{"id":"vidhyamitra:city-day:mathura:1937-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mathura/1937-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1937-02-01","date_display":"February 1, 1937 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":1937,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2428565.770833,"kali_year":5038,"ahargana":1840100.2708,"sun":{"sidereal_longitude":288.9664,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":173.158,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":244.1916,"elapsed_within_tithi_degrees":4.1916},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":173.158,"elapsed_within_degrees":13.158},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":102.1244},"karana":{"half_tithi_index":40,"name":"Gara"},"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":1937,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2428565.770833,"ahargana":1840100.2708,"kali_year":5038,"ayanamsa_lahiri":22.9741,"grahas":{"sun":{"sidereal_longitude":288.79798600000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":172.03338600000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false,"latitude":-4.2138},"mars":{"sidereal_longitude":201.41028600000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":265.1172859999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":261.630086,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":336.4578859999999,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":327.64708599999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":242.6325,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":62.6325,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"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":1937,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2428565.770833,"kali_year":5038,"ahargana":1840100.2708,"sun":{"sidereal_longitude":288.9664,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":173.158,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":244.1916,"elapsed_within_tithi_degrees":4.1916},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":173.158,"elapsed_within_degrees":13.158},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":102.1244},"karana":{"half_tithi_index":40,"name":"Gara"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.214,"elongation":115.808},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.214,"opposition_distance":64.192}},"eclipse_window_40days":[]},"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"07:06","sunsetLocal":"18:00","solarNoonLocal":"12:33","dayLengthHours":10.892384418176718,"dayLengthDisplay":"10 Hours 53 Mins 33 Secs","nightLengthDisplay":"13 Hours 06 Mins 27 Secs","moonriseLocal":"22:56","moonsetLocal":"10:36","rahuKala":{"name":"Rāhu Kāla","start":"08:28","end":"09:50","startHours":8.465264978473655,"endHours":9.826813030745747,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:11","end":"12:33","startHours":11.188361083017835,"endHours":12.549909135289926,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:55","end":"15:16","startHours":13.911457187562014,"endHours":15.273005239834106,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:39","end":"10:01","startHours":9.645273290442802,"endHours":10.008352771048692,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:33","end":"07:51","startHours":7.55756627695893,"endHours":7.848029861443642,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:11","end":"12:55","startHours":12.186829654684036,"endHours":12.912988615895816,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:39","end":"06:23","startHours":5.651399003778004,"endHours":6.377557964989785,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:12","end":"07:06","startHours":6.19601822468684,"endHours":7.1037169262015665,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:05","startHours":14.365306538319379,"endHours":15.09146549953116,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:48","end":"18:12","startHours":17.796101344378286,"endHours":18.196101344378285,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:00","end":"18:27","startHours":17.996101344378285,"endHours":18.449950695135648,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:45","end":"19:30","startHours":17.746101344378285,"endHours":19.496101344378285,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:11","end":"00:55","startHours":24.186829654684036,"endHours":24.912988615895816,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:06","end":"08:28","startHours":7.1037169262015665,"endHours":8.465264978473655,"quality":"auspicious"},{"name":"Kāla","start":"08:28","end":"09:50","startHours":8.465264978473655,"endHours":9.826813030745747,"quality":"inauspicious"},{"name":"Śubha","start":"09:50","end":"11:11","startHours":9.826813030745747,"endHours":11.188361083017835,"quality":"auspicious"},{"name":"Roga","start":"11:11","end":"12:33","startHours":11.188361083017835,"endHours":12.549909135289926,"quality":"inauspicious"},{"name":"Udveg","start":"12:33","end":"13:55","startHours":12.549909135289926,"endHours":13.911457187562014,"quality":"inauspicious"},{"name":"Chala","start":"13:55","end":"15:16","startHours":13.911457187562014,"endHours":15.273005239834106,"quality":"neutral"},{"name":"Labha","start":"15:16","end":"16:38","startHours":15.273005239834106,"endHours":16.634553292106194,"quality":"auspicious"},{"name":"Amṛta","start":"16:38","end":"18:00","startHours":16.634553292106194,"endHours":17.996101344378285,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:00","end":"19:38","startHours":17.996101344378285,"endHours":19.634553292106197,"quality":"neutral"},{"name":"Labha","start":"19:38","end":"21:16","startHours":19.634553292106197,"endHours":21.273005239834106,"quality":"auspicious"},{"name":"Amṛta","start":"21:16","end":"22:55","startHours":21.273005239834106,"endHours":22.911457187562014,"quality":"auspicious"},{"name":"Kāla","start":"22:55","end":"00:33","startHours":22.911457187562014,"endHours":24.549909135289926,"quality":"inauspicious"},{"name":"Śubha","start":"00:33","end":"02:11","startHours":24.549909135289926,"endHours":26.18836108301784,"quality":"auspicious"},{"name":"Roga","start":"02:11","end":"03:50","startHours":26.18836108301784,"endHours":27.826813030745747,"quality":"inauspicious"},{"name":"Udveg","start":"03:50","end":"05:28","startHours":27.826813030745747,"endHours":29.465264978473655,"quality":"inauspicious"},{"name":"Chala","start":"05:28","end":"07:06","startHours":29.465264978473655,"endHours":31.103716926201567,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:06","end":"08:06","startHours":7.1037169262015665,"endHours":8.103716926201567,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:06","end":"09:06","startHours":8.103716926201567,"endHours":9.103716926201567,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:06","end":"10:06","startHours":9.103716926201567,"endHours":10.103716926201567,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:06","end":"11:06","startHours":10.103716926201567,"endHours":11.103716926201567,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:06","end":"12:06","startHours":11.103716926201567,"endHours":12.103716926201567,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:06","end":"13:06","startHours":12.103716926201567,"endHours":13.103716926201567,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:06","end":"14:06","startHours":13.103716926201567,"endHours":14.103716926201567,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:06","end":"15:06","startHours":14.103716926201567,"endHours":15.103716926201567,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:06","end":"16:06","startHours":15.103716926201567,"endHours":16.103716926201567,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:06","end":"17:06","startHours":16.103716926201567,"endHours":17.103716926201567,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:06","end":"18:06","startHours":17.103716926201567,"endHours":18.103716926201567,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:06","end":"19:06","startHours":18.103716926201567,"endHours":19.103716926201567,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:06","end":"20:06","startHours":19.103716926201567,"endHours":20.103716926201567,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:06","end":"21:06","startHours":20.103716926201567,"endHours":21.103716926201567,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:06","end":"22:06","startHours":21.103716926201567,"endHours":22.103716926201567,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:06","end":"23:06","startHours":22.103716926201567,"endHours":23.103716926201567,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:06","end":"00:06","startHours":23.103716926201567,"endHours":24.103716926201567,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:06","end":"01:06","startHours":24.103716926201567,"endHours":25.103716926201567,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:06","end":"02:06","startHours":25.103716926201567,"endHours":26.103716926201567,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:06","end":"03:06","startHours":26.103716926201567,"endHours":27.103716926201567,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:06","end":"04:06","startHours":27.103716926201567,"endHours":28.103716926201567,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:06","end":"05:06","startHours":28.103716926201567,"endHours":29.103716926201567,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:06","end":"06:06","startHours":29.103716926201567,"endHours":30.103716926201567,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:06","end":"07:06","startHours":30.103716926201567,"endHours":31.103716926201567,"planetary_lord":"Venus"}],"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","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Mṛtyu","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-17.255252523825312,"eotMinutes":-13.689348117395623,"ayanamsa":22.9741}},"calendars":{"vikram_samvat":1994,"vikram_samvatsara":"Vikṛti","saka_samvat":1859,"saka_samvatsara":"Īśvara","bengali_samvat":1344,"malayalam_era":1113,"nanakshahi_year":468,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Ṣaṣṭhī · Vikram 1994 Vikṛti · Śaka 1859 Īśvara"},"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}],"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":"mathura"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 1, 1937 CE · Mathurā · Vidhyamitra","description":"February 1, 1937 CE for Mathurā: Kṛṣṇa Ṣaṣṭhī, sūryodaya 07:06, sūryāsta 18:00.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mathura/1937-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mathura/1937-02-01","sa":"https://sa.vidhyamitra.com/city/mathura/1937-02-01","hi":"https://hi.vidhyamitra.com/city/mathura/1937-02-01","x-default":"https://vidhyamitra.com/city/mathura/1937-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T15:54:50.174Z","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":"2026-05-14T15:54:50.174Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T15:54:50.174Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}