{"id":"vidhyamitra:city-day:erode:1958-01-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1958-01-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1958-01-20","date_display":"January 20, 1958 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":1958,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436223.770833,"kali_year":5059,"ahargana":1847758.2708,"sun":{"sidereal_longitude":276.2377,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":279.3626,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":3.125,"elapsed_within_tithi_degrees":3.125},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":279.3626,"elapsed_within_degrees":12.696},"yoga":{"number":15,"name":"Vajra","sum_longitude":195.6003},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1958,"month":1,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2436223.770833,"ahargana":1847758.2708,"kali_year":5059,"ayanamsa_lahiri":23.267,"grahas":{"sun":{"sidereal_longitude":276.208794,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":277.46679399999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false,"latitude":4.4613},"mars":{"sidereal_longitude":236.88309400000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":253.16289400000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":187.598794,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":290.62569400000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":238.65229399999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":196.8748,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":16.8748,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":1958,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436223.770833,"kali_year":5059,"ahargana":1847758.2708,"sun":{"sidereal_longitude":276.2377,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":279.3626,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":3.125,"elapsed_within_tithi_degrees":3.125},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":279.3626,"elapsed_within_degrees":12.696},"yoga":{"number":15,"name":"Vajra","sum_longitude":195.6003},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.461,"elongation":3.125},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.461,"opposition_distance":176.875}},"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":"06:43","sunsetLocal":"18:17","solarNoonLocal":"12:30","dayLengthHours":11.554985619088669,"dayLengthDisplay":"11 Hours 33 Mins 18 Secs","nightLengthDisplay":"12 Hours 26 Mins 42 Secs","moonriseLocal":"06:49","moonsetLocal":"18:21","rahuKala":{"name":"Rāhu Kāla","start":"08:10","end":"09:37","startHours":8.168472115128907,"endHours":9.612845317514989,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:03","end":"12:30","startHours":11.057218519901074,"endHours":12.501591722287156,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:57","end":"15:23","startHours":13.945964924673241,"endHours":15.390338127059323,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:25","end":"09:48","startHours":9.420262223863512,"endHours":9.805428411166467,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:12","end":"07:31","startHours":7.205556646871517,"endHours":7.513689596713881,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:07","end":"12:53","startHours":12.1164255349842,"endHours":12.886757909590111,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:11","end":"05:57","startHours":5.183434163531,"endHours":5.953766538136911,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:46","end":"06:43","startHours":5.761183444485433,"endHours":6.724098912742822,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:12","startHours":14.427422658801934,"endHours":15.197755033407844,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:05","end":"18:29","startHours":18.07908453183149,"endHours":18.47908453183149,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:17","end":"18:46","startHours":18.27908453183149,"endHours":18.760542265960183,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:02","end":"19:47","startHours":18.02908453183149,"endHours":19.77908453183149,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:07","end":"00:53","startHours":24.1164255349842,"endHours":24.886757909590113,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:43","end":"08:10","startHours":6.724098912742822,"endHours":8.168472115128907,"quality":"auspicious"},{"name":"Kāla","start":"08:10","end":"09:37","startHours":8.168472115128907,"endHours":9.612845317514989,"quality":"inauspicious"},{"name":"Śubha","start":"09:37","end":"11:03","startHours":9.612845317514989,"endHours":11.057218519901074,"quality":"auspicious"},{"name":"Roga","start":"11:03","end":"12:30","startHours":11.057218519901074,"endHours":12.501591722287156,"quality":"inauspicious"},{"name":"Udveg","start":"12:30","end":"13:57","startHours":12.501591722287156,"endHours":13.945964924673241,"quality":"inauspicious"},{"name":"Chala","start":"13:57","end":"15:23","startHours":13.945964924673241,"endHours":15.390338127059323,"quality":"neutral"},{"name":"Labha","start":"15:23","end":"16:50","startHours":15.390338127059323,"endHours":16.83471132944541,"quality":"auspicious"},{"name":"Amṛta","start":"16:50","end":"18:17","startHours":16.83471132944541,"endHours":18.27908453183149,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:17","end":"19:50","startHours":18.27908453183149,"endHours":19.834711329445405,"quality":"neutral"},{"name":"Labha","start":"19:50","end":"21:23","startHours":19.834711329445405,"endHours":21.390338127059323,"quality":"auspicious"},{"name":"Amṛta","start":"21:23","end":"22:57","startHours":21.390338127059323,"endHours":22.94596492467324,"quality":"auspicious"},{"name":"Kāla","start":"22:57","end":"00:30","startHours":22.94596492467324,"endHours":24.501591722287156,"quality":"inauspicious"},{"name":"Śubha","start":"00:30","end":"02:03","startHours":24.501591722287156,"endHours":26.05721851990107,"quality":"auspicious"},{"name":"Roga","start":"02:03","end":"03:37","startHours":26.05721851990107,"endHours":27.61284531751499,"quality":"inauspicious"},{"name":"Udveg","start":"03:37","end":"05:10","startHours":27.61284531751499,"endHours":29.168472115128907,"quality":"inauspicious"},{"name":"Chala","start":"05:10","end":"06:43","startHours":29.168472115128907,"endHours":30.72409891274282,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:43","end":"07:43","startHours":6.724098912742822,"endHours":7.724098912742822,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:43","end":"08:43","startHours":7.724098912742822,"endHours":8.724098912742821,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:43","end":"09:43","startHours":8.724098912742821,"endHours":9.724098912742821,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:43","end":"10:43","startHours":9.724098912742821,"endHours":10.724098912742821,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:43","end":"11:43","startHours":10.724098912742821,"endHours":11.724098912742821,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:43","end":"12:43","startHours":11.724098912742821,"endHours":12.724098912742821,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:43","end":"13:43","startHours":12.724098912742821,"endHours":13.724098912742821,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:43","end":"14:43","startHours":13.724098912742821,"endHours":14.724098912742821,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:43","end":"15:43","startHours":14.724098912742821,"endHours":15.724098912742821,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:43","end":"16:43","startHours":15.724098912742821,"endHours":16.72409891274282,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:43","end":"17:43","startHours":16.72409891274282,"endHours":17.72409891274282,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:43","end":"18:43","startHours":17.72409891274282,"endHours":18.72409891274282,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:43","end":"19:43","startHours":18.72409891274282,"endHours":19.72409891274282,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:43","end":"20:43","startHours":19.72409891274282,"endHours":20.72409891274282,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:43","end":"21:43","startHours":20.72409891274282,"endHours":21.72409891274282,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:43","end":"22:43","startHours":21.72409891274282,"endHours":22.72409891274282,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:43","end":"23:43","startHours":22.72409891274282,"endHours":23.72409891274282,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:43","end":"00:43","startHours":23.72409891274282,"endHours":24.72409891274282,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:43","end":"01:43","startHours":24.72409891274282,"endHours":25.72409891274282,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:43","end":"02:43","startHours":25.72409891274282,"endHours":26.72409891274282,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:43","end":"03:43","startHours":26.72409891274282,"endHours":27.72409891274282,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:43","end":"04:43","startHours":27.72409891274282,"endHours":28.72409891274282,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:43","end":"05:43","startHours":28.72409891274282,"endHours":29.72409891274282,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:43","end":"06:43","startHours":29.72409891274282,"endHours":30.72409891274282,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-20.258206125028217,"eotMinutes":-10.9643033372293,"ayanamsa":23.267}},"calendars":{"vikram_samvat":2015,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1880,"saka_samvatsara":"Vilambī","bengali_samvat":1365,"malayalam_era":1134,"nanakshahi_year":489,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Pratipada · Vikram 2015 Virodhakṛt · Śaka 1880 Vilambī"},"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},{"id":"magha-gupta-navratri-start","name":"Māgha Gupta Navrātri Start","name_sanskrit":"माघ गुप्त नवरात्रि आरम्भ","tradition":"Shakta","associated_deity":"Devī (10 Mahāvidyās)","significance":"Hidden (gupta) Navrātri for advanced sādhanā of 10 Mahāvidyās.","vrata":true,"detection":{"tithi_number":1,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":3}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 January 20, 1958 CE · Erode, Tamil Nadu · Vidhyamitra","description":"January 20, 1958 CE for Erode, Tamil Nadu: Śukla Pratipada, sūryodaya 06:43, sūryāsta 18:17.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1958-01-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1958-01-20","sa":"https://sa.vidhyamitra.com/city/erode/1958-01-20","hi":"https://hi.vidhyamitra.com/city/erode/1958-01-20","x-default":"https://vidhyamitra.com/city/erode/1958-01-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T15:45:41.863Z","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":"2026-05-20T15:45:41.863Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T15:45:41.864Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}