{"id":"vidhyamitra:city-day:ayodhya:1915-09-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1915-09-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1915-09-13","date_display":"September 13, 1915 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":1915,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2420753.770833,"kali_year":5017,"ahargana":1832288.2708,"sun":{"sidereal_longitude":145.9715,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":191.4353,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":45.4638,"elapsed_within_tithi_degrees":9.4638},"nakshatra":{"number":15,"name":"Svātī","pada":2,"moon_longitude":191.4353,"elapsed_within_degrees":4.7686},"yoga":{"number":26,"name":"Indra","sum_longitude":337.4068},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1915,"month":9,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2420753.770833,"ahargana":1832288.2708,"kali_year":5017,"ayanamsa_lahiri":22.6754,"grahas":{"sun":{"sidereal_longitude":146.49046199999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":193.14696200000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false,"latitude":-4.344},"mars":{"sidereal_longitude":84.04306199999996,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":169.84376199999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":332.1120619999999,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":147.77826199999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":82.531362,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":296.5498,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":116.5498,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":1915,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2420753.770833,"kali_year":5017,"ahargana":1832288.2708,"sun":{"sidereal_longitude":145.9715,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":191.4353,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":45.4638,"elapsed_within_tithi_degrees":9.4638},"nakshatra":{"number":15,"name":"Svātī","pada":2,"moon_longitude":191.4353,"elapsed_within_degrees":4.7686},"yoga":{"number":26,"name":"Indra","sum_longitude":337.4068},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.344,"elongation":45.464},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.344,"opposition_distance":134.536}},"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":12.414273459676537,"dayLengthDisplay":"12 Hours 24 Mins 51 Secs","nightLengthDisplay":"11 Hours 35 Mins 09 Secs","moonriseLocal":"09:28","moonsetLocal":"20:38","rahuKala":{"name":"Rāhu Kāla","start":"07:17","end":"08:50","startHours":7.2851496037902,"endHours":8.836933786249766,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:23","end":"11:56","startHours":10.388717968709333,"endHours":11.9405021511689,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:30","end":"15:03","startHours":13.492286333628467,"endHours":15.044070516088034,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:03","startHours":8.63002922858849,"endHours":9.043838343911043,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:15","end":"06:35","startHours":6.250626815483821,"endHours":6.581674107741862,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:32","end":"12:21","startHours":11.526693035846348,"endHours":12.354311266491452,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:05","end":"04:54","startHours":4.078128960040428,"endHours":4.90574719068553,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:42","end":"05:44","startHours":4.698842633024254,"endHours":5.733365421330633,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:50","startHours":14.009547727781658,"endHours":14.83716595842676,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.94763888100717,"endHours":18.347638881007168,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:40","startHours":18.14763888100717,"endHours":18.664900275160356,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.89763888100717,"endHours":19.64763888100717,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:32","end":"00:21","startHours":23.52669303584635,"endHours":24.35431126649145,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:44","end":"07:17","startHours":5.733365421330633,"endHours":7.2851496037902,"quality":"auspicious"},{"name":"Kāla","start":"07:17","end":"08:50","startHours":7.2851496037902,"endHours":8.836933786249766,"quality":"inauspicious"},{"name":"Śubha","start":"08:50","end":"10:23","startHours":8.836933786249766,"endHours":10.388717968709333,"quality":"auspicious"},{"name":"Roga","start":"10:23","end":"11:56","startHours":10.388717968709333,"endHours":11.9405021511689,"quality":"inauspicious"},{"name":"Udveg","start":"11:56","end":"13:30","startHours":11.9405021511689,"endHours":13.492286333628467,"quality":"inauspicious"},{"name":"Chala","start":"13:30","end":"15:03","startHours":13.492286333628467,"endHours":15.044070516088034,"quality":"neutral"},{"name":"Labha","start":"15:03","end":"16:36","startHours":15.044070516088034,"endHours":16.5958546985476,"quality":"auspicious"},{"name":"Amṛta","start":"16:36","end":"18:09","startHours":16.5958546985476,"endHours":18.14763888100717,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:09","end":"19:36","startHours":18.14763888100717,"endHours":19.5958546985476,"quality":"neutral"},{"name":"Labha","start":"19:36","end":"21:03","startHours":19.5958546985476,"endHours":21.044070516088034,"quality":"auspicious"},{"name":"Amṛta","start":"21:03","end":"22:30","startHours":21.044070516088034,"endHours":22.492286333628467,"quality":"auspicious"},{"name":"Kāla","start":"22:30","end":"23:56","startHours":22.492286333628467,"endHours":23.9405021511689,"quality":"inauspicious"},{"name":"Śubha","start":"23:56","end":"01:23","startHours":23.9405021511689,"endHours":25.388717968709333,"quality":"auspicious"},{"name":"Roga","start":"01:23","end":"02:50","startHours":25.388717968709333,"endHours":26.836933786249766,"quality":"inauspicious"},{"name":"Udveg","start":"02:50","end":"04:17","startHours":26.836933786249766,"endHours":28.2851496037902,"quality":"inauspicious"},{"name":"Chala","start":"04:17","end":"05:44","startHours":28.2851496037902,"endHours":29.73336542133063,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:44","end":"06:44","startHours":5.733365421330633,"endHours":6.733365421330633,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:44","end":"07:44","startHours":6.733365421330633,"endHours":7.733365421330633,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:44","end":"08:44","startHours":7.733365421330633,"endHours":8.733365421330632,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:44","end":"09:44","startHours":8.733365421330632,"endHours":9.733365421330632,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:44","end":"10:44","startHours":9.733365421330632,"endHours":10.733365421330632,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:44","end":"11:44","startHours":10.733365421330632,"endHours":11.733365421330632,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:44","end":"12:44","startHours":11.733365421330632,"endHours":12.733365421330632,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:44","end":"13:44","startHours":12.733365421330632,"endHours":13.733365421330632,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:44","end":"14:44","startHours":13.733365421330632,"endHours":14.733365421330632,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:44","end":"15:44","startHours":14.733365421330632,"endHours":15.733365421330632,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:44","end":"16:44","startHours":15.733365421330632,"endHours":16.73336542133063,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:44","end":"17:44","startHours":16.73336542133063,"endHours":17.73336542133063,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:44","end":"18:44","startHours":17.73336542133063,"endHours":18.73336542133063,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:44","end":"19:44","startHours":18.73336542133063,"endHours":19.73336542133063,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:44","end":"20:44","startHours":19.73336542133063,"endHours":20.73336542133063,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:44","end":"21:44","startHours":20.73336542133063,"endHours":21.73336542133063,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:44","end":"22:44","startHours":21.73336542133063,"endHours":22.73336542133063,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:44","end":"23:44","startHours":22.73336542133063,"endHours":23.73336542133063,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:44","end":"00:44","startHours":23.73336542133063,"endHours":24.73336542133063,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:44","end":"01:44","startHours":24.73336542133063,"endHours":25.73336542133063,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:44","end":"02:44","startHours":25.73336542133063,"endHours":26.73336542133063,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:44","end":"03:44","startHours":26.73336542133063,"endHours":27.73336542133063,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:44","end":"04:44","startHours":27.73336542133063,"endHours":28.73336542133063,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:44","end":"05:44","startHours":28.73336542133063,"endHours":29.73336542133063,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"North-East","anandadiYoga":{"name":"Siddhi","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":4.2874554611307705,"eotMinutes":4.753870929866006,"ayanamsa":22.6754}},"calendars":{"vikram_samvat":1972,"vikram_samvatsara":"Vibhava","saka_samvat":1837,"saka_samvatsara":"Rākṣasa","bengali_samvat":1322,"malayalam_era":1091,"nanakshahi_year":446,"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 Caturthī · Vikram 1972 Vibhava · Śaka 1837 Rākṣasa"},"festivals":[{"id":"ganesha-chaturthi","name":"Gaṇeśa Caturthī","name_sanskrit":"गणेश चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Gaṇeśa's birth day; 11-day festival in Maharashtra.","vrata":false,"detection":{"tithi_number":4,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":1},{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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, 1915 CE · Ayodhyā · Vidhyamitra","description":"September 13, 1915 CE for Ayodhyā: Śukla Caturthī, sūryodaya 05:44, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1915-09-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1915-09-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/1915-09-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/1915-09-13","x-default":"https://vidhyamitra.com/city/ayodhya/1915-09-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T14:16:46.423Z","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":"2026-06-01T14:16:46.423Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T14:16:46.423Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}