{"id":"vidhyamitra:city-day:erode:2020-12-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2020-12-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2020-12-12","date_display":"December 12, 2020 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":2020,"month":12,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459195.770833,"kali_year":5122,"ahargana":1870730.2708,"sun":{"sidereal_longitude":235.8665,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":201.7085,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":325.8421,"elapsed_within_tithi_degrees":1.8421},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":201.7085,"elapsed_within_degrees":1.7085},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":77.575},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2020,"month":12,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459195.770833,"ahargana":1870730.2708,"kali_year":5122,"ayanamsa_lahiri":24.1456,"grahas":{"sun":{"sidereal_longitude":236.32639500000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":199.938895,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false,"latitude":2.7687},"mars":{"sidereal_longitude":355.449095,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":231.49619499999994,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":274.248695,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":211.02779499999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":275.32009500000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":59.7077,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":239.7077,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"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":2020,"month":12,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459195.770833,"kali_year":5122,"ahargana":1870730.2708,"sun":{"sidereal_longitude":235.8665,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":201.7085,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":325.8421,"elapsed_within_tithi_degrees":1.8421},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":201.7085,"elapsed_within_degrees":1.7085},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":77.575},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.769,"elongation":34.158},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.769,"opposition_distance":145.842}},"eclipse_window_40days":[{"offset_days":18,"type":"lunar","occurs":true,"moon_latitude":1.091,"opposition_distance":1.549}]},"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":"06:30","sunsetLocal":"17:58","solarNoonLocal":"12:14","dayLengthHours":11.469359640246303,"dayLengthDisplay":"11 Hours 28 Mins 10 Secs","nightLengthDisplay":"12 Hours 31 Mins 50 Secs","moonriseLocal":"03:59","moonsetLocal":"15:37","rahuKala":{"name":"Rāhu Kāla","start":"09:22","end":"10:48","startHours":9.359155272253208,"endHours":10.792825227283995,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:40","end":"15:06","startHours":13.66016513734557,"endHours":15.09383509237636,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:30","end":"07:56","startHours":6.491815362191631,"endHours":7.925485317222419,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:10","end":"09:33","startHours":9.167999278249102,"endHours":9.550311266257312,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:58","end":"07:17","startHours":6.969705347201894,"endHours":7.2755549376084625,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:37","startHours":11.844183194306572,"endHours":12.608807170322992,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:58","end":"05:44","startHours":4.96256741015879,"endHours":5.727191386175211,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:32","end":"06:30","startHours":5.536035392171106,"endHours":6.491815362191631,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:54","startHours":14.138055122355834,"endHours":14.902679098372253,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:46","end":"18:10","startHours":17.761175002437934,"endHours":18.161175002437933,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:58","end":"18:26","startHours":17.961175002437933,"endHours":18.439064987448194,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:43","end":"19:28","startHours":17.711175002437933,"endHours":19.461175002437933,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:37","startHours":23.84418319430657,"endHours":24.608807170322994,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:30","end":"07:56","startHours":6.491815362191631,"endHours":7.925485317222419,"quality":"inauspicious"},{"name":"Śubha","start":"07:56","end":"09:22","startHours":7.925485317222419,"endHours":9.359155272253208,"quality":"auspicious"},{"name":"Roga","start":"09:22","end":"10:48","startHours":9.359155272253208,"endHours":10.792825227283995,"quality":"inauspicious"},{"name":"Udveg","start":"10:48","end":"12:14","startHours":10.792825227283995,"endHours":12.226495182314782,"quality":"inauspicious"},{"name":"Chala","start":"12:14","end":"13:40","startHours":12.226495182314782,"endHours":13.66016513734557,"quality":"neutral"},{"name":"Labha","start":"13:40","end":"15:06","startHours":13.66016513734557,"endHours":15.09383509237636,"quality":"auspicious"},{"name":"Amṛta","start":"15:06","end":"16:32","startHours":15.09383509237636,"endHours":16.527505047407146,"quality":"auspicious"},{"name":"Kāla","start":"16:32","end":"17:58","startHours":16.527505047407146,"endHours":17.961175002437933,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:58","end":"19:32","startHours":17.961175002437933,"endHours":19.527505047407146,"quality":"auspicious"},{"name":"Amṛta","start":"19:32","end":"21:06","startHours":19.527505047407146,"endHours":21.09383509237636,"quality":"auspicious"},{"name":"Kāla","start":"21:06","end":"22:40","startHours":21.09383509237636,"endHours":22.66016513734557,"quality":"inauspicious"},{"name":"Śubha","start":"22:40","end":"00:14","startHours":22.66016513734557,"endHours":24.226495182314782,"quality":"auspicious"},{"name":"Roga","start":"00:14","end":"01:48","startHours":24.226495182314782,"endHours":25.792825227283995,"quality":"inauspicious"},{"name":"Udveg","start":"01:48","end":"03:22","startHours":25.792825227283995,"endHours":27.359155272253204,"quality":"inauspicious"},{"name":"Chala","start":"03:22","end":"04:56","startHours":27.359155272253204,"endHours":28.925485317222417,"quality":"neutral"},{"name":"Labha","start":"04:56","end":"06:30","startHours":28.925485317222417,"endHours":30.49181536219163,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:30","end":"07:30","startHours":6.491815362191631,"endHours":7.491815362191631,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:30","end":"08:30","startHours":7.491815362191631,"endHours":8.49181536219163,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:30","end":"09:30","startHours":8.49181536219163,"endHours":9.49181536219163,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:30","end":"10:30","startHours":9.49181536219163,"endHours":10.49181536219163,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:30","end":"11:30","startHours":10.49181536219163,"endHours":11.49181536219163,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:30","end":"12:30","startHours":11.49181536219163,"endHours":12.49181536219163,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:30","end":"13:30","startHours":12.49181536219163,"endHours":13.49181536219163,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:30","end":"14:30","startHours":13.49181536219163,"endHours":14.49181536219163,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:30","end":"15:30","startHours":14.49181536219163,"endHours":15.49181536219163,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:30","end":"16:30","startHours":15.49181536219163,"endHours":16.49181536219163,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:30","end":"17:30","startHours":16.49181536219163,"endHours":17.49181536219163,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:30","end":"18:30","startHours":17.49181536219163,"endHours":18.49181536219163,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:30","end":"19:30","startHours":18.49181536219163,"endHours":19.49181536219163,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:30","end":"20:30","startHours":19.49181536219163,"endHours":20.49181536219163,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:30","end":"21:30","startHours":20.49181536219163,"endHours":21.49181536219163,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:30","end":"22:30","startHours":21.49181536219163,"endHours":22.49181536219163,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:30","end":"23:30","startHours":22.49181536219163,"endHours":23.49181536219163,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:30","end":"00:30","startHours":23.49181536219163,"endHours":24.49181536219163,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:30","end":"01:30","startHours":24.49181536219163,"endHours":25.49181536219163,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:30","end":"02:30","startHours":25.49181536219163,"endHours":26.49181536219163,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:30","end":"03:30","startHours":26.49181536219163,"endHours":27.49181536219163,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:30","end":"04:30","startHours":27.49181536219163,"endHours":28.49181536219163,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:30","end":"05:30","startHours":28.49181536219163,"endHours":29.49181536219163,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:30","end":"06:30","startHours":29.49181536219163,"endHours":30.49181536219163,"planetary_lord":"Mercury"}],"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","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"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":-23.094303717054537,"eotMinutes":5.541489061113115,"ayanamsa":24.1456}},"calendars":{"vikram_samvat":2077,"vikram_samvatsara":"Pramādī","saka_samvat":1942,"saka_samvatsara":"Śārvarī","bengali_samvat":1427,"malayalam_era":1196,"nanakshahi_year":551,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Kṛṣṇa Trayodaśī · Vikram 2077 Pramādī · Śaka 1942 Śārvarī"},"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":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"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 12, 2020 CE · Erode, Tamil Nadu · Vidhyamitra","description":"December 12, 2020 CE for Erode, Tamil Nadu: Kṛṣṇa Trayodaśī, sūryodaya 06:30, sūryāsta 17:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2020-12-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2020-12-12","sa":"https://sa.vidhyamitra.com/city/erode/2020-12-12","hi":"https://hi.vidhyamitra.com/city/erode/2020-12-12","x-default":"https://vidhyamitra.com/city/erode/2020-12-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T01:40:18.205Z","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":"2026-05-15T01:40:18.205Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T01:40:18.205Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}