{"id":"vidhyamitra:city-day:mathura:1971-12-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mathura/1971-12-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1971-12-01","date_display":"December 1, 1971 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":1971,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441286.770833,"kali_year":5073,"ahargana":1852821.2708,"sun":{"sidereal_longitude":224.282,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":28.3732,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":164.0911,"elapsed_within_tithi_degrees":8.0911},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1,"moon_longitude":28.3732,"elapsed_within_degrees":1.7065},"yoga":{"number":19,"name":"Parigha","sum_longitude":252.6552},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"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":1971,"month":12,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441286.770833,"ahargana":1852821.2708,"kali_year":5073,"ayanamsa_lahiri":23.4607,"grahas":{"sun":{"sidereal_longitude":224.71794999999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":26.88884999999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false,"latitude":4.4347},"mars":{"sidereal_longitude":320.8658499999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":245.05115,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":232.65975000000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":249.34114999999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":39.52774999999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":288.6127,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":108.6127,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":1971,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441286.770833,"kali_year":5073,"ahargana":1852821.2708,"sun":{"sidereal_longitude":224.282,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":28.3732,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":164.0911,"elapsed_within_tithi_degrees":8.0911},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1,"moon_longitude":28.3732,"elapsed_within_degrees":1.7065},"yoga":{"number":19,"name":"Parigha","sum_longitude":252.6552},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.435,"elongation":164.091},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.435,"opposition_distance":15.909}},"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":"06:53","sunsetLocal":"17:26","solarNoonLocal":"12:09","dayLengthHours":10.54644385812268,"dayLengthDisplay":"10 Hours 32 Mins 47 Secs","nightLengthDisplay":"13 Hours 27 Mins 13 Secs","moonriseLocal":"16:17","moonsetLocal":"05:39","rahuKala":{"name":"Rāhu Kāla","start":"12:09","end":"13:28","startHours":12.152902489993327,"endHours":13.47120797225866,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:12","end":"09:31","startHours":8.197986043197321,"endHours":9.516291525462655,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:50","end":"12:09","startHours":10.834597007727991,"endHours":12.152902489993327,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:20","end":"09:42","startHours":9.340517461160612,"endHours":9.6920655897647,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:19","end":"07:36","startHours":7.319115721687098,"endHours":7.600354224570369,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:48","end":"12:30","startHours":11.801354361389237,"endHours":12.504450618597417,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:28","end":"06:11","startHours":5.473488046515628,"endHours":6.176584303723807,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:00","end":"06:53","startHours":6.000810239421762,"endHours":6.879680560931986,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:55","end":"14:37","startHours":13.910643133013773,"endHours":14.613739390221951,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:14","end":"17:38","startHours":17.226124419054667,"endHours":17.626124419054666,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:26","end":"17:52","startHours":17.426124419054666,"endHours":17.865559579809776,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:11","end":"18:56","startHours":17.176124419054666,"endHours":18.926124419054666,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:48","end":"00:30","startHours":23.801354361389237,"endHours":24.504450618597417,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:53","end":"08:12","startHours":6.879680560931986,"endHours":8.197986043197321,"quality":"auspicious"},{"name":"Amṛta","start":"08:12","end":"09:31","startHours":8.197986043197321,"endHours":9.516291525462655,"quality":"auspicious"},{"name":"Kāla","start":"09:31","end":"10:50","startHours":9.516291525462655,"endHours":10.834597007727991,"quality":"inauspicious"},{"name":"Śubha","start":"10:50","end":"12:09","startHours":10.834597007727991,"endHours":12.152902489993327,"quality":"auspicious"},{"name":"Roga","start":"12:09","end":"13:28","startHours":12.152902489993327,"endHours":13.47120797225866,"quality":"inauspicious"},{"name":"Udveg","start":"13:28","end":"14:47","startHours":13.47120797225866,"endHours":14.789513454523997,"quality":"inauspicious"},{"name":"Chala","start":"14:47","end":"16:06","startHours":14.789513454523997,"endHours":16.10781893678933,"quality":"neutral"},{"name":"Labha","start":"16:06","end":"17:26","startHours":16.10781893678933,"endHours":17.426124419054666,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:26","end":"19:06","startHours":17.426124419054666,"endHours":19.107818936789332,"quality":"inauspicious"},{"name":"Chala","start":"19:06","end":"20:47","startHours":19.107818936789332,"endHours":20.789513454523995,"quality":"neutral"},{"name":"Labha","start":"20:47","end":"22:28","startHours":20.789513454523995,"endHours":22.47120797225866,"quality":"auspicious"},{"name":"Amṛta","start":"22:28","end":"00:09","startHours":22.47120797225866,"endHours":24.152902489993327,"quality":"auspicious"},{"name":"Kāla","start":"00:09","end":"01:50","startHours":24.152902489993327,"endHours":25.834597007727993,"quality":"inauspicious"},{"name":"Śubha","start":"01:50","end":"03:31","startHours":25.834597007727993,"endHours":27.516291525462655,"quality":"auspicious"},{"name":"Roga","start":"03:31","end":"05:12","startHours":27.516291525462655,"endHours":29.19798604319732,"quality":"inauspicious"},{"name":"Udveg","start":"05:12","end":"06:53","startHours":29.19798604319732,"endHours":30.879680560931988,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:53","end":"07:53","startHours":6.879680560931986,"endHours":7.879680560931986,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:53","end":"08:53","startHours":7.879680560931986,"endHours":8.879680560931986,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:53","end":"09:53","startHours":8.879680560931986,"endHours":9.879680560931986,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:53","end":"10:53","startHours":9.879680560931986,"endHours":10.879680560931986,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:53","end":"11:53","startHours":10.879680560931986,"endHours":11.879680560931986,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:53","end":"12:53","startHours":11.879680560931986,"endHours":12.879680560931986,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:53","end":"13:53","startHours":12.879680560931986,"endHours":13.879680560931986,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:53","end":"14:53","startHours":13.879680560931986,"endHours":14.879680560931986,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:53","end":"15:53","startHours":14.879680560931986,"endHours":15.879680560931986,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:53","end":"16:53","startHours":15.879680560931986,"endHours":16.879680560931988,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:53","end":"17:53","startHours":16.879680560931988,"endHours":17.879680560931988,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:53","end":"18:53","startHours":17.879680560931988,"endHours":18.879680560931988,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:53","end":"19:53","startHours":18.879680560931988,"endHours":19.879680560931988,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:53","end":"20:53","startHours":19.879680560931988,"endHours":20.879680560931988,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:53","end":"21:53","startHours":20.879680560931988,"endHours":21.879680560931988,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:53","end":"22:53","startHours":21.879680560931988,"endHours":22.879680560931988,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:53","end":"23:53","startHours":22.879680560931988,"endHours":23.879680560931988,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:53","end":"00:53","startHours":23.879680560931988,"endHours":24.879680560931988,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:53","end":"01:53","startHours":24.879680560931988,"endHours":25.879680560931988,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:53","end":"02:53","startHours":25.879680560931988,"endHours":26.879680560931988,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:53","end":"03:53","startHours":26.879680560931988,"endHours":27.879680560931988,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:53","end":"04:53","startHours":27.879680560931988,"endHours":28.879680560931988,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:53","end":"05:53","startHours":28.879680560931988,"endHours":29.879680560931988,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:53","end":"06:53","startHours":29.879680560931988,"endHours":30.879680560931988,"planetary_lord":"Sun"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"South-West","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-21.668376962353456,"eotMinutes":10.131050600400467,"ayanamsa":23.4607}},"calendars":{"vikram_samvat":2028,"vikram_samvatsara":"Raktākṣī","saka_samvat":1893,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1378,"malayalam_era":1147,"nanakshahi_year":502,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Caturdaśī · Vikram 2028 Raktākṣī · Śaka 1893 Virodhakṛt"},"festivals":[{"id":"vrischika-sankranti","name":"Vṛścika Saṅkrānti","name_sanskrit":"वृश्चिक सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Scorpio.","vrata":false,"detection":{"sun_rashi":"Vṛścika"},"precedence":5}],"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":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"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 December 1, 1971 CE · Mathurā · Vidhyamitra","description":"December 1, 1971 CE for Mathurā: Śukla Caturdaśī, sūryodaya 06:53, sūryāsta 17:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mathura/1971-12-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mathura/1971-12-01","sa":"https://sa.vidhyamitra.com/city/mathura/1971-12-01","hi":"https://hi.vidhyamitra.com/city/mathura/1971-12-01","x-default":"https://vidhyamitra.com/city/mathura/1971-12-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T21:46:05.432Z","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":"2026-05-14T21:46:05.432Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T21:46:05.432Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}