{"id":"vidhyamitra:city-day:erode:1938-09-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1938-09-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1938-09-13","date_display":"September 13, 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":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2429154.770833,"kali_year":5040,"ahargana":1840689.2708,"sun":{"sidereal_longitude":146.0187,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":4.93,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":218.9113,"elapsed_within_tithi_degrees":2.9113},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":4.93,"elapsed_within_degrees":4.93},"yoga":{"number":12,"name":"Dhruva","sum_longitude":150.9488},"karana":{"half_tithi_index":36,"name":"Bava"},"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":1938,"month":9,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2429154.770833,"ahargana":1840689.2708,"kali_year":5040,"ayanamsa_lahiri":22.9967,"grahas":{"sun":{"sidereal_longitude":146.59338200000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":4.768581999999981,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false,"latitude":2.0058},"mars":{"sidereal_longitude":131.161182,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":129.640782,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":302.142282,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":193.73848199999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":353.955382,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":211.4244,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":31.4244,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":1938,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2429154.770833,"kali_year":5040,"ahargana":1840689.2708,"sun":{"sidereal_longitude":146.0187,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":4.93,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":218.9113,"elapsed_within_tithi_degrees":2.9113},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":4.93,"elapsed_within_degrees":4.93},"yoga":{"number":12,"name":"Dhruva","sum_longitude":150.9488},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.006,"elongation":141.089},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.006,"opposition_distance":38.911}},"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":"18:21","solarNoonLocal":"12:14","dayLengthHours":12.223998593431723,"dayLengthDisplay":"12 Hours 13 Mins 26 Secs","nightLengthDisplay":"11 Hours 46 Mins 34 Secs","moonriseLocal":"20:36","moonsetLocal":"08:58","rahuKala":{"name":"Rāhu Kāla","start":"15:18","end":"16:49","startHours":15.29562179952683,"endHours":16.823621623705794,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:11","end":"10:43","startHours":9.183622502810968,"endHours":10.711622326989932,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:14","end":"13:46","startHours":12.239622151168899,"endHours":13.767621975347865,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:59","end":"09:23","startHours":8.979889192920439,"endHours":9.387355812701497,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:58","startHours":6.636956129179358,"endHours":6.962929425004204,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:39","startHours":11.83215553138784,"endHours":12.647088770949956,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:30","end":"05:19","startHours":4.497756375328807,"endHours":5.312689614890922,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:08","startHours":5.108956305000394,"endHours":6.127622854453037,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:17","end":"15:06","startHours":14.276955250074185,"endHours":15.091888489636299,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:09","end":"18:33","startHours":18.15162144788476,"endHours":18.55162144788476,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:21","end":"18:52","startHours":18.35162144788476,"endHours":18.860954722611083,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:06","end":"19:51","startHours":18.10162144788476,"endHours":19.85162144788476,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:39","startHours":23.83215553138784,"endHours":24.647088770949956,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:08","end":"07:39","startHours":6.127622854453037,"endHours":7.655622678632002,"quality":"inauspicious"},{"name":"Udveg","start":"07:39","end":"09:11","startHours":7.655622678632002,"endHours":9.183622502810968,"quality":"inauspicious"},{"name":"Chala","start":"09:11","end":"10:43","startHours":9.183622502810968,"endHours":10.711622326989932,"quality":"neutral"},{"name":"Labha","start":"10:43","end":"12:14","startHours":10.711622326989932,"endHours":12.239622151168899,"quality":"auspicious"},{"name":"Amṛta","start":"12:14","end":"13:46","startHours":12.239622151168899,"endHours":13.767621975347865,"quality":"auspicious"},{"name":"Kāla","start":"13:46","end":"15:18","startHours":13.767621975347865,"endHours":15.29562179952683,"quality":"inauspicious"},{"name":"Śubha","start":"15:18","end":"16:49","startHours":15.29562179952683,"endHours":16.823621623705794,"quality":"auspicious"},{"name":"Roga","start":"16:49","end":"18:21","startHours":16.823621623705794,"endHours":18.35162144788476,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:21","end":"19:49","startHours":18.35162144788476,"endHours":19.823621623705794,"quality":"inauspicious"},{"name":"Śubha","start":"19:49","end":"21:18","startHours":19.823621623705794,"endHours":21.295621799526828,"quality":"auspicious"},{"name":"Roga","start":"21:18","end":"22:46","startHours":21.295621799526828,"endHours":22.767621975347865,"quality":"inauspicious"},{"name":"Udveg","start":"22:46","end":"00:14","startHours":22.767621975347865,"endHours":24.2396221511689,"quality":"inauspicious"},{"name":"Chala","start":"00:14","end":"01:43","startHours":24.2396221511689,"endHours":25.711622326989932,"quality":"neutral"},{"name":"Labha","start":"01:43","end":"03:11","startHours":25.711622326989932,"endHours":27.18362250281097,"quality":"auspicious"},{"name":"Amṛta","start":"03:11","end":"04:39","startHours":27.18362250281097,"endHours":28.655622678632003,"quality":"auspicious"},{"name":"Kāla","start":"04:39","end":"06:08","startHours":28.655622678632003,"endHours":30.127622854453037,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.127622854453037,"endHours":7.127622854453037,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.127622854453037,"endHours":8.127622854453037,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.127622854453037,"endHours":9.127622854453037,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.127622854453037,"endHours":10.127622854453037,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.127622854453037,"endHours":11.127622854453037,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.127622854453037,"endHours":12.127622854453037,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.127622854453037,"endHours":13.127622854453037,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.127622854453037,"endHours":14.127622854453037,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.127622854453037,"endHours":15.127622854453037,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.127622854453037,"endHours":16.127622854453037,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.127622854453037,"endHours":17.127622854453037,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.127622854453037,"endHours":18.127622854453037,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.127622854453037,"endHours":19.127622854453037,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.127622854453037,"endHours":20.127622854453037,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.127622854453037,"endHours":21.127622854453037,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.127622854453037,"endHours":22.127622854453037,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.127622854453037,"endHours":23.127622854453037,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.127622854453037,"endHours":24.127622854453037,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.127622854453037,"endHours":25.127622854453037,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.127622854453037,"endHours":26.127622854453037,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.127622854453037,"endHours":27.127622854453037,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.127622854453037,"endHours":28.127622854453037,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.127622854453037,"endHours":29.127622854453037,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.127622854453037,"endHours":30.127622854453037,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":4.121173441702236,"eotMinutes":4.753870929866006,"ayanamsa":22.9967}},"calendars":{"vikram_samvat":1995,"vikram_samvatsara":"Khara","saka_samvat":1860,"saka_samvatsara":"Bahudhānya","bengali_samvat":1345,"malayalam_era":1114,"nanakshahi_year":469,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Caturthī · Vikram 1995 Khara · Śaka 1860 Bahudhānya"},"festivals":[{"id":"angarika-chaturthi","name":"Aṅgāraka Caturthī (Tuesday Caturthī)","name_sanskrit":"अङ्गारक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa + Maṅgala","significance":"Tuesday-Caturthī (rare); supremely auspicious for Maṅgala-doṣa-nivāraṇa.","vrata":true,"detection":{"any_of":[{"tithi_number":4,"vara_name":"Maṅgalavāra (Tuesday)"},{"tithi_number":19,"vara_name":"Maṅgalavāra (Tuesday)"}]},"precedence":3},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 September 13, 1938 CE · Erode, Tamil Nadu · Vidhyamitra","description":"September 13, 1938 CE for Erode, Tamil Nadu: Kṛṣṇa Caturthī, sūryodaya 06:08, sūryāsta 18:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1938-09-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1938-09-13","sa":"https://sa.vidhyamitra.com/city/erode/1938-09-13","hi":"https://hi.vidhyamitra.com/city/erode/1938-09-13","x-default":"https://vidhyamitra.com/city/erode/1938-09-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T05:19:13.213Z","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":"2026-06-01T05:19:13.213Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T05:19:13.213Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}