.014Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}