{"id":"vidhyamitra:city-day:ayodhya:1807-09-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1807-09-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1807-09-13","date_display":"September 13, 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":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2381307.770833,"kali_year":4909,"ahargana":1792842.2708,"sun":{"sidereal_longitude":147.8624,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":283.8838,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":136.0214,"elapsed_within_tithi_degrees":4.0214},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":283.8838,"elapsed_within_degrees":3.8838},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":71.7461},"karana":{"half_tithi_index":22,"name":"Bava"},"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":1807,"month":9,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2381307.770833,"ahargana":1792842.2708,"kali_year":4909,"ayanamsa_lahiri":21.1667,"grahas":{"sun":{"sidereal_longitude":148.12448899999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":285.816589,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false,"latitude":3.7854},"mars":{"sidereal_longitude":204.164489,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":136.83788900000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":284.587589,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"venus":{"sidereal_longitude":188.394589,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":197.78518899999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":226.5887,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":46.5887,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":1807,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2381307.770833,"kali_year":4909,"ahargana":1792842.2708,"sun":{"sidereal_longitude":147.8624,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":283.8838,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":136.0214,"elapsed_within_tithi_degrees":4.0214},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":283.8838,"elapsed_within_degrees":3.8838},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":71.7461},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.785,"elongation":136.021},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.785,"opposition_distance":43.979}},"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":"05:44","sunsetLocal":"18:09","solarNoonLocal":"11:56","dayLengthHours":12.410935148910596,"dayLengthDisplay":"12 Hours 24 Mins 39 Secs","nightLengthDisplay":"11 Hours 35 Mins 21 Secs","moonriseLocal":"15:43","moonsetLocal":"02:31","rahuKala":{"name":"Rāhu Kāla","start":"16:36","end":"18:09","startHours":16.594602832010374,"endHours":18.145969725624198,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:56","end":"13:30","startHours":11.9405021511689,"endHours":13.491869044782725,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:03","end":"16:36","startHours":15.043235938396549,"endHours":16.594602832010374,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:03","startHours":8.630919444792742,"endHours":9.04461728308976,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:15","end":"06:35","startHours":6.252156874584877,"endHours":6.583115145222493,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:32","end":"12:21","startHours":11.52680431287188,"endHours":12.35419998946592,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:05","end":"04:54","startHours":4.080243223525523,"endHours":4.907638900119562,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:42","end":"05:44","startHours":4.700789980971052,"endHours":5.735034576713602,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:50","startHours":14.008991342654,"endHours":14.83638701924804,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.9459697256242,"endHours":18.345969725624197,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:40","startHours":18.145969725624198,"endHours":18.663092023495473,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.895969725624198,"endHours":19.645969725624198,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:32","end":"00:21","startHours":23.52680431287188,"endHours":24.35419998946592,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:44","end":"07:17","startHours":5.735034576713602,"endHours":7.2864014703274265,"quality":"inauspicious"},{"name":"Chala","start":"07:17","end":"08:50","startHours":7.2864014703274265,"endHours":8.837768363941251,"quality":"neutral"},{"name":"Labha","start":"08:50","end":"10:23","startHours":8.837768363941251,"endHours":10.389135257555075,"quality":"auspicious"},{"name":"Amṛta","start":"10:23","end":"11:56","startHours":10.389135257555075,"endHours":11.9405021511689,"quality":"auspicious"},{"name":"Kāla","start":"11:56","end":"13:30","startHours":11.9405021511689,"endHours":13.491869044782725,"quality":"inauspicious"},{"name":"Śubha","start":"13:30","end":"15:03","startHours":13.491869044782725,"endHours":15.043235938396549,"quality":"auspicious"},{"name":"Roga","start":"15:03","end":"16:36","startHours":15.043235938396549,"endHours":16.594602832010374,"quality":"inauspicious"},{"name":"Udveg","start":"16:36","end":"18:09","startHours":16.594602832010374,"endHours":18.145969725624198,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:09","end":"19:36","startHours":18.145969725624198,"endHours":19.594602832010374,"quality":"auspicious"},{"name":"Roga","start":"19:36","end":"21:03","startHours":19.594602832010374,"endHours":21.04323593839655,"quality":"inauspicious"},{"name":"Udveg","start":"21:03","end":"22:30","startHours":21.04323593839655,"endHours":22.491869044782725,"quality":"inauspicious"},{"name":"Chala","start":"22:30","end":"23:56","startHours":22.491869044782725,"endHours":23.9405021511689,"quality":"neutral"},{"name":"Labha","start":"23:56","end":"01:23","startHours":23.9405021511689,"endHours":25.389135257555075,"quality":"auspicious"},{"name":"Amṛta","start":"01:23","end":"02:50","startHours":25.389135257555075,"endHours":26.83776836394125,"quality":"auspicious"},{"name":"Kāla","start":"02:50","end":"04:17","startHours":26.83776836394125,"endHours":28.286401470327426,"quality":"inauspicious"},{"name":"Śubha","start":"04:17","end":"05:44","startHours":28.286401470327426,"endHours":29.735034576713602,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:44","end":"06:44","startHours":5.735034576713602,"endHours":6.735034576713602,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:44","end":"07:44","startHours":6.735034576713602,"endHours":7.735034576713602,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:44","end":"08:44","startHours":7.735034576713602,"endHours":8.735034576713602,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:44","end":"09:44","startHours":8.735034576713602,"endHours":9.735034576713602,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:44","end":"10:44","startHours":9.735034576713602,"endHours":10.735034576713602,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:44","end":"11:44","startHours":10.735034576713602,"endHours":11.735034576713602,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:44","end":"12:44","startHours":11.735034576713602,"endHours":12.735034576713602,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:44","end":"13:44","startHours":12.735034576713602,"endHours":13.735034576713602,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:44","end":"14:44","startHours":13.735034576713602,"endHours":14.735034576713602,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:44","end":"15:44","startHours":14.735034576713602,"endHours":15.735034576713602,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:44","end":"16:44","startHours":15.735034576713602,"endHours":16.735034576713602,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:44","end":"17:44","startHours":16.735034576713602,"endHours":17.735034576713602,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:44","end":"18:44","startHours":17.735034576713602,"endHours":18.735034576713602,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:44","end":"19:44","startHours":18.735034576713602,"endHours":19.735034576713602,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:44","end":"20:44","startHours":19.735034576713602,"endHours":20.735034576713602,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:44","end":"21:44","startHours":20.735034576713602,"endHours":21.735034576713602,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:44","end":"22:44","startHours":21.735034576713602,"endHours":22.735034576713602,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:44","end":"23:44","startHours":22.735034576713602,"endHours":23.735034576713602,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:44","end":"00:44","startHours":23.735034576713602,"endHours":24.735034576713602,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:44","end":"01:44","startHours":24.735034576713602,"endHours":25.735034576713602,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:44","end":"02:44","startHours":25.735034576713602,"endHours":26.735034576713602,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:44","end":"03:44","startHours":26.735034576713602,"endHours":27.735034576713602,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:44","end":"04:44","startHours":27.735034576713602,"endHours":28.735034576713602,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:44","end":"05:44","startHours":28.735034576713602,"endHours":29.735034576713602,"planetary_lord":"Jupiter"}],"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":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":4.238351281525365,"eotMinutes":4.753870929866006,"ayanamsa":21.1667}},"calendars":{"vikram_samvat":1864,"vikram_samvatsara":"Vikrama","saka_samvat":1729,"saka_samvatsara":"Prabhava","bengali_samvat":1214,"malayalam_era":983,"nanakshahi_year":338,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Dvādaśī · Vikram 1864 Vikrama · Śaka 1729 Prabhava"},"festivals":[{"id":"vamana-jayanti","name":"Vāmana Jayantī","name_sanskrit":"वामन जयन्ती","tradition":"Vaishnava","associated_deity":"Vāmana (5th daśāvatāra of Krishna)","deity_avatara_index":15,"significance":"Vāmana's three-step measure of all worlds; Bali's surrender. (= Onam in Kerala.)","vrata":true,"detection":{"tithi_number":12,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":2,"sources":["Bhāgavata 8.18-22"]},{"id":"onam","name":"Onam (Vāmana / King Bali)","name_sanskrit":"ओणम् (वामन-बलि स्मरण)","tradition":"Regional","associated_deity":"Vāmana + King Bali","significance":"Kerala festival; King Bali's annual return to Kerala. Aligned with Thiru-Onam (Śravaṇa nakshatra in Bhādrapada).","vrata":false,"detection":{"nakshatra_name":"Śravaṇa","lunar_month":"Bhādrapada"},"precedence":2}],"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":[]},"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 September 13, 1807 CE · Ayodhyā · Vidhyamitra","description":"September 13, 1807 CE for Ayodhyā: Śukla Dvādaśī, sūryodaya 05:44, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1807-09-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1807-09-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/1807-09-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/1807-09-13","x-default":"https://vidhyamitra.com/city/ayodhya/1807-09-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T01:34:37.854Z","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":"2026-05-31T01:34:37.854Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T01:34:37.854Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}