{"id":"vidhyamitra:city-day:thane:2091-01-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/2091-01-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2091-01-17","date_display":"January 17, 2091 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":2091,"month":1,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2484798.770833,"kali_year":5192,"ahargana":1896333.2708,"sun":{"sidereal_longitude":271.7074,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":240.1906,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":328.4832,"elapsed_within_tithi_degrees":4.4832},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":240.1906,"elapsed_within_degrees":0.1906},"yoga":{"number":12,"name":"Dhruva","sum_longitude":151.898},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2091,"month":1,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2484798.770833,"ahargana":1896333.2708,"kali_year":5192,"ayanamsa_lahiri":25.1248,"grahas":{"sun":{"sidereal_longitude":272.02447200000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":239.80717200000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false,"latitude":4.4659},"mars":{"sidereal_longitude":148.95507199999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":258.52277200000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":250.985272,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"venus":{"sidereal_longitude":226.48607199999992,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":53.529472,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":143.1375,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":323.1375,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":2091,"month":1,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2484798.770833,"kali_year":5192,"ahargana":1896333.2708,"sun":{"sidereal_longitude":271.7074,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":240.1906,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":328.4832,"elapsed_within_tithi_degrees":4.4832},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":240.1906,"elapsed_within_degrees":0.1906},"yoga":{"number":12,"name":"Dhruva","sum_longitude":151.898},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.466,"elongation":31.517},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.466,"opposition_distance":148.483}},"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":"07:15","sunsetLocal":"18:22","solarNoonLocal":"12:48","dayLengthHours":11.11607732364523,"dayLengthDisplay":"11 Hours 06 Mins 58 Secs","nightLengthDisplay":"12 Hours 53 Mins 02 Secs","moonriseLocal":"05:11","moonsetLocal":"16:07","rahuKala":{"name":"Rāhu Kāla","start":"12:48","end":"14:11","startHours":12.801894812435144,"endHours":14.191404477890796,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:38","end":"10:01","startHours":8.633365816068181,"endHours":10.022875481523835,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:25","end":"12:48","startHours":11.412385146979489,"endHours":12.801894812435144,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:50","end":"10:12","startHours":9.837607526129748,"endHours":10.208143436917922,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:42","end":"08:00","startHours":7.707026039097745,"endHours":8.003454767728284,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:26","end":"13:10","startHours":12.43135890164697,"endHours":13.172430723223318,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:46","end":"06:30","startHours":5.761712507459831,"endHours":6.502784329036179,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:19","end":"07:15","startHours":6.317516373642092,"endHours":7.243856150612528,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:39","end":"15:24","startHours":14.654574366376014,"endHours":15.395646187952362,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:10","end":"18:34","startHours":18.15993347425776,"endHours":18.559933474257758,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:22","end":"18:49","startHours":18.35993347425776,"endHours":18.823103362742977,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:07","end":"19:52","startHours":18.10993347425776,"endHours":19.85993347425776,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:26","end":"01:10","startHours":24.43135890164697,"endHours":25.172430723223318,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:15","end":"08:38","startHours":7.243856150612528,"endHours":8.633365816068181,"quality":"auspicious"},{"name":"Amṛta","start":"08:38","end":"10:01","startHours":8.633365816068181,"endHours":10.022875481523835,"quality":"auspicious"},{"name":"Kāla","start":"10:01","end":"11:25","startHours":10.022875481523835,"endHours":11.412385146979489,"quality":"inauspicious"},{"name":"Śubha","start":"11:25","end":"12:48","startHours":11.412385146979489,"endHours":12.801894812435144,"quality":"auspicious"},{"name":"Roga","start":"12:48","end":"14:11","startHours":12.801894812435144,"endHours":14.191404477890796,"quality":"inauspicious"},{"name":"Udveg","start":"14:11","end":"15:35","startHours":14.191404477890796,"endHours":15.580914143346451,"quality":"inauspicious"},{"name":"Chala","start":"15:35","end":"16:58","startHours":15.580914143346451,"endHours":16.970423808802103,"quality":"neutral"},{"name":"Labha","start":"16:58","end":"18:22","startHours":16.970423808802103,"endHours":18.35993347425776,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:22","end":"19:58","startHours":18.35993347425776,"endHours":19.970423808802103,"quality":"inauspicious"},{"name":"Chala","start":"19:58","end":"21:35","startHours":19.970423808802103,"endHours":21.58091414334645,"quality":"neutral"},{"name":"Labha","start":"21:35","end":"23:11","startHours":21.58091414334645,"endHours":23.191404477890796,"quality":"auspicious"},{"name":"Amṛta","start":"23:11","end":"00:48","startHours":23.191404477890796,"endHours":24.801894812435144,"quality":"auspicious"},{"name":"Kāla","start":"00:48","end":"02:25","startHours":24.801894812435144,"endHours":26.41238514697949,"quality":"inauspicious"},{"name":"Śubha","start":"02:25","end":"04:01","startHours":26.41238514697949,"endHours":28.022875481523833,"quality":"auspicious"},{"name":"Roga","start":"04:01","end":"05:38","startHours":28.022875481523833,"endHours":29.63336581606818,"quality":"inauspicious"},{"name":"Udveg","start":"05:38","end":"07:15","startHours":29.63336581606818,"endHours":31.24385615061253,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:15","end":"08:15","startHours":7.243856150612528,"endHours":8.243856150612528,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:15","end":"09:15","startHours":8.243856150612528,"endHours":9.243856150612528,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:15","end":"10:15","startHours":9.243856150612528,"endHours":10.243856150612528,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:15","end":"11:15","startHours":10.243856150612528,"endHours":11.243856150612528,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:15","end":"12:15","startHours":11.243856150612528,"endHours":12.243856150612528,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:15","end":"13:15","startHours":12.243856150612528,"endHours":13.243856150612528,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:15","end":"14:15","startHours":13.243856150612528,"endHours":14.243856150612528,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:15","end":"15:15","startHours":14.243856150612528,"endHours":15.243856150612528,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:15","end":"16:15","startHours":15.243856150612528,"endHours":16.24385615061253,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:15","end":"17:15","startHours":16.24385615061253,"endHours":17.24385615061253,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:15","end":"18:15","startHours":17.24385615061253,"endHours":18.24385615061253,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:15","end":"19:15","startHours":18.24385615061253,"endHours":19.24385615061253,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:15","end":"20:15","startHours":19.24385615061253,"endHours":20.24385615061253,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:15","end":"21:15","startHours":20.24385615061253,"endHours":21.24385615061253,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:15","end":"22:15","startHours":21.24385615061253,"endHours":22.24385615061253,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:15","end":"23:15","startHours":22.24385615061253,"endHours":23.24385615061253,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:15","end":"00:15","startHours":23.24385615061253,"endHours":24.24385615061253,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:15","end":"01:15","startHours":24.24385615061253,"endHours":25.24385615061253,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:15","end":"02:15","startHours":25.24385615061253,"endHours":26.24385615061253,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:15","end":"03:15","startHours":26.24385615061253,"endHours":27.24385615061253,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:15","end":"04:15","startHours":27.24385615061253,"endHours":28.24385615061253,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:15","end":"05:15","startHours":28.24385615061253,"endHours":29.24385615061253,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:15","end":"06:15","startHours":29.24385615061253,"endHours":30.24385615061253,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:15","end":"07:15","startHours":30.24385615061253,"endHours":31.24385615061253,"planetary_lord":"Sun"}],"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":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"North-East","rahuVasa":"South-West","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-20.72669155902856,"eotMinutes":-10.026088746108654,"ayanamsa":25.1248}},"calendars":{"vikram_samvat":2148,"vikram_samvatsara":"Raktākṣī","saka_samvat":2013,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1498,"malayalam_era":1267,"nanakshahi_year":622,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Trayodaśī · Vikram 2148 Raktākṣī · Śaka 2013 Virodhakṛt"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2},{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 January 17, 2091 CE · Thane, Maharashtra · Vidhyamitra","description":"January 17, 2091 CE for Thane, Maharashtra: Kṛṣṇa Trayodaśī, sūryodaya 07:15, sūryāsta 18:22.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/2091-01-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/2091-01-17","sa":"https://sa.vidhyamitra.com/city/thane/2091-01-17","hi":"https://hi.vidhyamitra.com/city/thane/2091-01-17","x-default":"https://vidhyamitra.com/city/thane/2091-01-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-24T14:40:00.776Z","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":"2026-05-24T14:40:00.776Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-24T14:40:00.776Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}