{"id":"vidhyamitra:city-day:ayodhya:1973-12-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1973-12-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1973-12-31","date_display":"December 31, 1973 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":1973,"month":12,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2442047.770833,"kali_year":5075,"ahargana":1853582.2708,"sun":{"sidereal_longitude":255.5465,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":329.7069,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":74.1604,"elapsed_within_tithi_degrees":2.1604},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":329.7069,"elapsed_within_degrees":9.7069},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":225.2534},"karana":{"half_tithi_index":12,"name":"Gara"},"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":1973,"month":12,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2442047.770833,"ahargana":1853582.2708,"kali_year":5075,"ayanamsa_lahiri":23.4898,"grahas":{"sun":{"sidereal_longitude":255.72677399999998,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":325.71697399999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false,"latitude":4.4495},"mars":{"sidereal_longitude":9.085374000000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":250.66887399999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":291.02127399999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"venus":{"sidereal_longitude":288.01897400000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":67.36947399999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":248.2912,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":68.2912,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"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":1973,"month":12,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2442047.770833,"kali_year":5075,"ahargana":1853582.2708,"sun":{"sidereal_longitude":255.5465,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":329.7069,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":74.1604,"elapsed_within_tithi_degrees":2.1604},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":329.7069,"elapsed_within_degrees":9.7069},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":225.2534},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.449,"elongation":74.16},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.449,"opposition_distance":105.84}},"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":"06:50","sunsetLocal":"17:19","solarNoonLocal":"12:04","dayLengthHours":10.478035499858201,"dayLengthDisplay":"10 Hours 28 Mins 41 Secs","nightLengthDisplay":"13 Hours 31 Mins 19 Secs","moonriseLocal":"10:50","moonsetLocal":"22:38","rahuKala":{"name":"Rāhu Kāla","start":"08:09","end":"09:27","startHours":8.14474060294993,"endHours":9.454495040432205,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:46","end":"12:04","startHours":10.764249477914479,"endHours":12.074003915396755,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:23","end":"14:42","startHours":13.383758352879031,"endHours":14.693512790361305,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:17","end":"09:38","startHours":9.279861115434567,"endHours":9.629128965429842,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:16","end":"07:33","startHours":7.271570977961746,"endHours":7.550985257957965,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:43","end":"12:25","startHours":11.724736065401482,"endHours":12.423271765392029,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:26","end":"06:08","startHours":5.4379147654865605,"endHours":6.1364504654771075,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:58","end":"06:50","startHours":5.961816540479471,"endHours":6.8349861654676545,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:49","end":"14:31","startHours":13.820343165373123,"endHours":14.51887886536367,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:07","end":"17:31","startHours":17.113021665325856,"endHours":17.513021665325855,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:19","end":"17:45","startHours":17.313021665325856,"endHours":17.74960647781995,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:04","end":"18:49","startHours":17.063021665325856,"endHours":18.813021665325856,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:43","end":"00:25","startHours":23.724736065401483,"endHours":24.423271765392027,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:50","end":"08:09","startHours":6.8349861654676545,"endHours":8.14474060294993,"quality":"auspicious"},{"name":"Kāla","start":"08:09","end":"09:27","startHours":8.14474060294993,"endHours":9.454495040432205,"quality":"inauspicious"},{"name":"Śubha","start":"09:27","end":"10:46","startHours":9.454495040432205,"endHours":10.764249477914479,"quality":"auspicious"},{"name":"Roga","start":"10:46","end":"12:04","startHours":10.764249477914479,"endHours":12.074003915396755,"quality":"inauspicious"},{"name":"Udveg","start":"12:04","end":"13:23","startHours":12.074003915396755,"endHours":13.383758352879031,"quality":"inauspicious"},{"name":"Chala","start":"13:23","end":"14:42","startHours":13.383758352879031,"endHours":14.693512790361305,"quality":"neutral"},{"name":"Labha","start":"14:42","end":"16:00","startHours":14.693512790361305,"endHours":16.00326722784358,"quality":"auspicious"},{"name":"Amṛta","start":"16:00","end":"17:19","startHours":16.00326722784358,"endHours":17.313021665325856,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:19","end":"19:00","startHours":17.313021665325856,"endHours":19.00326722784358,"quality":"neutral"},{"name":"Labha","start":"19:00","end":"20:42","startHours":19.00326722784358,"endHours":20.693512790361304,"quality":"auspicious"},{"name":"Amṛta","start":"20:42","end":"22:23","startHours":20.693512790361304,"endHours":22.38375835287903,"quality":"auspicious"},{"name":"Kāla","start":"22:23","end":"00:04","startHours":22.38375835287903,"endHours":24.074003915396755,"quality":"inauspicious"},{"name":"Śubha","start":"00:04","end":"01:46","startHours":24.074003915396755,"endHours":25.76424947791448,"quality":"auspicious"},{"name":"Roga","start":"01:46","end":"03:27","startHours":25.76424947791448,"endHours":27.454495040432207,"quality":"inauspicious"},{"name":"Udveg","start":"03:27","end":"05:09","startHours":27.454495040432207,"endHours":29.14474060294993,"quality":"inauspicious"},{"name":"Chala","start":"05:09","end":"06:50","startHours":29.14474060294993,"endHours":30.834986165467654,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:50","end":"07:50","startHours":6.8349861654676545,"endHours":7.8349861654676545,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:50","end":"08:50","startHours":7.8349861654676545,"endHours":8.834986165467654,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:50","end":"09:50","startHours":8.834986165467654,"endHours":9.834986165467654,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:50","end":"10:50","startHours":9.834986165467654,"endHours":10.834986165467654,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:50","end":"11:50","startHours":10.834986165467654,"endHours":11.834986165467654,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:50","end":"12:50","startHours":11.834986165467654,"endHours":12.834986165467654,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:50","end":"13:50","startHours":12.834986165467654,"endHours":13.834986165467654,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:50","end":"14:50","startHours":13.834986165467654,"endHours":14.834986165467654,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:50","end":"15:50","startHours":14.834986165467654,"endHours":15.834986165467654,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:50","end":"16:50","startHours":15.834986165467654,"endHours":16.834986165467654,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:50","end":"17:50","startHours":16.834986165467654,"endHours":17.834986165467654,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:50","end":"18:50","startHours":17.834986165467654,"endHours":18.834986165467654,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:50","end":"19:50","startHours":18.834986165467654,"endHours":19.834986165467654,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:50","end":"20:50","startHours":19.834986165467654,"endHours":20.834986165467654,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:50","end":"21:50","startHours":20.834986165467654,"endHours":21.834986165467654,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:50","end":"22:50","startHours":21.834986165467654,"endHours":22.834986165467654,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:50","end":"23:50","startHours":22.834986165467654,"endHours":23.834986165467654,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:50","end":"00:50","startHours":23.834986165467654,"endHours":24.834986165467654,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:50","end":"01:50","startHours":24.834986165467654,"endHours":25.834986165467654,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:50","end":"02:50","startHours":25.834986165467654,"endHours":26.834986165467654,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:50","end":"03:50","startHours":26.834986165467654,"endHours":27.834986165467654,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:50","end":"04:50","startHours":27.834986165467654,"endHours":28.834986165467654,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:50","end":"05:50","startHours":28.834986165467654,"endHours":29.834986165467654,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:50","end":"06:50","startHours":29.834986165467654,"endHours":30.834986165467654,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"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":"Ānanda","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":-23.11623431056034,"eotMinutes":-3.2562349238053434,"ayanamsa":23.4898}},"calendars":{"vikram_samvat":2030,"vikram_samvatsara":"Akṣaya","saka_samvat":1895,"saka_samvatsara":"Pramādī","bengali_samvat":1380,"malayalam_era":1149,"nanakshahi_year":504,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Saptamī · Vikram 2030 Akṣaya · Śaka 1895 Pramādī"},"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 31, 1973 CE · Ayodhyā · Vidhyamitra","description":"December 31, 1973 CE for Ayodhyā: Śukla Saptamī, sūryodaya 06:50, sūryāsta 17:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1973-12-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1973-12-31","sa":"https://sa.vidhyamitra.com/city/ayodhya/1973-12-31","hi":"https://hi.vidhyamitra.com/city/ayodhya/1973-12-31","x-default":"https://vidhyamitra.com/city/ayodhya/1973-12-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-24T22:33:10.285Z","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":"2026-05-24T22:33:10.285Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-24T22:33:10.285Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}