{"id":"vidhyamitra:city-day:erode:1990-01-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1990-01-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-01-11","date_display":"January 11, 1990 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":1990,"month":1,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447902.770833,"kali_year":5091,"ahargana":1859437.2708,"sun":{"sidereal_longitude":266.7099,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":86.1624,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":179.4525,"elapsed_within_tithi_degrees":11.4525},"nakshatra":{"number":7,"name":"Punarvasu","pada":2,"moon_longitude":86.1624,"elapsed_within_degrees":6.1624},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":352.8723},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1990,"month":1,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447902.770833,"ahargana":1859437.2708,"kali_year":5091,"ayanamsa_lahiri":23.7137,"grahas":{"sun":{"sidereal_longitude":266.8323700000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":84.62077,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false,"latitude":2.3764},"mars":{"sidereal_longitude":233.16417,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":262.31907,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":70.36067000000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":279.49697000000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":262.8432700000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":298.0652,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":118.0652,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":1990,"month":1,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447902.770833,"kali_year":5091,"ahargana":1859437.2708,"sun":{"sidereal_longitude":266.7099,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":86.1624,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":179.4525,"elapsed_within_tithi_degrees":11.4525},"nakshatra":{"number":7,"name":"Punarvasu","pada":2,"moon_longitude":86.1624,"elapsed_within_degrees":6.1624},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":352.8723},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.376,"elongation":179.453},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.376,"opposition_distance":0.547}},"eclipse_window_40days":[{"offset_days":16,"type":"solar","occurs":true,"moon_latitude":-0.956,"elongation":1.82}]},"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":"06:42","sunsetLocal":"18:12","solarNoonLocal":"12:27","dayLengthHours":11.506838181309888,"dayLengthDisplay":"11 Hours 30 Mins 25 Secs","nightLengthDisplay":"12 Hours 29 Mins 35 Secs","moonriseLocal":"17:57","moonsetLocal":"06:40","rahuKala":{"name":"Rāhu Kāla","start":"13:53","end":"15:20","startHours":13.88864980991318,"endHours":15.327004582576915,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:42","end":"08:08","startHours":6.6968759465945,"endHours":8.135230719258235,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:34","end":"11:01","startHours":9.573585491921971,"endHours":11.011940264585707,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:23","end":"09:46","startHours":9.381804855566807,"endHours":9.765366128277137,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:11","end":"07:29","startHours":7.176327537482412,"endHours":7.483176555650676,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:50","startHours":12.066733764539114,"endHours":12.833856309959772,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:10","end":"05:56","startHours":5.162630855753182,"endHours":5.929753401173841,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:44","end":"06:42","startHours":5.737972764818676,"endHours":6.6968759465945,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:08","startHours":14.368101400801091,"endHours":15.13522394622175,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:00","end":"18:24","startHours":18.003714127904388,"endHours":18.403714127904387,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:12","end":"18:41","startHours":18.203714127904387,"endHours":18.6831657187923,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:57","end":"19:42","startHours":17.953714127904387,"endHours":19.703714127904387,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:50","startHours":24.066733764539112,"endHours":24.833856309959774,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:42","end":"08:08","startHours":6.6968759465945,"endHours":8.135230719258235,"quality":"auspicious"},{"name":"Roga","start":"08:08","end":"09:34","startHours":8.135230719258235,"endHours":9.573585491921971,"quality":"inauspicious"},{"name":"Udveg","start":"09:34","end":"11:01","startHours":9.573585491921971,"endHours":11.011940264585707,"quality":"inauspicious"},{"name":"Chala","start":"11:01","end":"12:27","startHours":11.011940264585707,"endHours":12.450295037249443,"quality":"neutral"},{"name":"Labha","start":"12:27","end":"13:53","startHours":12.450295037249443,"endHours":13.88864980991318,"quality":"auspicious"},{"name":"Amṛta","start":"13:53","end":"15:20","startHours":13.88864980991318,"endHours":15.327004582576915,"quality":"auspicious"},{"name":"Kāla","start":"15:20","end":"16:46","startHours":15.327004582576915,"endHours":16.76535935524065,"quality":"inauspicious"},{"name":"Śubha","start":"16:46","end":"18:12","startHours":16.76535935524065,"endHours":18.203714127904387,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:12","end":"19:46","startHours":18.203714127904387,"endHours":19.76535935524065,"quality":"auspicious"},{"name":"Kāla","start":"19:46","end":"21:20","startHours":19.76535935524065,"endHours":21.327004582576915,"quality":"inauspicious"},{"name":"Śubha","start":"21:20","end":"22:53","startHours":21.327004582576915,"endHours":22.88864980991318,"quality":"auspicious"},{"name":"Roga","start":"22:53","end":"00:27","startHours":22.88864980991318,"endHours":24.450295037249443,"quality":"inauspicious"},{"name":"Udveg","start":"00:27","end":"02:01","startHours":24.450295037249443,"endHours":26.011940264585707,"quality":"inauspicious"},{"name":"Chala","start":"02:01","end":"03:34","startHours":26.011940264585707,"endHours":27.57358549192197,"quality":"neutral"},{"name":"Labha","start":"03:34","end":"05:08","startHours":27.57358549192197,"endHours":29.135230719258235,"quality":"auspicious"},{"name":"Amṛta","start":"05:08","end":"06:42","startHours":29.135230719258235,"endHours":30.6968759465945,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:42","end":"07:42","startHours":6.6968759465945,"endHours":7.6968759465945,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:42","end":"08:42","startHours":7.6968759465945,"endHours":8.6968759465945,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:42","end":"09:42","startHours":8.6968759465945,"endHours":9.6968759465945,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:42","end":"10:42","startHours":9.6968759465945,"endHours":10.6968759465945,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:42","end":"11:42","startHours":10.6968759465945,"endHours":11.6968759465945,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:42","end":"12:42","startHours":11.6968759465945,"endHours":12.6968759465945,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:42","end":"13:42","startHours":12.6968759465945,"endHours":13.6968759465945,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:42","end":"14:42","startHours":13.6968759465945,"endHours":14.6968759465945,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:42","end":"15:42","startHours":14.6968759465945,"endHours":15.6968759465945,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:42","end":"16:42","startHours":15.6968759465945,"endHours":16.6968759465945,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:42","end":"17:42","startHours":16.6968759465945,"endHours":17.6968759465945,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:42","end":"18:42","startHours":17.6968759465945,"endHours":18.6968759465945,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:42","end":"19:42","startHours":18.6968759465945,"endHours":19.6968759465945,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:42","end":"20:42","startHours":19.6968759465945,"endHours":20.6968759465945,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:42","end":"21:42","startHours":20.6968759465945,"endHours":21.6968759465945,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:42","end":"22:42","startHours":21.6968759465945,"endHours":22.6968759465945,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:42","end":"23:42","startHours":22.6968759465945,"endHours":23.6968759465945,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:42","end":"00:42","startHours":23.6968759465945,"endHours":24.6968759465945,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:42","end":"01:42","startHours":24.6968759465945,"endHours":25.6968759465945,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:42","end":"02:42","startHours":25.6968759465945,"endHours":26.6968759465945,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:42","end":"03:42","startHours":26.6968759465945,"endHours":27.6968759465945,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:42","end":"04:42","startHours":27.6968759465945,"endHours":28.6968759465945,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:42","end":"05:42","startHours":28.6968759465945,"endHours":29.6968759465945,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:42","end":"06:42","startHours":29.6968759465945,"endHours":30.6968759465945,"planetary_lord":"Moon"}],"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","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South","rahuVasa":"North-West","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-21.86573381808782,"eotMinutes":-7.886502234966622,"ayanamsa":23.7137}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Pūrṇimā · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[{"id":"paush-purnima","name":"Pauṣa Pūrṇimā (Śākambharī Devī Jayantī)","name_sanskrit":"पौष पूर्णिमा","tradition":"Pan-Hindu","associated_deity":"Devī Śākambharī","significance":"Manifestation of Devī Śākambharī (vegetation-mother).","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Pauṣa"},"precedence":3},{"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":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","url":"/day/-1626101-04-03","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","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 January 11, 1990 CE · Erode, Tamil Nadu · Vidhyamitra","description":"January 11, 1990 CE for Erode, Tamil Nadu: Śukla Pūrṇimā, sūryodaya 06:42, sūryāsta 18:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1990-01-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1990-01-11","sa":"https://sa.vidhyamitra.com/city/erode/1990-01-11","hi":"https://hi.vidhyamitra.com/city/erode/1990-01-11","x-default":"https://vidhyamitra.com/city/erode/1990-01-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T21:54:22.779Z","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":"2026-05-17T21:54:22.779Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T21:54:22.779Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}