{"id":"vidhyamitra:city-day:ayodhya:1807-05-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1807-05-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1807-05-21","date_display":"May 21, 1807 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":1807,"month":5,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2381192.770833,"kali_year":4909,"ahargana":1792727.2708,"sun":{"sidereal_longitude":38.2408,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":211.5493,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":173.3085,"elapsed_within_tithi_degrees":5.3085},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":211.5493,"elapsed_within_degrees":11.5493},"yoga":{"number":19,"name":"Parigha","sum_longitude":249.7901},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"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":1807,"month":5,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2381192.770833,"ahargana":1792727.2708,"kali_year":4909,"ayanamsa_lahiri":21.1623,"grahas":{"sun":{"sidereal_longitude":37.85518300000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":209.46048300000007,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false,"latitude":-1.6209},"mars":{"sidereal_longitude":141.30328300000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":17.73358300000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":293.87988300000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":74.73688300000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":196.282783,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":232.682,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":52.682,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":1807,"month":5,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2381192.770833,"kali_year":4909,"ahargana":1792727.2708,"sun":{"sidereal_longitude":38.2408,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":211.5493,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":173.3085,"elapsed_within_tithi_degrees":5.3085},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":211.5493,"elapsed_within_degrees":11.5493},"yoga":{"number":19,"name":"Parigha","sum_longitude":249.7901},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.621,"elongation":173.308},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.621,"opposition_distance":6.692}},"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":"05:11","sunsetLocal":"18:44","solarNoonLocal":"11:58","dayLengthHours":13.542496300940746,"dayLengthDisplay":"13 Hours 32 Mins 33 Secs","nightLengthDisplay":"10 Hours 27 Mins 27 Secs","moonriseLocal":"17:59","moonsetLocal":"04:49","rahuKala":{"name":"Rāhu Kāla","start":"13:39","end":"15:21","startHours":13.653555074576294,"endHours":15.346367112193887,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:11","end":"06:53","startHours":5.189494886488328,"endHours":6.882306924105921,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:35","end":"10:16","startHours":8.575118961723515,"endHours":10.267930999341107,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:21","end":"08:48","startHours":8.349410690041168,"endHours":8.80082723340586,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:45","end":"06:07","startHours":5.753765565694192,"endHours":6.114898800385946,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:31","end":"12:25","startHours":11.509326493594008,"endHours":12.412159580323392,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:23","end":"04:17","startHours":3.383828713029562,"endHours":4.286661799758945,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:04","end":"05:11","startHours":4.060953528076599,"endHours":5.189494886488328,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:13","end":"15:07","startHours":14.21782575378216,"endHours":15.120658840511544,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:32","end":"18:56","startHours":18.531991187429075,"endHours":18.931991187429073,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:44","end":"19:18","startHours":18.731991187429074,"endHours":19.29626186663494,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:29","end":"20:14","startHours":18.481991187429074,"endHours":20.231991187429074,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:31","end":"00:25","startHours":23.50932649359401,"endHours":24.41215958032339,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:11","end":"06:53","startHours":5.189494886488328,"endHours":6.882306924105921,"quality":"auspicious"},{"name":"Roga","start":"06:53","end":"08:35","startHours":6.882306924105921,"endHours":8.575118961723515,"quality":"inauspicious"},{"name":"Udveg","start":"08:35","end":"10:16","startHours":8.575118961723515,"endHours":10.267930999341107,"quality":"inauspicious"},{"name":"Chala","start":"10:16","end":"11:58","startHours":10.267930999341107,"endHours":11.9607430369587,"quality":"neutral"},{"name":"Labha","start":"11:58","end":"13:39","startHours":11.9607430369587,"endHours":13.653555074576294,"quality":"auspicious"},{"name":"Amṛta","start":"13:39","end":"15:21","startHours":13.653555074576294,"endHours":15.346367112193887,"quality":"auspicious"},{"name":"Kāla","start":"15:21","end":"17:02","startHours":15.346367112193887,"endHours":17.03917914981148,"quality":"inauspicious"},{"name":"Śubha","start":"17:02","end":"18:44","startHours":17.03917914981148,"endHours":18.731991187429074,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:44","end":"20:02","startHours":18.731991187429074,"endHours":20.03917914981148,"quality":"auspicious"},{"name":"Kāla","start":"20:02","end":"21:21","startHours":20.03917914981148,"endHours":21.34636711219389,"quality":"inauspicious"},{"name":"Śubha","start":"21:21","end":"22:39","startHours":21.34636711219389,"endHours":22.653555074576296,"quality":"auspicious"},{"name":"Roga","start":"22:39","end":"23:58","startHours":22.653555074576296,"endHours":23.9607430369587,"quality":"inauspicious"},{"name":"Udveg","start":"23:58","end":"01:16","startHours":23.9607430369587,"endHours":25.267930999341107,"quality":"inauspicious"},{"name":"Chala","start":"01:16","end":"02:35","startHours":25.267930999341107,"endHours":26.575118961723515,"quality":"neutral"},{"name":"Labha","start":"02:35","end":"03:53","startHours":26.575118961723515,"endHours":27.88230692410592,"quality":"auspicious"},{"name":"Amṛta","start":"03:53","end":"05:11","startHours":27.88230692410592,"endHours":29.189494886488326,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:11","end":"06:11","startHours":5.189494886488328,"endHours":6.189494886488328,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:11","end":"07:11","startHours":6.189494886488328,"endHours":7.189494886488328,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:11","end":"08:11","startHours":7.189494886488328,"endHours":8.189494886488328,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:11","end":"09:11","startHours":8.189494886488328,"endHours":9.189494886488328,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:11","end":"10:11","startHours":9.189494886488328,"endHours":10.189494886488328,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:11","end":"11:11","startHours":10.189494886488328,"endHours":11.189494886488328,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:11","end":"12:11","startHours":11.189494886488328,"endHours":12.189494886488328,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:11","end":"13:11","startHours":12.189494886488328,"endHours":13.189494886488328,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:11","end":"14:11","startHours":13.189494886488328,"endHours":14.189494886488328,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:11","end":"15:11","startHours":14.189494886488328,"endHours":15.189494886488328,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:11","end":"16:11","startHours":15.189494886488328,"endHours":16.189494886488326,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:11","end":"17:11","startHours":16.189494886488326,"endHours":17.189494886488326,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:11","end":"18:11","startHours":17.189494886488326,"endHours":18.189494886488326,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:11","end":"19:11","startHours":18.189494886488326,"endHours":19.189494886488326,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:11","end":"20:11","startHours":19.189494886488326,"endHours":20.189494886488326,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:11","end":"21:11","startHours":20.189494886488326,"endHours":21.189494886488326,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:11","end":"22:11","startHours":21.189494886488326,"endHours":22.189494886488326,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:11","end":"23:11","startHours":22.189494886488326,"endHours":23.189494886488326,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:11","end":"00:11","startHours":23.189494886488326,"endHours":24.189494886488326,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:11","end":"01:11","startHours":24.189494886488326,"endHours":25.189494886488326,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:11","end":"02:11","startHours":25.189494886488326,"endHours":26.189494886488326,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:11","end":"03:11","startHours":26.189494886488326,"endHours":27.189494886488326,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:11","end":"04:11","startHours":27.189494886488326,"endHours":28.189494886488326,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:11","end":"05:11","startHours":28.189494886488326,"endHours":29.189494886488326,"planetary_lord":"Moon"}],"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":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":19.936942694841797,"eotMinutes":3.539417782478063,"ayanamsa":21.1623}},"calendars":{"vikram_samvat":1864,"vikram_samvatsara":"Vikrama","saka_samvat":1729,"saka_samvatsara":"Prabhava","bengali_samvat":1214,"malayalam_era":983,"nanakshahi_year":338,"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 1864 Vikrama · Śaka 1729 Prabhava"},"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 21, 1807 CE · Ayodhyā · Vidhyamitra","description":"May 21, 1807 CE for Ayodhyā: Śukla Pūrṇimā, sūryodaya 05:11, sūryāsta 18:44.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1807-05-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1807-05-21","sa":"https://sa.vidhyamitra.com/city/ayodhya/1807-05-21","hi":"https://hi.vidhyamitra.com/city/ayodhya/1807-05-21","x-default":"https://vidhyamitra.com/city/ayodhya/1807-05-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T20:27:25.078Z","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":"2026-05-31T20:27:25.078Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T20:27:25.078Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}