{"id":"vidhyamitra:city-day:thane:2018-09-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/2018-09-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2018-09-18","date_display":"September 18, 2018 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":2018,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458379.770833,"kali_year":5120,"ahargana":1869914.2708,"sun":{"sidereal_longitude":150.2003,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":250.5877,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":100.3874,"elapsed_within_tithi_degrees":4.3874},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":250.5877,"elapsed_within_degrees":10.5877},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":40.788},"karana":{"half_tithi_index":16,"name":"Bālava"},"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":2018,"month":9,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458379.770833,"ahargana":1869914.2708,"kali_year":5120,"ayanamsa_lahiri":24.1144,"grahas":{"sun":{"sidereal_longitude":150.978272,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":252.79067199999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false,"latitude":2.4065},"mars":{"sidereal_longitude":277.242572,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":148.042772,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":205.57847200000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":191.23157200000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":248.42637200000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":102.9433,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":282.9433,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":2018,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458379.770833,"kali_year":5120,"ahargana":1869914.2708,"sun":{"sidereal_longitude":150.2003,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":250.5877,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":100.3874,"elapsed_within_tithi_degrees":4.3874},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":250.5877,"elapsed_within_degrees":10.5877},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":40.788},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.407,"elongation":100.387},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.407,"opposition_distance":79.613}},"eclipse_window_40days":[]},"city":{"slug":"thane","name":"Thane, Maharashtra","lat":19.2183,"lon":72.9781,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"thane","name":"Thane, Maharashtra","lat":19.2183,"lon":72.9781,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"sunriseLocal":"06:25","sunsetLocal":"18:38","solarNoonLocal":"12:31","dayLengthHours":12.208371546131808,"dayLengthDisplay":"12 Hours 12 Mins 30 Secs","nightLengthDisplay":"11 Hours 47 Mins 30 Secs","moonriseLocal":"13:50","moonsetLocal":"00:47","rahuKala":{"name":"Rāhu Kāla","start":"15:35","end":"17:06","startHours":15.57671918363838,"endHours":17.102765626904855,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:28","end":"11:00","startHours":9.472533410572476,"endHours":10.998579853838951,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:31","end":"14:03","startHours":12.524626297105428,"endHours":14.050672740371905,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:16","end":"09:41","startHours":9.269060551470279,"endHours":9.676006269674673,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:56","end":"07:15","startHours":6.929122671795016,"endHours":7.25467924635853,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:07","end":"12:56","startHours":12.117680578901034,"endHours":12.931572015309822,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:48","end":"05:36","startHours":4.792657651221949,"endHours":5.606549087630737,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:24","end":"06:25","startHours":5.4030762285285405,"endHours":6.420440524039524,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:34","end":"15:22","startHours":14.559354888127395,"endHours":15.373246324536181,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:26","end":"18:50","startHours":18.428812070171332,"endHours":18.82881207017133,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:38","end":"19:08","startHours":18.628812070171332,"endHours":19.137494217926825,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:23","end":"20:08","startHours":18.378812070171332,"endHours":20.128812070171332,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:07","end":"00:56","startHours":24.117680578901034,"endHours":24.931572015309822,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:25","end":"07:57","startHours":6.420440524039524,"endHours":7.946486967306,"quality":"inauspicious"},{"name":"Udveg","start":"07:57","end":"09:28","startHours":7.946486967306,"endHours":9.472533410572476,"quality":"inauspicious"},{"name":"Chala","start":"09:28","end":"11:00","startHours":9.472533410572476,"endHours":10.998579853838951,"quality":"neutral"},{"name":"Labha","start":"11:00","end":"12:31","startHours":10.998579853838951,"endHours":12.524626297105428,"quality":"auspicious"},{"name":"Amṛta","start":"12:31","end":"14:03","startHours":12.524626297105428,"endHours":14.050672740371905,"quality":"auspicious"},{"name":"Kāla","start":"14:03","end":"15:35","startHours":14.050672740371905,"endHours":15.57671918363838,"quality":"inauspicious"},{"name":"Śubha","start":"15:35","end":"17:06","startHours":15.57671918363838,"endHours":17.102765626904855,"quality":"auspicious"},{"name":"Roga","start":"17:06","end":"18:38","startHours":17.102765626904855,"endHours":18.628812070171332,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:38","end":"20:06","startHours":18.628812070171332,"endHours":20.102765626904855,"quality":"inauspicious"},{"name":"Śubha","start":"20:06","end":"21:35","startHours":20.102765626904855,"endHours":21.57671918363838,"quality":"auspicious"},{"name":"Roga","start":"21:35","end":"23:03","startHours":21.57671918363838,"endHours":23.050672740371905,"quality":"inauspicious"},{"name":"Udveg","start":"23:03","end":"00:31","startHours":23.050672740371905,"endHours":24.524626297105428,"quality":"inauspicious"},{"name":"Chala","start":"00:31","end":"02:00","startHours":24.524626297105428,"endHours":25.99857985383895,"quality":"neutral"},{"name":"Labha","start":"02:00","end":"03:28","startHours":25.99857985383895,"endHours":27.472533410572474,"quality":"auspicious"},{"name":"Amṛta","start":"03:28","end":"04:57","startHours":27.472533410572474,"endHours":28.946486967306,"quality":"auspicious"},{"name":"Kāla","start":"04:57","end":"06:25","startHours":28.946486967306,"endHours":30.420440524039524,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:25","end":"07:25","startHours":6.420440524039524,"endHours":7.420440524039524,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:25","end":"08:25","startHours":7.420440524039524,"endHours":8.420440524039524,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:25","end":"09:25","startHours":8.420440524039524,"endHours":9.420440524039524,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:25","end":"10:25","startHours":9.420440524039524,"endHours":10.420440524039524,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:25","end":"11:25","startHours":10.420440524039524,"endHours":11.420440524039524,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:25","end":"12:25","startHours":11.420440524039524,"endHours":12.420440524039524,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:25","end":"13:25","startHours":12.420440524039524,"endHours":13.420440524039524,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:25","end":"14:25","startHours":13.420440524039524,"endHours":14.420440524039524,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:25","end":"15:25","startHours":14.420440524039524,"endHours":15.420440524039524,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:25","end":"16:25","startHours":15.420440524039524,"endHours":16.420440524039524,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:25","end":"17:25","startHours":16.420440524039524,"endHours":17.420440524039524,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:25","end":"18:25","startHours":17.420440524039524,"endHours":18.420440524039524,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:25","end":"19:25","startHours":18.420440524039524,"endHours":19.420440524039524,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:25","end":"20:25","startHours":19.420440524039524,"endHours":20.420440524039524,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:25","end":"21:25","startHours":20.420440524039524,"endHours":21.420440524039524,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:25","end":"22:25","startHours":21.420440524039524,"endHours":22.420440524039524,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:25","end":"23:25","startHours":22.420440524039524,"endHours":23.420440524039524,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:25","end":"00:25","startHours":23.420440524039524,"endHours":24.420440524039524,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:25","end":"01:25","startHours":24.420440524039524,"endHours":25.420440524039524,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:25","end":"02:25","startHours":25.420440524039524,"endHours":26.420440524039524,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:25","end":"03:25","startHours":26.420440524039524,"endHours":27.420440524039524,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:25","end":"04:25","startHours":27.420440524039524,"endHours":28.420440524039524,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:25","end":"05:25","startHours":28.420440524039524,"endHours":29.420440524039524,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:25","end":"06:25","startHours":29.420440524039524,"endHours":30.420440524039524,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":1.949794501484897,"eotMinutes":6.610022173674397,"ayanamsa":24.1144}},"calendars":{"vikram_samvat":2075,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1940,"saka_samvatsara":"Vilambī","bengali_samvat":1425,"malayalam_era":1194,"nanakshahi_year":549,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Navamī · Vikram 2075 Virodhakṛt · Śaka 1940 Vilambī"},"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},{"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":"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":[{"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":"thane"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga September 18, 2018 CE · Thane, Maharashtra · Vidhyamitra","description":"September 18, 2018 CE for Thane, Maharashtra: Śukla Navamī, sūryodaya 06:25, sūryāsta 18:38.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/2018-09-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/2018-09-18","sa":"https://sa.vidhyamitra.com/city/thane/2018-09-18","hi":"https://hi.vidhyamitra.com/city/thane/2018-09-18","x-default":"https://vidhyamitra.com/city/thane/2018-09-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T14:12:31.585Z","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":"2026-05-15T14:12:31.585Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T14:12:31.585Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}