{"id":"vidhyamitra:city-day:ayodhya:2300-09-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2300-09-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2300-09-18","date_display":"September 18, 2300 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":2300,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2561377.770833,"kali_year":5402,"ahargana":1972912.2708,"sun":{"sidereal_longitude":145.3683,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":192.1743,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":46.806,"elapsed_within_tithi_degrees":10.806},"nakshatra":{"number":15,"name":"Svātī","pada":2,"moon_longitude":192.1743,"elapsed_within_degrees":5.5077},"yoga":{"number":26,"name":"Indra","sum_longitude":337.5426},"karana":{"half_tithi_index":7,"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":2300,"month":9,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2561377.770833,"ahargana":1972912.2708,"kali_year":5402,"ayanamsa_lahiri":28.0537,"grahas":{"sun":{"sidereal_longitude":146.82339100000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":191.25359100000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false,"latitude":2.478},"mars":{"sidereal_longitude":232.02569099999994,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":126.35189100000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":136.39969099999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":116.98819100000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":106.28409099999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":45.6136,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":225.6136,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"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":2300,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2561377.770833,"kali_year":5402,"ahargana":1972912.2708,"sun":{"sidereal_longitude":145.3683,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":192.1743,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":46.806,"elapsed_within_tithi_degrees":10.806},"nakshatra":{"number":15,"name":"Svātī","pada":2,"moon_longitude":192.1743,"elapsed_within_degrees":5.5077},"yoga":{"number":26,"name":"Indra","sum_longitude":337.5426},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.478,"elongation":46.806},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.478,"opposition_distance":133.194}},"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":"05:47","sunsetLocal":"18:02","solarNoonLocal":"11:55","dayLengthHours":12.261686390701016,"dayLengthDisplay":"12 Hours 15 Mins 42 Secs","nightLengthDisplay":"11 Hours 44 Mins 18 Secs","moonriseLocal":"09:20","moonsetLocal":"20:25","rahuKala":{"name":"Rāhu Kāla","start":"14:58","end":"16:30","startHours":14.974987894780682,"endHours":16.50769869361831,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:51","end":"10:23","startHours":8.844144699430174,"endHours":10.376855498267801,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:55","end":"13:27","startHours":11.909566297105428,"endHours":13.442277095943055,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:03","startHours":8.639783259585158,"endHours":9.04850613927519,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:17","end":"06:37","startHours":6.289626701367463,"endHours":6.6166050051194905,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:30","end":"12:19","startHours":11.500843417415394,"endHours":12.318289176795462,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:09","end":"04:58","startHours":4.143831582994785,"endHours":4.961277342374853,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:45","end":"05:47","startHours":4.756915902529836,"endHours":5.77872310175492,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:46","startHours":13.953180695555597,"endHours":14.770626454935664,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:50","end":"18:14","startHours":17.840409492455937,"endHours":18.240409492455935,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:02","end":"18:33","startHours":18.040409492455936,"endHours":18.55131309206848,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:47","end":"19:32","startHours":17.790409492455936,"endHours":19.540409492455936,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:30","end":"00:19","startHours":23.500843417415393,"endHours":24.318289176795464,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:47","end":"07:19","startHours":5.77872310175492,"endHours":7.311433900592547,"quality":"inauspicious"},{"name":"Udveg","start":"07:19","end":"08:51","startHours":7.311433900592547,"endHours":8.844144699430174,"quality":"inauspicious"},{"name":"Chala","start":"08:51","end":"10:23","startHours":8.844144699430174,"endHours":10.376855498267801,"quality":"neutral"},{"name":"Labha","start":"10:23","end":"11:55","startHours":10.376855498267801,"endHours":11.909566297105428,"quality":"auspicious"},{"name":"Amṛta","start":"11:55","end":"13:27","startHours":11.909566297105428,"endHours":13.442277095943055,"quality":"auspicious"},{"name":"Kāla","start":"13:27","end":"14:58","startHours":13.442277095943055,"endHours":14.974987894780682,"quality":"inauspicious"},{"name":"Śubha","start":"14:58","end":"16:30","startHours":14.974987894780682,"endHours":16.50769869361831,"quality":"auspicious"},{"name":"Roga","start":"16:30","end":"18:02","startHours":16.50769869361831,"endHours":18.040409492455936,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:02","end":"19:30","startHours":18.040409492455936,"endHours":19.50769869361831,"quality":"inauspicious"},{"name":"Śubha","start":"19:30","end":"20:58","startHours":19.50769869361831,"endHours":20.974987894780682,"quality":"auspicious"},{"name":"Roga","start":"20:58","end":"22:27","startHours":20.974987894780682,"endHours":22.442277095943055,"quality":"inauspicious"},{"name":"Udveg","start":"22:27","end":"23:55","startHours":22.442277095943055,"endHours":23.909566297105428,"quality":"inauspicious"},{"name":"Chala","start":"23:55","end":"01:23","startHours":23.909566297105428,"endHours":25.3768554982678,"quality":"neutral"},{"name":"Labha","start":"01:23","end":"02:51","startHours":25.3768554982678,"endHours":26.844144699430174,"quality":"auspicious"},{"name":"Amṛta","start":"02:51","end":"04:19","startHours":26.844144699430174,"endHours":28.311433900592547,"quality":"auspicious"},{"name":"Kāla","start":"04:19","end":"05:47","startHours":28.311433900592547,"endHours":29.77872310175492,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:47","end":"06:47","startHours":5.77872310175492,"endHours":6.77872310175492,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:47","end":"07:47","startHours":6.77872310175492,"endHours":7.77872310175492,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:47","end":"08:47","startHours":7.77872310175492,"endHours":8.77872310175492,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:47","end":"09:47","startHours":8.77872310175492,"endHours":9.77872310175492,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:47","end":"10:47","startHours":9.77872310175492,"endHours":10.77872310175492,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:47","end":"11:47","startHours":10.77872310175492,"endHours":11.77872310175492,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:47","end":"12:47","startHours":11.77872310175492,"endHours":12.77872310175492,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:47","end":"13:47","startHours":12.77872310175492,"endHours":13.77872310175492,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:47","end":"14:47","startHours":13.77872310175492,"endHours":14.77872310175492,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:47","end":"15:47","startHours":14.77872310175492,"endHours":15.77872310175492,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:47","end":"16:47","startHours":15.77872310175492,"endHours":16.77872310175492,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:47","end":"17:47","startHours":16.77872310175492,"endHours":17.77872310175492,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:47","end":"18:47","startHours":17.77872310175492,"endHours":18.77872310175492,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:47","end":"19:47","startHours":18.77872310175492,"endHours":19.77872310175492,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:47","end":"20:47","startHours":19.77872310175492,"endHours":20.77872310175492,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:47","end":"21:47","startHours":20.77872310175492,"endHours":21.77872310175492,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:47","end":"22:47","startHours":21.77872310175492,"endHours":22.77872310175492,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:47","end":"23:47","startHours":22.77872310175492,"endHours":23.77872310175492,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:47","end":"00:47","startHours":23.77872310175492,"endHours":24.77872310175492,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:47","end":"01:47","startHours":24.77872310175492,"endHours":25.77872310175492,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:47","end":"02:47","startHours":25.77872310175492,"endHours":26.77872310175492,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:47","end":"03:47","startHours":26.77872310175492,"endHours":27.77872310175492,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:47","end":"04:47","startHours":27.77872310175492,"endHours":28.77872310175492,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:47","end":"05:47","startHours":28.77872310175492,"endHours":29.77872310175492,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"North","rahuVasa":"North","anandadiYoga":{"name":"Gada","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":2.035261441614817,"eotMinutes":6.610022173674397,"ayanamsa":28.0537}},"calendars":{"vikram_samvat":2357,"vikram_samvatsara":"Vijaya","saka_samvat":2222,"saka_samvatsara":"Vikrama","bengali_samvat":1707,"malayalam_era":1476,"nanakshahi_year":831,"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 2357 Vijaya · Śaka 2222 Vikrama"},"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":"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":"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":"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 18, 2300 CE · Ayodhyā · Vidhyamitra","description":"September 18, 2300 CE for Ayodhyā: Śukla Caturthī, sūryodaya 05:47, sūryāsta 18:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2300-09-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2300-09-18","sa":"https://sa.vidhyamitra.com/city/ayodhya/2300-09-18","hi":"https://hi.vidhyamitra.com/city/ayodhya/2300-09-18","x-default":"https://vidhyamitra.com/city/ayodhya/2300-09-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T09:25:36.566Z","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":"2026-06-02T09:25:36.566Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T09:25:36.566Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}