{"id":"vidhyamitra:city-day:erode:2107-12-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2107-12-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2107-12-20","date_display":"December 20, 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":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2490978.770833,"kali_year":5209,"ahargana":1902513.2708,"sun":{"sidereal_longitude":241.4966,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":307.2156,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":65.7189,"elapsed_within_tithi_degrees":5.7189},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":307.2156,"elapsed_within_degrees":0.5489},"yoga":{"number":15,"name":"Vajra","sum_longitude":188.7122},"karana":{"half_tithi_index":10,"name":"Kaulava"},"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":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2490978.770833,"ahargana":1902513.2708,"kali_year":5209,"ayanamsa_lahiri":25.3612,"grahas":{"sun":{"sidereal_longitude":242.11505,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":305.26395,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false,"latitude":3.3675},"mars":{"sidereal_longitude":153.56335,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":256.71655,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":48.123249999999985,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":true},"venus":{"sidereal_longitude":278.08805000000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":261.07295,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":175.6914,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":355.6914,"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":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2490978.770833,"kali_year":5209,"ahargana":1902513.2708,"sun":{"sidereal_longitude":241.4966,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":307.2156,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":65.7189,"elapsed_within_tithi_degrees":5.7189},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":307.2156,"elapsed_within_degrees":0.5489},"yoga":{"number":15,"name":"Vajra","sum_longitude":188.7122},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.368,"elongation":65.719},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.368,"opposition_distance":114.281}},"eclipse_window_40days":[]},"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"sunriseLocal":"06:33","sunsetLocal":"18:01","solarNoonLocal":"12:17","dayLengthHours":11.45955212399471,"dayLengthDisplay":"11 Hours 27 Mins 34 Secs","nightLengthDisplay":"12 Hours 32 Mins 26 Secs","moonriseLocal":"10:37","moonsetLocal":"22:23","rahuKala":{"name":"Rāhu Kāla","start":"15:09","end":"16:35","startHours":15.152876072290866,"endHours":16.585320087790205,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:25","end":"10:51","startHours":9.423100010293512,"endHours":10.855544025792849,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:17","end":"13:43","startHours":12.287988041292188,"endHours":13.720432056791527,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:14","end":"09:37","startHours":9.2321074748936,"endHours":9.614092545693424,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:02","end":"07:20","startHours":7.035693317794613,"endHours":7.341281374434472,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:40","startHours":11.906002970492365,"endHours":12.669973112092011,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:02","end":"05:48","startHours":5.030271696095539,"endHours":5.7942418376951865,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:36","end":"06:33","startHours":5.603249302295275,"endHours":6.558211979294834,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:12","end":"14:58","startHours":14.197913395291307,"endHours":14.961883536890955,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:49","end":"18:13","startHours":17.817764103289544,"endHours":18.217764103289543,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:01","end":"18:30","startHours":18.017764103289544,"endHours":18.495245441789322,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:46","end":"19:31","startHours":17.767764103289544,"endHours":19.517764103289544,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:40","startHours":23.906002970492363,"endHours":24.669973112092013,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:33","end":"07:59","startHours":6.558211979294834,"endHours":7.990655994794173,"quality":"inauspicious"},{"name":"Udveg","start":"07:59","end":"09:25","startHours":7.990655994794173,"endHours":9.423100010293512,"quality":"inauspicious"},{"name":"Chala","start":"09:25","end":"10:51","startHours":9.423100010293512,"endHours":10.855544025792849,"quality":"neutral"},{"name":"Labha","start":"10:51","end":"12:17","startHours":10.855544025792849,"endHours":12.287988041292188,"quality":"auspicious"},{"name":"Amṛta","start":"12:17","end":"13:43","startHours":12.287988041292188,"endHours":13.720432056791527,"quality":"auspicious"},{"name":"Kāla","start":"13:43","end":"15:09","startHours":13.720432056791527,"endHours":15.152876072290866,"quality":"inauspicious"},{"name":"Śubha","start":"15:09","end":"16:35","startHours":15.152876072290866,"endHours":16.585320087790205,"quality":"auspicious"},{"name":"Roga","start":"16:35","end":"18:01","startHours":16.585320087790205,"endHours":18.017764103289544,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:01","end":"19:35","startHours":18.017764103289544,"endHours":19.585320087790205,"quality":"inauspicious"},{"name":"Śubha","start":"19:35","end":"21:09","startHours":19.585320087790205,"endHours":21.152876072290866,"quality":"auspicious"},{"name":"Roga","start":"21:09","end":"22:43","startHours":21.152876072290866,"endHours":22.720432056791527,"quality":"inauspicious"},{"name":"Udveg","start":"22:43","end":"00:17","startHours":22.720432056791527,"endHours":24.287988041292188,"quality":"inauspicious"},{"name":"Chala","start":"00:17","end":"01:51","startHours":24.287988041292188,"endHours":25.85554402579285,"quality":"neutral"},{"name":"Labha","start":"01:51","end":"03:25","startHours":25.85554402579285,"endHours":27.42310001029351,"quality":"auspicious"},{"name":"Amṛta","start":"03:25","end":"04:59","startHours":27.42310001029351,"endHours":28.990655994794174,"quality":"auspicious"},{"name":"Kāla","start":"04:59","end":"06:33","startHours":28.990655994794174,"endHours":30.558211979294832,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:33","end":"07:33","startHours":6.558211979294834,"endHours":7.558211979294834,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:33","end":"08:33","startHours":7.558211979294834,"endHours":8.558211979294834,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:33","end":"09:33","startHours":8.558211979294834,"endHours":9.558211979294834,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:33","end":"10:33","startHours":9.558211979294834,"endHours":10.558211979294834,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:33","end":"11:33","startHours":10.558211979294834,"endHours":11.558211979294834,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:33","end":"12:33","startHours":11.558211979294834,"endHours":12.558211979294834,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:33","end":"13:33","startHours":12.558211979294834,"endHours":13.558211979294834,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:33","end":"14:33","startHours":13.558211979294834,"endHours":14.558211979294834,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:33","end":"15:33","startHours":14.558211979294834,"endHours":15.558211979294834,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:33","end":"16:33","startHours":15.558211979294834,"endHours":16.558211979294832,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:33","end":"17:33","startHours":16.558211979294832,"endHours":17.558211979294832,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:33","end":"18:33","startHours":17.558211979294832,"endHours":18.558211979294832,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:33","end":"19:33","startHours":18.558211979294832,"endHours":19.558211979294832,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:33","end":"20:33","startHours":19.558211979294832,"endHours":20.558211979294832,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:33","end":"21:33","startHours":20.558211979294832,"endHours":21.558211979294832,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:33","end":"22:33","startHours":21.558211979294832,"endHours":22.558211979294832,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:33","end":"23:33","startHours":22.558211979294832,"endHours":23.558211979294832,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:33","end":"00:33","startHours":23.558211979294832,"endHours":24.558211979294832,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:33","end":"01:33","startHours":24.558211979294832,"endHours":25.558211979294832,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:33","end":"02:33","startHours":25.558211979294832,"endHours":26.558211979294832,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:33","end":"03:33","startHours":26.558211979294832,"endHours":27.558211979294832,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:33","end":"04:33","startHours":27.558211979294832,"endHours":28.558211979294832,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:33","end":"05:33","startHours":28.558211979294832,"endHours":29.558211979294832,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:33","end":"06:33","startHours":29.558211979294832,"endHours":30.558211979294832,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"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":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Prajāpati","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":-23.41241123477125,"eotMinutes":1.851917522468745,"ayanamsa":25.3612}},"calendars":{"vikram_samvat":2164,"vikram_samvatsara":"Vikrama","saka_samvat":2029,"saka_samvatsara":"Prabhava","bengali_samvat":1514,"malayalam_era":1283,"nanakshahi_year":638,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Ṣaṣṭhī · Vikram 2164 Vikrama · Śaka 2029 Prabhava"},"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":"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":"erode"},"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, 2107 CE · Erode, Tamil Nadu · Vidhyamitra","description":"December 20, 2107 CE for Erode, Tamil Nadu: Śukla Ṣaṣṭhī, sūryodaya 06:33, sūryāsta 18:01.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2107-12-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2107-12-20","sa":"https://sa.vidhyamitra.com/city/erode/2107-12-20","hi":"https://hi.vidhyamitra.com/city/erode/2107-12-20","x-default":"https://vidhyamitra.com/city/erode/2107-12-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T04:58:04.782Z","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":"2026-05-21T04:58:04.782Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T04:58:04.782Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}