{"id":"vidhyamitra:city-day:erode:2021-09-24:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2021-09-24","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2021-09-24","date_display":"September 24, 2021 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":2021,"month":9,"day":24,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459481.770833,"kali_year":5123,"ahargana":1871016.2708,"sun":{"sidereal_longitude":156.2747,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":14.0463,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":217.7716,"elapsed_within_tithi_degrees":1.7716},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":14.0463,"elapsed_within_degrees":0.7129},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":170.321},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2021,"month":9,"day":24,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459481.770833,"ahargana":1871016.2708,"kali_year":5123,"ayanamsa_lahiri":24.1566,"grahas":{"sun":{"sidereal_longitude":157.06876699999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":12.10586699999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false,"latitude":-2.2827},"mars":{"sidereal_longitude":161.367567,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":180.72066700000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":299.10296700000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":200.628867,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":282.995267,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":44.554,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":224.554,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":2021,"month":9,"day":24,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459481.770833,"kali_year":5123,"ahargana":1871016.2708,"sun":{"sidereal_longitude":156.2747,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":14.0463,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":217.7716,"elapsed_within_tithi_degrees":1.7716},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":14.0463,"elapsed_within_degrees":0.7129},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":170.321},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.283,"elongation":142.228},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.283,"opposition_distance":37.772}},"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":"18:13","solarNoonLocal":"12:10","dayLengthHours":12.100248892570534,"dayLengthDisplay":"12 Hours 06 Mins 01 Secs","nightLengthDisplay":"11 Hours 53 Mins 59 Secs","moonriseLocal":"20:17","moonsetLocal":"08:44","rahuKala":{"name":"Rāhu Kāla","start":"10:40","end":"12:10","startHours":10.659770381865709,"endHours":12.172301493437025,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:12","end":"16:43","startHours":15.197363716579659,"endHours":16.709894828150976,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:38","end":"09:09","startHours":7.634708158723076,"endHours":9.147239270294392,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:21","startHours":8.945568455418218,"endHours":9.34891008517057,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:57","startHours":6.626354084342198,"endHours":6.949027388144079,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:35","startHours":11.768959863684675,"endHours":12.575643123189376,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:31","end":"05:19","startHours":4.508810528142355,"endHours":5.315493787647057,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:07","startHours":5.1138229727708815,"endHours":6.12217704715176,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:00","startHours":14.18900964219878,"endHours":14.995692901703482,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:01","end":"18:25","startHours":18.022425939722293,"endHours":18.42242593972229,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:13","end":"18:44","startHours":18.222425939722292,"endHours":18.72660297691273,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:58","end":"19:43","startHours":17.972425939722292,"endHours":19.722425939722292,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:35","startHours":23.768959863684675,"endHours":24.575643123189376,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:07","end":"07:38","startHours":6.12217704715176,"endHours":7.634708158723076,"quality":"neutral"},{"name":"Labha","start":"07:38","end":"09:09","startHours":7.634708158723076,"endHours":9.147239270294392,"quality":"auspicious"},{"name":"Amṛta","start":"09:09","end":"10:40","startHours":9.147239270294392,"endHours":10.659770381865709,"quality":"auspicious"},{"name":"Kāla","start":"10:40","end":"12:10","startHours":10.659770381865709,"endHours":12.172301493437025,"quality":"inauspicious"},{"name":"Śubha","start":"12:10","end":"13:41","startHours":12.172301493437025,"endHours":13.684832605008342,"quality":"auspicious"},{"name":"Roga","start":"13:41","end":"15:12","startHours":13.684832605008342,"endHours":15.197363716579659,"quality":"inauspicious"},{"name":"Udveg","start":"15:12","end":"16:43","startHours":15.197363716579659,"endHours":16.709894828150976,"quality":"inauspicious"},{"name":"Chala","start":"16:43","end":"18:13","startHours":16.709894828150976,"endHours":18.222425939722292,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:13","end":"19:43","startHours":18.222425939722292,"endHours":19.709894828150976,"quality":"inauspicious"},{"name":"Udveg","start":"19:43","end":"21:12","startHours":19.709894828150976,"endHours":21.19736371657966,"quality":"inauspicious"},{"name":"Chala","start":"21:12","end":"22:41","startHours":21.19736371657966,"endHours":22.684832605008342,"quality":"neutral"},{"name":"Labha","start":"22:41","end":"00:10","startHours":22.684832605008342,"endHours":24.172301493437025,"quality":"auspicious"},{"name":"Amṛta","start":"00:10","end":"01:40","startHours":24.172301493437025,"endHours":25.65977038186571,"quality":"auspicious"},{"name":"Kāla","start":"01:40","end":"03:09","startHours":25.65977038186571,"endHours":27.147239270294392,"quality":"inauspicious"},{"name":"Śubha","start":"03:09","end":"04:38","startHours":27.147239270294392,"endHours":28.634708158723075,"quality":"auspicious"},{"name":"Roga","start":"04:38","end":"06:07","startHours":28.634708158723075,"endHours":30.12217704715176,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:07","end":"07:07","startHours":6.12217704715176,"endHours":7.12217704715176,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:07","end":"08:07","startHours":7.12217704715176,"endHours":8.122177047151759,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:07","end":"09:07","startHours":8.122177047151759,"endHours":9.122177047151759,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:07","end":"10:07","startHours":9.122177047151759,"endHours":10.122177047151759,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:07","end":"11:07","startHours":10.122177047151759,"endHours":11.122177047151759,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:07","end":"12:07","startHours":11.122177047151759,"endHours":12.122177047151759,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:07","end":"13:07","startHours":12.122177047151759,"endHours":13.122177047151759,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:07","end":"14:07","startHours":13.122177047151759,"endHours":14.122177047151759,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:07","end":"15:07","startHours":14.122177047151759,"endHours":15.122177047151759,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:07","end":"16:07","startHours":15.122177047151759,"endHours":16.12217704715176,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:07","end":"17:07","startHours":16.12217704715176,"endHours":17.12217704715176,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:07","end":"18:07","startHours":17.12217704715176,"endHours":18.12217704715176,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:07","end":"19:07","startHours":18.12217704715176,"endHours":19.12217704715176,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:07","end":"20:07","startHours":19.12217704715176,"endHours":20.12217704715176,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:07","end":"21:07","startHours":20.12217704715176,"endHours":21.12217704715176,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:07","end":"22:07","startHours":21.12217704715176,"endHours":22.12217704715176,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:07","end":"23:07","startHours":22.12217704715176,"endHours":23.12217704715176,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:07","end":"00:07","startHours":23.12217704715176,"endHours":24.12217704715176,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:07","end":"01:07","startHours":24.12217704715176,"endHours":25.12217704715176,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:07","end":"02:07","startHours":25.12217704715176,"endHours":26.12217704715176,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:07","end":"03:07","startHours":26.12217704715176,"endHours":27.12217704715176,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:07","end":"04:07","startHours":27.12217704715176,"endHours":28.12217704715176,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:07","end":"05:07","startHours":28.12217704715176,"endHours":29.12217704715176,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:07","end":"06:07","startHours":29.12217704715176,"endHours":30.12217704715176,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","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":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-0.48733695677300237,"eotMinutes":8.793110393778392,"ayanamsa":24.1566}},"calendars":{"vikram_samvat":2078,"vikram_samvatsara":"Ānanda","saka_samvat":1943,"saka_samvatsara":"Plava","bengali_samvat":1428,"malayalam_era":1197,"nanakshahi_year":552,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Caturthī · Vikram 2078 Ānanda · Śaka 1943 Plava"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4},{"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":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 24, 2021 CE · Erode, Tamil Nadu · Vidhyamitra","description":"September 24, 2021 CE for Erode, Tamil Nadu: Kṛṣṇa Caturthī, sūryodaya 06:07, sūryāsta 18:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2021-09-24","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2021-09-24","sa":"https://sa.vidhyamitra.com/city/erode/2021-09-24","hi":"https://hi.vidhyamitra.com/city/erode/2021-09-24","x-default":"https://vidhyamitra.com/city/erode/2021-09-24"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T04:40:37.337Z","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":"2026-05-15T04:40:37.337Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T04:40:37.337Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}