{"id":"vidhyamitra:city-day:ayodhya:1966-09-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1966-09-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1966-09-13","date_display":"September 13, 1966 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":1966,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2439381.770833,"kali_year":5068,"ahargana":1850916.2708,"sun":{"sidereal_longitude":145.7806,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":121.8848,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":336.1041,"elapsed_within_tithi_degrees":0.1041},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":121.8848,"elapsed_within_degrees":1.8848},"yoga":{"number":21,"name":"Siddha","sum_longitude":267.6654},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1966,"month":9,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2439381.770833,"ahargana":1850916.2708,"kali_year":5068,"ayanamsa_lahiri":23.3878,"grahas":{"sun":{"sidereal_longitude":146.422435,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":121.21313499999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false,"latitude":4.4963},"mars":{"sidereal_longitude":108.77093500000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":149.28693499999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":94.79953499999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"venus":{"sidereal_longitude":132.12823500000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":334.0650350000001,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":29.5487,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":209.5487,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":1966,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2439381.770833,"kali_year":5068,"ahargana":1850916.2708,"sun":{"sidereal_longitude":145.7806,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":121.8848,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":336.1041,"elapsed_within_tithi_degrees":0.1041},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":121.8848,"elapsed_within_degrees":1.8848},"yoga":{"number":21,"name":"Siddha","sum_longitude":267.6654},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.496,"elongation":23.896},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.496,"opposition_distance":156.104}},"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":"05:45","sunsetLocal":"18:08","solarNoonLocal":"11:56","dayLengthHours":12.39710340300087,"dayLengthDisplay":"12 Hours 23 Mins 50 Secs","nightLengthDisplay":"11 Hours 36 Mins 10 Secs","moonriseLocal":"03:45","moonsetLocal":"16:46","rahuKala":{"name":"Rāhu Kāla","start":"15:02","end":"16:35","startHours":15.039778001919117,"endHours":16.589415927294226,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:50","end":"10:23","startHours":8.841226300418683,"endHours":10.390864225793791,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:56","end":"13:29","startHours":11.9405021511689,"endHours":13.490140076544009,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:03","startHours":8.634607910368668,"endHours":9.047844690468699,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:35","startHours":6.258496424793503,"endHours":6.589085848873526,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:32","end":"12:21","startHours":11.527265371068872,"endHours":12.353738931268929,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:05","end":"04:55","startHours":4.08900332926835,"endHours":4.915476889468408,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:43","end":"05:45","startHours":4.708858499418394,"endHours":5.741950449668466,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:00","end":"14:50","startHours":14.006686051669046,"endHours":14.833159611869105,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:56","end":"18:20","startHours":17.939053852669335,"endHours":18.339053852669334,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:08","end":"18:39","startHours":18.139053852669335,"endHours":18.655599827794372,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:53","end":"19:38","startHours":17.889053852669335,"endHours":19.639053852669335,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:32","end":"00:21","startHours":23.52726537106887,"endHours":24.35373893126893,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:45","end":"07:17","startHours":5.741950449668466,"endHours":7.291588375043575,"quality":"inauspicious"},{"name":"Udveg","start":"07:17","end":"08:50","startHours":7.291588375043575,"endHours":8.841226300418683,"quality":"inauspicious"},{"name":"Chala","start":"08:50","end":"10:23","startHours":8.841226300418683,"endHours":10.390864225793791,"quality":"neutral"},{"name":"Labha","start":"10:23","end":"11:56","startHours":10.390864225793791,"endHours":11.9405021511689,"quality":"auspicious"},{"name":"Amṛta","start":"11:56","end":"13:29","startHours":11.9405021511689,"endHours":13.490140076544009,"quality":"auspicious"},{"name":"Kāla","start":"13:29","end":"15:02","startHours":13.490140076544009,"endHours":15.039778001919117,"quality":"inauspicious"},{"name":"Śubha","start":"15:02","end":"16:35","startHours":15.039778001919117,"endHours":16.589415927294226,"quality":"auspicious"},{"name":"Roga","start":"16:35","end":"18:08","startHours":16.589415927294226,"endHours":18.139053852669335,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:08","end":"19:35","startHours":18.139053852669335,"endHours":19.589415927294226,"quality":"inauspicious"},{"name":"Śubha","start":"19:35","end":"21:02","startHours":19.589415927294226,"endHours":21.039778001919117,"quality":"auspicious"},{"name":"Roga","start":"21:02","end":"22:29","startHours":21.039778001919117,"endHours":22.49014007654401,"quality":"inauspicious"},{"name":"Udveg","start":"22:29","end":"23:56","startHours":22.49014007654401,"endHours":23.9405021511689,"quality":"inauspicious"},{"name":"Chala","start":"23:56","end":"01:23","startHours":23.9405021511689,"endHours":25.39086422579379,"quality":"neutral"},{"name":"Labha","start":"01:23","end":"02:50","startHours":25.39086422579379,"endHours":26.841226300418683,"quality":"auspicious"},{"name":"Amṛta","start":"02:50","end":"04:17","startHours":26.841226300418683,"endHours":28.291588375043574,"quality":"auspicious"},{"name":"Kāla","start":"04:17","end":"05:45","startHours":28.291588375043574,"endHours":29.741950449668465,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:45","end":"06:45","startHours":5.741950449668466,"endHours":6.741950449668466,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:45","end":"07:45","startHours":6.741950449668466,"endHours":7.741950449668466,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:45","end":"08:45","startHours":7.741950449668466,"endHours":8.741950449668465,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:45","end":"09:45","startHours":8.741950449668465,"endHours":9.741950449668465,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:45","end":"10:45","startHours":9.741950449668465,"endHours":10.741950449668465,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:45","end":"11:45","startHours":10.741950449668465,"endHours":11.741950449668465,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:45","end":"12:45","startHours":11.741950449668465,"endHours":12.741950449668465,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:45","end":"13:45","startHours":12.741950449668465,"endHours":13.741950449668465,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:45","end":"14:45","startHours":13.741950449668465,"endHours":14.741950449668465,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:45","end":"15:45","startHours":14.741950449668465,"endHours":15.741950449668465,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:45","end":"16:45","startHours":15.741950449668465,"endHours":16.741950449668465,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:45","end":"17:45","startHours":16.741950449668465,"endHours":17.741950449668465,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:45","end":"18:45","startHours":17.741950449668465,"endHours":18.741950449668465,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:45","end":"19:45","startHours":18.741950449668465,"endHours":19.741950449668465,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:45","end":"20:45","startHours":19.741950449668465,"endHours":20.741950449668465,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:45","end":"21:45","startHours":20.741950449668465,"endHours":21.741950449668465,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:45","end":"22:45","startHours":21.741950449668465,"endHours":22.741950449668465,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:45","end":"23:45","startHours":22.741950449668465,"endHours":23.741950449668465,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:45","end":"00:45","startHours":23.741950449668465,"endHours":24.741950449668465,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:45","end":"01:45","startHours":24.741950449668465,"endHours":25.741950449668465,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:45","end":"02:45","startHours":25.741950449668465,"endHours":26.741950449668465,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:45","end":"03:45","startHours":26.741950449668465,"endHours":27.741950449668465,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:45","end":"04:45","startHours":27.741950449668465,"endHours":28.741950449668465,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:45","end":"05:45","startHours":28.741950449668465,"endHours":29.741950449668465,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","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":"North (Uttara)","chandraVasa":"West","rahuVasa":"North","anandadiYoga":{"name":"Kāṇa","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":4.0348038343319885,"eotMinutes":4.753870929866006,"ayanamsa":23.3878}},"calendars":{"vikram_samvat":2023,"vikram_samvatsara":"Siddhārthī","saka_samvat":1888,"saka_samvatsara":"Parābhava","bengali_samvat":1373,"malayalam_era":1142,"nanakshahi_year":497,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","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 Kṛṣṇa Caturdaśī · Vikram 2023 Siddhārthī · Śaka 1888 Parābhava"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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, 1966 CE · Ayodhyā · Vidhyamitra","description":"September 13, 1966 CE for Ayodhyā: Kṛṣṇa Caturdaśī, sūryodaya 05:45, sūryāsta 18:08.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1966-09-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1966-09-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/1966-09-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/1966-09-13","x-default":"https://vidhyamitra.com/city/ayodhya/1966-09-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T06:07:07.218Z","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":"2026-05-31T06:07:07.218Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T06:07:07.218Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}