{"id":"vidhyamitra:city-day:erode:1997-09-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1997-09-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1997-09-01","date_display":"September 1, 1997 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":1997,"month":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450692.770833,"kali_year":5099,"ahargana":1862227.2708,"sun":{"sidereal_longitude":134.1505,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":124.1169,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":349.9664,"elapsed_within_tithi_degrees":1.9664},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":124.1169,"elapsed_within_degrees":4.1169},"yoga":{"number":20,"name":"Śiva","sum_longitude":258.2675},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1997,"month":9,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450692.770833,"ahargana":1862227.2708,"kali_year":5099,"ayanamsa_lahiri":23.8204,"grahas":{"sun":{"sidereal_longitude":134.831972,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":124.46057199999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false,"latitude":-1.9795},"mars":{"sidereal_longitude":197.388372,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":134.07697199999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":290.431872,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":true},"venus":{"sidereal_longitude":173.28887199999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":355.720472,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":150.2375,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":330.2375,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"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":1997,"month":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450692.770833,"kali_year":5099,"ahargana":1862227.2708,"sun":{"sidereal_longitude":134.1505,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":124.1169,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":349.9664,"elapsed_within_tithi_degrees":1.9664},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":124.1169,"elapsed_within_degrees":4.1169},"yoga":{"number":20,"name":"Śiva","sum_longitude":258.2675},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.98,"elongation":10.034},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.98,"opposition_distance":169.966}},"eclipse_window_40days":[{"offset_days":1,"type":"solar","occurs":true,"moon_latitude":-1.043,"elongation":1.659}]},"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":"18:29","solarNoonLocal":"12:19","dayLengthHours":12.338792879138346,"dayLengthDisplay":"12 Hours 20 Mins 20 Secs","nightLengthDisplay":"11 Hours 39 Mins 40 Secs","moonriseLocal":"05:25","moonsetLocal":"17:49","rahuKala":{"name":"Rāhu Kāla","start":"07:41","end":"09:14","startHours":7.683872373471896,"endHours":9.226221483364188,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:46","end":"12:19","startHours":10.768570593256483,"endHours":12.310919703148777,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:51","end":"15:24","startHours":13.853268813041069,"endHours":15.395617922933361,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:26","startHours":9.020574935378551,"endHours":9.431868031349829,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:39","end":"06:59","startHours":6.655639633543701,"endHours":6.984674110320723,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:43","startHours":11.899626607177499,"endHours":12.722212799120054,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:30","end":"05:19","startHours":4.49635087969449,"endHours":5.3189370716370465,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:08","startHours":5.113290523651408,"endHours":6.141523263579603,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:11","startHours":14.367385183005169,"endHours":15.189971374947726,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:17","end":"18:41","startHours":18.28031614271795,"endHours":18.68031614271795,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:29","end":"19:00","startHours":18.48031614271795,"endHours":18.994432512682046,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:14","end":"19:59","startHours":18.23031614271795,"endHours":19.98031614271795,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:43","startHours":23.8996266071775,"endHours":24.722212799120054,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:08","end":"07:41","startHours":6.141523263579603,"endHours":7.683872373471896,"quality":"auspicious"},{"name":"Kāla","start":"07:41","end":"09:14","startHours":7.683872373471896,"endHours":9.226221483364188,"quality":"inauspicious"},{"name":"Śubha","start":"09:14","end":"10:46","startHours":9.226221483364188,"endHours":10.768570593256483,"quality":"auspicious"},{"name":"Roga","start":"10:46","end":"12:19","startHours":10.768570593256483,"endHours":12.310919703148777,"quality":"inauspicious"},{"name":"Udveg","start":"12:19","end":"13:51","startHours":12.310919703148777,"endHours":13.853268813041069,"quality":"inauspicious"},{"name":"Chala","start":"13:51","end":"15:24","startHours":13.853268813041069,"endHours":15.395617922933361,"quality":"neutral"},{"name":"Labha","start":"15:24","end":"16:56","startHours":15.395617922933361,"endHours":16.937967032825657,"quality":"auspicious"},{"name":"Amṛta","start":"16:56","end":"18:29","startHours":16.937967032825657,"endHours":18.48031614271795,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:29","end":"19:56","startHours":18.48031614271795,"endHours":19.937967032825657,"quality":"neutral"},{"name":"Labha","start":"19:56","end":"21:24","startHours":19.937967032825657,"endHours":21.39561792293336,"quality":"auspicious"},{"name":"Amṛta","start":"21:24","end":"22:51","startHours":21.39561792293336,"endHours":22.85326881304107,"quality":"auspicious"},{"name":"Kāla","start":"22:51","end":"00:19","startHours":22.85326881304107,"endHours":24.310919703148777,"quality":"inauspicious"},{"name":"Śubha","start":"00:19","end":"01:46","startHours":24.310919703148777,"endHours":25.768570593256484,"quality":"auspicious"},{"name":"Roga","start":"01:46","end":"03:14","startHours":25.768570593256484,"endHours":27.226221483364192,"quality":"inauspicious"},{"name":"Udveg","start":"03:14","end":"04:41","startHours":27.226221483364192,"endHours":28.683872373471896,"quality":"inauspicious"},{"name":"Chala","start":"04:41","end":"06:08","startHours":28.683872373471896,"endHours":30.141523263579604,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.141523263579603,"endHours":7.141523263579603,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.141523263579603,"endHours":8.141523263579604,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.141523263579604,"endHours":9.141523263579604,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.141523263579604,"endHours":10.141523263579604,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.141523263579604,"endHours":11.141523263579604,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.141523263579604,"endHours":12.141523263579604,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.141523263579604,"endHours":13.141523263579604,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.141523263579604,"endHours":14.141523263579604,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.141523263579604,"endHours":15.141523263579604,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.141523263579604,"endHours":16.141523263579604,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.141523263579604,"endHours":17.141523263579604,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.141523263579604,"endHours":18.141523263579604,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.141523263579604,"endHours":19.141523263579604,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.141523263579604,"endHours":20.141523263579604,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.141523263579604,"endHours":21.141523263579604,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.141523263579604,"endHours":22.141523263579604,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.141523263579604,"endHours":23.141523263579604,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.141523263579604,"endHours":24.141523263579604,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.141523263579604,"endHours":25.141523263579604,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.141523263579604,"endHours":26.141523263579604,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.141523263579604,"endHours":27.141523263579604,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.141523263579604,"endHours":28.141523263579604,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.141523263579604,"endHours":29.141523263579604,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.141523263579604,"endHours":30.141523263579604,"planetary_lord":"Venus"}],"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":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":8.324817222939078,"eotMinutes":0.47601781107335894,"ayanamsa":23.8204}},"calendars":{"vikram_samvat":2054,"vikram_samvatsara":"Vikṛti","saka_samvat":1919,"saka_samvatsara":"Īśvara","bengali_samvat":1404,"malayalam_era":1173,"nanakshahi_year":528,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Amāvasyā · Vikram 2054 Vikṛti · Śaka 1919 Īśvara"},"festivals":[{"id":"mahalaya-amavasya","name":"Mahālaya Amāvasyā (Sarvapitṛ Amāvasyā)","name_sanskrit":"महालय अमावस्या","tradition":"Pan-Hindu","associated_deity":"Pitṛ-deva","significance":"Final day of Pitṛ-Pakṣa; tarpaṇa for all ancestors.","vrata":true,"detection":{"tithi_number":30,"tithi_paksha":"Kṛṣṇa","lunar_month":"Bhādrapada"},"precedence":1},{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","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 1, 1997 CE · Erode, Tamil Nadu · Vidhyamitra","description":"September 1, 1997 CE for Erode, Tamil Nadu: Kṛṣṇa Amāvasyā, sūryodaya 06:08, sūryāsta 18:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1997-09-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1997-09-01","sa":"https://sa.vidhyamitra.com/city/erode/1997-09-01","hi":"https://hi.vidhyamitra.com/city/erode/1997-09-01","x-default":"https://vidhyamitra.com/city/erode/1997-09-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T01:51:42.578Z","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":"2026-05-17T01:51:42.578Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T01:51:42.578Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}