{"id":"vidhyamitra:city-day:erode:2109-01-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2109-01-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2109-01-15","date_display":"January 15, 2109 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":2109,"month":1,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2491370.770833,"kali_year":5210,"ahargana":1902905.2708,"sun":{"sidereal_longitude":268.9782,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":63.6424,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":154.6641,"elapsed_within_tithi_degrees":10.6641},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":63.6424,"elapsed_within_degrees":10.309},"yoga":{"number":25,"name":"Brahma","sum_longitude":332.6206},"karana":{"half_tithi_index":25,"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":2109,"month":1,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2491370.770833,"ahargana":1902905.2708,"kali_year":5210,"ayanamsa_lahiri":25.3762,"grahas":{"sun":{"sidereal_longitude":269.36047299999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":64.85907299999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false,"latitude":-4.4989},"mars":{"sidereal_longitude":299.758373,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":245.07877299999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":82.70277299999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":true},"venus":{"sidereal_longitude":257.2612730000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":274.3424729999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":154.9213,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":334.9213,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"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":2109,"month":1,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2491370.770833,"kali_year":5210,"ahargana":1902905.2708,"sun":{"sidereal_longitude":268.9782,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":63.6424,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":154.6641,"elapsed_within_tithi_degrees":10.6641},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":63.6424,"elapsed_within_degrees":10.309},"yoga":{"number":25,"name":"Brahma","sum_longitude":332.6206},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.499,"elongation":154.664},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.499,"opposition_distance":25.336}},"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":"06:43","sunsetLocal":"18:14","solarNoonLocal":"12:28","dayLengthHours":11.527609844574833,"dayLengthDisplay":"11 Hours 31 Mins 39 Secs","nightLengthDisplay":"12 Hours 28 Mins 21 Secs","moonriseLocal":"16:28","moonsetLocal":"05:13","rahuKala":{"name":"Rāhu Kāla","start":"15:21","end":"16:48","startHours":15.35658828524593,"endHours":16.797539515817782,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:36","end":"11:02","startHours":9.592783362958514,"endHours":11.033734593530367,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:28","end":"13:55","startHours":12.47468582410222,"endHours":13.915637054674075,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:24","end":"09:47","startHours":9.4006565322156,"endHours":9.784910193701426,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:11","end":"07:30","startHours":7.191197978672089,"endHours":7.498600907860752,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:52","startHours":12.090432162616393,"endHours":12.858939485588047,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:10","end":"05:57","startHours":5.173866255871493,"endHours":5.942373578843149,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:45","end":"06:43","startHours":5.750246748100235,"endHours":6.710880901814805,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:24","end":"15:10","startHours":14.395954131531361,"endHours":15.164461454503018,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:02","end":"18:26","startHours":18.038490746389638,"endHours":18.438490746389636,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:14","end":"18:43","startHours":18.238490746389637,"endHours":18.718807823246923,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:59","end":"19:44","startHours":17.988490746389637,"endHours":19.738490746389637,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:52","startHours":24.09043216261639,"endHours":24.85893948558805,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:43","end":"08:09","startHours":6.710880901814805,"endHours":8.151832132386659,"quality":"inauspicious"},{"name":"Udveg","start":"08:09","end":"09:36","startHours":8.151832132386659,"endHours":9.592783362958514,"quality":"inauspicious"},{"name":"Chala","start":"09:36","end":"11:02","startHours":9.592783362958514,"endHours":11.033734593530367,"quality":"neutral"},{"name":"Labha","start":"11:02","end":"12:28","startHours":11.033734593530367,"endHours":12.47468582410222,"quality":"auspicious"},{"name":"Amṛta","start":"12:28","end":"13:55","startHours":12.47468582410222,"endHours":13.915637054674075,"quality":"auspicious"},{"name":"Kāla","start":"13:55","end":"15:21","startHours":13.915637054674075,"endHours":15.35658828524593,"quality":"inauspicious"},{"name":"Śubha","start":"15:21","end":"16:48","startHours":15.35658828524593,"endHours":16.797539515817782,"quality":"auspicious"},{"name":"Roga","start":"16:48","end":"18:14","startHours":16.797539515817782,"endHours":18.238490746389637,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:14","end":"19:48","startHours":18.238490746389637,"endHours":19.797539515817782,"quality":"inauspicious"},{"name":"Śubha","start":"19:48","end":"21:21","startHours":19.797539515817782,"endHours":21.356588285245927,"quality":"auspicious"},{"name":"Roga","start":"21:21","end":"22:55","startHours":21.356588285245927,"endHours":22.915637054674075,"quality":"inauspicious"},{"name":"Udveg","start":"22:55","end":"00:28","startHours":22.915637054674075,"endHours":24.47468582410222,"quality":"inauspicious"},{"name":"Chala","start":"00:28","end":"02:02","startHours":24.47468582410222,"endHours":26.033734593530365,"quality":"neutral"},{"name":"Labha","start":"02:02","end":"03:36","startHours":26.033734593530365,"endHours":27.592783362958514,"quality":"auspicious"},{"name":"Amṛta","start":"03:36","end":"05:09","startHours":27.592783362958514,"endHours":29.15183213238666,"quality":"auspicious"},{"name":"Kāla","start":"05:09","end":"06:43","startHours":29.15183213238666,"endHours":30.710880901814804,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:43","end":"07:43","startHours":6.710880901814805,"endHours":7.710880901814805,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:43","end":"08:43","startHours":7.710880901814805,"endHours":8.710880901814804,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:43","end":"09:43","startHours":8.710880901814804,"endHours":9.710880901814804,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:43","end":"10:43","startHours":9.710880901814804,"endHours":10.710880901814804,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:43","end":"11:43","startHours":10.710880901814804,"endHours":11.710880901814804,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:43","end":"12:43","startHours":11.710880901814804,"endHours":12.710880901814804,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:43","end":"13:43","startHours":12.710880901814804,"endHours":13.710880901814804,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:43","end":"14:43","startHours":13.710880901814804,"endHours":14.710880901814804,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:43","end":"15:43","startHours":14.710880901814804,"endHours":15.710880901814804,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:43","end":"16:43","startHours":15.710880901814804,"endHours":16.710880901814804,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:43","end":"17:43","startHours":16.710880901814804,"endHours":17.710880901814804,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:43","end":"18:43","startHours":17.710880901814804,"endHours":18.710880901814804,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:43","end":"19:43","startHours":18.710880901814804,"endHours":19.710880901814804,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:43","end":"20:43","startHours":19.710880901814804,"endHours":20.710880901814804,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:43","end":"21:43","startHours":20.710880901814804,"endHours":21.710880901814804,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:43","end":"22:43","startHours":21.710880901814804,"endHours":22.710880901814804,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:43","end":"23:43","startHours":22.710880901814804,"endHours":23.710880901814804,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:43","end":"00:43","startHours":23.710880901814804,"endHours":24.710880901814804,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:43","end":"01:43","startHours":24.710880901814804,"endHours":25.710880901814804,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:43","end":"02:43","startHours":25.710880901814804,"endHours":26.710880901814804,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:43","end":"03:43","startHours":26.710880901814804,"endHours":27.710880901814804,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:43","end":"04:43","startHours":27.710880901814804,"endHours":28.710880901814804,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:43","end":"05:43","startHours":28.710880901814804,"endHours":29.710880901814804,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:43","end":"06:43","startHours":29.710880901814804,"endHours":30.710880901814804,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-21.176167968850482,"eotMinutes":-9.349949446133257,"ayanamsa":25.3762}},"calendars":{"vikram_samvat":2166,"vikram_samvatsara":"Citrabhānu","saka_samvat":2031,"saka_samvatsara":"Śukla","bengali_samvat":1516,"malayalam_era":1285,"nanakshahi_year":640,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Trayodaśī · Vikram 2166 Citrabhānu · Śaka 2031 Śukla"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5},{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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":[]},"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 January 15, 2109 CE · Erode, Tamil Nadu · Vidhyamitra","description":"January 15, 2109 CE for Erode, Tamil Nadu: Śukla Trayodaśī, sūryodaya 06:43, sūryāsta 18:14.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2109-01-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2109-01-15","sa":"https://sa.vidhyamitra.com/city/erode/2109-01-15","hi":"https://hi.vidhyamitra.com/city/erode/2109-01-15","x-default":"https://vidhyamitra.com/city/erode/2109-01-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T11:31:32.962Z","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":"2026-05-21T11:31:32.962Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T11:31:32.962Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}