{"id":"vidhyamitra:city-day:erode:1986-12-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1986-12-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1986-12-12","date_display":"December 12, 1986 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":1986,"month":12,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446776.770833,"kali_year":5088,"ahargana":1858311.2708,"sun":{"sidereal_longitude":235.6591,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":7.0512,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":131.3921,"elapsed_within_tithi_degrees":11.3921},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":7.0512,"elapsed_within_degrees":7.0512},"yoga":{"number":19,"name":"Parigha","sum_longitude":242.7103},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1986,"month":12,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446776.770833,"ahargana":1858311.2708,"kali_year":5088,"ayanamsa_lahiri":23.6706,"grahas":{"sun":{"sidereal_longitude":236.04049199999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":9.258991999999978,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false,"latitude":0.7284},"mars":{"sidereal_longitude":317.349692,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":219.30179199999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":321.94679199999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":195.936692,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":229.046292,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":357.7261,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":177.7261,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"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":1986,"month":12,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446776.770833,"kali_year":5088,"ahargana":1858311.2708,"sun":{"sidereal_longitude":235.6591,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":7.0512,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":131.3921,"elapsed_within_tithi_degrees":11.3921},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":7.0512,"elapsed_within_degrees":7.0512},"yoga":{"number":19,"name":"Parigha","sum_longitude":242.7103},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.728,"elongation":131.392},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.728,"opposition_distance":48.608}},"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":"06:29","sunsetLocal":"17:58","solarNoonLocal":"12:14","dayLengthHours":11.47110010510604,"dayLengthDisplay":"11 Hours 28 Mins 16 Secs","nightLengthDisplay":"12 Hours 31 Mins 44 Secs","moonriseLocal":"14:54","moonsetLocal":"03:19","rahuKala":{"name":"Rāhu Kāla","start":"10:48","end":"12:14","startHours":10.792607669176526,"endHours":12.226495182314782,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:06","end":"16:32","startHours":15.094270208591292,"endHours":16.528157721729546,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:55","end":"09:22","startHours":7.924832642900017,"endHours":9.358720156038272,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:10","end":"09:33","startHours":9.167535154286504,"endHours":9.54990515779004,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:58","end":"07:16","startHours":6.96890763414118,"endHours":7.274803636944008,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:37","startHours":11.844125178811247,"endHours":12.608865185818317,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:58","end":"05:44","startHours":4.9614651157476235,"endHours":5.726205122754693,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:32","end":"06:29","startHours":5.535020121002925,"endHours":6.490945129761762,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:54","startHours":14.138345199832454,"endHours":14.903085206839522,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:46","end":"18:10","startHours":17.762045234867802,"endHours":18.1620452348678,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:58","end":"18:26","startHours":17.9620452348678,"endHours":18.44000773924722,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:43","end":"19:28","startHours":17.7120452348678,"endHours":19.4620452348678,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:37","startHours":23.844125178811247,"endHours":24.608865185818317,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:29","end":"07:55","startHours":6.490945129761762,"endHours":7.924832642900017,"quality":"neutral"},{"name":"Labha","start":"07:55","end":"09:22","startHours":7.924832642900017,"endHours":9.358720156038272,"quality":"auspicious"},{"name":"Amṛta","start":"09:22","end":"10:48","startHours":9.358720156038272,"endHours":10.792607669176526,"quality":"auspicious"},{"name":"Kāla","start":"10:48","end":"12:14","startHours":10.792607669176526,"endHours":12.226495182314782,"quality":"inauspicious"},{"name":"Śubha","start":"12:14","end":"13:40","startHours":12.226495182314782,"endHours":13.660382695453038,"quality":"auspicious"},{"name":"Roga","start":"13:40","end":"15:06","startHours":13.660382695453038,"endHours":15.094270208591292,"quality":"inauspicious"},{"name":"Udveg","start":"15:06","end":"16:32","startHours":15.094270208591292,"endHours":16.528157721729546,"quality":"inauspicious"},{"name":"Chala","start":"16:32","end":"17:58","startHours":16.528157721729546,"endHours":17.9620452348678,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:58","end":"19:32","startHours":17.9620452348678,"endHours":19.528157721729546,"quality":"inauspicious"},{"name":"Udveg","start":"19:32","end":"21:06","startHours":19.528157721729546,"endHours":21.09427020859129,"quality":"inauspicious"},{"name":"Chala","start":"21:06","end":"22:40","startHours":21.09427020859129,"endHours":22.660382695453038,"quality":"neutral"},{"name":"Labha","start":"22:40","end":"00:14","startHours":22.660382695453038,"endHours":24.226495182314782,"quality":"auspicious"},{"name":"Amṛta","start":"00:14","end":"01:48","startHours":24.226495182314782,"endHours":25.792607669176526,"quality":"auspicious"},{"name":"Kāla","start":"01:48","end":"03:22","startHours":25.792607669176526,"endHours":27.358720156038274,"quality":"inauspicious"},{"name":"Śubha","start":"03:22","end":"04:55","startHours":27.358720156038274,"endHours":28.924832642900018,"quality":"auspicious"},{"name":"Roga","start":"04:55","end":"06:29","startHours":28.924832642900018,"endHours":30.490945129761762,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:29","end":"07:29","startHours":6.490945129761762,"endHours":7.490945129761762,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:29","end":"08:29","startHours":7.490945129761762,"endHours":8.490945129761762,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:29","end":"09:29","startHours":8.490945129761762,"endHours":9.490945129761762,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:29","end":"10:29","startHours":9.490945129761762,"endHours":10.490945129761762,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:29","end":"11:29","startHours":10.490945129761762,"endHours":11.490945129761762,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:29","end":"12:29","startHours":11.490945129761762,"endHours":12.490945129761762,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:29","end":"13:29","startHours":12.490945129761762,"endHours":13.490945129761762,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:29","end":"14:29","startHours":13.490945129761762,"endHours":14.490945129761762,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:29","end":"15:29","startHours":14.490945129761762,"endHours":15.490945129761762,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:29","end":"16:29","startHours":15.490945129761762,"endHours":16.490945129761762,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:29","end":"17:29","startHours":16.490945129761762,"endHours":17.490945129761762,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:29","end":"18:29","startHours":17.490945129761762,"endHours":18.490945129761762,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:29","end":"19:29","startHours":18.490945129761762,"endHours":19.490945129761762,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:29","end":"20:29","startHours":19.490945129761762,"endHours":20.490945129761762,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:29","end":"21:29","startHours":20.490945129761762,"endHours":21.490945129761762,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:29","end":"22:29","startHours":21.490945129761762,"endHours":22.490945129761762,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:29","end":"23:29","startHours":22.490945129761762,"endHours":23.490945129761762,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:29","end":"00:29","startHours":23.490945129761762,"endHours":24.490945129761762,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:29","end":"01:29","startHours":24.490945129761762,"endHours":25.490945129761762,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:29","end":"02:29","startHours":25.490945129761762,"endHours":26.490945129761762,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:29","end":"03:29","startHours":26.490945129761762,"endHours":27.490945129761762,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:29","end":"04:29","startHours":27.490945129761762,"endHours":28.490945129761762,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:29","end":"05:29","startHours":28.490945129761762,"endHours":29.490945129761762,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:29","end":"06:29","startHours":29.490945129761762,"endHours":30.490945129761762,"planetary_lord":"Mars"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.03770321497824,"eotMinutes":5.541489061113115,"ayanamsa":23.6706}},"calendars":{"vikram_samvat":2043,"vikram_samvatsara":"Pramāthi","saka_samvat":1908,"saka_samvatsara":"Akṣaya","bengali_samvat":1393,"malayalam_era":1162,"nanakshahi_year":517,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Ekādaśī · Vikram 2043 Pramāthi · Śaka 1908 Akṣaya"},"festivals":[{"id":"gita-jayanti","name":"Gītā Jayantī (= Mokṣadā Ekādaśī)","name_sanskrit":"गीता जयन्ती","tradition":"Vaishnava","associated_deity":"Krishna (Bhagavad-Gītā speaker)","significance":"Day Bhagavad Gītā was delivered at Kurukṣetra (Mahābhārata Day 1).","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":1,"related_chart":"krishna","historical_anchor":{"event":"Bhagavad Gītā delivered at Kurukṣetra (Mahābhārata Day 1)","date_julian":"-3137-10-04","location":"Kurukṣetra"},"sources":["Bhagavad Gītā (Mahābhārata, Bhīṣma Parva)"]},{"id":"vaikuntha-ekadashi","name":"Vaikuṇṭha Ekādaśī","name_sanskrit":"वैकुण्ठ एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Most sacred Ekādaśī of the year; 'Vaikuṇṭha-dvāram udghaṭitam'.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":2},{"id":"mokshada-ekadashi","name":"Mokṣadā Ekādaśī (Gītā Jayantī)","name_sanskrit":"मोक्षदा एकादशी / गीता जयन्ती","tradition":"Vaishnava","associated_deity":"Krishna (Bhagavad Gītā delivery)","significance":"Day Bhagavad Gītā was delivered at Kurukṣetra.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":3},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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, 1986 CE · Erode, Tamil Nadu · Vidhyamitra","description":"December 12, 1986 CE for Erode, Tamil Nadu: Śukla Ekādaśī, sūryodaya 06:29, sūryāsta 17:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1986-12-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1986-12-12","sa":"https://sa.vidhyamitra.com/city/erode/1986-12-12","hi":"https://hi.vidhyamitra.com/city/erode/1986-12-12","x-default":"https://vidhyamitra.com/city/erode/1986-12-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T02:38:43.690Z","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":"2026-05-31T02:38:43.690Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T02:38:43.690Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}