{"id":"vidhyamitra:city-day:erode:2091-10-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2091-10-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2091-10-18","date_display":"October 18, 2091 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":2091,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2485072.770833,"kali_year":5193,"ahargana":1896607.2708,"sun":{"sidereal_longitude":178.8413,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":248.3581,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":69.5168,"elapsed_within_tithi_degrees":9.5168},"nakshatra":{"number":19,"name":"Mūla","pada":3,"moon_longitude":248.3581,"elapsed_within_degrees":8.3581},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":67.1993},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2091,"month":10,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2485072.770833,"ahargana":1896607.2708,"kali_year":5193,"ayanamsa_lahiri":25.1353,"grahas":{"sun":{"sidereal_longitude":179.794403,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":252.61290299999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false,"latitude":3.9064},"mars":{"sidereal_longitude":222.32210299999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":201.33980299999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":258.9077030000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":201.13030300000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":73.71070299999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":128.6197,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":308.6197,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":2091,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2485072.770833,"kali_year":5193,"ahargana":1896607.2708,"sun":{"sidereal_longitude":178.8413,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":248.3581,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":69.5168,"elapsed_within_tithi_degrees":9.5168},"nakshatra":{"number":19,"name":"Mūla","pada":3,"moon_longitude":248.3581,"elapsed_within_degrees":8.3581},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":67.1993},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.906,"elongation":69.517},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.906,"opposition_distance":110.483}},"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":"17:59","solarNoonLocal":"12:04","dayLengthHours":11.854336821613582,"dayLengthDisplay":"11 Hours 51 Mins 16 Secs","nightLengthDisplay":"12 Hours 08 Mins 44 Secs","moonriseLocal":"11:12","moonsetLocal":"22:38","rahuKala":{"name":"Rāhu Kāla","start":"13:33","end":"15:02","startHours":13.544051132648057,"endHours":15.025843235349754,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:08","end":"07:37","startHours":6.135090619139569,"endHours":7.616882721841266,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:06","end":"10:35","startHours":9.098674824542965,"endHours":10.580466927244661,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.901102544182738,"endHours":9.296247104903191,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:57","startHours":6.629021320040135,"endHours":6.945136968616497,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:27","startHours":11.667114469225906,"endHours":12.457403590666813,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:33","end":"05:21","startHours":4.554512376257758,"endHours":5.344801497698663,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:09","end":"06:08","startHours":5.147229217338437,"endHours":6.135090619139569,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:02","end":"14:50","startHours":14.037981833548624,"endHours":14.828270954989529,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:47","end":"18:11","startHours":17.78942744075315,"endHours":18.18942744075315,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:59","end":"18:29","startHours":17.98942744075315,"endHours":18.483358141653717,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:44","end":"19:29","startHours":17.73942744075315,"endHours":19.48942744075315,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:27","startHours":23.667114469225908,"endHours":24.457403590666814,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:08","end":"07:37","startHours":6.135090619139569,"endHours":7.616882721841266,"quality":"auspicious"},{"name":"Roga","start":"07:37","end":"09:06","startHours":7.616882721841266,"endHours":9.098674824542965,"quality":"inauspicious"},{"name":"Udveg","start":"09:06","end":"10:35","startHours":9.098674824542965,"endHours":10.580466927244661,"quality":"inauspicious"},{"name":"Chala","start":"10:35","end":"12:04","startHours":10.580466927244661,"endHours":12.062259029946361,"quality":"neutral"},{"name":"Labha","start":"12:04","end":"13:33","startHours":12.062259029946361,"endHours":13.544051132648057,"quality":"auspicious"},{"name":"Amṛta","start":"13:33","end":"15:02","startHours":13.544051132648057,"endHours":15.025843235349754,"quality":"auspicious"},{"name":"Kāla","start":"15:02","end":"16:30","startHours":15.025843235349754,"endHours":16.507635338051454,"quality":"inauspicious"},{"name":"Śubha","start":"16:30","end":"17:59","startHours":16.507635338051454,"endHours":17.98942744075315,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:59","end":"19:30","startHours":17.98942744075315,"endHours":19.507635338051454,"quality":"auspicious"},{"name":"Kāla","start":"19:30","end":"21:02","startHours":19.507635338051454,"endHours":21.025843235349754,"quality":"inauspicious"},{"name":"Śubha","start":"21:02","end":"22:33","startHours":21.025843235349754,"endHours":22.544051132648057,"quality":"auspicious"},{"name":"Roga","start":"22:33","end":"00:04","startHours":22.544051132648057,"endHours":24.06225902994636,"quality":"inauspicious"},{"name":"Udveg","start":"00:04","end":"01:35","startHours":24.06225902994636,"endHours":25.58046692724466,"quality":"inauspicious"},{"name":"Chala","start":"01:35","end":"03:06","startHours":25.58046692724466,"endHours":27.098674824542965,"quality":"neutral"},{"name":"Labha","start":"03:06","end":"04:37","startHours":27.098674824542965,"endHours":28.616882721841264,"quality":"auspicious"},{"name":"Amṛta","start":"04:37","end":"06:08","startHours":28.616882721841264,"endHours":30.135090619139568,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.135090619139569,"endHours":7.135090619139569,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.135090619139569,"endHours":8.135090619139568,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.135090619139568,"endHours":9.135090619139568,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.135090619139568,"endHours":10.135090619139568,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.135090619139568,"endHours":11.135090619139568,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.135090619139568,"endHours":12.135090619139568,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.135090619139568,"endHours":13.135090619139568,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.135090619139568,"endHours":14.135090619139568,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.135090619139568,"endHours":15.135090619139568,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.135090619139568,"endHours":16.135090619139568,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.135090619139568,"endHours":17.135090619139568,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.135090619139568,"endHours":18.135090619139568,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.135090619139568,"endHours":19.135090619139568,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.135090619139568,"endHours":20.135090619139568,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.135090619139568,"endHours":21.135090619139568,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.135090619139568,"endHours":22.135090619139568,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.135090619139568,"endHours":23.135090619139568,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.135090619139568,"endHours":24.135090619139568,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.135090619139568,"endHours":25.135090619139568,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.135090619139568,"endHours":26.135090619139568,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.135090619139568,"endHours":27.135090619139568,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.135090619139568,"endHours":28.135090619139568,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.135090619139568,"endHours":29.135090619139568,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.135090619139568,"endHours":30.135090619139568,"planetary_lord":"Moon"}],"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","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Dhvaja","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":-9.651016179738109,"eotMinutes":15.395658203218455,"ayanamsa":25.1353}},"calendars":{"vikram_samvat":2148,"vikram_samvatsara":"Raktākṣī","saka_samvat":2013,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1498,"malayalam_era":1267,"nanakshahi_year":622,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Ṣaṣṭhī · Vikram 2148 Raktākṣī · Śaka 2013 Virodhakṛt"},"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":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 October 18, 2091 CE · Erode, Tamil Nadu · Vidhyamitra","description":"October 18, 2091 CE for Erode, Tamil Nadu: Śukla Ṣaṣṭhī, sūryodaya 06:08, sūryāsta 17:59.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2091-10-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2091-10-18","sa":"https://sa.vidhyamitra.com/city/erode/2091-10-18","hi":"https://hi.vidhyamitra.com/city/erode/2091-10-18","x-default":"https://vidhyamitra.com/city/erode/2091-10-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T00:31:18.386Z","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":"2026-05-20T00:31:18.386Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T00:31:18.386Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}