{"id":"vidhyamitra:city-day:ayodhya:1712-09-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1712-09-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1712-09-13","date_display":"September 13, 1712 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":1712,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2346610.770833,"kali_year":4814,"ahargana":1758145.2708,"sun":{"sidereal_longitude":150.3752,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":305.5544,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":155.1793,"elapsed_within_tithi_degrees":11.1793},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":305.5544,"elapsed_within_degrees":12.2211},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":95.9296},"karana":{"half_tithi_index":25,"name":"Taitila"},"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":1712,"month":9,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2346610.770833,"ahargana":1758145.2708,"kali_year":4814,"ayanamsa_lahiri":19.8397,"grahas":{"sun":{"sidereal_longitude":150.41296899999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":303.65096900000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false,"latitude":2.9239},"mars":{"sidereal_longitude":104.82196899999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":180.85586899999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":281.62826900000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":true},"venus":{"sidereal_longitude":158.46486900000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":125.49716899999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":265.0028,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":85.0028,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":1712,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2346610.770833,"kali_year":4814,"ahargana":1758145.2708,"sun":{"sidereal_longitude":150.3752,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":305.5544,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":155.1793,"elapsed_within_tithi_degrees":11.1793},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":305.5544,"elapsed_within_degrees":12.2211},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":95.9296},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.924,"elongation":155.179},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.924,"opposition_distance":24.821}},"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":12.38530592656433,"dayLengthDisplay":"12 Hours 23 Mins 07 Secs","nightLengthDisplay":"11 Hours 36 Mins 53 Secs","moonriseLocal":"16:35","moonsetLocal":"03:44","rahuKala":{"name":"Rāhu Kāla","start":"15:02","end":"16:35","startHours":15.036828632809982,"endHours":16.58499187363052,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:51","end":"10:24","startHours":8.844175669527816,"endHours":10.392338910348357,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:56","end":"13:29","startHours":11.9405021511689,"endHours":13.48866539198944,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:03","startHours":8.637753904085077,"endHours":9.050597434970555,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:36","startHours":6.263903601493581,"endHours":6.594178426201963,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:32","end":"12:21","startHours":11.527658620283422,"endHours":12.353345682054378,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:06","end":"04:55","startHours":4.096475064344824,"endHours":4.922162126115779,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:43","end":"05:45","startHours":4.71574036067304,"endHours":5.747849187886734,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:00","end":"14:50","startHours":14.004719805596286,"endHours":14.830406867367241,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:56","end":"18:20","startHours":17.933155114451065,"endHours":18.333155114451063,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:08","end":"18:39","startHours":18.133155114451064,"endHours":18.64920952805791,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:53","end":"19:38","startHours":17.883155114451064,"endHours":19.633155114451064,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:32","end":"00:21","startHours":23.52765862028342,"endHours":24.35334568205438,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:45","end":"07:18","startHours":5.747849187886734,"endHours":7.296012428707275,"quality":"inauspicious"},{"name":"Udveg","start":"07:18","end":"08:51","startHours":7.296012428707275,"endHours":8.844175669527816,"quality":"inauspicious"},{"name":"Chala","start":"08:51","end":"10:24","startHours":8.844175669527816,"endHours":10.392338910348357,"quality":"neutral"},{"name":"Labha","start":"10:24","end":"11:56","startHours":10.392338910348357,"endHours":11.9405021511689,"quality":"auspicious"},{"name":"Amṛta","start":"11:56","end":"13:29","startHours":11.9405021511689,"endHours":13.48866539198944,"quality":"auspicious"},{"name":"Kāla","start":"13:29","end":"15:02","startHours":13.48866539198944,"endHours":15.036828632809982,"quality":"inauspicious"},{"name":"Śubha","start":"15:02","end":"16:35","startHours":15.036828632809982,"endHours":16.58499187363052,"quality":"auspicious"},{"name":"Roga","start":"16:35","end":"18:08","startHours":16.58499187363052,"endHours":18.133155114451064,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:08","end":"19:35","startHours":18.133155114451064,"endHours":19.58499187363052,"quality":"inauspicious"},{"name":"Śubha","start":"19:35","end":"21:02","startHours":19.58499187363052,"endHours":21.036828632809982,"quality":"auspicious"},{"name":"Roga","start":"21:02","end":"22:29","startHours":21.036828632809982,"endHours":22.48866539198944,"quality":"inauspicious"},{"name":"Udveg","start":"22:29","end":"23:56","startHours":22.48866539198944,"endHours":23.9405021511689,"quality":"inauspicious"},{"name":"Chala","start":"23:56","end":"01:24","startHours":23.9405021511689,"endHours":25.392338910348357,"quality":"neutral"},{"name":"Labha","start":"01:24","end":"02:51","startHours":25.392338910348357,"endHours":26.844175669527814,"quality":"auspicious"},{"name":"Amṛta","start":"02:51","end":"04:18","startHours":26.844175669527814,"endHours":28.296012428707275,"quality":"auspicious"},{"name":"Kāla","start":"04:18","end":"05:45","startHours":28.296012428707275,"endHours":29.747849187886736,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:45","end":"06:45","startHours":5.747849187886734,"endHours":6.747849187886734,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:45","end":"07:45","startHours":6.747849187886734,"endHours":7.747849187886734,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:45","end":"08:45","startHours":7.747849187886734,"endHours":8.747849187886734,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:45","end":"09:45","startHours":8.747849187886734,"endHours":9.747849187886734,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:45","end":"10:45","startHours":9.747849187886734,"endHours":10.747849187886734,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:45","end":"11:45","startHours":10.747849187886734,"endHours":11.747849187886734,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:45","end":"12:45","startHours":11.747849187886734,"endHours":12.747849187886734,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:45","end":"13:45","startHours":12.747849187886734,"endHours":13.747849187886734,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:45","end":"14:45","startHours":13.747849187886734,"endHours":14.747849187886734,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:45","end":"15:45","startHours":14.747849187886734,"endHours":15.747849187886734,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:45","end":"16:45","startHours":15.747849187886734,"endHours":16.747849187886736,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:45","end":"17:45","startHours":16.747849187886736,"endHours":17.747849187886736,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:45","end":"18:45","startHours":17.747849187886736,"endHours":18.747849187886736,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:45","end":"19:45","startHours":18.747849187886736,"endHours":19.747849187886736,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:45","end":"20:45","startHours":19.747849187886736,"endHours":20.747849187886736,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:45","end":"21:45","startHours":20.747849187886736,"endHours":21.747849187886736,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:45","end":"22:45","startHours":21.747849187886736,"endHours":22.747849187886736,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:45","end":"23:45","startHours":22.747849187886736,"endHours":23.747849187886736,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:45","end":"00:45","startHours":23.747849187886736,"endHours":24.747849187886736,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:45","end":"01:45","startHours":24.747849187886736,"endHours":25.747849187886736,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:45","end":"02:45","startHours":25.747849187886736,"endHours":26.747849187886736,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:45","end":"03:45","startHours":26.747849187886736,"endHours":27.747849187886736,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:45","end":"04:45","startHours":27.747849187886736,"endHours":28.747849187886736,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:45","end":"05:45","startHours":28.747849187886736,"endHours":29.747849187886736,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":3.861078224675738,"eotMinutes":4.753870929866006,"ayanamsa":19.8397}},"calendars":{"vikram_samvat":1769,"vikram_samvatsara":"Viśvāvasu","saka_samvat":1634,"saka_samvatsara":"Nandana","bengali_samvat":1119,"malayalam_era":888,"nanakshahi_year":243,"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":"Kanyā (Puraṭṭāsi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Trayodaśī · Vikram 1769 Viśvāvasu · Śaka 1634 Nandana"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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, 1712 CE · Ayodhyā · Vidhyamitra","description":"September 13, 1712 CE for Ayodhyā: Śukla Trayodaśī, sūryodaya 05:45, sūryāsta 18:08.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1712-09-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1712-09-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/1712-09-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/1712-09-13","x-default":"https://vidhyamitra.com/city/ayodhya/1712-09-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T23:10:24.554Z","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":"2026-06-01T23:10:24.554Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T23:10:24.554Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}