{"id":"vidhyamitra:city-day:erode:1990-01-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1990-01-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-01-23","date_display":"January 23, 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":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447914.770833,"kali_year":5091,"ahargana":1859449.2708,"sun":{"sidereal_longitude":279.0262,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":233.6993,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":314.6731,"elapsed_within_tithi_degrees":2.6731},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":233.6993,"elapsed_within_degrees":7.0326},"yoga":{"number":12,"name":"Dhruva","sum_longitude":152.7255},"karana":{"half_tithi_index":52,"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":1990,"month":1,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447914.770833,"ahargana":1859449.2708,"kali_year":5091,"ayanamsa_lahiri":23.7142,"grahas":{"sun":{"sidereal_longitude":279.050612,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":234.63311199999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false,"latitude":-4.0344},"mars":{"sidereal_longitude":241.721312,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":256.53001199999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":68.987912,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":272.4096119999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":true},"saturn":{"sidereal_longitude":264.251812,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":297.4293,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":117.4293,"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":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447914.770833,"kali_year":5091,"ahargana":1859449.2708,"sun":{"sidereal_longitude":279.0262,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":233.6993,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":314.6731,"elapsed_within_tithi_degrees":2.6731},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":233.6993,"elapsed_within_degrees":7.0326},"yoga":{"number":12,"name":"Dhruva","sum_longitude":152.7255},"karana":{"half_tithi_index":52,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.034,"elongation":45.327},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.034,"opposition_distance":134.673}},"eclipse_window_40days":[{"offset_days":4,"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":"06:44","sunsetLocal":"18:18","solarNoonLocal":"12:31","dayLengthHours":11.576217812003671,"dayLengthDisplay":"11 Hours 34 Mins 34 Secs","nightLengthDisplay":"12 Hours 25 Mins 26 Secs","moonriseLocal":"03:50","moonsetLocal":"15:16","rahuKala":{"name":"Rāhu Kāla","start":"15:25","end":"16:51","startHours":15.409661079336212,"endHours":16.85668830583667,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:37","end":"11:04","startHours":9.621552173334376,"endHours":11.068579399834835,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:31","end":"13:58","startHours":12.515606626335295,"endHours":13.962633852835753,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:49","startHours":9.42861520980098,"endHours":9.81448913686777,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:13","end":"07:31","startHours":7.2098401291669445,"endHours":7.5185392708203755,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:08","end":"12:54","startHours":12.129732699268505,"endHours":12.901480553402084,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:11","end":"05:57","startHours":5.184002012066302,"endHours":5.955749866199881,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:46","end":"06:44","startHours":5.762812902666486,"endHours":6.727497720333458,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:27","end":"15:13","startHours":14.44497626166924,"endHours":15.216724115802817,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:06","end":"18:30","startHours":18.10371553233713,"endHours":18.50371553233713,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:18","end":"18:47","startHours":18.30371553233713,"endHours":18.786057941170615,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:03","end":"19:48","startHours":18.05371553233713,"endHours":19.80371553233713,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:08","end":"00:54","startHours":24.129732699268505,"endHours":24.901480553402084,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:44","end":"08:10","startHours":6.727497720333458,"endHours":8.174524946833918,"quality":"inauspicious"},{"name":"Udveg","start":"08:10","end":"09:37","startHours":8.174524946833918,"endHours":9.621552173334376,"quality":"inauspicious"},{"name":"Chala","start":"09:37","end":"11:04","startHours":9.621552173334376,"endHours":11.068579399834835,"quality":"neutral"},{"name":"Labha","start":"11:04","end":"12:31","startHours":11.068579399834835,"endHours":12.515606626335295,"quality":"auspicious"},{"name":"Amṛta","start":"12:31","end":"13:58","startHours":12.515606626335295,"endHours":13.962633852835753,"quality":"auspicious"},{"name":"Kāla","start":"13:58","end":"15:25","startHours":13.962633852835753,"endHours":15.409661079336212,"quality":"inauspicious"},{"name":"Śubha","start":"15:25","end":"16:51","startHours":15.409661079336212,"endHours":16.85668830583667,"quality":"auspicious"},{"name":"Roga","start":"16:51","end":"18:18","startHours":16.85668830583667,"endHours":18.30371553233713,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:18","end":"19:51","startHours":18.30371553233713,"endHours":19.85668830583667,"quality":"inauspicious"},{"name":"Śubha","start":"19:51","end":"21:25","startHours":19.85668830583667,"endHours":21.40966107933621,"quality":"auspicious"},{"name":"Roga","start":"21:25","end":"22:58","startHours":21.40966107933621,"endHours":22.96263385283575,"quality":"inauspicious"},{"name":"Udveg","start":"22:58","end":"00:31","startHours":22.96263385283575,"endHours":24.515606626335295,"quality":"inauspicious"},{"name":"Chala","start":"00:31","end":"02:04","startHours":24.515606626335295,"endHours":26.068579399834835,"quality":"neutral"},{"name":"Labha","start":"02:04","end":"03:37","startHours":26.068579399834835,"endHours":27.621552173334376,"quality":"auspicious"},{"name":"Amṛta","start":"03:37","end":"05:10","startHours":27.621552173334376,"endHours":29.17452494683392,"quality":"auspicious"},{"name":"Kāla","start":"05:10","end":"06:44","startHours":29.17452494683392,"endHours":30.72749772033346,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:44","end":"07:44","startHours":6.727497720333458,"endHours":7.727497720333458,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:44","end":"08:44","startHours":7.727497720333458,"endHours":8.727497720333458,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:44","end":"09:44","startHours":8.727497720333458,"endHours":9.727497720333458,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:44","end":"10:44","startHours":9.727497720333458,"endHours":10.727497720333458,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:44","end":"11:44","startHours":10.727497720333458,"endHours":11.727497720333458,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:44","end":"12:44","startHours":11.727497720333458,"endHours":12.727497720333458,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:44","end":"13:44","startHours":12.727497720333458,"endHours":13.727497720333458,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:44","end":"14:44","startHours":13.727497720333458,"endHours":14.727497720333458,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:44","end":"15:44","startHours":14.727497720333458,"endHours":15.727497720333458,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:44","end":"16:44","startHours":15.727497720333458,"endHours":16.72749772033346,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:44","end":"17:44","startHours":16.72749772033346,"endHours":17.72749772033346,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:44","end":"18:44","startHours":17.72749772033346,"endHours":18.72749772033346,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:44","end":"19:44","startHours":18.72749772033346,"endHours":19.72749772033346,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:44","end":"20:44","startHours":19.72749772033346,"endHours":20.72749772033346,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:44","end":"21:44","startHours":20.72749772033346,"endHours":21.72749772033346,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:44","end":"22:44","startHours":21.72749772033346,"endHours":22.72749772033346,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:44","end":"23:44","startHours":22.72749772033346,"endHours":23.72749772033346,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:44","end":"00:44","startHours":23.72749772033346,"endHours":24.72749772033346,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:44","end":"01:44","startHours":24.72749772033346,"endHours":25.72749772033346,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:44","end":"02:44","startHours":25.72749772033346,"endHours":26.72749772033346,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:44","end":"03:44","startHours":26.72749772033346,"endHours":27.72749772033346,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:44","end":"04:44","startHours":27.72749772033346,"endHours":28.72749772033346,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:44","end":"05:44","startHours":28.72749772033346,"endHours":29.72749772033346,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:44","end":"06:44","startHours":29.72749772033346,"endHours":30.72749772033346,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"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":"Cara","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-19.539271412427446,"eotMinutes":-11.805197580117738,"ayanamsa":23.7142}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Dvādaśī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","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 23, 1990 CE · Erode, Tamil Nadu · Vidhyamitra","description":"January 23, 1990 CE for Erode, Tamil Nadu: Kṛṣṇa Dvādaśī, sūryodaya 06:44, sūryāsta 18:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1990-01-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1990-01-23","sa":"https://sa.vidhyamitra.com/city/erode/1990-01-23","hi":"https://hi.vidhyamitra.com/city/erode/1990-01-23","x-default":"https://vidhyamitra.com/city/erode/1990-01-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T17:54:18.421Z","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":"2026-05-17T17:54:18.421Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T17:54:18.421Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}