{"id":"vidhyamitra:city-day:erode:2021-08-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2021-08-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2021-08-31","date_display":"August 31, 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":8,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459457.770833,"kali_year":5123,"ahargana":1870992.2708,"sun":{"sidereal_longitude":132.9844,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":51.9275,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":278.9431,"elapsed_within_tithi_degrees":2.9431},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4,"moon_longitude":51.9275,"elapsed_within_degrees":11.9275},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":184.9119},"karana":{"half_tithi_index":46,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":8,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459457.770833,"ahargana":1870992.2708,"kali_year":5123,"ayanamsa_lahiri":24.1556,"grahas":{"sun":{"sidereal_longitude":133.71948400000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":51.68578400000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false,"latitude":0.4778},"mars":{"sidereal_longitude":145.891684,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":156.67458399999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":301.61348399999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":173.001984,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":284.063084,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":45.8256,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":225.8256,"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":8,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459457.770833,"kali_year":5123,"ahargana":1870992.2708,"sun":{"sidereal_longitude":132.9844,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":51.9275,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":278.9431,"elapsed_within_tithi_degrees":2.9431},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4,"moon_longitude":51.9275,"elapsed_within_degrees":11.9275},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":184.9119},"karana":{"half_tithi_index":46,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.478,"elongation":81.057},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.478,"opposition_distance":98.943}},"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":"06:09","sunsetLocal":"18:29","solarNoonLocal":"12:19","dayLengthHours":12.346823707918961,"dayLengthDisplay":"12 Hours 20 Mins 49 Secs","nightLengthDisplay":"11 Hours 39 Mins 11 Secs","moonriseLocal":"00:29","moonsetLocal":"13:13","rahuKala":{"name":"Rāhu Kāla","start":"15:24","end":"16:57","startHours":15.403132768256619,"endHours":16.94648573174649,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:14","end":"10:46","startHours":9.229720914297136,"endHours":10.773073877787008,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:19","end":"13:52","startHours":12.316426841276877,"endHours":13.859779804766747,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:26","startHours":9.023940519165155,"endHours":9.43550130942912,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:39","end":"06:59","startHours":6.657465975147353,"endHours":6.986714607358525,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:44","startHours":11.904866051012911,"endHours":12.727987631540843,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:30","end":"05:19","startHours":4.4967718262615355,"endHours":5.319893406789466,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:09","startHours":5.1141130116574836,"endHours":6.143014987317397,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:12","startHours":14.374230792596704,"endHours":15.197352373124634,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:17","end":"18:41","startHours":18.28983869523636,"endHours":18.689838695236357,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:29","end":"19:00","startHours":18.489838695236358,"endHours":19.004289683066315,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:14","end":"19:59","startHours":18.239838695236358,"endHours":19.989838695236358,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:44","startHours":23.904866051012913,"endHours":24.727987631540845,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:09","end":"07:41","startHours":6.143014987317397,"endHours":7.686367950807266,"quality":"inauspicious"},{"name":"Udveg","start":"07:41","end":"09:14","startHours":7.686367950807266,"endHours":9.229720914297136,"quality":"inauspicious"},{"name":"Chala","start":"09:14","end":"10:46","startHours":9.229720914297136,"endHours":10.773073877787008,"quality":"neutral"},{"name":"Labha","start":"10:46","end":"12:19","startHours":10.773073877787008,"endHours":12.316426841276877,"quality":"auspicious"},{"name":"Amṛta","start":"12:19","end":"13:52","startHours":12.316426841276877,"endHours":13.859779804766747,"quality":"auspicious"},{"name":"Kāla","start":"13:52","end":"15:24","startHours":13.859779804766747,"endHours":15.403132768256619,"quality":"inauspicious"},{"name":"Śubha","start":"15:24","end":"16:57","startHours":15.403132768256619,"endHours":16.94648573174649,"quality":"auspicious"},{"name":"Roga","start":"16:57","end":"18:29","startHours":16.94648573174649,"endHours":18.489838695236358,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:29","end":"19:57","startHours":18.489838695236358,"endHours":19.94648573174649,"quality":"inauspicious"},{"name":"Śubha","start":"19:57","end":"21:24","startHours":19.94648573174649,"endHours":21.40313276825662,"quality":"auspicious"},{"name":"Roga","start":"21:24","end":"22:52","startHours":21.40313276825662,"endHours":22.859779804766745,"quality":"inauspicious"},{"name":"Udveg","start":"22:52","end":"00:19","startHours":22.859779804766745,"endHours":24.31642684127688,"quality":"inauspicious"},{"name":"Chala","start":"00:19","end":"01:46","startHours":24.31642684127688,"endHours":25.773073877787006,"quality":"neutral"},{"name":"Labha","start":"01:46","end":"03:14","startHours":25.773073877787006,"endHours":27.229720914297136,"quality":"auspicious"},{"name":"Amṛta","start":"03:14","end":"04:41","startHours":27.229720914297136,"endHours":28.686367950807266,"quality":"auspicious"},{"name":"Kāla","start":"04:41","end":"06:09","startHours":28.686367950807266,"endHours":30.143014987317397,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:09","end":"07:09","startHours":6.143014987317397,"endHours":7.143014987317397,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:09","end":"08:09","startHours":7.143014987317397,"endHours":8.143014987317397,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:09","end":"09:09","startHours":8.143014987317397,"endHours":9.143014987317397,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:09","end":"10:09","startHours":9.143014987317397,"endHours":10.143014987317397,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:09","end":"11:09","startHours":10.143014987317397,"endHours":11.143014987317397,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:09","end":"12:09","startHours":11.143014987317397,"endHours":12.143014987317397,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:09","end":"13:09","startHours":12.143014987317397,"endHours":13.143014987317397,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:09","end":"14:09","startHours":13.143014987317397,"endHours":14.143014987317397,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:09","end":"15:09","startHours":14.143014987317397,"endHours":15.143014987317397,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:09","end":"16:09","startHours":15.143014987317397,"endHours":16.143014987317397,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:09","end":"17:09","startHours":16.143014987317397,"endHours":17.143014987317397,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:09","end":"18:09","startHours":17.143014987317397,"endHours":18.143014987317397,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:09","end":"19:09","startHours":18.143014987317397,"endHours":19.143014987317397,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:09","end":"20:09","startHours":19.143014987317397,"endHours":20.143014987317397,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:09","end":"21:09","startHours":20.143014987317397,"endHours":21.143014987317397,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:09","end":"22:09","startHours":21.143014987317397,"endHours":22.143014987317397,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:09","end":"23:09","startHours":22.143014987317397,"endHours":23.143014987317397,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:09","end":"00:09","startHours":23.143014987317397,"endHours":24.143014987317397,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:09","end":"01:09","startHours":24.143014987317397,"endHours":25.143014987317397,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:09","end":"02:09","startHours":25.143014987317397,"endHours":26.143014987317397,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:09","end":"03:09","startHours":26.143014987317397,"endHours":27.143014987317397,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:09","end":"04:09","startHours":27.143014987317397,"endHours":28.143014987317397,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:09","end":"05:09","startHours":28.143014987317397,"endHours":29.143014987317397,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:09","end":"06:09","startHours":29.143014987317397,"endHours":30.143014987317397,"planetary_lord":"Saturn"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Maitra","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":8.61515337083501,"eotMinutes":0.14558952338733633,"ayanamsa":24.1556}},"calendars":{"vikram_samvat":2078,"vikram_samvatsara":"Ānanda","saka_samvat":1943,"saka_samvatsara":"Plava","bengali_samvat":1428,"malayalam_era":1197,"nanakshahi_year":552,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Navamī · Vikram 2078 Ānanda · Śaka 1943 Plava"},"festivals":[{"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":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","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 August 31, 2021 CE · Erode, Tamil Nadu · Vidhyamitra","description":"August 31, 2021 CE for Erode, Tamil Nadu: Kṛṣṇa Navamī, sūryodaya 06:09, sūryāsta 18:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2021-08-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2021-08-31","sa":"https://sa.vidhyamitra.com/city/erode/2021-08-31","hi":"https://hi.vidhyamitra.com/city/erode/2021-08-31","x-default":"https://vidhyamitra.com/city/erode/2021-08-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T23:37:08.164Z","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":"2026-05-14T23:37:08.164Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T23:37:08.164Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}