{"id":"vidhyamitra:city-day:ayodhya:2107-12-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2107-12-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2107-12-13","date_display":"December 13, 2107 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":2107,"month":12,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2490971.770833,"kali_year":5209,"ahargana":1902506.2708,"sun":{"sidereal_longitude":234.317,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":218.3253,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":344.0083,"elapsed_within_tithi_degrees":8.0083},"nakshatra":{"number":17,"name":"Anurādhā","pada":2,"moon_longitude":218.3253,"elapsed_within_degrees":4.992},"yoga":{"number":7,"name":"Sukarma","sum_longitude":92.6422},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2107,"month":12,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2490971.770833,"ahargana":1902506.2708,"kali_year":5209,"ayanamsa_lahiri":25.3609,"grahas":{"sun":{"sidereal_longitude":234.99611800000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":217.51781800000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false,"latitude":3.0247},"mars":{"sidereal_longitude":150.33141799999999,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":246.01551799999993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":49.05821800000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":true},"venus":{"sidereal_longitude":269.57341799999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":260.28811799999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":176.0623,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":356.0623,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":2107,"month":12,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2490971.770833,"kali_year":5209,"ahargana":1902506.2708,"sun":{"sidereal_longitude":234.317,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":218.3253,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":344.0083,"elapsed_within_tithi_degrees":8.0083},"nakshatra":{"number":17,"name":"Anurādhā","pada":2,"moon_longitude":218.3253,"elapsed_within_degrees":4.992},"yoga":{"number":7,"name":"Sukarma","sum_longitude":92.6422},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.025,"elongation":15.992},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.025,"opposition_distance":164.008}},"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":"06:42","sunsetLocal":"17:11","solarNoonLocal":"11:56","dayLengthHours":10.480457608048546,"dayLengthDisplay":"10 Hours 28 Mins 50 Secs","nightLengthDisplay":"13 Hours 31 Mins 10 Secs","moonriseLocal":"05:27","moonsetLocal":"16:05","rahuKala":{"name":"Rāhu Kāla","start":"14:33","end":"15:52","startHours":14.555003564521835,"endHours":15.865060765527904,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:19","end":"10:37","startHours":9.314774760497562,"endHours":10.62483196150363,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:56","end":"13:15","startHours":11.934889162509698,"endHours":13.244946363515766,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:08","end":"09:29","startHours":9.140100467030086,"endHours":9.489449053965037,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:08","end":"07:25","startHours":7.131346092154114,"endHours":7.410824961702075,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:35","end":"12:17","startHours":11.585540575574747,"endHours":12.28423774944465,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:18","end":"06:00","startHours":5.297266010745619,"endHours":5.995963184615523,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:49","end":"06:42","startHours":5.821288891148046,"endHours":6.694660358485425,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:41","end":"14:23","startHours":13.681632097184455,"endHours":14.380329271054357,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:59","end":"17:23","startHours":16.975117966533972,"endHours":17.37511796653397,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:11","end":"17:37","startHours":17.17511796653397,"endHours":17.61180370020266,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:56","end":"18:41","startHours":16.92511796653397,"endHours":18.67511796653397,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:35","end":"00:17","startHours":23.585540575574747,"endHours":24.28423774944465,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:42","end":"08:00","startHours":6.694660358485425,"endHours":8.004717559491493,"quality":"inauspicious"},{"name":"Udveg","start":"08:00","end":"09:19","startHours":8.004717559491493,"endHours":9.314774760497562,"quality":"inauspicious"},{"name":"Chala","start":"09:19","end":"10:37","startHours":9.314774760497562,"endHours":10.62483196150363,"quality":"neutral"},{"name":"Labha","start":"10:37","end":"11:56","startHours":10.62483196150363,"endHours":11.934889162509698,"quality":"auspicious"},{"name":"Amṛta","start":"11:56","end":"13:15","startHours":11.934889162509698,"endHours":13.244946363515766,"quality":"auspicious"},{"name":"Kāla","start":"13:15","end":"14:33","startHours":13.244946363515766,"endHours":14.555003564521835,"quality":"inauspicious"},{"name":"Śubha","start":"14:33","end":"15:52","startHours":14.555003564521835,"endHours":15.865060765527904,"quality":"auspicious"},{"name":"Roga","start":"15:52","end":"17:11","startHours":15.865060765527904,"endHours":17.17511796653397,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:11","end":"18:52","startHours":17.17511796653397,"endHours":18.865060765527904,"quality":"inauspicious"},{"name":"Śubha","start":"18:52","end":"20:33","startHours":18.865060765527904,"endHours":20.555003564521833,"quality":"auspicious"},{"name":"Roga","start":"20:33","end":"22:15","startHours":20.555003564521833,"endHours":22.244946363515766,"quality":"inauspicious"},{"name":"Udveg","start":"22:15","end":"23:56","startHours":22.244946363515766,"endHours":23.9348891625097,"quality":"inauspicious"},{"name":"Chala","start":"23:56","end":"01:37","startHours":23.9348891625097,"endHours":25.62483196150363,"quality":"neutral"},{"name":"Labha","start":"01:37","end":"03:19","startHours":25.62483196150363,"endHours":27.314774760497563,"quality":"auspicious"},{"name":"Amṛta","start":"03:19","end":"05:00","startHours":27.314774760497563,"endHours":29.004717559491493,"quality":"auspicious"},{"name":"Kāla","start":"05:00","end":"06:42","startHours":29.004717559491493,"endHours":30.694660358485425,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:42","end":"07:42","startHours":6.694660358485425,"endHours":7.694660358485425,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:42","end":"08:42","startHours":7.694660358485425,"endHours":8.694660358485425,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:42","end":"09:42","startHours":8.694660358485425,"endHours":9.694660358485425,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:42","end":"10:42","startHours":9.694660358485425,"endHours":10.694660358485425,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:42","end":"11:42","startHours":10.694660358485425,"endHours":11.694660358485425,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:42","end":"12:42","startHours":11.694660358485425,"endHours":12.694660358485425,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:42","end":"13:42","startHours":12.694660358485425,"endHours":13.694660358485425,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:42","end":"14:42","startHours":13.694660358485425,"endHours":14.694660358485425,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:42","end":"15:42","startHours":14.694660358485425,"endHours":15.694660358485425,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:42","end":"16:42","startHours":15.694660358485425,"endHours":16.694660358485425,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:42","end":"17:42","startHours":16.694660358485425,"endHours":17.694660358485425,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:42","end":"18:42","startHours":17.694660358485425,"endHours":18.694660358485425,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:42","end":"19:42","startHours":18.694660358485425,"endHours":19.694660358485425,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:42","end":"20:42","startHours":19.694660358485425,"endHours":20.694660358485425,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:42","end":"21:42","startHours":20.694660358485425,"endHours":21.694660358485425,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:42","end":"22:42","startHours":21.694660358485425,"endHours":22.694660358485425,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:42","end":"23:42","startHours":22.694660358485425,"endHours":23.694660358485425,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:42","end":"00:42","startHours":23.694660358485425,"endHours":24.694660358485425,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:42","end":"01:42","startHours":24.694660358485425,"endHours":25.694660358485425,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:42","end":"02:42","startHours":25.694660358485425,"endHours":26.694660358485425,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:42","end":"03:42","startHours":26.694660358485425,"endHours":27.694660358485425,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:42","end":"04:42","startHours":27.694660358485425,"endHours":28.694660358485425,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:42","end":"05:42","startHours":28.694660358485425,"endHours":29.694660358485425,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:42","end":"06:42","startHours":29.694660358485425,"endHours":30.694660358485425,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"North-East","rahuVasa":"North","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.086025617430725,"eotMinutes":5.090650249418121,"ayanamsa":25.3609}},"calendars":{"vikram_samvat":2164,"vikram_samvatsara":"Vikrama","saka_samvat":2029,"saka_samvatsara":"Prabhava","bengali_samvat":1514,"malayalam_era":1283,"nanakshahi_year":638,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Kṛṣṇa Caturdaśī · Vikram 2164 Vikrama · Śaka 2029 Prabhava"},"festivals":[{"id":"vrischika-sankranti","name":"Vṛścika Saṅkrānti","name_sanskrit":"वृश्चिक सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Scorpio.","vrata":false,"detection":{"sun_rashi":"Vṛścika"},"precedence":5},{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 13, 2107 CE · Ayodhyā · Vidhyamitra","description":"December 13, 2107 CE for Ayodhyā: Kṛṣṇa Caturdaśī, sūryodaya 06:42, sūryāsta 17:11.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2107-12-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2107-12-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/2107-12-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/2107-12-13","x-default":"https://vidhyamitra.com/city/ayodhya/2107-12-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T22:18:01.311Z","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":"2026-05-16T22:18:01.311Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T22:18:01.311Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}