{"id":"vidhyamitra:city-day:erode:1971-09-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1971-09-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1971-09-04","date_display":"September 4, 1971 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":1971,"month":9,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441198.770833,"kali_year":5073,"ahargana":1852733.2708,"sun":{"sidereal_longitude":136.782,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":301.0277,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":164.2457,"elapsed_within_tithi_degrees":8.2457},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3,"moon_longitude":301.0277,"elapsed_within_degrees":7.6944},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":77.8097},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1971,"month":9,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441198.770833,"ahargana":1852733.2708,"kali_year":5073,"ayanamsa_lahiri":23.4573,"grahas":{"sun":{"sidereal_longitude":137.40961199999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":301.657612,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false,"latitude":0.6064},"mars":{"sidereal_longitude":289.00191199999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":124.47301199999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":216.36071200000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":139.79891199999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":43.23781199999996,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":293.2753,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":113.2753,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":1971,"month":9,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441198.770833,"kali_year":5073,"ahargana":1852733.2708,"sun":{"sidereal_longitude":136.782,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":301.0277,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":164.2457,"elapsed_within_tithi_degrees":8.2457},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3,"moon_longitude":301.0277,"elapsed_within_degrees":7.6944},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":77.8097},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.606,"elongation":164.246},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.606,"opposition_distance":15.754}},"eclipse_window_40days":[{"offset_days":-14,"type":"solar","occurs":true,"moon_latitude":-0.93,"elongation":2.643}]},"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":"18:27","solarNoonLocal":"12:18","dayLengthHours":12.315799026253359,"dayLengthDisplay":"12 Hours 18 Mins 57 Secs","nightLengthDisplay":"11 Hours 41 Mins 03 Secs","moonriseLocal":"17:23","moonsetLocal":"05:06","rahuKala":{"name":"Rāhu Kāla","start":"09:13","end":"10:45","startHours":9.214939641815725,"endHours":10.754414520097395,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:50","end":"15:22","startHours":13.833364276660735,"endHours":15.372839154942405,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:08","end":"07:41","startHours":6.135989885252386,"endHours":7.675464763534056,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:25","startHours":9.009676324711503,"endHours":9.42020295891995,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:39","end":"06:59","startHours":6.649148178012943,"endHours":6.9775694853797,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:42","startHours":11.88336276417062,"endHours":12.70441603258751,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:30","end":"05:19","startHours":4.493883348418605,"endHours":5.314936616835496,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:08","startHours":5.1096732997312735,"endHours":6.135989885252386,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:21","end":"15:10","startHours":14.346522569421293,"endHours":15.167575837838184,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:15","end":"18:39","startHours":18.251788911505745,"endHours":18.651788911505744,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:27","end":"18:58","startHours":18.451788911505744,"endHours":18.964947204266302,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:12","end":"19:57","startHours":18.201788911505744,"endHours":19.951788911505744,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:42","startHours":23.88336276417062,"endHours":24.70441603258751,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:08","end":"07:41","startHours":6.135989885252386,"endHours":7.675464763534056,"quality":"inauspicious"},{"name":"Śubha","start":"07:41","end":"09:13","startHours":7.675464763534056,"endHours":9.214939641815725,"quality":"auspicious"},{"name":"Roga","start":"09:13","end":"10:45","startHours":9.214939641815725,"endHours":10.754414520097395,"quality":"inauspicious"},{"name":"Udveg","start":"10:45","end":"12:18","startHours":10.754414520097395,"endHours":12.293889398379065,"quality":"inauspicious"},{"name":"Chala","start":"12:18","end":"13:50","startHours":12.293889398379065,"endHours":13.833364276660735,"quality":"neutral"},{"name":"Labha","start":"13:50","end":"15:22","startHours":13.833364276660735,"endHours":15.372839154942405,"quality":"auspicious"},{"name":"Amṛta","start":"15:22","end":"16:55","startHours":15.372839154942405,"endHours":16.912314033224074,"quality":"auspicious"},{"name":"Kāla","start":"16:55","end":"18:27","startHours":16.912314033224074,"endHours":18.451788911505744,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:27","end":"19:55","startHours":18.451788911505744,"endHours":19.912314033224074,"quality":"auspicious"},{"name":"Amṛta","start":"19:55","end":"21:22","startHours":19.912314033224074,"endHours":21.372839154942405,"quality":"auspicious"},{"name":"Kāla","start":"21:22","end":"22:50","startHours":21.372839154942405,"endHours":22.833364276660735,"quality":"inauspicious"},{"name":"Śubha","start":"22:50","end":"00:18","startHours":22.833364276660735,"endHours":24.293889398379065,"quality":"auspicious"},{"name":"Roga","start":"00:18","end":"01:45","startHours":24.293889398379065,"endHours":25.754414520097395,"quality":"inauspicious"},{"name":"Udveg","start":"01:45","end":"03:13","startHours":25.754414520097395,"endHours":27.214939641815725,"quality":"inauspicious"},{"name":"Chala","start":"03:13","end":"04:41","startHours":27.214939641815725,"endHours":28.675464763534055,"quality":"neutral"},{"name":"Labha","start":"04:41","end":"06:08","startHours":28.675464763534055,"endHours":30.135989885252386,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.135989885252386,"endHours":7.135989885252386,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.135989885252386,"endHours":8.135989885252386,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.135989885252386,"endHours":9.135989885252386,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.135989885252386,"endHours":10.135989885252386,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.135989885252386,"endHours":11.135989885252386,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.135989885252386,"endHours":12.135989885252386,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.135989885252386,"endHours":13.135989885252386,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.135989885252386,"endHours":14.135989885252386,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.135989885252386,"endHours":15.135989885252386,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.135989885252386,"endHours":16.135989885252386,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.135989885252386,"endHours":17.135989885252386,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.135989885252386,"endHours":18.135989885252386,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.135989885252386,"endHours":19.135989885252386,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.135989885252386,"endHours":20.135989885252386,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.135989885252386,"endHours":21.135989885252386,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.135989885252386,"endHours":22.135989885252386,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.135989885252386,"endHours":23.135989885252386,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.135989885252386,"endHours":24.135989885252386,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.135989885252386,"endHours":25.135989885252386,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.135989885252386,"endHours":26.135989885252386,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.135989885252386,"endHours":27.135989885252386,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.135989885252386,"endHours":28.135989885252386,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.135989885252386,"endHours":29.135989885252386,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.135989885252386,"endHours":30.135989885252386,"planetary_lord":"Mercury"}],"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","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":7.490523096801641,"eotMinutes":1.4978360972560227,"ayanamsa":23.4573}},"calendars":{"vikram_samvat":2028,"vikram_samvatsara":"Raktākṣī","saka_samvat":1893,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1378,"malayalam_era":1147,"nanakshahi_year":502,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","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":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Caturdaśī · Vikram 2028 Raktākṣī · Śaka 1893 Virodhakṛt"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 September 4, 1971 CE · Erode, Tamil Nadu · Vidhyamitra","description":"September 4, 1971 CE for Erode, Tamil Nadu: Śukla Caturdaśī, sūryodaya 06:08, sūryāsta 18:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1971-09-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1971-09-04","sa":"https://sa.vidhyamitra.com/city/erode/1971-09-04","hi":"https://hi.vidhyamitra.com/city/erode/1971-09-04","x-default":"https://vidhyamitra.com/city/erode/1971-09-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T06:41:14.907Z","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":"2026-05-31T06:41:14.907Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T06:41:14.907Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}