{"id":"vidhyamitra:city-day:thane:2001-01-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/2001-01-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2001-01-13","date_display":"January 13, 2001 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":2001,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451922.770833,"kali_year":5102,"ahargana":1863457.2708,"sun":{"sidereal_longitude":268.9225,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":130.939,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":222.0166,"elapsed_within_tithi_degrees":6.0166},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":130.939,"elapsed_within_degrees":10.939},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":39.8615},"karana":{"half_tithi_index":37,"name":"Bālava"},"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":2001,"month":1,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451922.770833,"ahargana":1863457.2708,"kali_year":5102,"ayanamsa_lahiri":23.8674,"grahas":{"sun":{"sidereal_longitude":269.052277,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":133.99917700000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false,"latitude":3.2285},"mars":{"sidereal_longitude":198.017377,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":280.3082770000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":37.548677,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":316.06297700000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":30.232477000000017,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":85.0662,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":265.0662,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"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":2001,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451922.770833,"kali_year":5102,"ahargana":1863457.2708,"sun":{"sidereal_longitude":268.9225,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":130.939,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":222.0166,"elapsed_within_tithi_degrees":6.0166},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":130.939,"elapsed_within_degrees":10.939},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":39.8615},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.228,"elongation":137.983},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.228,"opposition_distance":42.017}},"eclipse_window_40days":[{"offset_days":-3,"type":"lunar","occurs":true,"moon_latitude":0.182,"opposition_distance":1.705}]},"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":"07:14","sunsetLocal":"18:19","solarNoonLocal":"12:47","dayLengthHours":11.075698942555924,"dayLengthDisplay":"11 Hours 04 Mins 33 Secs","nightLengthDisplay":"12 Hours 55 Mins 27 Secs","moonriseLocal":"21:32","moonsetLocal":"10:01","rahuKala":{"name":"Rāhu Kāla","start":"10:01","end":"11:24","startHours":10.009800789217248,"endHours":11.394263157036738,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:10","end":"15:33","startHours":14.163187892675719,"endHours":15.54765026049521,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:14","end":"08:38","startHours":7.240876053578266,"endHours":8.625338421397757,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:50","end":"10:12","startHours":9.825205806841314,"endHours":10.194395771593179,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:42","end":"08:00","startHours":7.702363509518096,"endHours":7.997715481319587,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:25","end":"13:09","startHours":12.409535560104363,"endHours":13.147915489608092,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:46","end":"06:30","startHours":5.76411619457081,"endHours":6.502496124074538,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:19","end":"07:14","startHours":6.317901141698606,"endHours":7.240876053578266,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:37","end":"15:22","startHours":14.624675348615549,"endHours":15.363055278119276,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:07","end":"18:31","startHours":18.11657499613419,"endHours":18.51657499613419,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:19","end":"18:47","startHours":18.31657499613419,"endHours":18.77806245207402,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:04","end":"19:49","startHours":18.06657499613419,"endHours":19.81657499613419,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:25","end":"01:09","startHours":24.409535560104363,"endHours":25.147915489608092,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:14","end":"08:38","startHours":7.240876053578266,"endHours":8.625338421397757,"quality":"inauspicious"},{"name":"Śubha","start":"08:38","end":"10:01","startHours":8.625338421397757,"endHours":10.009800789217248,"quality":"auspicious"},{"name":"Roga","start":"10:01","end":"11:24","startHours":10.009800789217248,"endHours":11.394263157036738,"quality":"inauspicious"},{"name":"Udveg","start":"11:24","end":"12:47","startHours":11.394263157036738,"endHours":12.778725524856227,"quality":"inauspicious"},{"name":"Chala","start":"12:47","end":"14:10","startHours":12.778725524856227,"endHours":14.163187892675719,"quality":"neutral"},{"name":"Labha","start":"14:10","end":"15:33","startHours":14.163187892675719,"endHours":15.54765026049521,"quality":"auspicious"},{"name":"Amṛta","start":"15:33","end":"16:56","startHours":15.54765026049521,"endHours":16.932112628314698,"quality":"auspicious"},{"name":"Kāla","start":"16:56","end":"18:19","startHours":16.932112628314698,"endHours":18.31657499613419,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:19","end":"19:56","startHours":18.31657499613419,"endHours":19.932112628314698,"quality":"auspicious"},{"name":"Amṛta","start":"19:56","end":"21:33","startHours":19.932112628314698,"endHours":21.54765026049521,"quality":"auspicious"},{"name":"Kāla","start":"21:33","end":"23:10","startHours":21.54765026049521,"endHours":23.16318789267572,"quality":"inauspicious"},{"name":"Śubha","start":"23:10","end":"00:47","startHours":23.16318789267572,"endHours":24.778725524856227,"quality":"auspicious"},{"name":"Roga","start":"00:47","end":"02:24","startHours":24.778725524856227,"endHours":26.394263157036736,"quality":"inauspicious"},{"name":"Udveg","start":"02:24","end":"04:01","startHours":26.394263157036736,"endHours":28.009800789217245,"quality":"inauspicious"},{"name":"Chala","start":"04:01","end":"05:38","startHours":28.009800789217245,"endHours":29.625338421397757,"quality":"neutral"},{"name":"Labha","start":"05:38","end":"07:14","startHours":29.625338421397757,"endHours":31.240876053578265,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:14","end":"08:14","startHours":7.240876053578266,"endHours":8.240876053578265,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:14","end":"09:14","startHours":8.240876053578265,"endHours":9.240876053578265,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:14","end":"10:14","startHours":9.240876053578265,"endHours":10.240876053578265,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:14","end":"11:14","startHours":10.240876053578265,"endHours":11.240876053578265,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:14","end":"12:14","startHours":11.240876053578265,"endHours":12.240876053578265,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:14","end":"13:14","startHours":12.240876053578265,"endHours":13.240876053578265,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:14","end":"14:14","startHours":13.240876053578265,"endHours":14.240876053578265,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:14","end":"15:14","startHours":14.240876053578265,"endHours":15.240876053578265,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:14","end":"16:14","startHours":15.240876053578265,"endHours":16.240876053578265,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:14","end":"17:14","startHours":16.240876053578265,"endHours":17.240876053578265,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:14","end":"18:14","startHours":17.240876053578265,"endHours":18.240876053578265,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:14","end":"19:14","startHours":18.240876053578265,"endHours":19.240876053578265,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:14","end":"20:14","startHours":19.240876053578265,"endHours":20.240876053578265,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:14","end":"21:14","startHours":20.240876053578265,"endHours":21.240876053578265,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:14","end":"22:14","startHours":21.240876053578265,"endHours":22.240876053578265,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:14","end":"23:14","startHours":22.240876053578265,"endHours":23.240876053578265,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:14","end":"00:14","startHours":23.240876053578265,"endHours":24.240876053578265,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:14","end":"01:14","startHours":24.240876053578265,"endHours":25.240876053578265,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:14","end":"02:14","startHours":25.240876053578265,"endHours":26.240876053578265,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:14","end":"03:14","startHours":26.240876053578265,"endHours":27.240876053578265,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:14","end":"04:14","startHours":27.240876053578265,"endHours":28.240876053578265,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:14","end":"05:14","startHours":28.240876053578265,"endHours":29.240876053578265,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:14","end":"06:14","startHours":29.240876053578265,"endHours":30.240876053578265,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:14","end":"07:14","startHours":30.240876053578265,"endHours":31.240876053578265,"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","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"West","rahuVasa":"East","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-21.489589459779342,"eotMinutes":-8.635931491373626,"ayanamsa":23.8674}},"calendars":{"vikram_samvat":2058,"vikram_samvatsara":"Jaya","saka_samvat":1923,"saka_samvatsara":"Vṛṣa","bengali_samvat":1408,"malayalam_era":1177,"nanakshahi_year":532,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Caturthī · Vikram 2058 Jaya · Śaka 1923 Vṛṣa"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"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 13, 2001 CE · Thane, Maharashtra · Vidhyamitra","description":"January 13, 2001 CE for Thane, Maharashtra: Kṛṣṇa Caturthī, sūryodaya 07:14, sūryāsta 18:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/2001-01-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/2001-01-13","sa":"https://sa.vidhyamitra.com/city/thane/2001-01-13","hi":"https://hi.vidhyamitra.com/city/thane/2001-01-13","x-default":"https://vidhyamitra.com/city/thane/2001-01-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T11:02:58.557Z","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":"2026-05-16T11:02:58.557Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T11:02:58.557Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}