{"id":"vidhyamitra:city-day:ayodhya:1955-12-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1955-12-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1955-12-18","date_display":"December 18, 1955 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":1955,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2435459.770833,"kali_year":5057,"ahargana":1846994.2708,"sun":{"sidereal_longitude":241.8364,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":285.9111,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":44.0747,"elapsed_within_tithi_degrees":8.0747},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":285.9111,"elapsed_within_degrees":5.9111},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":167.7475},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"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":1955,"month":12,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2435459.770833,"ahargana":1846994.2708,"kali_year":5057,"ayanamsa_lahiri":23.2378,"grahas":{"sun":{"sidereal_longitude":242.09268399999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":282.5323840000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false,"latitude":3.3717},"mars":{"sidereal_longitude":199.706184,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":250.24128399999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":128.143484,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":269.642384,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":214.51448400000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":237.3552,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":57.3552,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":1955,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2435459.770833,"kali_year":5057,"ahargana":1846994.2708,"sun":{"sidereal_longitude":241.8364,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":285.9111,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":44.0747,"elapsed_within_tithi_degrees":8.0747},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":285.9111,"elapsed_within_degrees":5.9111},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":167.7475},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.372,"elongation":44.075},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.372,"opposition_distance":135.925}},"eclipse_window_40days":[{"offset_days":-4,"type":"solar","occurs":true,"moon_latitude":-0.134,"elongation":1.874},{"offset_days":11,"type":"lunar","occurs":true,"moon_latitude":-1.144,"opposition_distance":1.618}]},"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":10.458922349559398,"dayLengthDisplay":"10 Hours 27 Mins 32 Secs","nightLengthDisplay":"13 Hours 32 Mins 28 Secs","moonriseLocal":"09:17","moonsetLocal":"20:03","rahuKala":{"name":"Rāhu Kāla","start":"15:54","end":"17:12","startHours":15.895367091949087,"endHours":17.202732385644012,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:58","end":"13:17","startHours":11.973271210864313,"endHours":13.280636504559238,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:35","end":"15:54","startHours":14.588001798254162,"endHours":15.895367091949087,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:11","end":"09:32","startHours":9.184225250981807,"endHours":9.53285599596712,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:11","end":"07:28","startHours":7.179598467316255,"endHours":7.458503063304506,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:37","end":"12:19","startHours":11.624640465879,"endHours":12.321901955849626,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:21","end":"06:03","startHours":5.349287056143361,"endHours":6.046548546113987,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:52","end":"06:45","startHours":5.872233173621331,"endHours":6.743810036084614,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:43","end":"14:25","startHours":13.71642493579088,"endHours":14.413686425761506,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:00","end":"17:24","startHours":17.002732385644013,"endHours":17.40273238564401,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:12","end":"17:38","startHours":17.202732385644012,"endHours":17.638520816875655,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:57","end":"18:42","startHours":16.952732385644012,"endHours":18.702732385644012,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:37","end":"00:19","startHours":23.624640465878997,"endHours":24.321901955849626,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:45","end":"08:03","startHours":6.743810036084614,"endHours":8.05117532977954,"quality":"inauspicious"},{"name":"Chala","start":"08:03","end":"09:22","startHours":8.05117532977954,"endHours":9.358540623474465,"quality":"neutral"},{"name":"Labha","start":"09:22","end":"10:40","startHours":9.358540623474465,"endHours":10.665905917169388,"quality":"auspicious"},{"name":"Amṛta","start":"10:40","end":"11:58","startHours":10.665905917169388,"endHours":11.973271210864313,"quality":"auspicious"},{"name":"Kāla","start":"11:58","end":"13:17","startHours":11.973271210864313,"endHours":13.280636504559238,"quality":"inauspicious"},{"name":"Śubha","start":"13:17","end":"14:35","startHours":13.280636504559238,"endHours":14.588001798254162,"quality":"auspicious"},{"name":"Roga","start":"14:35","end":"15:54","startHours":14.588001798254162,"endHours":15.895367091949087,"quality":"inauspicious"},{"name":"Udveg","start":"15:54","end":"17:12","startHours":15.895367091949087,"endHours":17.202732385644012,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:12","end":"18:54","startHours":17.202732385644012,"endHours":18.895367091949087,"quality":"auspicious"},{"name":"Roga","start":"18:54","end":"20:35","startHours":18.895367091949087,"endHours":20.58800179825416,"quality":"inauspicious"},{"name":"Udveg","start":"20:35","end":"22:17","startHours":20.58800179825416,"endHours":22.28063650455924,"quality":"inauspicious"},{"name":"Chala","start":"22:17","end":"23:58","startHours":22.28063650455924,"endHours":23.97327121086431,"quality":"neutral"},{"name":"Labha","start":"23:58","end":"01:40","startHours":23.97327121086431,"endHours":25.66590591716939,"quality":"auspicious"},{"name":"Amṛta","start":"01:40","end":"03:22","startHours":25.66590591716939,"endHours":27.358540623474465,"quality":"auspicious"},{"name":"Kāla","start":"03:22","end":"05:03","startHours":27.358540623474465,"endHours":29.05117532977954,"quality":"inauspicious"},{"name":"Śubha","start":"05:03","end":"06:45","startHours":29.05117532977954,"endHours":30.743810036084614,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:45","end":"07:45","startHours":6.743810036084614,"endHours":7.743810036084614,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:45","end":"08:45","startHours":7.743810036084614,"endHours":8.743810036084614,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:45","end":"09:45","startHours":8.743810036084614,"endHours":9.743810036084614,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:45","end":"10:45","startHours":9.743810036084614,"endHours":10.743810036084614,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:45","end":"11:45","startHours":10.743810036084614,"endHours":11.743810036084614,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:45","end":"12:45","startHours":11.743810036084614,"endHours":12.743810036084614,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:45","end":"13:45","startHours":12.743810036084614,"endHours":13.743810036084614,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:45","end":"14:45","startHours":13.743810036084614,"endHours":14.743810036084614,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:45","end":"15:45","startHours":14.743810036084614,"endHours":15.743810036084614,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:45","end":"16:45","startHours":15.743810036084614,"endHours":16.743810036084614,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:45","end":"17:45","startHours":16.743810036084614,"endHours":17.743810036084614,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:45","end":"18:45","startHours":17.743810036084614,"endHours":18.743810036084614,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:45","end":"19:45","startHours":18.743810036084614,"endHours":19.743810036084614,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:45","end":"20:45","startHours":19.743810036084614,"endHours":20.743810036084614,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:45","end":"21:45","startHours":20.743810036084614,"endHours":21.743810036084614,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:45","end":"22:45","startHours":21.743810036084614,"endHours":22.743810036084614,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:45","end":"23:45","startHours":22.743810036084614,"endHours":23.743810036084614,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:45","end":"00:45","startHours":23.743810036084614,"endHours":24.743810036084614,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:45","end":"01:45","startHours":24.743810036084614,"endHours":25.743810036084614,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:45","end":"02:45","startHours":25.743810036084614,"endHours":26.743810036084614,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:45","end":"03:45","startHours":26.743810036084614,"endHours":27.743810036084614,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:45","end":"04:45","startHours":27.743810036084614,"endHours":28.743810036084614,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:45","end":"05:45","startHours":28.743810036084614,"endHours":29.743810036084614,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:45","end":"06:45","startHours":29.743810036084614,"endHours":30.743810036084614,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.35408623249397,"eotMinutes":2.787727348141232,"ayanamsa":23.2378}},"calendars":{"vikram_samvat":2012,"vikram_samvatsara":"Kīlaka","saka_samvat":1877,"saka_samvatsara":"Manmatha","bengali_samvat":1362,"malayalam_era":1131,"nanakshahi_year":486,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Caturthī · Vikram 2012 Kīlaka · Śaka 1877 Manmatha"},"festivals":[{"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":"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 December 18, 1955 CE · Ayodhyā · Vidhyamitra","description":"December 18, 1955 CE for Ayodhyā: Śukla Caturthī, sūryodaya 06:45, sūryāsta 17:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1955-12-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1955-12-18","sa":"https://sa.vidhyamitra.com/city/ayodhya/1955-12-18","hi":"https://hi.vidhyamitra.com/city/ayodhya/1955-12-18","x-default":"https://vidhyamitra.com/city/ayodhya/1955-12-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T21:46:44.224Z","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":"2026-05-31T21:46:44.224Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T21:46:44.224Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}