{"id":"vidhyamitra:city-day:ayodhya:1810-05-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1810-05-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1810-05-13","date_display":"May 13, 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":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2382280.770833,"kali_year":4912,"ahargana":1793815.2708,"sun":{"sidereal_longitude":30.8033,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":137.6331,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":106.8298,"elapsed_within_tithi_degrees":10.8298},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":137.6331,"elapsed_within_degrees":4.2998},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":168.4363},"karana":{"half_tithi_index":17,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":5,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2382280.770833,"ahargana":1793815.2708,"kali_year":4912,"ayanamsa_lahiri":21.2039,"grahas":{"sun":{"sidereal_longitude":30.37741299999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":135.560113,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false,"latitude":-2.7315},"mars":{"sidereal_longitude":42.04761300000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":50.59491300000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":22.661113,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":48.098513000000025,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":234.24111300000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":175.0345,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":355.0345,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"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":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2382280.770833,"kali_year":4912,"ahargana":1793815.2708,"sun":{"sidereal_longitude":30.8033,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":137.6331,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":106.8298,"elapsed_within_tithi_degrees":10.8298},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":137.6331,"elapsed_within_degrees":4.2998},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":168.4363},"karana":{"half_tithi_index":17,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.732,"elongation":106.83},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.732,"opposition_distance":73.17}},"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":"18:40","solarNoonLocal":"11:57","dayLengthHours":13.40433086165864,"dayLengthDisplay":"13 Hours 24 Mins 16 Secs","nightLengthDisplay":"10 Hours 35 Mins 44 Secs","moonriseLocal":"12:37","moonsetLocal":"01:19","rahuKala":{"name":"Rāhu Kāla","start":"16:59","end":"18:40","startHours":16.98380009406272,"endHours":18.659341451770047,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:57","end":"13:38","startHours":11.957176020940729,"endHours":13.632717378648056,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:18","end":"16:59","startHours":15.308258736355388,"endHours":16.98380009406272,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:23","end":"08:50","startHours":8.38268779116509,"endHours":8.829498819887046,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:49","end":"06:10","startHours":5.813524376013851,"endHours":6.170973198991415,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:31","end":"12:24","startHours":11.510364992218772,"endHours":12.403987049662682,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:28","end":"04:22","startHours":3.4677664752235895,"endHours":4.361388532667499,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:08","end":"05:15","startHours":4.137983018306521,"endHours":5.255010590111408,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:05","startHours":14.191231164550501,"endHours":15.084853221994411,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:28","end":"18:52","startHours":18.459341451770047,"endHours":18.859341451770046,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:40","end":"19:13","startHours":18.659341451770047,"endHours":19.21785523767249,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:25","end":"20:10","startHours":18.409341451770047,"endHours":20.159341451770047,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:31","end":"00:24","startHours":23.510364992218776,"endHours":24.403987049662682,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:15","end":"06:56","startHours":5.255010590111408,"endHours":6.9305519478187385,"quality":"inauspicious"},{"name":"Chala","start":"06:56","end":"08:36","startHours":6.9305519478187385,"endHours":8.606093305526068,"quality":"neutral"},{"name":"Labha","start":"08:36","end":"10:17","startHours":8.606093305526068,"endHours":10.281634663233397,"quality":"auspicious"},{"name":"Amṛta","start":"10:17","end":"11:57","startHours":10.281634663233397,"endHours":11.957176020940729,"quality":"auspicious"},{"name":"Kāla","start":"11:57","end":"13:38","startHours":11.957176020940729,"endHours":13.632717378648056,"quality":"inauspicious"},{"name":"Śubha","start":"13:38","end":"15:18","startHours":13.632717378648056,"endHours":15.308258736355388,"quality":"auspicious"},{"name":"Roga","start":"15:18","end":"16:59","startHours":15.308258736355388,"endHours":16.98380009406272,"quality":"inauspicious"},{"name":"Udveg","start":"16:59","end":"18:40","startHours":16.98380009406272,"endHours":18.659341451770047,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:40","end":"19:59","startHours":18.659341451770047,"endHours":19.983800094062715,"quality":"auspicious"},{"name":"Roga","start":"19:59","end":"21:18","startHours":19.983800094062715,"endHours":21.308258736355388,"quality":"inauspicious"},{"name":"Udveg","start":"21:18","end":"22:38","startHours":21.308258736355388,"endHours":22.632717378648056,"quality":"inauspicious"},{"name":"Chala","start":"22:38","end":"23:57","startHours":22.632717378648056,"endHours":23.95717602094073,"quality":"neutral"},{"name":"Labha","start":"23:57","end":"01:17","startHours":23.95717602094073,"endHours":25.281634663233397,"quality":"auspicious"},{"name":"Amṛta","start":"01:17","end":"02:36","startHours":25.281634663233397,"endHours":26.606093305526066,"quality":"auspicious"},{"name":"Kāla","start":"02:36","end":"03:56","startHours":26.606093305526066,"endHours":27.930551947818735,"quality":"inauspicious"},{"name":"Śubha","start":"03:56","end":"05:15","startHours":27.930551947818735,"endHours":29.255010590111407,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:15","end":"06:15","startHours":5.255010590111408,"endHours":6.255010590111408,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:15","end":"07:15","startHours":6.255010590111408,"endHours":7.255010590111408,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:15","end":"08:15","startHours":7.255010590111408,"endHours":8.255010590111407,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:15","end":"09:15","startHours":8.255010590111407,"endHours":9.255010590111407,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:15","end":"10:15","startHours":9.255010590111407,"endHours":10.255010590111407,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:15","end":"11:15","startHours":10.255010590111407,"endHours":11.255010590111407,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:15","end":"12:15","startHours":11.255010590111407,"endHours":12.255010590111407,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:15","end":"13:15","startHours":12.255010590111407,"endHours":13.255010590111407,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:15","end":"14:15","startHours":13.255010590111407,"endHours":14.255010590111407,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:15","end":"15:15","startHours":14.255010590111407,"endHours":15.255010590111407,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:15","end":"16:15","startHours":15.255010590111407,"endHours":16.255010590111407,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:15","end":"17:15","startHours":16.255010590111407,"endHours":17.255010590111407,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:15","end":"18:15","startHours":17.255010590111407,"endHours":18.255010590111407,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:15","end":"19:15","startHours":18.255010590111407,"endHours":19.255010590111407,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:15","end":"20:15","startHours":19.255010590111407,"endHours":20.255010590111407,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:15","end":"21:15","startHours":20.255010590111407,"endHours":21.255010590111407,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:15","end":"22:15","startHours":21.255010590111407,"endHours":22.255010590111407,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:15","end":"23:15","startHours":22.255010590111407,"endHours":23.255010590111407,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:15","end":"00:15","startHours":23.255010590111407,"endHours":24.255010590111407,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:15","end":"01:15","startHours":24.255010590111407,"endHours":25.255010590111407,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:15","end":"02:15","startHours":25.255010590111407,"endHours":26.255010590111407,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:15","end":"03:15","startHours":26.255010590111407,"endHours":27.255010590111407,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:15","end":"04:15","startHours":27.255010590111407,"endHours":28.255010590111407,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:15","end":"05:15","startHours":28.255010590111407,"endHours":29.255010590111407,"planetary_lord":"Jupiter"}],"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":"West (Paścim)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":18.15687041456577,"eotMinutes":3.7534387435564067,"ayanamsa":21.2039}},"calendars":{"vikram_samvat":1867,"vikram_samvatsara":"Subhānu","saka_samvat":1732,"saka_samvatsara":"Pramoda","bengali_samvat":1217,"malayalam_era":986,"nanakshahi_year":341,"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 Navamī · Vikram 1867 Subhānu · Śaka 1732 Pramoda"},"festivals":[{"id":"sita-navami","name":"Sītā Navamī","name_sanskrit":"सीता नवमी","tradition":"Vaishnava","associated_deity":"Sītā Devī (Lakṣmī as Bhū-suta)","significance":"Devī Sītā's manifestation in Mithilā; rāmāvatāra-kalatra.","vrata":true,"detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":2,"sources":["Vālmīki Rāmāyaṇa, Bāla-Kāṇḍa 66"]},{"id":"madhva-jayanti","name":"Madhvācārya Jayantī","name_sanskrit":"मध्वाचार्य जयन्ती","tradition":"Vaishnava","associated_deity":"Madhvācārya (Dvaita)","significance":"Birth of Madhvācārya; Dvaita-pratiṣṭhāpaka. Vaiśākha Śukla 9.","vrata":false,"detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":4}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 13, 1810 CE · Ayodhyā · Vidhyamitra","description":"May 13, 1810 CE for Ayodhyā: Śukla Navamī, sūryodaya 05:15, sūryāsta 18:40.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1810-05-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1810-05-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/1810-05-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/1810-05-13","x-default":"https://vidhyamitra.com/city/ayodhya/1810-05-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T02:20:06.350Z","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":"2026-05-31T02:20:06.350Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T02:20:06.350Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}