{"id":"vidhyamitra:city-day:ayodhya:2023-12-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2023-12-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2023-12-18","date_display":"December 18, 2023 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":2023,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460296.770833,"kali_year":5125,"ahargana":1871831.2708,"sun":{"sidereal_longitude":241.2252,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":306.4761,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":65.2509,"elapsed_within_tithi_degrees":5.2509},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":306.4761,"elapsed_within_degrees":13.1428},"yoga":{"number":15,"name":"Vajra","sum_longitude":187.7013},"karana":{"half_tithi_index":10,"name":"Kaulava"},"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":2023,"month":12,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2460296.770833,"ahargana":1871831.2708,"kali_year":5125,"ayanamsa_lahiri":24.1877,"grahas":{"sun":{"sidereal_longitude":241.64732800000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":308.814028,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false,"latitude":-3.6802},"mars":{"sidereal_longitude":232.57032800000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":251.94892800000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":11.703327999999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":201.227128,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":308.033328,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":1.3714,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":181.3714,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","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":2023,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460296.770833,"kali_year":5125,"ahargana":1871831.2708,"sun":{"sidereal_longitude":241.2252,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":306.4761,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":65.2509,"elapsed_within_tithi_degrees":5.2509},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":306.4761,"elapsed_within_degrees":13.1428},"yoga":{"number":15,"name":"Vajra","sum_longitude":187.7013},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.68,"elongation":65.251},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.68,"opposition_distance":114.749}},"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":"06:45","sunsetLocal":"17:12","solarNoonLocal":"11:58","dayLengthHours":10.457566588190568,"dayLengthDisplay":"10 Hours 27 Mins 27 Secs","nightLengthDisplay":"13 Hours 32 Mins 33 Secs","moonriseLocal":"10:46","moonsetLocal":"22:08","rahuKala":{"name":"Rāhu Kāla","start":"08:03","end":"09:22","startHours":8.051683740292852,"endHours":9.358879563816672,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:40","end":"11:58","startHours":10.666075387340493,"endHours":11.973271210864315,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:17","end":"14:35","startHours":13.280467034388135,"endHours":14.587662857911956,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:11","end":"09:32","startHours":9.184586787346829,"endHours":9.533172340286516,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:11","end":"07:28","startHours":7.180219857943637,"endHours":7.459088300295385,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:37","end":"12:19","startHours":11.624685657924628,"endHours":12.321856763803998,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:21","end":"06:03","startHours":5.350145705010288,"endHours":6.047316810889659,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:52","end":"06:45","startHours":5.8730240344198155,"endHours":6.74448791676903,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:43","end":"14:25","startHours":13.716198975562742,"endHours":14.413370081442114,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:00","end":"17:24","startHours":17.0020545049596,"endHours":17.402054504959597,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:12","end":"17:38","startHours":17.202054504959598,"endHours":17.637786446134204,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:57","end":"18:42","startHours":16.952054504959598,"endHours":18.702054504959598,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:37","end":"00:19","startHours":23.624685657924626,"endHours":24.321856763803996,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:45","end":"08:03","startHours":6.74448791676903,"endHours":8.051683740292852,"quality":"auspicious"},{"name":"Kāla","start":"08:03","end":"09:22","startHours":8.051683740292852,"endHours":9.358879563816672,"quality":"inauspicious"},{"name":"Śubha","start":"09:22","end":"10:40","startHours":9.358879563816672,"endHours":10.666075387340493,"quality":"auspicious"},{"name":"Roga","start":"10:40","end":"11:58","startHours":10.666075387340493,"endHours":11.973271210864315,"quality":"inauspicious"},{"name":"Udveg","start":"11:58","end":"13:17","startHours":11.973271210864315,"endHours":13.280467034388135,"quality":"inauspicious"},{"name":"Chala","start":"13:17","end":"14:35","startHours":13.280467034388135,"endHours":14.587662857911956,"quality":"neutral"},{"name":"Labha","start":"14:35","end":"15:54","startHours":14.587662857911956,"endHours":15.894858681435776,"quality":"auspicious"},{"name":"Amṛta","start":"15:54","end":"17:12","startHours":15.894858681435776,"endHours":17.202054504959598,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:12","end":"18:54","startHours":17.202054504959598,"endHours":18.894858681435778,"quality":"neutral"},{"name":"Labha","start":"18:54","end":"20:35","startHours":18.894858681435778,"endHours":20.587662857911955,"quality":"auspicious"},{"name":"Amṛta","start":"20:35","end":"22:17","startHours":20.587662857911955,"endHours":22.280467034388135,"quality":"auspicious"},{"name":"Kāla","start":"22:17","end":"23:58","startHours":22.280467034388135,"endHours":23.973271210864315,"quality":"inauspicious"},{"name":"Śubha","start":"23:58","end":"01:40","startHours":23.973271210864315,"endHours":25.66607538734049,"quality":"auspicious"},{"name":"Roga","start":"01:40","end":"03:22","startHours":25.66607538734049,"endHours":27.35887956381667,"quality":"inauspicious"},{"name":"Udveg","start":"03:22","end":"05:03","startHours":27.35887956381667,"endHours":29.05168374029285,"quality":"inauspicious"},{"name":"Chala","start":"05:03","end":"06:45","startHours":29.05168374029285,"endHours":30.74448791676903,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:45","end":"07:45","startHours":6.74448791676903,"endHours":7.74448791676903,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:45","end":"08:45","startHours":7.74448791676903,"endHours":8.74448791676903,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:45","end":"09:45","startHours":8.74448791676903,"endHours":9.74448791676903,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:45","end":"10:45","startHours":9.74448791676903,"endHours":10.74448791676903,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:45","end":"11:45","startHours":10.74448791676903,"endHours":11.74448791676903,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:45","end":"12:45","startHours":11.74448791676903,"endHours":12.74448791676903,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:45","end":"13:45","startHours":12.74448791676903,"endHours":13.74448791676903,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:45","end":"14:45","startHours":13.74448791676903,"endHours":14.74448791676903,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:45","end":"15:45","startHours":14.74448791676903,"endHours":15.74448791676903,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:45","end":"16:45","startHours":15.74448791676903,"endHours":16.74448791676903,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:45","end":"17:45","startHours":16.74448791676903,"endHours":17.74448791676903,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:45","end":"18:45","startHours":17.74448791676903,"endHours":18.74448791676903,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:45","end":"19:45","startHours":18.74448791676903,"endHours":19.74448791676903,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:45","end":"20:45","startHours":19.74448791676903,"endHours":20.74448791676903,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:45","end":"21:45","startHours":20.74448791676903,"endHours":21.74448791676903,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:45","end":"22:45","startHours":21.74448791676903,"endHours":22.74448791676903,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:45","end":"23:45","startHours":22.74448791676903,"endHours":23.74448791676903,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:45","end":"00:45","startHours":23.74448791676903,"endHours":24.74448791676903,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:45","end":"01:45","startHours":24.74448791676903,"endHours":25.74448791676903,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:45","end":"02:45","startHours":25.74448791676903,"endHours":26.74448791676903,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:45","end":"03:45","startHours":26.74448791676903,"endHours":27.74448791676903,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:45","end":"04:45","startHours":27.74448791676903,"endHours":28.74448791676903,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:45","end":"05:45","startHours":28.74448791676903,"endHours":29.74448791676903,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:45","end":"06:45","startHours":29.74448791676903,"endHours":30.74448791676903,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"North-East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.370922184227442,"eotMinutes":2.787727348141232,"ayanamsa":24.1877}},"calendars":{"vikram_samvat":2080,"vikram_samvatsara":"Nala","saka_samvat":1945,"saka_samvatsara":"Śobhana","bengali_samvat":1430,"malayalam_era":1199,"nanakshahi_year":554,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Ṣaṣṭhī · Vikram 2080 Nala · Śaka 1945 Śobhana"},"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}],"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 December 18, 2023 CE · Ayodhyā · Vidhyamitra","description":"December 18, 2023 CE for Ayodhyā: Śukla Ṣaṣṭhī, sūryodaya 06:45, sūryāsta 17:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2023-12-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2023-12-18","sa":"https://sa.vidhyamitra.com/city/ayodhya/2023-12-18","hi":"https://hi.vidhyamitra.com/city/ayodhya/2023-12-18","x-default":"https://vidhyamitra.com/city/ayodhya/2023-12-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T22:24:30.780Z","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":"2026-05-14T22:24:30.780Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T22:24:30.780Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}