{"id":"vidhyamitra:city-day:thane:1850-04-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/1850-04-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1850-04-18","date_display":"April 18, 1850 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":1850,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2396865.770833,"kali_year":4952,"ahargana":1808400.2708,"sun":{"sidereal_longitude":6.3437,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":77.3883,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":71.0446,"elapsed_within_tithi_degrees":11.0446},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":77.3883,"elapsed_within_degrees":10.7216},"yoga":{"number":7,"name":"Sukarma","sum_longitude":83.732},"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":1850,"month":4,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2396865.770833,"ahargana":1808400.2708,"kali_year":4952,"ayanamsa_lahiri":21.7617,"grahas":{"sun":{"sidereal_longitude":5.884759000000031,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":77.70195899999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false,"latitude":-3.1727},"mars":{"sidereal_longitude":85.923359,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":7.854858999999976,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":143.924059,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":19.587459000000024,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":352.930459,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":122.251,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":302.251,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":1850,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2396865.770833,"kali_year":4952,"ahargana":1808400.2708,"sun":{"sidereal_longitude":6.3437,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":77.3883,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":71.0446,"elapsed_within_tithi_degrees":11.0446},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":77.3883,"elapsed_within_degrees":10.7216},"yoga":{"number":7,"name":"Sukarma","sum_longitude":83.732},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.173,"elongation":71.045},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.173,"opposition_distance":108.955}},"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":"06:19","sunsetLocal":"18:56","solarNoonLocal":"12:38","dayLengthHours":12.620424016462023,"dayLengthDisplay":"12 Hours 37 Mins 14 Secs","nightLengthDisplay":"11 Hours 22 Mins 46 Secs","moonriseLocal":"10:48","moonsetLocal":"00:02","rahuKala":{"name":"Rāhu Kāla","start":"14:12","end":"15:47","startHours":14.203914953793031,"endHours":15.781467955850783,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:19","end":"07:54","startHours":6.316149943504266,"endHours":7.893702945562019,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:28","end":"11:03","startHours":9.471255947619772,"endHours":11.048808949677525,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:16","end":"09:41","startHours":9.260915547345405,"endHours":9.68159634789414,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:51","end":"07:11","startHours":6.8420009441901835,"endHours":7.178545584629171,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:12","end":"13:03","startHours":12.205681151186543,"endHours":13.04704275228401,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:38","end":"05:28","startHours":4.6334267413093295,"endHours":5.474788342406798,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:16","end":"06:19","startHours":5.264447942132431,"endHours":6.316149943504266,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:34","startHours":14.729765954478948,"endHours":15.571127555576416,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:44","end":"19:08","startHours":18.73657395996629,"endHours":19.136573959966288,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:56","end":"19:28","startHours":18.93657395996629,"endHours":19.462424960652207,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:41","end":"20:26","startHours":18.68657395996629,"endHours":20.43657395996629,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:12","end":"01:03","startHours":24.205681151186543,"endHours":25.04704275228401,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:19","end":"07:54","startHours":6.316149943504266,"endHours":7.893702945562019,"quality":"auspicious"},{"name":"Roga","start":"07:54","end":"09:28","startHours":7.893702945562019,"endHours":9.471255947619772,"quality":"inauspicious"},{"name":"Udveg","start":"09:28","end":"11:03","startHours":9.471255947619772,"endHours":11.048808949677525,"quality":"inauspicious"},{"name":"Chala","start":"11:03","end":"12:38","startHours":11.048808949677525,"endHours":12.626361951735277,"quality":"neutral"},{"name":"Labha","start":"12:38","end":"14:12","startHours":12.626361951735277,"endHours":14.203914953793031,"quality":"auspicious"},{"name":"Amṛta","start":"14:12","end":"15:47","startHours":14.203914953793031,"endHours":15.781467955850783,"quality":"auspicious"},{"name":"Kāla","start":"15:47","end":"17:22","startHours":15.781467955850783,"endHours":17.359020957908534,"quality":"inauspicious"},{"name":"Śubha","start":"17:22","end":"18:56","startHours":17.359020957908534,"endHours":18.93657395996629,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:56","end":"20:22","startHours":18.93657395996629,"endHours":20.359020957908537,"quality":"auspicious"},{"name":"Kāla","start":"20:22","end":"21:47","startHours":20.359020957908537,"endHours":21.781467955850783,"quality":"inauspicious"},{"name":"Śubha","start":"21:47","end":"23:12","startHours":21.781467955850783,"endHours":23.20391495379303,"quality":"auspicious"},{"name":"Roga","start":"23:12","end":"00:38","startHours":23.20391495379303,"endHours":24.626361951735277,"quality":"inauspicious"},{"name":"Udveg","start":"00:38","end":"02:03","startHours":24.626361951735277,"endHours":26.048808949677525,"quality":"inauspicious"},{"name":"Chala","start":"02:03","end":"03:28","startHours":26.048808949677525,"endHours":27.471255947619774,"quality":"neutral"},{"name":"Labha","start":"03:28","end":"04:54","startHours":27.471255947619774,"endHours":28.89370294556202,"quality":"auspicious"},{"name":"Amṛta","start":"04:54","end":"06:19","startHours":28.89370294556202,"endHours":30.316149943504264,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:19","end":"07:19","startHours":6.316149943504266,"endHours":7.316149943504266,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:19","end":"08:19","startHours":7.316149943504266,"endHours":8.316149943504266,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:19","end":"09:19","startHours":8.316149943504266,"endHours":9.316149943504266,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:19","end":"10:19","startHours":9.316149943504266,"endHours":10.316149943504266,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:19","end":"11:19","startHours":10.316149943504266,"endHours":11.316149943504266,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:19","end":"12:19","startHours":11.316149943504266,"endHours":12.316149943504266,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:19","end":"13:19","startHours":12.316149943504266,"endHours":13.316149943504266,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:19","end":"14:19","startHours":13.316149943504266,"endHours":14.316149943504266,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:19","end":"15:19","startHours":14.316149943504266,"endHours":15.316149943504266,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:19","end":"16:19","startHours":15.316149943504266,"endHours":16.316149943504264,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:19","end":"17:19","startHours":16.316149943504264,"endHours":17.316149943504264,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:19","end":"18:19","startHours":17.316149943504264,"endHours":18.316149943504264,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:19","end":"19:19","startHours":18.316149943504264,"endHours":19.316149943504264,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:19","end":"20:19","startHours":19.316149943504264,"endHours":20.316149943504264,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:19","end":"21:19","startHours":20.316149943504264,"endHours":21.316149943504264,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:19","end":"22:19","startHours":21.316149943504264,"endHours":22.316149943504264,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:19","end":"23:19","startHours":22.316149943504264,"endHours":23.316149943504264,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:19","end":"00:19","startHours":23.316149943504264,"endHours":24.316149943504264,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:19","end":"01:19","startHours":24.316149943504264,"endHours":25.316149943504264,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:19","end":"02:19","startHours":25.316149943504264,"endHours":26.316149943504264,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:19","end":"03:19","startHours":26.316149943504264,"endHours":27.316149943504264,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:19","end":"04:19","startHours":27.316149943504264,"endHours":28.316149943504264,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:19","end":"05:19","startHours":28.316149943504264,"endHours":29.316149943504264,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:19","end":"06:19","startHours":29.316149943504264,"endHours":30.316149943504264,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"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":"South (Dakṣiṇa)","chandraVasa":"South","rahuVasa":"North-West","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":10.635108472057075,"eotMinutes":0.5058828958834352,"ayanamsa":21.7617}},"calendars":{"vikram_samvat":1907,"vikram_samvatsara":"Rudhirodgāri","saka_samvat":1772,"saka_samvatsara":"Sādhāraṇa","bengali_samvat":1257,"malayalam_era":1026,"nanakshahi_year":381,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha (Adhika) Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":true,"lunar_month_purnimanta_is_adhika":true,"lunar_month_amanta_is_adhika":true,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha (Adhika) Śukla Ṣaṣṭhī · Vikram 1907 Rudhirodgāri · Śaka 1772 Sādhāraṇa"},"festivals":[],"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":"thane"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 18, 1850 CE · Thane, Maharashtra · Vidhyamitra","description":"April 18, 1850 CE for Thane, Maharashtra: Śukla Ṣaṣṭhī, sūryodaya 06:19, sūryāsta 18:56.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/1850-04-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/1850-04-18","sa":"https://sa.vidhyamitra.com/city/thane/1850-04-18","hi":"https://hi.vidhyamitra.com/city/thane/1850-04-18","x-default":"https://vidhyamitra.com/city/thane/1850-04-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T17:17:52.321Z","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":"2026-06-02T17:17:52.321Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T17:17:52.321Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}