{"id":"vidhyamitra:city-day:ayodhya:2317-09-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2317-09-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2317-09-13","date_display":"September 13, 2317 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":2317,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2567581.770833,"kali_year":5419,"ahargana":1979116.2708,"sun":{"sidereal_longitude":140.136,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":213.7475,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":73.6115,"elapsed_within_tithi_degrees":1.6115},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":213.7475,"elapsed_within_degrees":0.4142},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":353.8835},"karana":{"half_tithi_index":12,"name":"Gara"},"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":2317,"month":9,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2567581.770833,"ahargana":1979116.2708,"kali_year":5419,"ayanamsa_lahiri":28.291,"grahas":{"sun":{"sidereal_longitude":141.618653,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":211.92335300000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false,"latitude":3.0758},"mars":{"sidereal_longitude":248.377653,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":163.71435300000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":274.97345299999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":172.671653,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":297.904053,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":76.8958,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":256.8958,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2317,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2567581.770833,"kali_year":5419,"ahargana":1979116.2708,"sun":{"sidereal_longitude":140.136,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":213.7475,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":73.6115,"elapsed_within_tithi_degrees":1.6115},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":213.7475,"elapsed_within_degrees":0.4142},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":353.8835},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.076,"elongation":73.611},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.076,"opposition_distance":106.389}},"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":12.394452999188893,"dayLengthDisplay":"12 Hours 23 Mins 40 Secs","nightLengthDisplay":"11 Hours 36 Mins 20 Secs","moonriseLocal":"11:18","moonsetLocal":"21:58","rahuKala":{"name":"Rāhu Kāla","start":"13:29","end":"15:02","startHours":13.489808776067512,"endHours":15.039115400966123,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:45","end":"07:18","startHours":5.743275651574454,"endHours":7.292582276473065,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:51","end":"10:23","startHours":8.841888901371677,"endHours":10.391195526270288,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:03","startHours":8.635314684718528,"endHours":9.048463118024825,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:35","startHours":6.259711193207324,"endHours":6.590229939852361,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:32","end":"12:21","startHours":11.527353717862603,"endHours":12.353650584475197,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:05","end":"04:55","startHours":4.090681918349268,"endHours":4.916978784961861,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:43","end":"05:45","startHours":4.710404568308713,"endHours":5.743275651574454,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:00","end":"14:50","startHours":14.006244317700382,"endHours":14.832541184312975,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:56","end":"18:20","startHours":17.937728650763347,"endHours":18.337728650763346,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:08","end":"18:39","startHours":18.137728650763346,"endHours":18.654164192396216,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:53","end":"19:38","startHours":17.887728650763346,"endHours":19.637728650763346,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:32","end":"00:21","startHours":23.527353717862603,"endHours":24.353650584475197,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:45","end":"07:18","startHours":5.743275651574454,"endHours":7.292582276473065,"quality":"auspicious"},{"name":"Roga","start":"07:18","end":"08:51","startHours":7.292582276473065,"endHours":8.841888901371677,"quality":"inauspicious"},{"name":"Udveg","start":"08:51","end":"10:23","startHours":8.841888901371677,"endHours":10.391195526270288,"quality":"inauspicious"},{"name":"Chala","start":"10:23","end":"11:56","startHours":10.391195526270288,"endHours":11.9405021511689,"quality":"neutral"},{"name":"Labha","start":"11:56","end":"13:29","startHours":11.9405021511689,"endHours":13.489808776067512,"quality":"auspicious"},{"name":"Amṛta","start":"13:29","end":"15:02","startHours":13.489808776067512,"endHours":15.039115400966123,"quality":"auspicious"},{"name":"Kāla","start":"15:02","end":"16:35","startHours":15.039115400966123,"endHours":16.588422025864734,"quality":"inauspicious"},{"name":"Śubha","start":"16:35","end":"18:08","startHours":16.588422025864734,"endHours":18.137728650763346,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:08","end":"19:35","startHours":18.137728650763346,"endHours":19.588422025864734,"quality":"auspicious"},{"name":"Kāla","start":"19:35","end":"21:02","startHours":19.588422025864734,"endHours":21.039115400966125,"quality":"inauspicious"},{"name":"Śubha","start":"21:02","end":"22:29","startHours":21.039115400966125,"endHours":22.489808776067512,"quality":"auspicious"},{"name":"Roga","start":"22:29","end":"23:56","startHours":22.489808776067512,"endHours":23.9405021511689,"quality":"inauspicious"},{"name":"Udveg","start":"23:56","end":"01:23","startHours":23.9405021511689,"endHours":25.391195526270288,"quality":"inauspicious"},{"name":"Chala","start":"01:23","end":"02:51","startHours":25.391195526270288,"endHours":26.841888901371675,"quality":"neutral"},{"name":"Labha","start":"02:51","end":"04:18","startHours":26.841888901371675,"endHours":28.292582276473066,"quality":"auspicious"},{"name":"Amṛta","start":"04:18","end":"05:45","startHours":28.292582276473066,"endHours":29.743275651574454,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:45","end":"06:45","startHours":5.743275651574454,"endHours":6.743275651574454,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:45","end":"07:45","startHours":6.743275651574454,"endHours":7.743275651574454,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:45","end":"08:45","startHours":7.743275651574454,"endHours":8.743275651574454,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:45","end":"09:45","startHours":8.743275651574454,"endHours":9.743275651574454,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:45","end":"10:45","startHours":9.743275651574454,"endHours":10.743275651574454,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:45","end":"11:45","startHours":10.743275651574454,"endHours":11.743275651574454,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:45","end":"12:45","startHours":11.743275651574454,"endHours":12.743275651574454,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:45","end":"13:45","startHours":12.743275651574454,"endHours":13.743275651574454,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:45","end":"14:45","startHours":13.743275651574454,"endHours":14.743275651574454,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:45","end":"15:45","startHours":14.743275651574454,"endHours":15.743275651574454,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:45","end":"16:45","startHours":15.743275651574454,"endHours":16.743275651574454,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:45","end":"17:45","startHours":16.743275651574454,"endHours":17.743275651574454,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:45","end":"18:45","startHours":17.743275651574454,"endHours":18.743275651574454,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:45","end":"19:45","startHours":18.743275651574454,"endHours":19.743275651574454,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:45","end":"20:45","startHours":19.743275651574454,"endHours":20.743275651574454,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:45","end":"21:45","startHours":20.743275651574454,"endHours":21.743275651574454,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:45","end":"22:45","startHours":21.743275651574454,"endHours":22.743275651574454,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:45","end":"23:45","startHours":22.743275651574454,"endHours":23.743275651574454,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:45","end":"00:45","startHours":23.743275651574454,"endHours":24.743275651574454,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:45","end":"01:45","startHours":24.743275651574454,"endHours":25.743275651574454,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:45","end":"02:45","startHours":25.743275651574454,"endHours":26.743275651574454,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:45","end":"03:45","startHours":26.743275651574454,"endHours":27.743275651574454,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:45","end":"04:45","startHours":27.743275651574454,"endHours":28.743275651574454,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:45","end":"05:45","startHours":28.743275651574454,"endHours":29.743275651574454,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North-East","rahuVasa":"North-West","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":3.9957839231394114,"eotMinutes":4.753870929866006,"ayanamsa":28.291}},"calendars":{"vikram_samvat":2374,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":2239,"saka_samvatsara":"Hemalambī","bengali_samvat":1724,"malayalam_era":1493,"nanakshahi_year":848,"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 Saptamī · Vikram 2374 Sādhāraṇa · Śaka 2239 Hemalambī"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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, 2317 CE · Ayodhyā · Vidhyamitra","description":"September 13, 2317 CE for Ayodhyā: Śukla Saptamī, sūryodaya 05:45, sūryāsta 18:08.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2317-09-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2317-09-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/2317-09-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/2317-09-13","x-default":"https://vidhyamitra.com/city/ayodhya/2317-09-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T13:12:16.876Z","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":"2026-06-03T13:12:16.876Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T13:12:16.876Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}