{"id":"vidhyamitra:city-day:erode:2099-09-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2099-09-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2099-09-13","date_display":"September 13, 2099 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":2099,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2487959.770833,"kali_year":5201,"ahargana":1899494.2708,"sun":{"sidereal_longitude":144.4076,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":121.6301,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":337.2225,"elapsed_within_tithi_degrees":1.2225},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":121.6301,"elapsed_within_degrees":1.6301},"yoga":{"number":20,"name":"Śiva","sum_longitude":266.0377},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"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":2099,"month":9,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2487959.770833,"ahargana":1899494.2708,"kali_year":5201,"ayanamsa_lahiri":25.2457,"grahas":{"sun":{"sidereal_longitude":145.368898,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":121.81959799999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false,"latitude":2.516},"mars":{"sidereal_longitude":5.740698000000009,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":164.687498,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":154.11069799999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":158.24789800000008,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":167.546198,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":335.6525,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":155.6525,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":2099,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2487959.770833,"kali_year":5201,"ahargana":1899494.2708,"sun":{"sidereal_longitude":144.4076,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":121.6301,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":337.2225,"elapsed_within_tithi_degrees":1.2225},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":121.6301,"elapsed_within_degrees":1.6301},"yoga":{"number":20,"name":"Śiva","sum_longitude":266.0377},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.516,"elongation":22.777},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.516,"opposition_distance":157.223}},"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":"06:08","sunsetLocal":"18:21","solarNoonLocal":"12:14","dayLengthHours":12.21312921170938,"dayLengthDisplay":"12 Hours 12 Mins 47 Secs","nightLengthDisplay":"11 Hours 47 Mins 13 Secs","moonriseLocal":"04:28","moonsetLocal":"16:53","rahuKala":{"name":"Rāhu Kāla","start":"16:49","end":"18:21","startHours":16.819545605559917,"endHours":18.346186757023588,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:14","end":"13:46","startHours":12.239622151168899,"endHours":13.76626330263257,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:18","end":"16:49","startHours":15.292904454096243,"endHours":16.819545605559917,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:59","end":"09:23","startHours":8.982787694713064,"endHours":9.389892001770043,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:39","end":"06:58","startHours":6.641937929135433,"endHours":6.967621374781016,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:39","startHours":11.83251784411192,"endHours":12.646726458225878,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:30","end":"05:19","startHours":4.504640317086292,"endHours":5.31884893120025,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:08","startHours":5.115296777671761,"endHours":6.133057545314209,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:17","end":"15:05","startHours":14.275143686453795,"endHours":15.089352300567754,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:09","end":"18:33","startHours":18.14618675702359,"endHours":18.546186757023587,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:21","end":"18:51","startHours":18.346186757023588,"endHours":18.855067140844813,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:06","end":"19:51","startHours":18.096186757023588,"endHours":19.846186757023588,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:39","startHours":23.83251784411192,"endHours":24.646726458225878,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:08","end":"07:40","startHours":6.133057545314209,"endHours":7.659698696777881,"quality":"inauspicious"},{"name":"Chala","start":"07:40","end":"09:11","startHours":7.659698696777881,"endHours":9.186339848241554,"quality":"neutral"},{"name":"Labha","start":"09:11","end":"10:43","startHours":9.186339848241554,"endHours":10.712980999705227,"quality":"auspicious"},{"name":"Amṛta","start":"10:43","end":"12:14","startHours":10.712980999705227,"endHours":12.239622151168899,"quality":"auspicious"},{"name":"Kāla","start":"12:14","end":"13:46","startHours":12.239622151168899,"endHours":13.76626330263257,"quality":"inauspicious"},{"name":"Śubha","start":"13:46","end":"15:18","startHours":13.76626330263257,"endHours":15.292904454096243,"quality":"auspicious"},{"name":"Roga","start":"15:18","end":"16:49","startHours":15.292904454096243,"endHours":16.819545605559917,"quality":"inauspicious"},{"name":"Udveg","start":"16:49","end":"18:21","startHours":16.819545605559917,"endHours":18.346186757023588,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:21","end":"19:49","startHours":18.346186757023588,"endHours":19.819545605559917,"quality":"auspicious"},{"name":"Roga","start":"19:49","end":"21:18","startHours":19.819545605559917,"endHours":21.292904454096245,"quality":"inauspicious"},{"name":"Udveg","start":"21:18","end":"22:46","startHours":21.292904454096245,"endHours":22.76626330263257,"quality":"inauspicious"},{"name":"Chala","start":"22:46","end":"00:14","startHours":22.76626330263257,"endHours":24.2396221511689,"quality":"neutral"},{"name":"Labha","start":"00:14","end":"01:43","startHours":24.2396221511689,"endHours":25.712980999705227,"quality":"auspicious"},{"name":"Amṛta","start":"01:43","end":"03:11","startHours":25.712980999705227,"endHours":27.186339848241552,"quality":"auspicious"},{"name":"Kāla","start":"03:11","end":"04:40","startHours":27.186339848241552,"endHours":28.65969869677788,"quality":"inauspicious"},{"name":"Śubha","start":"04:40","end":"06:08","startHours":28.65969869677788,"endHours":30.13305754531421,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.133057545314209,"endHours":7.133057545314209,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.133057545314209,"endHours":8.133057545314209,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.133057545314209,"endHours":9.133057545314209,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.133057545314209,"endHours":10.133057545314209,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.133057545314209,"endHours":11.133057545314209,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.133057545314209,"endHours":12.133057545314209,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.133057545314209,"endHours":13.133057545314209,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.133057545314209,"endHours":14.133057545314209,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.133057545314209,"endHours":15.133057545314209,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.133057545314209,"endHours":16.13305754531421,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.13305754531421,"endHours":17.13305754531421,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.13305754531421,"endHours":18.13305754531421,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.13305754531421,"endHours":19.13305754531421,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.13305754531421,"endHours":20.13305754531421,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.13305754531421,"endHours":21.13305754531421,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.13305754531421,"endHours":22.13305754531421,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.13305754531421,"endHours":23.13305754531421,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.13305754531421,"endHours":24.13305754531421,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.13305754531421,"endHours":25.13305754531421,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.13305754531421,"endHours":26.13305754531421,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.13305754531421,"endHours":27.13305754531421,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.13305754531421,"endHours":28.13305754531421,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.13305754531421,"endHours":29.13305754531421,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.13305754531421,"endHours":30.13305754531421,"planetary_lord":"Jupiter"}],"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":"West (Paścim)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":3.7188182164963086,"eotMinutes":4.753870929866006,"ayanamsa":25.2457}},"calendars":{"vikram_samvat":2156,"vikram_samvatsara":"Aṅgirasa","saka_samvat":2021,"saka_samvatsara":"Siddhārthī","bengali_samvat":1506,"malayalam_era":1275,"nanakshahi_year":630,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Caturdaśī · Vikram 2156 Aṅgirasa · Śaka 2021 Siddhārthī"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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 13, 2099 CE · Erode, Tamil Nadu · Vidhyamitra","description":"September 13, 2099 CE for Erode, Tamil Nadu: Kṛṣṇa Caturdaśī, sūryodaya 06:08, sūryāsta 18:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2099-09-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2099-09-13","sa":"https://sa.vidhyamitra.com/city/erode/2099-09-13","hi":"https://hi.vidhyamitra.com/city/erode/2099-09-13","x-default":"https://vidhyamitra.com/city/erode/2099-09-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T09:12:44.377Z","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":"2026-05-31T09:12:44.377Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T09:12:44.377Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}