{"id":"vidhyamitra:city-day:thane:2172-12-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/2172-12-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2172-12-19","date_display":"December 19, 2172 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":2172,"month":12,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514719.770833,"kali_year":5274,"ahargana":1926254.2708,"sun":{"sidereal_longitude":240.6558,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":286.2796,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":45.6238,"elapsed_within_tithi_degrees":9.6238},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":286.2796,"elapsed_within_degrees":6.2796},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":166.9354},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2172,"month":12,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2514719.770833,"ahargana":1926254.2708,"kali_year":5274,"ayanamsa_lahiri":26.2692,"grahas":{"sun":{"sidereal_longitude":241.43516999999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":290.27167,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false,"latitude":-4.267},"mars":{"sidereal_longitude":284.87447,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":246.51766999999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":217.35787000000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":226.92606999999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":326.81336999999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":357.7789,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":177.7789,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"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":2172,"month":12,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514719.770833,"kali_year":5274,"ahargana":1926254.2708,"sun":{"sidereal_longitude":240.6558,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":286.2796,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":45.6238,"elapsed_within_tithi_degrees":9.6238},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":286.2796,"elapsed_within_degrees":6.2796},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":166.9354},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.267,"elongation":45.624},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.267,"opposition_distance":134.376}},"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":"07:07","sunsetLocal":"18:05","solarNoonLocal":"12:36","dayLengthHours":10.97174431271205,"dayLengthDisplay":"10 Hours 58 Mins 18 Secs","nightLengthDisplay":"13 Hours 01 Mins 42 Secs","moonriseLocal":"10:11","moonsetLocal":"21:31","rahuKala":{"name":"Rāhu Kāla","start":"09:51","end":"11:13","startHours":9.853183415753177,"endHours":11.224651454842185,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:58","end":"15:20","startHours":13.967587533020197,"endHours":15.339055572109203,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:07","end":"08:29","startHours":7.110247337575165,"endHours":8.481715376664171,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:40","end":"10:02","startHours":9.670321010541311,"endHours":10.036045820965045,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:34","end":"07:52","startHours":7.567403350604834,"endHours":7.859983198943822,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:14","end":"12:58","startHours":12.230394683507456,"endHours":12.961844304354926,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:39","end":"06:23","startHours":5.647348095880226,"endHours":6.3787977167276955,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:12","end":"07:07","startHours":6.195935311515828,"endHours":7.110247337575165,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:09","startHours":14.424743546049864,"endHours":15.156193166897335,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:53","end":"18:17","startHours":17.881991650287215,"endHours":18.281991650287214,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:05","end":"18:32","startHours":18.081991650287215,"endHours":18.539147663316882,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:50","end":"19:35","startHours":17.831991650287215,"endHours":19.581991650287215,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:14","end":"00:58","startHours":24.230394683507456,"endHours":24.961844304354926,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:07","end":"08:29","startHours":7.110247337575165,"endHours":8.481715376664171,"quality":"inauspicious"},{"name":"Śubha","start":"08:29","end":"09:51","startHours":8.481715376664171,"endHours":9.853183415753177,"quality":"auspicious"},{"name":"Roga","start":"09:51","end":"11:13","startHours":9.853183415753177,"endHours":11.224651454842185,"quality":"inauspicious"},{"name":"Udveg","start":"11:13","end":"12:36","startHours":11.224651454842185,"endHours":12.596119493931191,"quality":"inauspicious"},{"name":"Chala","start":"12:36","end":"13:58","startHours":12.596119493931191,"endHours":13.967587533020197,"quality":"neutral"},{"name":"Labha","start":"13:58","end":"15:20","startHours":13.967587533020197,"endHours":15.339055572109203,"quality":"auspicious"},{"name":"Amṛta","start":"15:20","end":"16:43","startHours":15.339055572109203,"endHours":16.71052361119821,"quality":"auspicious"},{"name":"Kāla","start":"16:43","end":"18:05","startHours":16.71052361119821,"endHours":18.081991650287215,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:05","end":"19:43","startHours":18.081991650287215,"endHours":19.71052361119821,"quality":"auspicious"},{"name":"Amṛta","start":"19:43","end":"21:20","startHours":19.71052361119821,"endHours":21.339055572109203,"quality":"auspicious"},{"name":"Kāla","start":"21:20","end":"22:58","startHours":21.339055572109203,"endHours":22.967587533020197,"quality":"inauspicious"},{"name":"Śubha","start":"22:58","end":"00:36","startHours":22.967587533020197,"endHours":24.59611949393119,"quality":"auspicious"},{"name":"Roga","start":"00:36","end":"02:13","startHours":24.59611949393119,"endHours":26.22465145484218,"quality":"inauspicious"},{"name":"Udveg","start":"02:13","end":"03:51","startHours":26.22465145484218,"endHours":27.85318341575318,"quality":"inauspicious"},{"name":"Chala","start":"03:51","end":"05:29","startHours":27.85318341575318,"endHours":29.48171537666417,"quality":"neutral"},{"name":"Labha","start":"05:29","end":"07:07","startHours":29.48171537666417,"endHours":31.110247337575167,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:07","end":"08:07","startHours":7.110247337575165,"endHours":8.110247337575165,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:07","end":"09:07","startHours":8.110247337575165,"endHours":9.110247337575165,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:07","end":"10:07","startHours":9.110247337575165,"endHours":10.110247337575165,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:07","end":"11:07","startHours":10.110247337575165,"endHours":11.110247337575165,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:07","end":"12:07","startHours":11.110247337575165,"endHours":12.110247337575165,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:07","end":"13:07","startHours":12.110247337575165,"endHours":13.110247337575165,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:07","end":"14:07","startHours":13.110247337575165,"endHours":14.110247337575165,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:07","end":"15:07","startHours":14.110247337575165,"endHours":15.110247337575165,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:07","end":"16:07","startHours":15.110247337575165,"endHours":16.110247337575167,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:07","end":"17:07","startHours":16.110247337575167,"endHours":17.110247337575167,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:07","end":"18:07","startHours":17.110247337575167,"endHours":18.110247337575167,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:07","end":"19:07","startHours":18.110247337575167,"endHours":19.110247337575167,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:07","end":"20:07","startHours":19.110247337575167,"endHours":20.110247337575167,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:07","end":"21:07","startHours":20.110247337575167,"endHours":21.110247337575167,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:07","end":"22:07","startHours":21.110247337575167,"endHours":22.110247337575167,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:07","end":"23:07","startHours":22.110247337575167,"endHours":23.110247337575167,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:07","end":"00:07","startHours":23.110247337575167,"endHours":24.110247337575167,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:07","end":"01:07","startHours":24.110247337575167,"endHours":25.110247337575167,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:07","end":"02:07","startHours":25.110247337575167,"endHours":26.110247337575167,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:07","end":"03:07","startHours":26.110247337575167,"endHours":27.110247337575167,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:07","end":"04:07","startHours":27.110247337575167,"endHours":28.110247337575167,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:07","end":"05:07","startHours":28.110247337575167,"endHours":29.110247337575167,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:07","end":"06:07","startHours":29.110247337575167,"endHours":30.110247337575167,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:07","end":"07:07","startHours":30.110247337575167,"endHours":31.110247337575167,"planetary_lord":"Mercury"}],"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":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.416568287966513,"eotMinutes":2.3204303641286352,"ayanamsa":26.2692}},"calendars":{"vikram_samvat":2229,"vikram_samvatsara":"Pārthiva","saka_samvat":2094,"saka_samvatsara":"Aṅgirasa","bengali_samvat":1579,"malayalam_era":1348,"nanakshahi_year":703,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Caturthī · Vikram 2229 Pārthiva · Śaka 2094 Aṅgirasa"},"festivals":[{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 December 19, 2172 CE · Thane, Maharashtra · Vidhyamitra","description":"December 19, 2172 CE for Thane, Maharashtra: Śukla Caturthī, sūryodaya 07:07, sūryāsta 18:05.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/2172-12-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/2172-12-19","sa":"https://sa.vidhyamitra.com/city/thane/2172-12-19","hi":"https://hi.vidhyamitra.com/city/thane/2172-12-19","x-default":"https://vidhyamitra.com/city/thane/2172-12-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T01:41:32.936Z","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":"2026-06-01T01:41:32.936Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T01:41:32.936Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}