{"id":"vidhyamitra:city-day:thane:2181-12-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/2181-12-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2181-12-10","date_display":"December 10, 2181 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":2181,"month":12,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517997.770833,"kali_year":5283,"ahargana":1929532.2708,"sun":{"sidereal_longitude":231.0928,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":276.9843,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":45.8915,"elapsed_within_tithi_degrees":9.8915},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":276.9843,"elapsed_within_degrees":10.3176},"yoga":{"number":12,"name":"Dhruva","sum_longitude":148.077},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2181,"month":12,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517997.770833,"ahargana":1929532.2708,"kali_year":5283,"ayanamsa_lahiri":26.3946,"grahas":{"sun":{"sidereal_longitude":231.97452599999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":281.18622600000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false,"latitude":4.4943},"mars":{"sidereal_longitude":224.790026,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":248.60732600000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":143.37152600000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":202.693626,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":95.79022599999996,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":184.0947,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":4.0947,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":2181,"month":12,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517997.770833,"kali_year":5283,"ahargana":1929532.2708,"sun":{"sidereal_longitude":231.0928,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":276.9843,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":45.8915,"elapsed_within_tithi_degrees":9.8915},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":276.9843,"elapsed_within_degrees":10.3176},"yoga":{"number":12,"name":"Dhruva","sum_longitude":148.077},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.494,"elongation":45.892},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.494,"opposition_distance":134.108}},"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":"07:02","sunsetLocal":"18:02","solarNoonLocal":"12:32","dayLengthHours":10.998409256778661,"dayLengthDisplay":"10 Hours 59 Mins 54 Secs","nightLengthDisplay":"13 Hours 00 Mins 06 Secs","moonriseLocal":"10:12","moonsetLocal":"21:25","rahuKala":{"name":"Rāhu Kāla","start":"08:24","end":"09:47","startHours":8.403222996403752,"endHours":9.778024153501084,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:09","end":"12:32","startHours":11.152825310598416,"endHours":12.52762646769575,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:54","end":"15:17","startHours":13.90242762479308,"endHours":15.277228781890415,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:36","end":"09:58","startHours":9.594717332554772,"endHours":9.961330974447396,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:29","end":"07:47","startHours":7.4866888916721965,"endHours":7.7799798051862945,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:10","end":"12:54","startHours":12.161012825803127,"endHours":12.89424010958837,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:34","end":"06:18","startHours":5.561967271735931,"endHours":6.295194555521174,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:07","end":"07:02","startHours":6.1118877345748635,"endHours":7.028421839306419,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:06","startHours":14.36069467715886,"endHours":15.093921960944103,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:50","end":"18:14","startHours":17.82683109608508,"endHours":18.22683109608508,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:02","end":"18:29","startHours":18.02683109608508,"endHours":18.485098148450856,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:47","end":"19:32","startHours":17.77683109608508,"endHours":19.52683109608508,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:10","end":"00:54","startHours":24.161012825803123,"endHours":24.89424010958837,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:02","end":"08:24","startHours":7.028421839306419,"endHours":8.403222996403752,"quality":"auspicious"},{"name":"Kāla","start":"08:24","end":"09:47","startHours":8.403222996403752,"endHours":9.778024153501084,"quality":"inauspicious"},{"name":"Śubha","start":"09:47","end":"11:09","startHours":9.778024153501084,"endHours":11.152825310598416,"quality":"auspicious"},{"name":"Roga","start":"11:09","end":"12:32","startHours":11.152825310598416,"endHours":12.52762646769575,"quality":"inauspicious"},{"name":"Udveg","start":"12:32","end":"13:54","startHours":12.52762646769575,"endHours":13.90242762479308,"quality":"inauspicious"},{"name":"Chala","start":"13:54","end":"15:17","startHours":13.90242762479308,"endHours":15.277228781890415,"quality":"neutral"},{"name":"Labha","start":"15:17","end":"16:39","startHours":15.277228781890415,"endHours":16.65202993898775,"quality":"auspicious"},{"name":"Amṛta","start":"16:39","end":"18:02","startHours":16.65202993898775,"endHours":18.02683109608508,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:02","end":"19:39","startHours":18.02683109608508,"endHours":19.652029938987745,"quality":"neutral"},{"name":"Labha","start":"19:39","end":"21:17","startHours":19.652029938987745,"endHours":21.277228781890415,"quality":"auspicious"},{"name":"Amṛta","start":"21:17","end":"22:54","startHours":21.277228781890415,"endHours":22.90242762479308,"quality":"auspicious"},{"name":"Kāla","start":"22:54","end":"00:32","startHours":22.90242762479308,"endHours":24.527626467695747,"quality":"inauspicious"},{"name":"Śubha","start":"00:32","end":"02:09","startHours":24.527626467695747,"endHours":26.152825310598416,"quality":"auspicious"},{"name":"Roga","start":"02:09","end":"03:47","startHours":26.152825310598416,"endHours":27.778024153501082,"quality":"inauspicious"},{"name":"Udveg","start":"03:47","end":"05:24","startHours":27.778024153501082,"endHours":29.40322299640375,"quality":"inauspicious"},{"name":"Chala","start":"05:24","end":"07:02","startHours":29.40322299640375,"endHours":31.028421839306418,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:02","end":"08:02","startHours":7.028421839306419,"endHours":8.028421839306418,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:02","end":"09:02","startHours":8.028421839306418,"endHours":9.028421839306418,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:02","end":"10:02","startHours":9.028421839306418,"endHours":10.028421839306418,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:02","end":"11:02","startHours":10.028421839306418,"endHours":11.028421839306418,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:02","end":"12:02","startHours":11.028421839306418,"endHours":12.028421839306418,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:02","end":"13:02","startHours":12.028421839306418,"endHours":13.028421839306418,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:02","end":"14:02","startHours":13.028421839306418,"endHours":14.028421839306418,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:02","end":"15:02","startHours":14.028421839306418,"endHours":15.028421839306418,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:02","end":"16:02","startHours":15.028421839306418,"endHours":16.028421839306418,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:02","end":"17:02","startHours":16.028421839306418,"endHours":17.028421839306418,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:02","end":"18:02","startHours":17.028421839306418,"endHours":18.028421839306418,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:02","end":"19:02","startHours":18.028421839306418,"endHours":19.028421839306418,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:02","end":"20:02","startHours":19.028421839306418,"endHours":20.028421839306418,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:02","end":"21:02","startHours":20.028421839306418,"endHours":21.028421839306418,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:02","end":"22:02","startHours":21.028421839306418,"endHours":22.028421839306418,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:02","end":"23:02","startHours":22.028421839306418,"endHours":23.028421839306418,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:02","end":"00:02","startHours":23.028421839306418,"endHours":24.028421839306418,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:02","end":"01:02","startHours":24.028421839306418,"endHours":25.028421839306418,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:02","end":"02:02","startHours":25.028421839306418,"endHours":26.028421839306418,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:02","end":"03:02","startHours":26.028421839306418,"endHours":27.028421839306418,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:02","end":"04:02","startHours":27.028421839306418,"endHours":28.028421839306418,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:02","end":"05:02","startHours":28.028421839306418,"endHours":29.028421839306418,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:02","end":"06:02","startHours":29.028421839306418,"endHours":30.028421839306418,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:02","end":"07:02","startHours":30.028421839306418,"endHours":31.028421839306418,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"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":"North-East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-22.92748014990404,"eotMinutes":6.4300119382551255,"ayanamsa":26.3946}},"calendars":{"vikram_samvat":2238,"vikram_samvatsara":"Jaya","saka_samvat":2103,"saka_samvatsara":"Vṛṣa","bengali_samvat":1588,"malayalam_era":1357,"nanakshahi_year":712,"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":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Caturthī · Vikram 2238 Jaya · Śaka 2103 Vṛṣa"},"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":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 10, 2181 CE · Thane, Maharashtra · Vidhyamitra","description":"December 10, 2181 CE for Thane, Maharashtra: Śukla Caturthī, sūryodaya 07:02, sūryāsta 18:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/2181-12-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/2181-12-10","sa":"https://sa.vidhyamitra.com/city/thane/2181-12-10","hi":"https://hi.vidhyamitra.com/city/thane/2181-12-10","x-default":"https://vidhyamitra.com/city/thane/2181-12-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T13:23:19.318Z","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":"2026-05-31T13:23:19.318Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T13:23:19.318Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}