{"id":"vidhyamitra:city-day:erode:1937-08-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1937-08-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1937-08-20","date_display":"August 20, 1937 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":1937,"month":8,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2428765.770833,"kali_year":5039,"ahargana":1840300.2708,"sun":{"sidereal_longitude":123.1238,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":278.4397,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":155.3159,"elapsed_within_tithi_degrees":11.3159},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":278.4397,"elapsed_within_degrees":11.773},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":41.5635},"karana":{"half_tithi_index":25,"name":"Taitila"},"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":1937,"month":8,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2428765.770833,"ahargana":1840300.2708,"kali_year":5039,"ayanamsa_lahiri":22.9818,"grahas":{"sun":{"sidereal_longitude":123.61264399999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":279.538444,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false,"latitude":3.2574},"mars":{"sidereal_longitude":223.17324399999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":151.83084399999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":266.213444,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":85.11974399999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":341.707544,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":232.0355,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":52.0355,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":1937,"month":8,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2428765.770833,"kali_year":5039,"ahargana":1840300.2708,"sun":{"sidereal_longitude":123.1238,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":278.4397,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":155.3159,"elapsed_within_tithi_degrees":11.3159},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":278.4397,"elapsed_within_degrees":11.773},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":41.5635},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.257,"elongation":155.316},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.257,"opposition_distance":24.684}},"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":"06:08","sunsetLocal":"18:36","solarNoonLocal":"12:22","dayLengthHours":12.460230353096733,"dayLengthDisplay":"12 Hours 27 Mins 37 Secs","nightLengthDisplay":"11 Hours 32 Mins 23 Secs","moonriseLocal":"17:00","moonsetLocal":"04:32","rahuKala":{"name":"Rāhu Kāla","start":"10:49","end":"12:22","startHours":10.812158054371746,"endHours":12.369686848508838,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:29","end":"17:03","startHours":15.484744436783021,"endHours":17.042273230920113,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:42","end":"09:15","startHours":7.697100466097564,"endHours":9.254629260234655,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:03","end":"09:28","startHours":9.04695875434971,"endHours":9.462299766119601,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:40","end":"06:59","startHours":6.658747936672836,"endHours":6.991020746088749,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:47","startHours":11.954345836738947,"endHours":12.78502786027873,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:29","end":"05:19","startHours":4.478207624880907,"endHours":5.30888964842069,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:06","end":"06:08","startHours":5.1012191425357445,"endHours":6.139571671960472,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:27","end":"15:17","startHours":14.446391907358294,"endHours":15.277073930898077,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:24","end":"18:48","startHours":18.399802025057205,"endHours":18.799802025057204,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:36","end":"19:07","startHours":18.599802025057205,"endHours":19.11897828976957,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:21","end":"20:06","startHours":18.349802025057205,"endHours":20.099802025057205,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:47","startHours":23.95434583673895,"endHours":24.785027860278728,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:08","end":"07:42","startHours":6.139571671960472,"endHours":7.697100466097564,"quality":"neutral"},{"name":"Labha","start":"07:42","end":"09:15","startHours":7.697100466097564,"endHours":9.254629260234655,"quality":"auspicious"},{"name":"Amṛta","start":"09:15","end":"10:49","startHours":9.254629260234655,"endHours":10.812158054371746,"quality":"auspicious"},{"name":"Kāla","start":"10:49","end":"12:22","startHours":10.812158054371746,"endHours":12.369686848508838,"quality":"inauspicious"},{"name":"Śubha","start":"12:22","end":"13:56","startHours":12.369686848508838,"endHours":13.92721564264593,"quality":"auspicious"},{"name":"Roga","start":"13:56","end":"15:29","startHours":13.92721564264593,"endHours":15.484744436783021,"quality":"inauspicious"},{"name":"Udveg","start":"15:29","end":"17:03","startHours":15.484744436783021,"endHours":17.042273230920113,"quality":"inauspicious"},{"name":"Chala","start":"17:03","end":"18:36","startHours":17.042273230920113,"endHours":18.599802025057205,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:36","end":"20:03","startHours":18.599802025057205,"endHours":20.042273230920113,"quality":"inauspicious"},{"name":"Udveg","start":"20:03","end":"21:29","startHours":20.042273230920113,"endHours":21.48474443678302,"quality":"inauspicious"},{"name":"Chala","start":"21:29","end":"22:56","startHours":21.48474443678302,"endHours":22.92721564264593,"quality":"neutral"},{"name":"Labha","start":"22:56","end":"00:22","startHours":22.92721564264593,"endHours":24.369686848508838,"quality":"auspicious"},{"name":"Amṛta","start":"00:22","end":"01:49","startHours":24.369686848508838,"endHours":25.812158054371746,"quality":"auspicious"},{"name":"Kāla","start":"01:49","end":"03:15","startHours":25.812158054371746,"endHours":27.254629260234655,"quality":"inauspicious"},{"name":"Śubha","start":"03:15","end":"04:42","startHours":27.254629260234655,"endHours":28.697100466097563,"quality":"auspicious"},{"name":"Roga","start":"04:42","end":"06:08","startHours":28.697100466097563,"endHours":30.13957167196047,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.139571671960472,"endHours":7.139571671960472,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.139571671960472,"endHours":8.139571671960471,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.139571671960471,"endHours":9.139571671960471,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.139571671960471,"endHours":10.139571671960471,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.139571671960471,"endHours":11.139571671960471,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.139571671960471,"endHours":12.139571671960471,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.139571671960471,"endHours":13.139571671960471,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.139571671960471,"endHours":14.139571671960471,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.139571671960471,"endHours":15.139571671960471,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.139571671960471,"endHours":16.13957167196047,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.13957167196047,"endHours":17.13957167196047,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.13957167196047,"endHours":18.13957167196047,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.13957167196047,"endHours":19.13957167196047,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.13957167196047,"endHours":20.13957167196047,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.13957167196047,"endHours":21.13957167196047,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.13957167196047,"endHours":22.13957167196047,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.13957167196047,"endHours":23.13957167196047,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.13957167196047,"endHours":24.13957167196047,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.13957167196047,"endHours":25.13957167196047,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.13957167196047,"endHours":26.13957167196047,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.13957167196047,"endHours":27.13957167196047,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.13957167196047,"endHours":28.13957167196047,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.13957167196047,"endHours":29.13957167196047,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.13957167196047,"endHours":30.13957167196047,"planetary_lord":"Mars"}],"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":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":12.648910780958778,"eotMinutes":-3.0500109105302213,"ayanamsa":22.9818}},"calendars":{"vikram_samvat":1994,"vikram_samvatsara":"Vikṛti","saka_samvat":1859,"saka_samvatsara":"Īśvara","bengali_samvat":1344,"malayalam_era":1113,"nanakshahi_year":468,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Trayodaśī · Vikram 1994 Vikṛti · Śaka 1859 Īśvara"},"festivals":[{"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":"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":[]},"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 August 20, 1937 CE · Erode, Tamil Nadu · Vidhyamitra","description":"August 20, 1937 CE for Erode, Tamil Nadu: Śukla Trayodaśī, sūryodaya 06:08, sūryāsta 18:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1937-08-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1937-08-20","sa":"https://sa.vidhyamitra.com/city/erode/1937-08-20","hi":"https://hi.vidhyamitra.com/city/erode/1937-08-20","x-default":"https://vidhyamitra.com/city/erode/1937-08-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T00:19:19.313Z","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":"2026-05-31T00:19:19.313Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T00:19:19.313Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}