{"id":"vidhyamitra:city-day:erode:2121-09-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2121-09-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2121-09-28","date_display":"September 28, 2121 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":2121,"month":9,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2496009.770833,"kali_year":5223,"ahargana":1907544.2708,"sun":{"sidereal_longitude":158.354,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":356.627,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":198.273,"elapsed_within_tithi_degrees":6.273},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":356.627,"elapsed_within_degrees":9.9604},"yoga":{"number":12,"name":"Dhruva","sum_longitude":154.9811},"karana":{"half_tithi_index":33,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2121,"month":9,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2496009.770833,"ahargana":1907544.2708,"kali_year":5223,"ayanamsa_lahiri":25.5536,"grahas":{"sun":{"sidereal_longitude":159.392829,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":358.620229,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false,"latitude":4.4957},"mars":{"sidereal_longitude":195.88732900000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":142.43712900000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":115.51022899999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":139.88162899999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":80.59722899999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":269.1248,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":89.1248,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"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":2121,"month":9,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2496009.770833,"kali_year":5223,"ahargana":1907544.2708,"sun":{"sidereal_longitude":158.354,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":356.627,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":198.273,"elapsed_within_tithi_degrees":6.273},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":356.627,"elapsed_within_degrees":9.9604},"yoga":{"number":12,"name":"Dhruva","sum_longitude":154.9811},"karana":{"half_tithi_index":33,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.496,"elongation":161.727},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.496,"opposition_distance":18.273}},"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":"18:11","solarNoonLocal":"12:09","dayLengthHours":12.0607654923582,"dayLengthDisplay":"12 Hours 03 Mins 39 Secs","nightLengthDisplay":"11 Hours 56 Mins 21 Secs","moonriseLocal":"19:16","moonsetLocal":"07:36","rahuKala":{"name":"Rāhu Kāla","start":"16:40","end":"18:11","startHours":16.67196056783737,"endHours":18.179556254382145,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:09","end":"13:39","startHours":12.149173508203045,"endHours":13.65676919474782,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:10","end":"16:40","startHours":15.164364881292595,"endHours":16.67196056783737,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:56","end":"09:20","startHours":8.932969376907526,"endHours":9.334994893319465,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:37","end":"06:57","startHours":6.62132265753887,"endHours":6.942943070668422,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:45","end":"12:33","startHours":11.747147991791104,"endHours":12.551199024614986,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:31","end":"05:19","startHours":4.510688696376185,"endHours":5.314739729200065,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:07","startHours":5.113726970994095,"endHours":6.118790762023945,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:58","startHours":14.159301090262746,"endHours":14.963352123086626,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:59","end":"18:23","startHours":17.979556254382146,"endHours":18.379556254382145,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:11","end":"18:41","startHours":18.179556254382145,"endHours":18.68208814989707,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:56","end":"19:41","startHours":17.929556254382145,"endHours":19.679556254382145,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:45","end":"00:33","startHours":23.747147991791106,"endHours":24.551199024614984,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:07","end":"07:38","startHours":6.118790762023945,"endHours":7.62638644856872,"quality":"inauspicious"},{"name":"Chala","start":"07:38","end":"09:08","startHours":7.62638644856872,"endHours":9.133982135113495,"quality":"neutral"},{"name":"Labha","start":"09:08","end":"10:38","startHours":9.133982135113495,"endHours":10.64157782165827,"quality":"auspicious"},{"name":"Amṛta","start":"10:38","end":"12:09","startHours":10.64157782165827,"endHours":12.149173508203045,"quality":"auspicious"},{"name":"Kāla","start":"12:09","end":"13:39","startHours":12.149173508203045,"endHours":13.65676919474782,"quality":"inauspicious"},{"name":"Śubha","start":"13:39","end":"15:10","startHours":13.65676919474782,"endHours":15.164364881292595,"quality":"auspicious"},{"name":"Roga","start":"15:10","end":"16:40","startHours":15.164364881292595,"endHours":16.67196056783737,"quality":"inauspicious"},{"name":"Udveg","start":"16:40","end":"18:11","startHours":16.67196056783737,"endHours":18.179556254382145,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:11","end":"19:40","startHours":18.179556254382145,"endHours":19.67196056783737,"quality":"auspicious"},{"name":"Roga","start":"19:40","end":"21:10","startHours":19.67196056783737,"endHours":21.164364881292595,"quality":"inauspicious"},{"name":"Udveg","start":"21:10","end":"22:39","startHours":21.164364881292595,"endHours":22.65676919474782,"quality":"inauspicious"},{"name":"Chala","start":"22:39","end":"00:09","startHours":22.65676919474782,"endHours":24.149173508203045,"quality":"neutral"},{"name":"Labha","start":"00:09","end":"01:38","startHours":24.149173508203045,"endHours":25.64157782165827,"quality":"auspicious"},{"name":"Amṛta","start":"01:38","end":"03:08","startHours":25.64157782165827,"endHours":27.133982135113495,"quality":"auspicious"},{"name":"Kāla","start":"03:08","end":"04:38","startHours":27.133982135113495,"endHours":28.62638644856872,"quality":"inauspicious"},{"name":"Śubha","start":"04:38","end":"06:07","startHours":28.62638644856872,"endHours":30.118790762023945,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:07","end":"07:07","startHours":6.118790762023945,"endHours":7.118790762023945,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:07","end":"08:07","startHours":7.118790762023945,"endHours":8.118790762023945,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:07","end":"09:07","startHours":8.118790762023945,"endHours":9.118790762023945,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:07","end":"10:07","startHours":9.118790762023945,"endHours":10.118790762023945,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:07","end":"11:07","startHours":10.118790762023945,"endHours":11.118790762023945,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:07","end":"12:07","startHours":11.118790762023945,"endHours":12.118790762023945,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:07","end":"13:07","startHours":12.118790762023945,"endHours":13.118790762023945,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:07","end":"14:07","startHours":13.118790762023945,"endHours":14.118790762023945,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:07","end":"15:07","startHours":14.118790762023945,"endHours":15.118790762023945,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:07","end":"16:07","startHours":15.118790762023945,"endHours":16.118790762023945,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:07","end":"17:07","startHours":16.118790762023945,"endHours":17.118790762023945,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:07","end":"18:07","startHours":17.118790762023945,"endHours":18.118790762023945,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:07","end":"19:07","startHours":18.118790762023945,"endHours":19.118790762023945,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:07","end":"20:07","startHours":19.118790762023945,"endHours":20.118790762023945,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:07","end":"21:07","startHours":20.118790762023945,"endHours":21.118790762023945,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:07","end":"22:07","startHours":21.118790762023945,"endHours":22.118790762023945,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:07","end":"23:07","startHours":22.118790762023945,"endHours":23.118790762023945,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:07","end":"00:07","startHours":23.118790762023945,"endHours":24.118790762023945,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:07","end":"01:07","startHours":24.118790762023945,"endHours":25.118790762023945,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:07","end":"02:07","startHours":25.118790762023945,"endHours":26.118790762023945,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:07","end":"03:07","startHours":26.118790762023945,"endHours":27.118790762023945,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:07","end":"04:07","startHours":27.118790762023945,"endHours":28.118790762023945,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:07","end":"05:07","startHours":28.118790762023945,"endHours":29.118790762023945,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:07","end":"06:07","startHours":29.118790762023945,"endHours":30.118790762023945,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"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":-1.965297823886511,"eotMinutes":10.180789507817288,"ayanamsa":25.5536}},"calendars":{"vikram_samvat":2178,"vikram_samvatsara":"Jaya","saka_samvat":2043,"saka_samvatsara":"Vṛṣa","bengali_samvat":1528,"malayalam_era":1297,"nanakshahi_year":652,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Dvitīyā · Vikram 2178 Jaya · Śaka 2043 Vṛṣa"},"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}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 28, 2121 CE · Erode, Tamil Nadu · Vidhyamitra","description":"September 28, 2121 CE for Erode, Tamil Nadu: Kṛṣṇa Dvitīyā, sūryodaya 06:07, sūryāsta 18:11.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2121-09-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2121-09-28","sa":"https://sa.vidhyamitra.com/city/erode/2121-09-28","hi":"https://hi.vidhyamitra.com/city/erode/2121-09-28","x-default":"https://vidhyamitra.com/city/erode/2121-09-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-22T14:41:04.628Z","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":"2026-05-22T14:41:04.629Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-22T14:41:04.629Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}