{"id":"vidhyamitra:city-day:erode:1986-09-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1986-09-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1986-09-15","date_display":"September 15, 1986 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":1986,"month":9,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446688.770833,"kali_year":5088,"ahargana":1858223.2708,"sun":{"sidereal_longitude":147.5538,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":287.9207,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":140.367,"elapsed_within_tithi_degrees":8.367},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":287.9207,"elapsed_within_degrees":7.9207},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":75.4745},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1986,"month":9,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446688.770833,"ahargana":1858223.2708,"kali_year":5088,"ayanamsa_lahiri":23.6673,"grahas":{"sun":{"sidereal_longitude":148.24875399999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":287.50065399999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false,"latitude":-4.3353},"mars":{"sidereal_longitude":265.089154,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":156.35195399999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":324.451454,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":192.90455399999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":220.24525399999993,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":2.3887,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":182.3887,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","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":1986,"month":9,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446688.770833,"kali_year":5088,"ahargana":1858223.2708,"sun":{"sidereal_longitude":147.5538,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":287.9207,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":140.367,"elapsed_within_tithi_degrees":8.367},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":287.9207,"elapsed_within_degrees":7.9207},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":75.4745},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.335,"elongation":140.367},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.335,"opposition_distance":39.633}},"eclipse_window_40days":[{"offset_days":19,"type":"solar","occurs":true,"moon_latitude":1.033,"elongation":1.957}]},"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":"18:20","solarNoonLocal":"12:14","dayLengthHours":12.199305817975997,"dayLengthDisplay":"12 Hours 11 Mins 58 Secs","nightLengthDisplay":"11 Hours 48 Mins 02 Secs","moonriseLocal":"15:43","moonsetLocal":"03:19","rahuKala":{"name":"Rāhu Kāla","start":"07:39","end":"09:11","startHours":7.652502431868963,"endHours":9.177415659115962,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:42","end":"12:14","startHours":10.702328886362963,"endHours":12.227242113609961,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:45","end":"15:17","startHours":13.752155340856962,"endHours":15.27706856810396,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:58","end":"09:23","startHours":8.97409389548303,"endHours":9.380737422748895,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:58","startHours":6.6358936137042965,"endHours":6.96120843551699,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:38","startHours":11.820598586344094,"endHours":12.633885640875828,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:30","end":"05:19","startHours":4.501015095558497,"endHours":5.3143021500902305,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:08","startHours":5.110980386457297,"endHours":6.127589204621963,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:16","end":"15:04","startHours":14.260459749939294,"endHours":15.073746804471027,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:08","end":"18:32","startHours":18.12689502259796,"endHours":18.52689502259796,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:20","end":"18:50","startHours":18.32689502259796,"endHours":18.835199431680294,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:05","end":"19:50","startHours":18.07689502259796,"endHours":19.82689502259796,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:38","startHours":23.820598586344094,"endHours":24.633885640875828,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:08","end":"07:39","startHours":6.127589204621963,"endHours":7.652502431868963,"quality":"auspicious"},{"name":"Kāla","start":"07:39","end":"09:11","startHours":7.652502431868963,"endHours":9.177415659115962,"quality":"inauspicious"},{"name":"Śubha","start":"09:11","end":"10:42","startHours":9.177415659115962,"endHours":10.702328886362963,"quality":"auspicious"},{"name":"Roga","start":"10:42","end":"12:14","startHours":10.702328886362963,"endHours":12.227242113609961,"quality":"inauspicious"},{"name":"Udveg","start":"12:14","end":"13:45","startHours":12.227242113609961,"endHours":13.752155340856962,"quality":"inauspicious"},{"name":"Chala","start":"13:45","end":"15:17","startHours":13.752155340856962,"endHours":15.27706856810396,"quality":"neutral"},{"name":"Labha","start":"15:17","end":"16:48","startHours":15.27706856810396,"endHours":16.80198179535096,"quality":"auspicious"},{"name":"Amṛta","start":"16:48","end":"18:20","startHours":16.80198179535096,"endHours":18.32689502259796,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:20","end":"19:48","startHours":18.32689502259796,"endHours":19.80198179535096,"quality":"neutral"},{"name":"Labha","start":"19:48","end":"21:17","startHours":19.80198179535096,"endHours":21.27706856810396,"quality":"auspicious"},{"name":"Amṛta","start":"21:17","end":"22:45","startHours":21.27706856810396,"endHours":22.75215534085696,"quality":"auspicious"},{"name":"Kāla","start":"22:45","end":"00:14","startHours":22.75215534085696,"endHours":24.22724211360996,"quality":"inauspicious"},{"name":"Śubha","start":"00:14","end":"01:42","startHours":24.22724211360996,"endHours":25.702328886362963,"quality":"auspicious"},{"name":"Roga","start":"01:42","end":"03:11","startHours":25.702328886362963,"endHours":27.17741565911596,"quality":"inauspicious"},{"name":"Udveg","start":"03:11","end":"04:39","startHours":27.17741565911596,"endHours":28.65250243186896,"quality":"inauspicious"},{"name":"Chala","start":"04:39","end":"06:08","startHours":28.65250243186896,"endHours":30.127589204621962,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.127589204621963,"endHours":7.127589204621963,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.127589204621963,"endHours":8.127589204621962,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.127589204621962,"endHours":9.127589204621962,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.127589204621962,"endHours":10.127589204621962,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.127589204621962,"endHours":11.127589204621962,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.127589204621962,"endHours":12.127589204621962,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.127589204621962,"endHours":13.127589204621962,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.127589204621962,"endHours":14.127589204621962,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.127589204621962,"endHours":15.127589204621962,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.127589204621962,"endHours":16.127589204621962,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.127589204621962,"endHours":17.127589204621962,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.127589204621962,"endHours":18.127589204621962,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.127589204621962,"endHours":19.127589204621962,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.127589204621962,"endHours":20.127589204621962,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.127589204621962,"endHours":21.127589204621962,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.127589204621962,"endHours":22.127589204621962,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.127589204621962,"endHours":23.127589204621962,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.127589204621962,"endHours":24.127589204621962,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.127589204621962,"endHours":25.127589204621962,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.127589204621962,"endHours":26.127589204621962,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.127589204621962,"endHours":27.127589204621962,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.127589204621962,"endHours":28.127589204621962,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.127589204621962,"endHours":29.127589204621962,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.127589204621962,"endHours":30.127589204621962,"planetary_lord":"Venus"}],"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":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":3.206263944097,"eotMinutes":5.496673183402374,"ayanamsa":23.6673}},"calendars":{"vikram_samvat":2043,"vikram_samvatsara":"Pramāthi","saka_samvat":1908,"saka_samvatsara":"Akṣaya","bengali_samvat":1393,"malayalam_era":1162,"nanakshahi_year":517,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","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 Śukla Dvādaśī · Vikram 2043 Pramāthi · Śaka 1908 Akṣaya"},"festivals":[{"id":"vamana-jayanti","name":"Vāmana Jayantī","name_sanskrit":"वामन जयन्ती","tradition":"Vaishnava","associated_deity":"Vāmana (5th daśāvatāra of Krishna)","deity_avatara_index":15,"significance":"Vāmana's three-step measure of all worlds; Bali's surrender. (= Onam in Kerala.)","vrata":true,"detection":{"tithi_number":12,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":2,"sources":["Bhāgavata 8.18-22"]},{"id":"onam","name":"Onam (Vāmana / King Bali)","name_sanskrit":"ओणम् (वामन-बलि स्मरण)","tradition":"Regional","associated_deity":"Vāmana + King Bali","significance":"Kerala festival; King Bali's annual return to Kerala. Aligned with Thiru-Onam (Śravaṇa nakshatra in Bhādrapada).","vrata":false,"detection":{"nakshatra_name":"Śravaṇa","lunar_month":"Bhādrapada"},"precedence":2}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 15, 1986 CE · Erode, Tamil Nadu · Vidhyamitra","description":"September 15, 1986 CE for Erode, Tamil Nadu: Śukla Dvādaśī, sūryodaya 06:08, sūryāsta 18:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1986-09-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1986-09-15","sa":"https://sa.vidhyamitra.com/city/erode/1986-09-15","hi":"https://hi.vidhyamitra.com/city/erode/1986-09-15","x-default":"https://vidhyamitra.com/city/erode/1986-09-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T19:18:48.325Z","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":"2026-05-31T19:18:48.325Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T19:18:48.325Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}