{"id":"vidhyamitra:city-day:ayodhya:2179-12-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2179-12-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2179-12-20","date_display":"December 20, 2179 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":2179,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517276.770833,"kali_year":5281,"ahargana":1928811.2708,"sun":{"sidereal_longitude":240.8495,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":132.9798,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":252.1303,"elapsed_within_tithi_degrees":0.1303},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":132.9798,"elapsed_within_degrees":12.9798},"yoga":{"number":2,"name":"Prīti","sum_longitude":13.8293},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"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":2179,"month":12,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517276.770833,"ahargana":1928811.2708,"kali_year":5281,"ayanamsa_lahiri":26.367,"grahas":{"sun":{"sidereal_longitude":241.64357300000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":132.543773,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false,"latitude":-4.4997},"mars":{"sidereal_longitude":217.54447300000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":251.610773,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":78.70867299999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":280.8318730000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":64.96297300000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":222.2968,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":42.2968,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":2179,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517276.770833,"kali_year":5281,"ahargana":1928811.2708,"sun":{"sidereal_longitude":240.8495,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":132.9798,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":252.1303,"elapsed_within_tithi_degrees":0.1303},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":132.9798,"elapsed_within_degrees":12.9798},"yoga":{"number":2,"name":"Prīti","sum_longitude":13.8293},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.5,"elongation":107.87},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.5,"opposition_distance":72.13}},"eclipse_window_40days":[{"offset_days":-6,"type":"lunar","occurs":true,"moon_latitude":-0.781,"opposition_distance":2.073}]},"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":"06:46","sunsetLocal":"17:13","solarNoonLocal":"11:59","dayLengthHours":10.453488948165893,"dayLengthDisplay":"10 Hours 27 Mins 13 Secs","nightLengthDisplay":"13 Hours 32 Mins 47 Secs","moonriseLocal":"22:24","moonsetLocal":"11:02","rahuKala":{"name":"Rāhu Kāla","start":"08:04","end":"09:23","startHours":8.06880968572998,"endHours":9.375495804250715,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:41","end":"11:59","startHours":10.682181922771452,"endHours":11.98886804129219,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:18","end":"14:36","startHours":13.295554159812925,"endHours":14.602240278333662,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:12","end":"09:33","startHours":9.20127098844795,"endHours":9.549720620053481,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:12","end":"07:29","startHours":7.1976856067161545,"endHours":7.476445312000578,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:20","startHours":11.64041840968666,"endHours":12.337317672897719,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:22","end":"06:04","startHours":5.3683250407871235,"endHours":6.065224303998183,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:53","end":"06:46","startHours":5.890999488195417,"endHours":6.762123567209242,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:44","end":"14:26","startHours":13.731116199319837,"endHours":14.428015462530897,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:01","end":"17:25","startHours":17.015612515375135,"endHours":17.415612515375134,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:13","end":"17:39","startHours":17.215612515375135,"endHours":17.651174554882047,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:58","end":"18:43","startHours":16.965612515375135,"endHours":18.715612515375135,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:20","startHours":23.64041840968666,"endHours":24.33731767289772,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:46","end":"08:04","startHours":6.762123567209242,"endHours":8.06880968572998,"quality":"auspicious"},{"name":"Kāla","start":"08:04","end":"09:23","startHours":8.06880968572998,"endHours":9.375495804250715,"quality":"inauspicious"},{"name":"Śubha","start":"09:23","end":"10:41","startHours":9.375495804250715,"endHours":10.682181922771452,"quality":"auspicious"},{"name":"Roga","start":"10:41","end":"11:59","startHours":10.682181922771452,"endHours":11.98886804129219,"quality":"inauspicious"},{"name":"Udveg","start":"11:59","end":"13:18","startHours":11.98886804129219,"endHours":13.295554159812925,"quality":"inauspicious"},{"name":"Chala","start":"13:18","end":"14:36","startHours":13.295554159812925,"endHours":14.602240278333662,"quality":"neutral"},{"name":"Labha","start":"14:36","end":"15:55","startHours":14.602240278333662,"endHours":15.908926396854397,"quality":"auspicious"},{"name":"Amṛta","start":"15:55","end":"17:13","startHours":15.908926396854397,"endHours":17.215612515375135,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:13","end":"18:55","startHours":17.215612515375135,"endHours":18.908926396854397,"quality":"neutral"},{"name":"Labha","start":"18:55","end":"20:36","startHours":18.908926396854397,"endHours":20.60224027833366,"quality":"auspicious"},{"name":"Amṛta","start":"20:36","end":"22:18","startHours":20.60224027833366,"endHours":22.295554159812923,"quality":"auspicious"},{"name":"Kāla","start":"22:18","end":"23:59","startHours":22.295554159812923,"endHours":23.98886804129219,"quality":"inauspicious"},{"name":"Śubha","start":"23:59","end":"01:41","startHours":23.98886804129219,"endHours":25.682181922771452,"quality":"auspicious"},{"name":"Roga","start":"01:41","end":"03:23","startHours":25.682181922771452,"endHours":27.375495804250715,"quality":"inauspicious"},{"name":"Udveg","start":"03:23","end":"05:04","startHours":27.375495804250715,"endHours":29.06880968572998,"quality":"inauspicious"},{"name":"Chala","start":"05:04","end":"06:46","startHours":29.06880968572998,"endHours":30.762123567209244,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:46","end":"07:46","startHours":6.762123567209242,"endHours":7.762123567209242,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:46","end":"08:46","startHours":7.762123567209242,"endHours":8.762123567209242,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:46","end":"09:46","startHours":8.762123567209242,"endHours":9.762123567209242,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:46","end":"10:46","startHours":9.762123567209242,"endHours":10.762123567209242,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:46","end":"11:46","startHours":10.762123567209242,"endHours":11.762123567209242,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:46","end":"12:46","startHours":11.762123567209242,"endHours":12.762123567209242,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:46","end":"13:46","startHours":12.762123567209242,"endHours":13.762123567209242,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:46","end":"14:46","startHours":13.762123567209242,"endHours":14.762123567209242,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:46","end":"15:46","startHours":14.762123567209242,"endHours":15.762123567209242,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:46","end":"16:46","startHours":15.762123567209242,"endHours":16.762123567209244,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:46","end":"17:46","startHours":16.762123567209244,"endHours":17.762123567209244,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:46","end":"18:46","startHours":17.762123567209244,"endHours":18.762123567209244,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:46","end":"19:46","startHours":18.762123567209244,"endHours":19.762123567209244,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:46","end":"20:46","startHours":19.762123567209244,"endHours":20.762123567209244,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:46","end":"21:46","startHours":20.762123567209244,"endHours":21.762123567209244,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:46","end":"22:46","startHours":21.762123567209244,"endHours":22.762123567209244,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:46","end":"23:46","startHours":22.762123567209244,"endHours":23.762123567209244,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:46","end":"00:46","startHours":23.762123567209244,"endHours":24.762123567209244,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:46","end":"01:46","startHours":24.762123567209244,"endHours":25.762123567209244,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:46","end":"02:46","startHours":25.762123567209244,"endHours":26.762123567209244,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:46","end":"03:46","startHours":26.762123567209244,"endHours":27.762123567209244,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:46","end":"04:46","startHours":27.762123567209244,"endHours":28.762123567209244,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:46","end":"05:46","startHours":28.762123567209244,"endHours":29.762123567209244,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:46","end":"06:46","startHours":29.762123567209244,"endHours":30.762123567209244,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.421530081038163,"eotMinutes":1.851917522468745,"ayanamsa":26.367}},"calendars":{"vikram_samvat":2236,"vikram_samvatsara":"Nandana","saka_samvat":2101,"saka_samvatsara":"Pramāthi","bengali_samvat":1586,"malayalam_era":1355,"nanakshahi_year":710,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","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":"Pauṣa Kṛṣṇa Saptamī · Vikram 2236 Nandana · Śaka 2101 Pramāthi"},"festivals":[],"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 20, 2179 CE · Ayodhyā · Vidhyamitra","description":"December 20, 2179 CE for Ayodhyā: Kṛṣṇa Saptamī, sūryodaya 06:46, sūryāsta 17:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2179-12-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2179-12-20","sa":"https://sa.vidhyamitra.com/city/ayodhya/2179-12-20","hi":"https://hi.vidhyamitra.com/city/ayodhya/2179-12-20","x-default":"https://vidhyamitra.com/city/ayodhya/2179-12-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T23:30:24.898Z","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":"2026-05-30T23:30:24.898Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T23:30:24.898Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}