{"id":"vidhyamitra:city-day:thane:2138-04-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/2138-04-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2138-04-18","date_display":"April 18, 2138 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":2138,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2502055.770833,"kali_year":5239,"ahargana":1913590.2708,"sun":{"sidereal_longitude":1.9406,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":99.5769,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":97.6363,"elapsed_within_tithi_degrees":1.6363},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":99.5769,"elapsed_within_degrees":6.2435},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":101.5175},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2138,"month":4,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2502055.770833,"ahargana":1913590.2708,"kali_year":5239,"ayanamsa_lahiri":25.7848,"grahas":{"sun":{"sidereal_longitude":2.1366279999999733,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":100.23472800000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false,"latitude":2.1938},"mars":{"sidereal_longitude":123.99872800000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":337.473128,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":250.70002799999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"venus":{"sidereal_longitude":32.35382800000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":278.310928,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":308.7786,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":128.7786,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":2138,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2502055.770833,"kali_year":5239,"ahargana":1913590.2708,"sun":{"sidereal_longitude":1.9406,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":99.5769,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":97.6363,"elapsed_within_tithi_degrees":1.6363},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":99.5769,"elapsed_within_degrees":6.2435},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":101.5175},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.194,"elongation":97.636},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.194,"opposition_distance":82.364}},"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":12.625218129413339,"dayLengthDisplay":"12 Hours 37 Mins 31 Secs","nightLengthDisplay":"11 Hours 22 Mins 29 Secs","moonriseLocal":"12:40","moonsetLocal":"01:40","rahuKala":{"name":"Rāhu Kāla","start":"11:03","end":"12:38","startHours":11.04820968555861,"endHours":12.626361951735277,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:47","end":"17:22","startHours":15.782666484088612,"endHours":17.36081875026528,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:54","end":"09:28","startHours":7.8919051532052755,"endHours":9.470057419381943,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:16","end":"09:41","startHours":9.259637117225054,"endHours":9.680477721538832,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:50","end":"07:11","startHours":6.83980364242083,"endHours":7.176476125871853,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:12","end":"13:03","startHours":12.205521347421499,"endHours":13.047202556049054,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:38","end":"05:28","startHours":4.630390469773496,"endHours":5.472071678401052,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:16","end":"06:19","startHours":5.2616513762441635,"endHours":6.313752887028608,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:34","startHours":14.730564973304167,"endHours":15.572246181931723,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:44","end":"19:08","startHours":18.738971016441948,"endHours":19.138971016441946,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:56","end":"19:28","startHours":18.938971016441947,"endHours":19.46502177183417,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:41","end":"20:26","startHours":18.688971016441947,"endHours":20.438971016441947,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:12","end":"01:03","startHours":24.2055213474215,"endHours":25.047202556049054,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:19","end":"07:54","startHours":6.313752887028608,"endHours":7.8919051532052755,"quality":"neutral"},{"name":"Labha","start":"07:54","end":"09:28","startHours":7.8919051532052755,"endHours":9.470057419381943,"quality":"auspicious"},{"name":"Amṛta","start":"09:28","end":"11:03","startHours":9.470057419381943,"endHours":11.04820968555861,"quality":"auspicious"},{"name":"Kāla","start":"11:03","end":"12:38","startHours":11.04820968555861,"endHours":12.626361951735277,"quality":"inauspicious"},{"name":"Śubha","start":"12:38","end":"14:12","startHours":12.626361951735277,"endHours":14.204514217911946,"quality":"auspicious"},{"name":"Roga","start":"14:12","end":"15:47","startHours":14.204514217911946,"endHours":15.782666484088612,"quality":"inauspicious"},{"name":"Udveg","start":"15:47","end":"17:22","startHours":15.782666484088612,"endHours":17.36081875026528,"quality":"inauspicious"},{"name":"Chala","start":"17:22","end":"18:56","startHours":17.36081875026528,"endHours":18.938971016441947,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:56","end":"20:22","startHours":18.938971016441947,"endHours":20.36081875026528,"quality":"inauspicious"},{"name":"Udveg","start":"20:22","end":"21:47","startHours":20.36081875026528,"endHours":21.78266648408861,"quality":"inauspicious"},{"name":"Chala","start":"21:47","end":"23:12","startHours":21.78266648408861,"endHours":23.204514217911946,"quality":"neutral"},{"name":"Labha","start":"23:12","end":"00:38","startHours":23.204514217911946,"endHours":24.626361951735277,"quality":"auspicious"},{"name":"Amṛta","start":"00:38","end":"02:03","startHours":24.626361951735277,"endHours":26.04820968555861,"quality":"auspicious"},{"name":"Kāla","start":"02:03","end":"03:28","startHours":26.04820968555861,"endHours":27.470057419381945,"quality":"inauspicious"},{"name":"Śubha","start":"03:28","end":"04:54","startHours":27.470057419381945,"endHours":28.891905153205276,"quality":"auspicious"},{"name":"Roga","start":"04:54","end":"06:19","startHours":28.891905153205276,"endHours":30.313752887028606,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:19","end":"07:19","startHours":6.313752887028608,"endHours":7.313752887028608,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:19","end":"08:19","startHours":7.313752887028608,"endHours":8.313752887028608,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:19","end":"09:19","startHours":8.313752887028608,"endHours":9.313752887028608,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:19","end":"10:19","startHours":9.313752887028608,"endHours":10.313752887028608,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:19","end":"11:19","startHours":10.313752887028608,"endHours":11.313752887028608,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:19","end":"12:19","startHours":11.313752887028608,"endHours":12.313752887028608,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:19","end":"13:19","startHours":12.313752887028608,"endHours":13.313752887028608,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:19","end":"14:19","startHours":13.313752887028608,"endHours":14.313752887028608,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:19","end":"15:19","startHours":14.313752887028608,"endHours":15.313752887028608,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:19","end":"16:19","startHours":15.313752887028608,"endHours":16.313752887028606,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:19","end":"17:19","startHours":16.313752887028606,"endHours":17.313752887028606,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:19","end":"18:19","startHours":17.313752887028606,"endHours":18.313752887028606,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:19","end":"19:19","startHours":18.313752887028606,"endHours":19.313752887028606,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:19","end":"20:19","startHours":19.313752887028606,"endHours":20.313752887028606,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:19","end":"21:19","startHours":20.313752887028606,"endHours":21.313752887028606,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:19","end":"22:19","startHours":21.313752887028606,"endHours":22.313752887028606,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:19","end":"23:19","startHours":22.313752887028606,"endHours":23.313752887028606,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:19","end":"00:19","startHours":23.313752887028606,"endHours":24.313752887028606,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:19","end":"01:19","startHours":24.313752887028606,"endHours":25.313752887028606,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:19","end":"02:19","startHours":25.313752887028606,"endHours":26.313752887028606,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:19","end":"03:19","startHours":26.313752887028606,"endHours":27.313752887028606,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:19","end":"04:19","startHours":27.313752887028606,"endHours":28.313752887028606,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:19","end":"05:19","startHours":28.313752887028606,"endHours":29.313752887028606,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:19","end":"06:19","startHours":29.313752887028606,"endHours":30.313752887028606,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"South-East","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":10.733571077131742,"eotMinutes":0.5058828958834352,"ayanamsa":25.7848}},"calendars":{"vikram_samvat":2195,"vikram_samvatsara":"Virodhakṛt","saka_samvat":2060,"saka_samvatsara":"Vilambī","bengali_samvat":1545,"malayalam_era":1314,"nanakshahi_year":669,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Navamī · Vikram 2195 Virodhakṛt · Śaka 2060 Vilambī"},"festivals":[{"id":"rama-navami","name":"Rāma Navamī","name_sanskrit":"राम नवमी","tradition":"Vaishnava","associated_deity":"Rāma (18th avatāra of Krishna)","deity_avatara_index":18,"significance":"Bhagavān Rāma's birth at Ayodhyā. Sūryavaṃśa's most exalted moment.","vrata":true,"primary_observance":"Madhyāhna (noon) abhiṣekam in Ayodhyā tradition","detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":1,"related_chart":"rama","historical_anchor":{"event":"Bhagavān Rāma's birth at Ayodhyā","date_julian":"-1626101-04-03","location":"Ayodhyā"},"sources":["Vālmīki Rāmāyaṇa, Bāla-Kāṇḍa 1.18"]}],"todays_walk":{"walk":{"id":"rama-navami-walk","name":"Rāma Navamī Walk","name_sanskrit":"राम नवमी यात्रा","type":"festival","description":"Vālmīki Bāla-Kāṇḍa selections + BG 4.7-8 (avatāra principle).","step_count":9,"url":"/walk/rama-navami-walk"},"reason":"Today is Rāma Navamī — its dedicated 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 April 18, 2138 CE · Thane, Maharashtra · Vidhyamitra","description":"April 18, 2138 CE for Thane, Maharashtra: Śukla Navamī, sūryodaya 06:19, sūryāsta 18:56.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/2138-04-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/2138-04-18","sa":"https://sa.vidhyamitra.com/city/thane/2138-04-18","hi":"https://hi.vidhyamitra.com/city/thane/2138-04-18","x-default":"https://vidhyamitra.com/city/thane/2138-04-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T15:03:19.569Z","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":"2026-06-01T15:03:19.569Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T15:03:19.569Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}