{"id":"vidhyamitra:city-day:ayodhya:1813-04-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1813-04-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1813-04-18","date_display":"April 18, 1813 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":1813,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2383351.770833,"kali_year":4915,"ahargana":1794886.2708,"sun":{"sidereal_longitude":6.9017,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":215.0024,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":208.1007,"elapsed_within_tithi_degrees":4.1007},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":215.0024,"elapsed_within_degrees":1.6691},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":221.9041},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1813,"month":4,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2383351.770833,"ahargana":1794886.2708,"kali_year":4915,"ayanamsa_lahiri":21.2449,"grahas":{"sun":{"sidereal_longitude":6.358592999999985,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":211.75209300000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false,"latitude":4.4691},"mars":{"sidereal_longitude":269.216893,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":14.535192999999992,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":100.45939299999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"venus":{"sidereal_longitude":359.084693,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":269.894893,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":118.2878,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":298.2878,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":1813,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2383351.770833,"kali_year":4915,"ahargana":1794886.2708,"sun":{"sidereal_longitude":6.9017,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":215.0024,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":208.1007,"elapsed_within_tithi_degrees":4.1007},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":215.0024,"elapsed_within_degrees":1.6691},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":221.9041},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.469,"elongation":151.899},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.469,"opposition_distance":28.101}},"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":"05:35","sunsetLocal":"18:26","solarNoonLocal":"12:01","dayLengthHours":12.85188623004599,"dayLengthDisplay":"12 Hours 51 Mins 07 Secs","nightLengthDisplay":"11 Hours 08 Mins 53 Secs","moonriseLocal":"20:18","moonsetLocal":"07:06","rahuKala":{"name":"Rāhu Kāla","start":"16:50","end":"18:26","startHours":16.830759288002525,"endHours":18.437245066758273,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:01","end":"13:37","startHours":12.011301951735277,"endHours":13.617787730491026,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:13","end":"16:50","startHours":15.224273509246775,"endHours":16.830759288002525,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:35","end":"09:01","startHours":8.58413229038968,"endHours":9.012528498057879,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:07","end":"06:28","startHours":6.120854096297532,"endHours":6.4635710624320915,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:35","end":"12:26","startHours":11.582905744067077,"endHours":12.439698159403477,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:52","end":"04:44","startHours":3.8717740060394843,"endHours":4.728566421375883,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:31","end":"05:35","startHours":4.514368317541784,"endHours":5.585358836712283,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"15:01","startHours":14.153282990076276,"endHours":15.010075405412675,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:14","end":"18:38","startHours":18.237245066758273,"endHours":18.637245066758272,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:26","end":"18:58","startHours":18.437245066758273,"endHours":18.972740326343523,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:11","end":"19:56","startHours":18.187245066758273,"endHours":19.937245066758273,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:35","end":"00:26","startHours":23.582905744067077,"endHours":24.439698159403477,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:35","end":"07:12","startHours":5.585358836712283,"endHours":7.191844615468032,"quality":"inauspicious"},{"name":"Chala","start":"07:12","end":"08:48","startHours":7.191844615468032,"endHours":8.79833039422378,"quality":"neutral"},{"name":"Labha","start":"08:48","end":"10:24","startHours":8.79833039422378,"endHours":10.40481617297953,"quality":"auspicious"},{"name":"Amṛta","start":"10:24","end":"12:01","startHours":10.40481617297953,"endHours":12.011301951735277,"quality":"auspicious"},{"name":"Kāla","start":"12:01","end":"13:37","startHours":12.011301951735277,"endHours":13.617787730491026,"quality":"inauspicious"},{"name":"Śubha","start":"13:37","end":"15:13","startHours":13.617787730491026,"endHours":15.224273509246775,"quality":"auspicious"},{"name":"Roga","start":"15:13","end":"16:50","startHours":15.224273509246775,"endHours":16.830759288002525,"quality":"inauspicious"},{"name":"Udveg","start":"16:50","end":"18:26","startHours":16.830759288002525,"endHours":18.437245066758273,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:26","end":"19:50","startHours":18.437245066758273,"endHours":19.830759288002525,"quality":"auspicious"},{"name":"Roga","start":"19:50","end":"21:13","startHours":19.830759288002525,"endHours":21.224273509246775,"quality":"inauspicious"},{"name":"Udveg","start":"21:13","end":"22:37","startHours":21.224273509246775,"endHours":22.617787730491028,"quality":"inauspicious"},{"name":"Chala","start":"22:37","end":"00:01","startHours":22.617787730491028,"endHours":24.011301951735277,"quality":"neutral"},{"name":"Labha","start":"00:01","end":"01:24","startHours":24.011301951735277,"endHours":25.40481617297953,"quality":"auspicious"},{"name":"Amṛta","start":"01:24","end":"02:48","startHours":25.40481617297953,"endHours":26.798330394223782,"quality":"auspicious"},{"name":"Kāla","start":"02:48","end":"04:12","startHours":26.798330394223782,"endHours":28.19184461546803,"quality":"inauspicious"},{"name":"Śubha","start":"04:12","end":"05:35","startHours":28.19184461546803,"endHours":29.58535883671228,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:35","end":"06:35","startHours":5.585358836712283,"endHours":6.585358836712283,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:35","end":"07:35","startHours":6.585358836712283,"endHours":7.585358836712283,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:35","end":"08:35","startHours":7.585358836712283,"endHours":8.585358836712283,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:35","end":"09:35","startHours":8.585358836712283,"endHours":9.585358836712283,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:35","end":"10:35","startHours":9.585358836712283,"endHours":10.585358836712283,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:35","end":"11:35","startHours":10.585358836712283,"endHours":11.585358836712283,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:35","end":"12:35","startHours":11.585358836712283,"endHours":12.585358836712283,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:35","end":"13:35","startHours":12.585358836712283,"endHours":13.585358836712283,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:35","end":"14:35","startHours":13.585358836712283,"endHours":14.585358836712283,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:35","end":"15:35","startHours":14.585358836712283,"endHours":15.585358836712283,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:35","end":"16:35","startHours":15.585358836712283,"endHours":16.58535883671228,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:35","end":"17:35","startHours":16.58535883671228,"endHours":17.58535883671228,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:35","end":"18:35","startHours":17.58535883671228,"endHours":18.58535883671228,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:35","end":"19:35","startHours":18.58535883671228,"endHours":19.58535883671228,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:35","end":"20:35","startHours":19.58535883671228,"endHours":20.58535883671228,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:35","end":"21:35","startHours":20.58535883671228,"endHours":21.58535883671228,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:35","end":"22:35","startHours":21.58535883671228,"endHours":22.58535883671228,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:35","end":"23:35","startHours":22.58535883671228,"endHours":23.58535883671228,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:35","end":"00:35","startHours":23.58535883671228,"endHours":24.58535883671228,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:35","end":"01:35","startHours":24.58535883671228,"endHours":25.58535883671228,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:35","end":"02:35","startHours":25.58535883671228,"endHours":26.58535883671228,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:35","end":"03:35","startHours":26.58535883671228,"endHours":27.58535883671228,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:35","end":"04:35","startHours":27.58535883671228,"endHours":28.58535883671228,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:35","end":"05:35","startHours":28.58535883671228,"endHours":29.58535883671228,"planetary_lord":"Jupiter"}],"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":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"North-East","anandadiYoga":{"name":"Mṛtyu","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":10.61970337628869,"eotMinutes":0.5058828958834352,"ayanamsa":21.2449}},"calendars":{"vikram_samvat":1870,"vikram_samvatsara":"Vyaya","saka_samvat":1735,"saka_samvatsara":"Śrīmukha","bengali_samvat":1220,"malayalam_era":989,"nanakshahi_year":344,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Tṛtīyā · Vikram 1870 Vyaya · Śaka 1735 Śrīmukha"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 April 18, 1813 CE · Ayodhyā · Vidhyamitra","description":"April 18, 1813 CE for Ayodhyā: Kṛṣṇa Tṛtīyā, sūryodaya 05:35, sūryāsta 18:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1813-04-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1813-04-18","sa":"https://sa.vidhyamitra.com/city/ayodhya/1813-04-18","hi":"https://hi.vidhyamitra.com/city/ayodhya/1813-04-18","x-default":"https://vidhyamitra.com/city/ayodhya/1813-04-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T00:22:50.939Z","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":"2026-06-01T00:22:50.939Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T00:22:50.939Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}