{"id":"vidhyamitra:city-day:thane:2175-01-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/2175-01-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2175-01-21","date_display":"January 21, 2175 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":2175,"month":1,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515482.770833,"kali_year":5276,"ahargana":1927017.2708,"sun":{"sidereal_longitude":274.0317,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":251.551,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":337.5193,"elapsed_within_tithi_degrees":1.5193},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":251.551,"elapsed_within_degrees":11.551},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":165.5828},"karana":{"half_tithi_index":56,"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":2175,"month":1,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2515482.770833,"ahargana":1927017.2708,"kali_year":5276,"ayanamsa_lahiri":26.2984,"grahas":{"sun":{"sidereal_longitude":274.5269169999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":252.88951699999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false,"latitude":-4.1038},"mars":{"sidereal_longitude":327.86191699999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":248.35411699999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":274.807917,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":304.503117,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":352.948717,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":317.3515,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":137.3515,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":2175,"month":1,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515482.770833,"kali_year":5276,"ahargana":1927017.2708,"sun":{"sidereal_longitude":274.0317,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":251.551,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":337.5193,"elapsed_within_tithi_degrees":1.5193},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":251.551,"elapsed_within_degrees":11.551},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":165.5828},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.104,"elongation":22.481},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.104,"opposition_distance":157.519}},"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":"18:24","solarNoonLocal":"12:49","dayLengthHours":11.155667487797446,"dayLengthDisplay":"11 Hours 09 Mins 20 Secs","nightLengthDisplay":"12 Hours 50 Mins 40 Secs","moonriseLocal":"05:54","moonsetLocal":"16:51","rahuKala":{"name":"Rāhu Kāla","start":"10:02","end":"11:26","startHours":10.033471982202839,"endHours":11.427930418177521,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:13","end":"15:37","startHours":14.216847290126882,"endHours":15.611305726101563,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:15","end":"08:38","startHours":7.2445551102534775,"endHours":8.639013546228158,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:51","end":"10:13","startHours":9.847544190739548,"endHours":10.21939977366613,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:43","end":"08:00","startHours":7.709374588911705,"endHours":8.00685905525297,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:27","end":"13:12","startHours":12.45053327122562,"endHours":13.194244437078783,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:45","end":"06:30","startHours":5.7571327785471516,"endHours":6.500843944400314,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:19","end":"07:15","startHours":6.314916152937023,"endHours":7.2445551102534775,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:41","end":"15:26","startHours":14.681666768785108,"endHours":15.425377934638272,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:12","end":"18:36","startHours":18.200222598050924,"endHours":18.600222598050923,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:24","end":"18:52","startHours":18.400222598050924,"endHours":18.865042076709152,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:09","end":"19:54","startHours":18.150222598050924,"endHours":19.900222598050924,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:27","end":"01:12","startHours":24.45053327122562,"endHours":25.194244437078783,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:15","end":"08:38","startHours":7.2445551102534775,"endHours":8.639013546228158,"quality":"inauspicious"},{"name":"Śubha","start":"08:38","end":"10:02","startHours":8.639013546228158,"endHours":10.033471982202839,"quality":"auspicious"},{"name":"Roga","start":"10:02","end":"11:26","startHours":10.033471982202839,"endHours":11.427930418177521,"quality":"inauspicious"},{"name":"Udveg","start":"11:26","end":"12:49","startHours":11.427930418177521,"endHours":12.822388854152202,"quality":"inauspicious"},{"name":"Chala","start":"12:49","end":"14:13","startHours":12.822388854152202,"endHours":14.216847290126882,"quality":"neutral"},{"name":"Labha","start":"14:13","end":"15:37","startHours":14.216847290126882,"endHours":15.611305726101563,"quality":"auspicious"},{"name":"Amṛta","start":"15:37","end":"17:00","startHours":15.611305726101563,"endHours":17.005764162076243,"quality":"auspicious"},{"name":"Kāla","start":"17:00","end":"18:24","startHours":17.005764162076243,"endHours":18.400222598050924,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:24","end":"20:00","startHours":18.400222598050924,"endHours":20.005764162076243,"quality":"auspicious"},{"name":"Amṛta","start":"20:00","end":"21:37","startHours":20.005764162076243,"endHours":21.611305726101563,"quality":"auspicious"},{"name":"Kāla","start":"21:37","end":"23:13","startHours":21.611305726101563,"endHours":23.216847290126882,"quality":"inauspicious"},{"name":"Śubha","start":"23:13","end":"00:49","startHours":23.216847290126882,"endHours":24.8223888541522,"quality":"auspicious"},{"name":"Roga","start":"00:49","end":"02:26","startHours":24.8223888541522,"endHours":26.427930418177517,"quality":"inauspicious"},{"name":"Udveg","start":"02:26","end":"04:02","startHours":26.427930418177517,"endHours":28.03347198220284,"quality":"inauspicious"},{"name":"Chala","start":"04:02","end":"05:38","startHours":28.03347198220284,"endHours":29.639013546228156,"quality":"neutral"},{"name":"Labha","start":"05:38","end":"07:15","startHours":29.639013546228156,"endHours":31.24455511025348,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:15","end":"08:15","startHours":7.2445551102534775,"endHours":8.244555110253478,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:15","end":"09:15","startHours":8.244555110253478,"endHours":9.244555110253478,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:15","end":"10:15","startHours":9.244555110253478,"endHours":10.244555110253478,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:15","end":"11:15","startHours":10.244555110253478,"endHours":11.244555110253478,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:15","end":"12:15","startHours":11.244555110253478,"endHours":12.244555110253478,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:15","end":"13:15","startHours":12.244555110253478,"endHours":13.244555110253478,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:15","end":"14:15","startHours":13.244555110253478,"endHours":14.244555110253478,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:15","end":"15:15","startHours":14.244555110253478,"endHours":15.244555110253478,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:15","end":"16:15","startHours":15.244555110253478,"endHours":16.24455511025348,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:15","end":"17:15","startHours":16.24455511025348,"endHours":17.24455511025348,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:15","end":"18:15","startHours":17.24455511025348,"endHours":18.24455511025348,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:15","end":"19:15","startHours":18.24455511025348,"endHours":19.24455511025348,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:15","end":"20:15","startHours":19.24455511025348,"endHours":20.24455511025348,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:15","end":"21:15","startHours":20.24455511025348,"endHours":21.24455511025348,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:15","end":"22:15","startHours":21.24455511025348,"endHours":22.24455511025348,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:15","end":"23:15","startHours":22.24455511025348,"endHours":23.24455511025348,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:15","end":"00:15","startHours":23.24455511025348,"endHours":24.24455511025348,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:15","end":"01:15","startHours":24.24455511025348,"endHours":25.24455511025348,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:15","end":"02:15","startHours":25.24455511025348,"endHours":26.24455511025348,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:15","end":"03:15","startHours":26.24455511025348,"endHours":27.24455511025348,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:15","end":"04:15","startHours":27.24455511025348,"endHours":28.24455511025348,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:15","end":"05:15","startHours":28.24455511025348,"endHours":29.24455511025348,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:15","end":"06:15","startHours":29.24455511025348,"endHours":30.24455511025348,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:15","end":"07:15","startHours":30.24455511025348,"endHours":31.24455511025348,"planetary_lord":"Mercury"}],"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":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-19.97110568626506,"eotMinutes":-11.255731249132124,"ayanamsa":26.2984}},"calendars":{"vikram_samvat":2232,"vikram_samvatsara":"Sarvadhāri","saka_samvat":2097,"saka_samvatsara":"Yuva","bengali_samvat":1582,"malayalam_era":1351,"nanakshahi_year":706,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Caturdaśī · Vikram 2232 Sarvadhāri · Śaka 2097 Yuva"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"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 January 21, 2175 CE · Thane, Maharashtra · Vidhyamitra","description":"January 21, 2175 CE for Thane, Maharashtra: Kṛṣṇa Caturdaśī, sūryodaya 07:15, sūryāsta 18:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/2175-01-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/2175-01-21","sa":"https://sa.vidhyamitra.com/city/thane/2175-01-21","hi":"https://hi.vidhyamitra.com/city/thane/2175-01-21","x-default":"https://vidhyamitra.com/city/thane/2175-01-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T09:47:13.077Z","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":"2026-05-31T09:47:13.077Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T09:47:13.077Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}