{"id":"vidhyamitra:city-day:ayodhya:1718-09-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1718-09-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1718-09-13","date_display":"September 13, 1718 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":1718,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2348801.770833,"kali_year":4820,"ahargana":1760336.2708,"sun":{"sidereal_longitude":149.837,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":7.9125,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":218.0755,"elapsed_within_tithi_degrees":2.0755},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":7.9125,"elapsed_within_degrees":7.9125},"yoga":{"number":12,"name":"Dhruva","sum_longitude":157.7496},"karana":{"half_tithi_index":36,"name":"Bava"},"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":1718,"month":9,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2348801.770833,"ahargana":1760336.2708,"kali_year":4820,"ayanamsa_lahiri":19.9235,"grahas":{"sun":{"sidereal_longitude":149.887857,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":5.058057000000019,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false,"latitude":-2.8302},"mars":{"sidereal_longitude":141.86445700000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":179.033457,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":125.89905699999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":121.49555699999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":193.128157,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":148.913,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":328.913,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1718,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2348801.770833,"kali_year":4820,"ahargana":1760336.2708,"sun":{"sidereal_longitude":149.837,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":7.9125,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":218.0755,"elapsed_within_tithi_degrees":2.0755},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":7.9125,"elapsed_within_degrees":7.9125},"yoga":{"number":12,"name":"Dhruva","sum_longitude":157.7496},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.83,"elongation":141.924},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.83,"opposition_distance":38.076}},"eclipse_window_40days":[{"offset_days":-18,"type":"solar","occurs":true,"moon_latitude":-1.337,"elongation":0.15}]},"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":12.397073493267413,"dayLengthDisplay":"12 Hours 23 Mins 49 Secs","nightLengthDisplay":"11 Hours 36 Mins 11 Secs","moonriseLocal":"19:55","moonsetLocal":"08:40","rahuKala":{"name":"Rāhu Kāla","start":"15:02","end":"16:35","startHours":15.039770524485753,"endHours":16.58940471114418,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:50","end":"10:23","startHours":8.841233777852047,"endHours":10.390867964510473,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:56","end":"13:29","startHours":11.9405021511689,"endHours":13.490136337827327,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:03","startHours":8.634615886297588,"endHours":9.047851669406503,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:35","startHours":6.258510133421335,"endHours":6.589098759908466,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:32","end":"12:21","startHours":11.527266368059987,"endHours":12.353737934277813,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:05","end":"04:55","startHours":4.0890222720995375,"endHours":4.9154938383173645,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:43","end":"05:45","startHours":4.708875946762908,"endHours":5.741965404535192,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:00","end":"14:50","startHours":14.006681066713469,"endHours":14.833152632931297,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:56","end":"18:20","startHours":17.939038897802607,"endHours":18.339038897802606,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:08","end":"18:39","startHours":18.139038897802607,"endHours":18.65558362668875,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:53","end":"19:38","startHours":17.889038897802607,"endHours":19.639038897802607,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:32","end":"00:21","startHours":23.527266368059987,"endHours":24.353737934277813,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:45","end":"07:17","startHours":5.741965404535192,"endHours":7.291599591193619,"quality":"inauspicious"},{"name":"Udveg","start":"07:17","end":"08:50","startHours":7.291599591193619,"endHours":8.841233777852047,"quality":"inauspicious"},{"name":"Chala","start":"08:50","end":"10:23","startHours":8.841233777852047,"endHours":10.390867964510473,"quality":"neutral"},{"name":"Labha","start":"10:23","end":"11:56","startHours":10.390867964510473,"endHours":11.9405021511689,"quality":"auspicious"},{"name":"Amṛta","start":"11:56","end":"13:29","startHours":11.9405021511689,"endHours":13.490136337827327,"quality":"auspicious"},{"name":"Kāla","start":"13:29","end":"15:02","startHours":13.490136337827327,"endHours":15.039770524485753,"quality":"inauspicious"},{"name":"Śubha","start":"15:02","end":"16:35","startHours":15.039770524485753,"endHours":16.58940471114418,"quality":"auspicious"},{"name":"Roga","start":"16:35","end":"18:08","startHours":16.58940471114418,"endHours":18.139038897802607,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:08","end":"19:35","startHours":18.139038897802607,"endHours":19.58940471114418,"quality":"inauspicious"},{"name":"Śubha","start":"19:35","end":"21:02","startHours":19.58940471114418,"endHours":21.039770524485753,"quality":"auspicious"},{"name":"Roga","start":"21:02","end":"22:29","startHours":21.039770524485753,"endHours":22.490136337827327,"quality":"inauspicious"},{"name":"Udveg","start":"22:29","end":"23:56","startHours":22.490136337827327,"endHours":23.9405021511689,"quality":"inauspicious"},{"name":"Chala","start":"23:56","end":"01:23","startHours":23.9405021511689,"endHours":25.390867964510473,"quality":"neutral"},{"name":"Labha","start":"01:23","end":"02:50","startHours":25.390867964510473,"endHours":26.841233777852047,"quality":"auspicious"},{"name":"Amṛta","start":"02:50","end":"04:17","startHours":26.841233777852047,"endHours":28.29159959119362,"quality":"auspicious"},{"name":"Kāla","start":"04:17","end":"05:45","startHours":28.29159959119362,"endHours":29.741965404535193,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:45","end":"06:45","startHours":5.741965404535192,"endHours":6.741965404535192,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:45","end":"07:45","startHours":6.741965404535192,"endHours":7.741965404535192,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:45","end":"08:45","startHours":7.741965404535192,"endHours":8.741965404535193,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:45","end":"09:45","startHours":8.741965404535193,"endHours":9.741965404535193,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:45","end":"10:45","startHours":9.741965404535193,"endHours":10.741965404535193,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:45","end":"11:45","startHours":10.741965404535193,"endHours":11.741965404535193,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:45","end":"12:45","startHours":11.741965404535193,"endHours":12.741965404535193,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:45","end":"13:45","startHours":12.741965404535193,"endHours":13.741965404535193,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:45","end":"14:45","startHours":13.741965404535193,"endHours":14.741965404535193,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:45","end":"15:45","startHours":14.741965404535193,"endHours":15.741965404535193,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:45","end":"16:45","startHours":15.741965404535193,"endHours":16.741965404535193,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:45","end":"17:45","startHours":16.741965404535193,"endHours":17.741965404535193,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:45","end":"18:45","startHours":17.741965404535193,"endHours":18.741965404535193,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:45","end":"19:45","startHours":18.741965404535193,"endHours":19.741965404535193,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:45","end":"20:45","startHours":19.741965404535193,"endHours":20.741965404535193,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:45","end":"21:45","startHours":20.741965404535193,"endHours":21.741965404535193,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:45","end":"22:45","startHours":21.741965404535193,"endHours":22.741965404535193,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:45","end":"23:45","startHours":22.741965404535193,"endHours":23.741965404535193,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:45","end":"00:45","startHours":23.741965404535193,"endHours":24.741965404535193,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:45","end":"01:45","startHours":24.741965404535193,"endHours":25.741965404535193,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:45","end":"02:45","startHours":25.741965404535193,"endHours":26.741965404535193,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:45","end":"03:45","startHours":26.741965404535193,"endHours":27.741965404535193,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:45","end":"04:45","startHours":27.741965404535193,"endHours":28.741965404535193,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:45","end":"05:45","startHours":28.741965404535193,"endHours":29.741965404535193,"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Vajra","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":4.034363525239934,"eotMinutes":4.753870929866006,"ayanamsa":19.9235}},"calendars":{"vikram_samvat":1775,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1640,"saka_samvatsara":"Vilambī","bengali_samvat":1125,"malayalam_era":894,"nanakshahi_year":249,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","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":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Caturthī · Vikram 1775 Virodhakṛt · Śaka 1640 Vilambī"},"festivals":[{"id":"angarika-chaturthi","name":"Aṅgāraka Caturthī (Tuesday Caturthī)","name_sanskrit":"अङ्गारक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa + Maṅgala","significance":"Tuesday-Caturthī (rare); supremely auspicious for Maṅgala-doṣa-nivāraṇa.","vrata":true,"detection":{"any_of":[{"tithi_number":4,"vara_name":"Maṅgalavāra (Tuesday)"},{"tithi_number":19,"vara_name":"Maṅgalavāra (Tuesday)"}]},"precedence":3},{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi_ingress":"Kanyā"},"precedence":4},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"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":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","relevance":0.5}]},"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, 1718 CE · Ayodhyā · Vidhyamitra","description":"September 13, 1718 CE for Ayodhyā: Kṛṣṇa Caturthī, sūryodaya 05:45, sūryāsta 18:08.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1718-09-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1718-09-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/1718-09-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/1718-09-13","x-default":"https://vidhyamitra.com/city/ayodhya/1718-09-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T07:49:51.265Z","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":"2026-06-01T07:49:51.265Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T07:49:51.265Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}