{"id":"vidhyamitra:city-day:erode:1949-01-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1949-01-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1949-01-13","date_display":"January 13, 1949 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":1949,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2432929.770833,"kali_year":5050,"ahargana":1844464.2708,"sun":{"sidereal_longitude":269.3902,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":64.2668,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":154.8767,"elapsed_within_tithi_degrees":10.8767},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":64.2668,"elapsed_within_degrees":10.9335},"yoga":{"number":26,"name":"Indra","sum_longitude":333.657},"karana":{"half_tithi_index":25,"name":"Taitila"},"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":1949,"month":1,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2432929.770833,"ahargana":1844464.2708,"kali_year":5050,"ayanamsa_lahiri":23.141,"grahas":{"sun":{"sidereal_longitude":269.394849,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":64.63454899999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false,"latitude":3.5859},"mars":{"sidereal_longitude":284.1190489999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":287.7666489999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":261.336049,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":247.17204900000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":132.72634900000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":11.4067,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":191.4067,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","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":1949,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2432929.770833,"kali_year":5050,"ahargana":1844464.2708,"sun":{"sidereal_longitude":269.3902,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":64.2668,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":154.8767,"elapsed_within_tithi_degrees":10.8767},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":64.2668,"elapsed_within_degrees":10.9335},"yoga":{"number":26,"name":"Indra","sum_longitude":333.657},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.586,"elongation":154.877},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.586,"opposition_distance":25.123}},"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":"06:42","sunsetLocal":"18:13","solarNoonLocal":"12:28","dayLengthHours":11.516281589764498,"dayLengthDisplay":"11 Hours 30 Mins 59 Secs","nightLengthDisplay":"12 Hours 29 Mins 01 Secs","moonriseLocal":"16:26","moonsetLocal":"05:11","rahuKala":{"name":"Rāhu Kāla","start":"13:54","end":"15:21","startHours":13.902320723576787,"endHours":15.34185592229735,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:42","end":"08:09","startHours":6.704644729973976,"endHours":8.14417992869454,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:35","end":"11:01","startHours":9.5837151274151,"endHours":11.023250326135663,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:24","end":"09:47","startHours":9.391777100919025,"endHours":9.775653153911176,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:11","end":"07:29","startHours":7.184489796214164,"endHours":7.491590638607884,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:51","startHours":12.078909471864076,"endHours":12.846661577848376,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:10","end":"05:56","startHours":5.169140518005377,"endHours":5.936892623989676,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:45","end":"06:42","startHours":5.744954597493601,"endHours":6.704644729973976,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:23","end":"15:09","startHours":14.382165789816975,"endHours":15.149917895801275,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:01","end":"18:25","startHours":18.020926319738475,"endHours":18.420926319738474,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:13","end":"18:42","startHours":18.220926319738474,"endHours":18.700771385978662,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:58","end":"19:43","startHours":17.970926319738474,"endHours":19.720926319738474,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:51","startHours":24.078909471864076,"endHours":24.846661577848376,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:42","end":"08:09","startHours":6.704644729973976,"endHours":8.14417992869454,"quality":"auspicious"},{"name":"Roga","start":"08:09","end":"09:35","startHours":8.14417992869454,"endHours":9.5837151274151,"quality":"inauspicious"},{"name":"Udveg","start":"09:35","end":"11:01","startHours":9.5837151274151,"endHours":11.023250326135663,"quality":"inauspicious"},{"name":"Chala","start":"11:01","end":"12:28","startHours":11.023250326135663,"endHours":12.462785524856226,"quality":"neutral"},{"name":"Labha","start":"12:28","end":"13:54","startHours":12.462785524856226,"endHours":13.902320723576787,"quality":"auspicious"},{"name":"Amṛta","start":"13:54","end":"15:21","startHours":13.902320723576787,"endHours":15.34185592229735,"quality":"auspicious"},{"name":"Kāla","start":"15:21","end":"16:47","startHours":15.34185592229735,"endHours":16.78139112101791,"quality":"inauspicious"},{"name":"Śubha","start":"16:47","end":"18:13","startHours":16.78139112101791,"endHours":18.220926319738474,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:13","end":"19:47","startHours":18.220926319738474,"endHours":19.78139112101791,"quality":"auspicious"},{"name":"Kāla","start":"19:47","end":"21:21","startHours":19.78139112101791,"endHours":21.34185592229735,"quality":"inauspicious"},{"name":"Śubha","start":"21:21","end":"22:54","startHours":21.34185592229735,"endHours":22.902320723576786,"quality":"auspicious"},{"name":"Roga","start":"22:54","end":"00:28","startHours":22.902320723576786,"endHours":24.462785524856226,"quality":"inauspicious"},{"name":"Udveg","start":"00:28","end":"02:01","startHours":24.462785524856226,"endHours":26.023250326135663,"quality":"inauspicious"},{"name":"Chala","start":"02:01","end":"03:35","startHours":26.023250326135663,"endHours":27.5837151274151,"quality":"neutral"},{"name":"Labha","start":"03:35","end":"05:09","startHours":27.5837151274151,"endHours":29.14417992869454,"quality":"auspicious"},{"name":"Amṛta","start":"05:09","end":"06:42","startHours":29.14417992869454,"endHours":30.704644729973978,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:42","end":"07:42","startHours":6.704644729973976,"endHours":7.704644729973976,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:42","end":"08:42","startHours":7.704644729973976,"endHours":8.704644729973976,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:42","end":"09:42","startHours":8.704644729973976,"endHours":9.704644729973976,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:42","end":"10:42","startHours":9.704644729973976,"endHours":10.704644729973976,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:42","end":"11:42","startHours":10.704644729973976,"endHours":11.704644729973976,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:42","end":"12:42","startHours":11.704644729973976,"endHours":12.704644729973976,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:42","end":"13:42","startHours":12.704644729973976,"endHours":13.704644729973976,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:42","end":"14:42","startHours":13.704644729973976,"endHours":14.704644729973976,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:42","end":"15:42","startHours":14.704644729973976,"endHours":15.704644729973976,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:42","end":"16:42","startHours":15.704644729973976,"endHours":16.704644729973978,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:42","end":"17:42","startHours":16.704644729973978,"endHours":17.704644729973978,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:42","end":"18:42","startHours":17.704644729973978,"endHours":18.704644729973978,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:42","end":"19:42","startHours":18.704644729973978,"endHours":19.704644729973978,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:42","end":"20:42","startHours":19.704644729973978,"endHours":20.704644729973978,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:42","end":"21:42","startHours":20.704644729973978,"endHours":21.704644729973978,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:42","end":"22:42","startHours":21.704644729973978,"endHours":22.704644729973978,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:42","end":"23:42","startHours":22.704644729973978,"endHours":23.704644729973978,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:42","end":"00:42","startHours":23.704644729973978,"endHours":24.704644729973978,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:42","end":"01:42","startHours":24.704644729973978,"endHours":25.704644729973978,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:42","end":"02:42","startHours":25.704644729973978,"endHours":26.704644729973978,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:42","end":"03:42","startHours":26.704644729973978,"endHours":27.704644729973978,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:42","end":"04:42","startHours":27.704644729973978,"endHours":28.704644729973978,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:42","end":"05:42","startHours":28.704644729973978,"endHours":29.704644729973978,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:42","end":"06:42","startHours":29.704644729973978,"endHours":30.704644729973978,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"Amṛta","quality":"Auspicious"},"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":-21.552990576888895,"eotMinutes":-8.635931491373626,"ayanamsa":23.141}},"calendars":{"vikram_samvat":2006,"vikram_samvatsara":"Śubhakṛt","saka_samvat":1871,"saka_samvatsara":"Virodhi","bengali_samvat":1356,"malayalam_era":1125,"nanakshahi_year":480,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Trayodaśī · Vikram 2006 Śubhakṛt · Śaka 1871 Virodhi"},"festivals":[{"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},{"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":"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":[]},"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 13, 1949 CE · Erode, Tamil Nadu · Vidhyamitra","description":"January 13, 1949 CE for Erode, Tamil Nadu: Śukla Trayodaśī, sūryodaya 06:42, sūryāsta 18:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1949-01-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1949-01-13","sa":"https://sa.vidhyamitra.com/city/erode/1949-01-13","hi":"https://hi.vidhyamitra.com/city/erode/1949-01-13","x-default":"https://vidhyamitra.com/city/erode/1949-01-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T09:04:41.532Z","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":"2026-05-21T09:04:41.532Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T09:04:41.532Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}