{"id":"vidhyamitra:city-day:erode:1938-10-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1938-10-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1938-10-21","date_display":"October 21, 1938 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":1938,"month":10,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2429192.770833,"kali_year":5040,"ahargana":1840727.2708,"sun":{"sidereal_longitude":183.4111,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":155.5073,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":332.0963,"elapsed_within_tithi_degrees":8.0963},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":155.5073,"elapsed_within_degrees":8.8406},"yoga":{"number":26,"name":"Indra","sum_longitude":338.9184},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"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":1938,"month":10,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2429192.770833,"ahargana":1840727.2708,"kali_year":5040,"ayanamsa_lahiri":22.9981,"grahas":{"sun":{"sidereal_longitude":183.98373000000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":154.93043,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false,"latitude":-3.6348},"mars":{"sidereal_longitude":155.19693000000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":191.81772999999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":300.08403,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":221.20263,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":351.08333,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":209.411,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":29.411,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"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":1938,"month":10,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2429192.770833,"kali_year":5040,"ahargana":1840727.2708,"sun":{"sidereal_longitude":183.4111,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":155.5073,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":332.0963,"elapsed_within_tithi_degrees":8.0963},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":155.5073,"elapsed_within_degrees":8.8406},"yoga":{"number":26,"name":"Indra","sum_longitude":338.9184},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.635,"elongation":27.904},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.635,"opposition_distance":152.096}},"eclipse_window_40days":[{"offset_days":18,"type":"lunar","occurs":true,"moon_latitude":0.541,"opposition_distance":0.068}]},"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":"17:58","solarNoonLocal":"12:03","dayLengthHours":11.834045834107755,"dayLengthDisplay":"11 Hours 50 Mins 03 Secs","nightLengthDisplay":"12 Hours 09 Mins 57 Secs","moonriseLocal":"04:04","moonsetLocal":"16:10","rahuKala":{"name":"Rāhu Kāla","start":"10:35","end":"12:03","startHours":10.57577392795812,"endHours":12.055029657221588,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:01","end":"16:30","startHours":15.013541115748527,"endHours":16.492796845012,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:37","end":"09:06","startHours":7.617262469431181,"endHours":9.09651819869465,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.899284101459521,"endHours":9.29375229592978,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:57","startHours":6.631091983255535,"endHours":6.946666538831742,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:27","startHours":11.66056146275133,"endHours":12.449497851691847,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:34","end":"05:21","startHours":4.5601339622866774,"endHours":5.349070351227195,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:09","end":"06:08","startHours":5.151836253992066,"endHours":6.138006740167712,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:02","end":"14:49","startHours":14.027370629572882,"endHours":14.816307018513399,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:46","end":"18:10","startHours":17.772052574275467,"endHours":18.172052574275465,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:58","end":"18:28","startHours":17.972052574275466,"endHours":18.46513781736329,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:43","end":"19:28","startHours":17.722052574275466,"endHours":19.472052574275466,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:27","startHours":23.66056146275133,"endHours":24.44949785169185,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:08","end":"07:37","startHours":6.138006740167712,"endHours":7.617262469431181,"quality":"neutral"},{"name":"Labha","start":"07:37","end":"09:06","startHours":7.617262469431181,"endHours":9.09651819869465,"quality":"auspicious"},{"name":"Amṛta","start":"09:06","end":"10:35","startHours":9.09651819869465,"endHours":10.57577392795812,"quality":"auspicious"},{"name":"Kāla","start":"10:35","end":"12:03","startHours":10.57577392795812,"endHours":12.055029657221588,"quality":"inauspicious"},{"name":"Śubha","start":"12:03","end":"13:32","startHours":12.055029657221588,"endHours":13.53428538648506,"quality":"auspicious"},{"name":"Roga","start":"13:32","end":"15:01","startHours":13.53428538648506,"endHours":15.013541115748527,"quality":"inauspicious"},{"name":"Udveg","start":"15:01","end":"16:30","startHours":15.013541115748527,"endHours":16.492796845012,"quality":"inauspicious"},{"name":"Chala","start":"16:30","end":"17:58","startHours":16.492796845012,"endHours":17.972052574275466,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:58","end":"19:30","startHours":17.972052574275466,"endHours":19.492796845011995,"quality":"inauspicious"},{"name":"Udveg","start":"19:30","end":"21:01","startHours":19.492796845011995,"endHours":21.013541115748527,"quality":"inauspicious"},{"name":"Chala","start":"21:01","end":"22:32","startHours":21.013541115748527,"endHours":22.53428538648506,"quality":"neutral"},{"name":"Labha","start":"22:32","end":"00:03","startHours":22.53428538648506,"endHours":24.05502965722159,"quality":"auspicious"},{"name":"Amṛta","start":"00:03","end":"01:35","startHours":24.05502965722159,"endHours":25.575773927958117,"quality":"auspicious"},{"name":"Kāla","start":"01:35","end":"03:06","startHours":25.575773927958117,"endHours":27.09651819869465,"quality":"inauspicious"},{"name":"Śubha","start":"03:06","end":"04:37","startHours":27.09651819869465,"endHours":28.617262469431182,"quality":"auspicious"},{"name":"Roga","start":"04:37","end":"06:08","startHours":28.617262469431182,"endHours":30.13800674016771,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.138006740167712,"endHours":7.138006740167712,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.138006740167712,"endHours":8.138006740167711,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.138006740167711,"endHours":9.138006740167711,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.138006740167711,"endHours":10.138006740167711,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.138006740167711,"endHours":11.138006740167711,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.138006740167711,"endHours":12.138006740167711,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.138006740167711,"endHours":13.138006740167711,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.138006740167711,"endHours":14.138006740167711,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.138006740167711,"endHours":15.138006740167711,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.138006740167711,"endHours":16.13800674016771,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.13800674016771,"endHours":17.13800674016771,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.13800674016771,"endHours":18.13800674016771,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.13800674016771,"endHours":19.13800674016771,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.13800674016771,"endHours":20.13800674016771,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.13800674016771,"endHours":21.13800674016771,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.13800674016771,"endHours":22.13800674016771,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.13800674016771,"endHours":23.13800674016771,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.13800674016771,"endHours":24.13800674016771,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.13800674016771,"endHours":25.13800674016771,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.13800674016771,"endHours":26.13800674016771,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.13800674016771,"endHours":27.13800674016771,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.13800674016771,"endHours":28.13800674016771,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.13800674016771,"endHours":29.13800674016771,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.13800674016771,"endHours":30.13800674016771,"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","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"South-East","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-10.396226439227286,"eotMinutes":15.829420566704727,"ayanamsa":22.9981}},"calendars":{"vikram_samvat":1995,"vikram_samvatsara":"Khara","saka_samvat":1860,"saka_samvatsara":"Bahudhānya","bengali_samvat":1345,"malayalam_era":1114,"nanakshahi_year":469,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Trayodaśī · Vikram 1995 Khara · Śaka 1860 Bahudhānya"},"festivals":[{"id":"dhanteras","name":"Dhanteras (Dhanvantari Jayantī)","name_sanskrit":"धनतेरस / धन्वन्तरि जयन्ती","tradition":"Pan-Hindu","associated_deity":"Dhanvantari (Āyurveda-deva, avatāra of Viṣṇu)","significance":"Birth of Dhanvantari from samudra-mathana with amṛta-kalaśa. Day 1 of Diwali.","vrata":true,"detection":{"tithi_number":28,"tithi_paksha":"Kṛṣṇa","lunar_month":"Kārtika"},"precedence":2,"sources":["Bhāgavata 8.8.32-34"]},{"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 October 21, 1938 CE · Erode, Tamil Nadu · Vidhyamitra","description":"October 21, 1938 CE for Erode, Tamil Nadu: Kṛṣṇa Trayodaśī, sūryodaya 06:08, sūryāsta 17:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1938-10-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1938-10-21","sa":"https://sa.vidhyamitra.com/city/erode/1938-10-21","hi":"https://hi.vidhyamitra.com/city/erode/1938-10-21","x-default":"https://vidhyamitra.com/city/erode/1938-10-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T09:29:09.251Z","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":"2026-06-02T09:29:09.251Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T09:29:09.251Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}