{"id":"vidhyamitra:city-day:ayodhya:1818-01-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1818-01-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1818-01-10","date_display":"January 10, 1818 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":1818,"month":1,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2385079.770833,"kali_year":4919,"ahargana":1796614.2708,"sun":{"sidereal_longitude":268.2573,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":308.4329,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":40.1756,"elapsed_within_tithi_degrees":4.1756},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":308.4329,"elapsed_within_degrees":1.7662},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":216.6902},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1818,"month":1,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2385079.770833,"ahargana":1796614.2708,"kali_year":4919,"ayanamsa_lahiri":21.311,"grahas":{"sun":{"sidereal_longitude":267.96607100000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":308.24727099999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false,"latitude":-4.4063},"mars":{"sidereal_longitude":49.77277099999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":289.441871,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":248.96137099999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"venus":{"sidereal_longitude":255.52277100000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":313.41817100000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":26.73,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":206.73,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":1818,"month":1,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2385079.770833,"kali_year":4919,"ahargana":1796614.2708,"sun":{"sidereal_longitude":268.2573,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":308.4329,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":40.1756,"elapsed_within_tithi_degrees":4.1756},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":308.4329,"elapsed_within_degrees":1.7662},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":216.6902},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.406,"elongation":40.176},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.406,"opposition_distance":139.824}},"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":"06:52","sunsetLocal":"17:26","solarNoonLocal":"12:09","dayLengthHours":10.562728628179098,"dayLengthDisplay":"10 Hours 33 Mins 46 Secs","nightLengthDisplay":"13 Hours 26 Mins 14 Secs","moonriseLocal":"09:11","moonsetLocal":"20:29","rahuKala":{"name":"Rāhu Kāla","start":"09:30","end":"10:49","startHours":9.504039906697994,"endHours":10.82438098522038,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:28","end":"14:47","startHours":13.465063142265155,"endHours":14.785404220787541,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:52","end":"08:11","startHours":6.863357749653218,"endHours":8.183698828175606,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:20","end":"09:41","startHours":9.327994429561674,"endHours":9.68008538383431,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:18","end":"07:35","startHours":7.303471442494014,"endHours":7.5851442059121235,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:48","end":"12:30","startHours":11.79263110947013,"endHours":12.496813018015404,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:27","end":"06:10","startHours":5.454993932562672,"endHours":6.159175841107945,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:59","end":"06:52","startHours":5.983130363971627,"endHours":6.863357749653218,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:54","end":"14:37","startHours":13.90517683510595,"endHours":14.609358743651223,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:14","end":"17:38","startHours":17.226086377832317,"endHours":17.626086377832316,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:26","end":"17:52","startHours":17.426086377832316,"endHours":17.866200070673113,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:11","end":"18:56","startHours":17.176086377832316,"endHours":18.926086377832316,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:48","end":"00:30","startHours":23.792631109470133,"endHours":24.496813018015406,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:52","end":"08:11","startHours":6.863357749653218,"endHours":8.183698828175606,"quality":"inauspicious"},{"name":"Śubha","start":"08:11","end":"09:30","startHours":8.183698828175606,"endHours":9.504039906697994,"quality":"auspicious"},{"name":"Roga","start":"09:30","end":"10:49","startHours":9.504039906697994,"endHours":10.82438098522038,"quality":"inauspicious"},{"name":"Udveg","start":"10:49","end":"12:09","startHours":10.82438098522038,"endHours":12.144722063742767,"quality":"inauspicious"},{"name":"Chala","start":"12:09","end":"13:28","startHours":12.144722063742767,"endHours":13.465063142265155,"quality":"neutral"},{"name":"Labha","start":"13:28","end":"14:47","startHours":13.465063142265155,"endHours":14.785404220787541,"quality":"auspicious"},{"name":"Amṛta","start":"14:47","end":"16:06","startHours":14.785404220787541,"endHours":16.10574529930993,"quality":"auspicious"},{"name":"Kāla","start":"16:06","end":"17:26","startHours":16.10574529930993,"endHours":17.426086377832316,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:26","end":"19:06","startHours":17.426086377832316,"endHours":19.10574529930993,"quality":"auspicious"},{"name":"Amṛta","start":"19:06","end":"20:47","startHours":19.10574529930993,"endHours":20.78540422078754,"quality":"auspicious"},{"name":"Kāla","start":"20:47","end":"22:28","startHours":20.78540422078754,"endHours":22.465063142265155,"quality":"inauspicious"},{"name":"Śubha","start":"22:28","end":"00:09","startHours":22.465063142265155,"endHours":24.14472206374277,"quality":"auspicious"},{"name":"Roga","start":"00:09","end":"01:49","startHours":24.14472206374277,"endHours":25.82438098522038,"quality":"inauspicious"},{"name":"Udveg","start":"01:49","end":"03:30","startHours":25.82438098522038,"endHours":27.504039906697994,"quality":"inauspicious"},{"name":"Chala","start":"03:30","end":"05:11","startHours":27.504039906697994,"endHours":29.183698828175608,"quality":"neutral"},{"name":"Labha","start":"05:11","end":"06:52","startHours":29.183698828175608,"endHours":30.86335774965322,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:52","end":"07:52","startHours":6.863357749653218,"endHours":7.863357749653218,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:52","end":"08:52","startHours":7.863357749653218,"endHours":8.863357749653218,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:52","end":"09:52","startHours":8.863357749653218,"endHours":9.863357749653218,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:52","end":"10:52","startHours":9.863357749653218,"endHours":10.863357749653218,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:52","end":"11:52","startHours":10.863357749653218,"endHours":11.863357749653218,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:52","end":"12:52","startHours":11.863357749653218,"endHours":12.863357749653218,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:52","end":"13:52","startHours":12.863357749653218,"endHours":13.863357749653218,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:52","end":"14:52","startHours":13.863357749653218,"endHours":14.863357749653218,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:52","end":"15:52","startHours":14.863357749653218,"endHours":15.863357749653218,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:52","end":"16:52","startHours":15.863357749653218,"endHours":16.86335774965322,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:52","end":"17:52","startHours":16.86335774965322,"endHours":17.86335774965322,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:52","end":"18:52","startHours":17.86335774965322,"endHours":18.86335774965322,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:52","end":"19:52","startHours":18.86335774965322,"endHours":19.86335774965322,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:52","end":"20:52","startHours":19.86335774965322,"endHours":20.86335774965322,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:52","end":"21:52","startHours":20.86335774965322,"endHours":21.86335774965322,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:52","end":"22:52","startHours":21.86335774965322,"endHours":22.86335774965322,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:52","end":"23:52","startHours":22.86335774965322,"endHours":23.86335774965322,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:52","end":"00:52","startHours":23.86335774965322,"endHours":24.86335774965322,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:52","end":"01:52","startHours":24.86335774965322,"endHours":25.86335774965322,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:52","end":"02:52","startHours":25.86335774965322,"endHours":26.86335774965322,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:52","end":"03:52","startHours":26.86335774965322,"endHours":27.86335774965322,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:52","end":"04:52","startHours":27.86335774965322,"endHours":28.86335774965322,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:52","end":"05:52","startHours":28.86335774965322,"endHours":29.86335774965322,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:52","end":"06:52","startHours":29.86335774965322,"endHours":30.86335774965322,"planetary_lord":"Mercury"}],"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","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Śubha","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-22.051068274062168,"eotMinutes":-7.499323824565993,"ayanamsa":21.311}},"calendars":{"vikram_samvat":1875,"vikram_samvatsara":"Khara","saka_samvat":1740,"saka_samvatsara":"Bahudhānya","bengali_samvat":1225,"malayalam_era":994,"nanakshahi_year":349,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Caturthī · Vikram 1875 Khara · Śaka 1740 Bahudhānya"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5},{"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":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 January 10, 1818 CE · Ayodhyā · Vidhyamitra","description":"January 10, 1818 CE for Ayodhyā: Śukla Caturthī, sūryodaya 06:52, sūryāsta 17:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1818-01-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1818-01-10","sa":"https://sa.vidhyamitra.com/city/ayodhya/1818-01-10","hi":"https://hi.vidhyamitra.com/city/ayodhya/1818-01-10","x-default":"https://vidhyamitra.com/city/ayodhya/1818-01-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T16:26:17.870Z","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":"2026-05-21T16:26:17.870Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T16:26:17.870Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}