{"id":"vidhyamitra:city-day:erode:1923-10-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1923-10-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1923-10-18","date_display":"October 18, 1923 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":1923,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2423710.770833,"kali_year":5025,"ahargana":1835245.2708,"sun":{"sidereal_longitude":180.3044,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":281.6724,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":101.368,"elapsed_within_tithi_degrees":5.368},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1,"moon_longitude":281.6724,"elapsed_within_degrees":1.6724},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":101.9767},"karana":{"half_tithi_index":16,"name":"Bālava"},"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":1923,"month":10,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2423710.770833,"ahargana":1835245.2708,"kali_year":5025,"ayanamsa_lahiri":22.7884,"grahas":{"sun":{"sidereal_longitude":180.848483,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":285.1023829999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false,"latitude":2.7812},"mars":{"sidereal_longitude":158.15708300000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":164.48098300000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":210.53538300000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":191.86208299999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":180.550883,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":139.8737,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":319.8737,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"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":1923,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2423710.770833,"kali_year":5025,"ahargana":1835245.2708,"sun":{"sidereal_longitude":180.3044,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":281.6724,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":101.368,"elapsed_within_tithi_degrees":5.368},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1,"moon_longitude":281.6724,"elapsed_within_degrees":1.6724},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":101.9767},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.781,"elongation":101.368},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.781,"opposition_distance":78.632}},"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":"18:00","solarNoonLocal":"12:04","dayLengthHours":11.867235230790318,"dayLengthDisplay":"11 Hours 52 Mins 02 Secs","nightLengthDisplay":"12 Hours 07 Mins 58 Secs","moonriseLocal":"13:13","moonsetLocal":"00:48","rahuKala":{"name":"Rāhu Kāla","start":"13:33","end":"15:02","startHours":13.545663433795148,"endHours":15.02906783764394,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:08","end":"07:37","startHours":6.1286414145512,"endHours":7.61204581839999,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:06","end":"10:35","startHours":9.095450222248779,"endHours":10.57885462609757,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.897662968402273,"endHours":9.293237476095284,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:37","end":"06:56","startHours":6.623109549167463,"endHours":6.9395691553218715,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:27","startHours":11.666684522253348,"endHours":12.45783353763937,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:33","end":"05:20","startHours":4.546343383779157,"endHours":5.337492399165178,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:08","end":"06:08","startHours":5.139705145318673,"endHours":6.1286414145512,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:02","end":"14:50","startHours":14.040131568411411,"endHours":14.831280583797431,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:48","end":"18:12","startHours":17.79587664534152,"endHours":18.195876645341517,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:00","end":"18:29","startHours":17.995876645341518,"endHours":18.49034477995778,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:45","end":"19:30","startHours":17.745876645341518,"endHours":19.495876645341518,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:27","startHours":23.66668452225335,"endHours":24.45783353763937,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:08","end":"07:37","startHours":6.1286414145512,"endHours":7.61204581839999,"quality":"auspicious"},{"name":"Roga","start":"07:37","end":"09:06","startHours":7.61204581839999,"endHours":9.095450222248779,"quality":"inauspicious"},{"name":"Udveg","start":"09:06","end":"10:35","startHours":9.095450222248779,"endHours":10.57885462609757,"quality":"inauspicious"},{"name":"Chala","start":"10:35","end":"12:04","startHours":10.57885462609757,"endHours":12.062259029946357,"quality":"neutral"},{"name":"Labha","start":"12:04","end":"13:33","startHours":12.062259029946357,"endHours":13.545663433795148,"quality":"auspicious"},{"name":"Amṛta","start":"13:33","end":"15:02","startHours":13.545663433795148,"endHours":15.02906783764394,"quality":"auspicious"},{"name":"Kāla","start":"15:02","end":"16:31","startHours":15.02906783764394,"endHours":16.512472241492727,"quality":"inauspicious"},{"name":"Śubha","start":"16:31","end":"18:00","startHours":16.512472241492727,"endHours":17.995876645341518,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:00","end":"19:31","startHours":17.995876645341518,"endHours":19.512472241492727,"quality":"auspicious"},{"name":"Kāla","start":"19:31","end":"21:02","startHours":19.512472241492727,"endHours":21.02906783764394,"quality":"inauspicious"},{"name":"Śubha","start":"21:02","end":"22:33","startHours":21.02906783764394,"endHours":22.54566343379515,"quality":"auspicious"},{"name":"Roga","start":"22:33","end":"00:04","startHours":22.54566343379515,"endHours":24.06225902994636,"quality":"inauspicious"},{"name":"Udveg","start":"00:04","end":"01:35","startHours":24.06225902994636,"endHours":25.57885462609757,"quality":"inauspicious"},{"name":"Chala","start":"01:35","end":"03:06","startHours":25.57885462609757,"endHours":27.09545022224878,"quality":"neutral"},{"name":"Labha","start":"03:06","end":"04:37","startHours":27.09545022224878,"endHours":28.61204581839999,"quality":"auspicious"},{"name":"Amṛta","start":"04:37","end":"06:08","startHours":28.61204581839999,"endHours":30.1286414145512,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.1286414145512,"endHours":7.1286414145512,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.1286414145512,"endHours":8.1286414145512,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.1286414145512,"endHours":9.1286414145512,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.1286414145512,"endHours":10.1286414145512,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.1286414145512,"endHours":11.1286414145512,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.1286414145512,"endHours":12.1286414145512,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.1286414145512,"endHours":13.1286414145512,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.1286414145512,"endHours":14.1286414145512,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.1286414145512,"endHours":15.1286414145512,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.1286414145512,"endHours":16.1286414145512,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.1286414145512,"endHours":17.1286414145512,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.1286414145512,"endHours":18.1286414145512,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.1286414145512,"endHours":19.1286414145512,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.1286414145512,"endHours":20.1286414145512,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.1286414145512,"endHours":21.1286414145512,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.1286414145512,"endHours":22.1286414145512,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.1286414145512,"endHours":23.1286414145512,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.1286414145512,"endHours":24.1286414145512,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.1286414145512,"endHours":25.1286414145512,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.1286414145512,"endHours":26.1286414145512,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.1286414145512,"endHours":27.1286414145512,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.1286414145512,"endHours":28.1286414145512,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.1286414145512,"endHours":29.1286414145512,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.1286414145512,"endHours":30.1286414145512,"planetary_lord":"Moon"}],"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":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-9.175925039030774,"eotMinutes":15.395658203218455,"ayanamsa":22.7884}},"calendars":{"vikram_samvat":1980,"vikram_samvatsara":"Dhātṛ","saka_samvat":1845,"saka_samvatsara":"Rudhirodgāri","bengali_samvat":1330,"malayalam_era":1099,"nanakshahi_year":454,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Navamī · Vikram 1980 Dhātṛ · Śaka 1845 Rudhirodgāri"},"festivals":[{"id":"mahanavami","name":"Mahā-Navamī","name_sanskrit":"महानवमी","tradition":"Shakta","associated_deity":"Devī Durgā","significance":"9th day of Śāradīya Navrātri; Devī's final victory.","vrata":true,"detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":1}],"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":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","relevance":0.5}]},"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, 1923 CE · Erode, Tamil Nadu · Vidhyamitra","description":"October 18, 1923 CE for Erode, Tamil Nadu: Śukla Navamī, sūryodaya 06:08, sūryāsta 18:00.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1923-10-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1923-10-18","sa":"https://sa.vidhyamitra.com/city/erode/1923-10-18","hi":"https://hi.vidhyamitra.com/city/erode/1923-10-18","x-default":"https://vidhyamitra.com/city/erode/1923-10-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T03:10:09.930Z","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":"2026-05-31T03:10:09.930Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T03:10:09.930Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}