{"id":"vidhyamitra:city-day:erode:1971-09-30:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1971-09-30","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1971-09-30","date_display":"September 30, 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":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441224.770833,"kali_year":5073,"ahargana":1852759.2708,"sun":{"sidereal_longitude":162.0943,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":283.6962,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":121.6018,"elapsed_within_tithi_degrees":1.6018},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":283.6962,"elapsed_within_degrees":3.6962},"yoga":{"number":7,"name":"Sukarma","sum_longitude":85.7905},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"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":1971,"month":9,"day":30,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441224.770833,"ahargana":1852759.2708,"kali_year":5073,"ayanamsa_lahiri":23.4583,"grahas":{"sun":{"sidereal_longitude":162.77121899999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"moon":{"sidereal_longitude":281.28861900000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false,"latitude":-0.6413},"mars":{"sidereal_longitude":291.53081899999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":156.29181900000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":220.05751899999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":172.13831900000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":43.33841899999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":291.8977,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":111.8977,"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":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441224.770833,"kali_year":5073,"ahargana":1852759.2708,"sun":{"sidereal_longitude":162.0943,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":283.6962,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":121.6018,"elapsed_within_tithi_degrees":1.6018},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":283.6962,"elapsed_within_degrees":3.6962},"yoga":{"number":7,"name":"Sukarma","sum_longitude":85.7905},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.641,"elongation":121.602},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.641,"opposition_distance":58.398}},"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":"06:07","sunsetLocal":"18:10","solarNoonLocal":"12:08","dayLengthHours":12.047191433295119,"dayLengthDisplay":"12 Hours 02 Mins 50 Secs","nightLengthDisplay":"11 Hours 57 Mins 10 Secs","moonriseLocal":"14:16","moonsetLocal":"01:49","rahuKala":{"name":"Rāhu Kāla","start":"13:39","end":"15:09","startHours":13.644007657245464,"endHours":15.149906586407353,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:07","end":"07:37","startHours":6.114513011436014,"endHours":7.620411940597903,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:08","end":"10:38","startHours":9.126310869759793,"endHours":10.632209798921682,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:56","end":"09:20","startHours":8.92552434587154,"endHours":9.327097393648046,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:37","end":"06:56","startHours":6.6164793211566435,"endHours":6.937737759377846,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:32","startHours":11.73653568030707,"endHours":12.539681775860076,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:30","end":"05:19","startHours":4.508220820329997,"endHours":5.3113669158830055,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:07","startHours":5.110580391994754,"endHours":6.114513011436014,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:57","startHours":14.145973966966093,"endHours":14.9491200625191,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:58","end":"18:22","startHours":17.961704444731133,"endHours":18.36170444473113,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:10","end":"18:40","startHours":18.161704444731132,"endHours":18.66367075445176,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:55","end":"19:40","startHours":17.911704444731132,"endHours":19.661704444731132,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:32","startHours":23.736535680307068,"endHours":24.53968177586008,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:07","end":"07:37","startHours":6.114513011436014,"endHours":7.620411940597903,"quality":"auspicious"},{"name":"Roga","start":"07:37","end":"09:08","startHours":7.620411940597903,"endHours":9.126310869759793,"quality":"inauspicious"},{"name":"Udveg","start":"09:08","end":"10:38","startHours":9.126310869759793,"endHours":10.632209798921682,"quality":"inauspicious"},{"name":"Chala","start":"10:38","end":"12:08","startHours":10.632209798921682,"endHours":12.138108728083573,"quality":"neutral"},{"name":"Labha","start":"12:08","end":"13:39","startHours":12.138108728083573,"endHours":13.644007657245464,"quality":"auspicious"},{"name":"Amṛta","start":"13:39","end":"15:09","startHours":13.644007657245464,"endHours":15.149906586407353,"quality":"auspicious"},{"name":"Kāla","start":"15:09","end":"16:39","startHours":15.149906586407353,"endHours":16.65580551556924,"quality":"inauspicious"},{"name":"Śubha","start":"16:39","end":"18:10","startHours":16.65580551556924,"endHours":18.161704444731132,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:10","end":"19:39","startHours":18.161704444731132,"endHours":19.65580551556924,"quality":"auspicious"},{"name":"Kāla","start":"19:39","end":"21:09","startHours":19.65580551556924,"endHours":21.149906586407354,"quality":"inauspicious"},{"name":"Śubha","start":"21:09","end":"22:39","startHours":21.149906586407354,"endHours":22.644007657245464,"quality":"auspicious"},{"name":"Roga","start":"22:39","end":"00:08","startHours":22.644007657245464,"endHours":24.138108728083573,"quality":"inauspicious"},{"name":"Udveg","start":"00:08","end":"01:38","startHours":24.138108728083573,"endHours":25.632209798921682,"quality":"inauspicious"},{"name":"Chala","start":"01:38","end":"03:08","startHours":25.632209798921682,"endHours":27.12631086975979,"quality":"neutral"},{"name":"Labha","start":"03:08","end":"04:37","startHours":27.12631086975979,"endHours":28.620411940597904,"quality":"auspicious"},{"name":"Amṛta","start":"04:37","end":"06:07","startHours":28.620411940597904,"endHours":30.114513011436014,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:07","end":"07:07","startHours":6.114513011436014,"endHours":7.114513011436014,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:07","end":"08:07","startHours":7.114513011436014,"endHours":8.114513011436014,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:07","end":"09:07","startHours":8.114513011436014,"endHours":9.114513011436014,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:07","end":"10:07","startHours":9.114513011436014,"endHours":10.114513011436014,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:07","end":"11:07","startHours":10.114513011436014,"endHours":11.114513011436014,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:07","end":"12:07","startHours":11.114513011436014,"endHours":12.114513011436014,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:07","end":"13:07","startHours":12.114513011436014,"endHours":13.114513011436014,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:07","end":"14:07","startHours":13.114513011436014,"endHours":14.114513011436014,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:07","end":"15:07","startHours":14.114513011436014,"endHours":15.114513011436014,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:07","end":"16:07","startHours":15.114513011436014,"endHours":16.114513011436014,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:07","end":"17:07","startHours":16.114513011436014,"endHours":17.114513011436014,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:07","end":"18:07","startHours":17.114513011436014,"endHours":18.114513011436014,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:07","end":"19:07","startHours":18.114513011436014,"endHours":19.114513011436014,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:07","end":"20:07","startHours":19.114513011436014,"endHours":20.114513011436014,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:07","end":"21:07","startHours":20.114513011436014,"endHours":21.114513011436014,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:07","end":"22:07","startHours":21.114513011436014,"endHours":22.114513011436014,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:07","end":"23:07","startHours":22.114513011436014,"endHours":23.114513011436014,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:07","end":"00:07","startHours":23.114513011436014,"endHours":24.114513011436014,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:07","end":"01:07","startHours":24.114513011436014,"endHours":25.114513011436014,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:07","end":"02:07","startHours":25.114513011436014,"endHours":26.114513011436014,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:07","end":"03:07","startHours":26.114513011436014,"endHours":27.114513011436014,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:07","end":"04:07","startHours":27.114513011436014,"endHours":28.114513011436014,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:07","end":"05:07","startHours":28.114513011436014,"endHours":29.114513011436014,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:07","end":"06:07","startHours":29.114513011436014,"endHours":30.114513011436014,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"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":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-2.4735715645373992,"eotMinutes":10.844676314985584,"ayanamsa":23.4583}},"calendars":{"vikram_samvat":2028,"vikram_samvatsara":"Raktākṣī","saka_samvat":1893,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1378,"malayalam_era":1147,"nanakshahi_year":502,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Ekādaśī · Vikram 2028 Raktākṣī · Śaka 1893 Virodhakṛt"},"festivals":[{"id":"pashankusha-ekadashi","name":"Pāśāṅkuśā Ekādaśī","name_sanskrit":"पाशाङ्कुशा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Padmanābha (Viṣṇu)","significance":"Confers strength + wealth + son; equivalent to 1000 Aśvamedha-yajñas.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"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 September 30, 1971 CE · Erode, Tamil Nadu · Vidhyamitra","description":"September 30, 1971 CE for Erode, Tamil Nadu: Śukla Ekādaśī, sūryodaya 06:07, sūryāsta 18:10.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1971-09-30","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1971-09-30","sa":"https://sa.vidhyamitra.com/city/erode/1971-09-30","hi":"https://hi.vidhyamitra.com/city/erode/1971-09-30","x-default":"https://vidhyamitra.com/city/erode/1971-09-30"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T11:46:24.784Z","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":"2026-05-31T11:46:24.784Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T11:46:24.784Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}