{"id":"vidhyamitra:city-day:erode:1975-04-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1975-04-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1975-04-12","date_display":"April 12, 1975 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":1975,"month":4,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2442514.770833,"kali_year":5076,"ahargana":1854049.2708,"sun":{"sidereal_longitude":358.2079,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":2.3517,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":4.1439,"elapsed_within_tithi_degrees":4.1439},"nakshatra":{"number":1,"name":"Aśvinī","pada":1,"moon_longitude":2.3517,"elapsed_within_degrees":2.3517},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":0.5596},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"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":1975,"month":4,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2442514.770833,"ahargana":1854049.2708,"kali_year":5076,"ayanamsa_lahiri":23.5076,"grahas":{"sun":{"sidereal_longitude":358.010031,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":1.9445309999999836,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false,"latitude":2.9621},"mars":{"sidereal_longitude":307.00893099999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":350.907731,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":342.451531,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":34.613631,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":79.29803099999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":223.5473,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":43.5473,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":1975,"month":4,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2442514.770833,"kali_year":5076,"ahargana":1854049.2708,"sun":{"sidereal_longitude":358.2079,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":2.3517,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":4.1439,"elapsed_within_tithi_degrees":4.1439},"nakshatra":{"number":1,"name":"Aśvinī","pada":1,"moon_longitude":2.3517,"elapsed_within_degrees":2.3517},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":0.5596},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.962,"elongation":4.144},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.962,"opposition_distance":175.856}},"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":"06:10","sunsetLocal":"18:30","solarNoonLocal":"12:20","dayLengthHours":12.340551190876461,"dayLengthDisplay":"12 Hours 20 Mins 26 Secs","nightLengthDisplay":"11 Hours 39 Mins 34 Secs","moonriseLocal":"06:26","moonsetLocal":"18:46","rahuKala":{"name":"Rāhu Kāla","start":"09:15","end":"10:48","startHours":9.251107221606572,"endHours":10.793676120466131,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:53","end":"15:25","startHours":13.878813918185244,"endHours":15.421382817044803,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:10","end":"07:43","startHours":6.165969423887457,"endHours":7.708538322747015,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:03","end":"09:27","startHours":9.045431368425298,"endHours":9.456783074787847,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:41","end":"07:01","startHours":6.680159056840643,"endHours":7.009240421930682,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:45","startHours":11.924893312963139,"endHours":12.747596725688236,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:31","end":"05:21","startHours":4.520562598437262,"endHours":5.34326601116236,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:08","end":"06:10","startHours":5.137590157981085,"endHours":6.165969423887457,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:24","end":"15:13","startHours":14.393003551138431,"endHours":15.215706963863529,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:18","end":"18:42","startHours":18.30652061476392,"endHours":18.706520614763917,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:30","end":"19:01","startHours":18.506520614763918,"endHours":19.020710247717105,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:15","end":"20:00","startHours":18.256520614763918,"endHours":20.006520614763918,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:45","startHours":23.92489331296314,"endHours":24.747596725688236,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:10","end":"07:43","startHours":6.165969423887457,"endHours":7.708538322747015,"quality":"inauspicious"},{"name":"Śubha","start":"07:43","end":"09:15","startHours":7.708538322747015,"endHours":9.251107221606572,"quality":"auspicious"},{"name":"Roga","start":"09:15","end":"10:48","startHours":9.251107221606572,"endHours":10.793676120466131,"quality":"inauspicious"},{"name":"Udveg","start":"10:48","end":"12:20","startHours":10.793676120466131,"endHours":12.336245019325688,"quality":"inauspicious"},{"name":"Chala","start":"12:20","end":"13:53","startHours":12.336245019325688,"endHours":13.878813918185244,"quality":"neutral"},{"name":"Labha","start":"13:53","end":"15:25","startHours":13.878813918185244,"endHours":15.421382817044803,"quality":"auspicious"},{"name":"Amṛta","start":"15:25","end":"16:58","startHours":15.421382817044803,"endHours":16.96395171590436,"quality":"auspicious"},{"name":"Kāla","start":"16:58","end":"18:30","startHours":16.96395171590436,"endHours":18.506520614763918,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:30","end":"19:58","startHours":18.506520614763918,"endHours":19.96395171590436,"quality":"auspicious"},{"name":"Amṛta","start":"19:58","end":"21:25","startHours":19.96395171590436,"endHours":21.4213828170448,"quality":"auspicious"},{"name":"Kāla","start":"21:25","end":"22:53","startHours":21.4213828170448,"endHours":22.878813918185244,"quality":"inauspicious"},{"name":"Śubha","start":"22:53","end":"00:20","startHours":22.878813918185244,"endHours":24.336245019325688,"quality":"auspicious"},{"name":"Roga","start":"00:20","end":"01:48","startHours":24.336245019325688,"endHours":25.79367612046613,"quality":"inauspicious"},{"name":"Udveg","start":"01:48","end":"03:15","startHours":25.79367612046613,"endHours":27.251107221606574,"quality":"inauspicious"},{"name":"Chala","start":"03:15","end":"04:43","startHours":27.251107221606574,"endHours":28.708538322747014,"quality":"neutral"},{"name":"Labha","start":"04:43","end":"06:10","startHours":28.708538322747014,"endHours":30.165969423887457,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:10","end":"07:10","startHours":6.165969423887457,"endHours":7.165969423887457,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:10","end":"08:10","startHours":7.165969423887457,"endHours":8.165969423887457,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:10","end":"09:10","startHours":8.165969423887457,"endHours":9.165969423887457,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:10","end":"10:10","startHours":9.165969423887457,"endHours":10.165969423887457,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:10","end":"11:10","startHours":10.165969423887457,"endHours":11.165969423887457,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:10","end":"12:10","startHours":11.165969423887457,"endHours":12.165969423887457,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:10","end":"13:10","startHours":12.165969423887457,"endHours":13.165969423887457,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:10","end":"14:10","startHours":13.165969423887457,"endHours":14.165969423887457,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:10","end":"15:10","startHours":14.165969423887457,"endHours":15.165969423887457,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:10","end":"16:10","startHours":15.165969423887457,"endHours":16.165969423887457,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:10","end":"17:10","startHours":16.165969423887457,"endHours":17.165969423887457,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:10","end":"18:10","startHours":17.165969423887457,"endHours":18.165969423887457,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:10","end":"19:10","startHours":18.165969423887457,"endHours":19.165969423887457,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:10","end":"20:10","startHours":19.165969423887457,"endHours":20.165969423887457,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:10","end":"21:10","startHours":20.165969423887457,"endHours":21.165969423887457,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:10","end":"22:10","startHours":21.165969423887457,"endHours":22.165969423887457,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:10","end":"23:10","startHours":22.165969423887457,"endHours":23.165969423887457,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:10","end":"00:10","startHours":23.165969423887457,"endHours":24.165969423887457,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:10","end":"01:10","startHours":24.165969423887457,"endHours":25.165969423887457,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:10","end":"02:10","startHours":25.165969423887457,"endHours":26.165969423887457,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:10","end":"03:10","startHours":26.165969423887457,"endHours":27.165969423887457,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:10","end":"04:10","startHours":27.165969423887457,"endHours":28.165969423887457,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:10","end":"05:10","startHours":28.165969423887457,"endHours":29.165969423887457,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:10","end":"06:10","startHours":29.165969423887457,"endHours":30.165969423887457,"planetary_lord":"Mercury"}],"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":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":8.388432571288597,"eotMinutes":-1.043501159541278,"ayanamsa":23.5076}},"calendars":{"vikram_samvat":2032,"vikram_samvatsara":"Vibhava","saka_samvat":1897,"saka_samvatsara":"Rākṣasa","bengali_samvat":1382,"malayalam_era":1151,"nanakshahi_year":506,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Pratipada · Vikram 2032 Vibhava · Śaka 1897 Rākṣasa"},"festivals":[{"id":"chaitra-navratri-start","name":"Caitra Navrātri Start (Gudhi Padwā)","name_sanskrit":"चैत्र नवरात्रि आरम्भ","tradition":"Shakta","associated_deity":"Devī Durgā (9 forms over 9 nights)","significance":"Spring Navrātri begins; Vasanta-pakṣa Devī worship. Maharashtra: Gudhi Padwā. South: Ugadi. Sindhi: Cheti Chand.","vrata":true,"detection":{"tithi_number":1,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":1}],"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":[{"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 April 12, 1975 CE · Erode, Tamil Nadu · Vidhyamitra","description":"April 12, 1975 CE for Erode, Tamil Nadu: Śukla Pratipada, sūryodaya 06:10, sūryāsta 18:30.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1975-04-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1975-04-12","sa":"https://sa.vidhyamitra.com/city/erode/1975-04-12","hi":"https://hi.vidhyamitra.com/city/erode/1975-04-12","x-default":"https://vidhyamitra.com/city/erode/1975-04-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T21:13:15.990Z","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":"2026-06-01T21:13:15.991Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T21:13:15.991Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}