{"id":"vidhyamitra:city-day:mathura:1979-04-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mathura/1979-04-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1979-04-01","date_display":"April 1, 1979 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":1979,"month":4,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443964.770833,"kali_year":5080,"ahargana":1855499.2708,"sun":{"sidereal_longitude":347.3769,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":37.803,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":50.4261,"elapsed_within_tithi_degrees":2.4261},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":37.803,"elapsed_within_degrees":11.1363},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.1798},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1979,"month":4,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2443964.770833,"ahargana":1855499.2708,"kali_year":5080,"ayanamsa_lahiri":23.5631,"grahas":{"sun":{"sidereal_longitude":347.161531,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":38.02273100000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false,"latitude":-4.2565},"mars":{"sidereal_longitude":332.02023099999997,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":334.346131,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":95.20653100000004,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"venus":{"sidereal_longitude":310.22643100000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":134.63253099999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":146.7193,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":326.7193,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1979,"month":4,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443964.770833,"kali_year":5080,"ahargana":1855499.2708,"sun":{"sidereal_longitude":347.3769,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":37.803,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":50.4261,"elapsed_within_tithi_degrees":2.4261},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":37.803,"elapsed_within_degrees":11.1363},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.1798},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.257,"elongation":50.426},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.257,"opposition_distance":129.574}},"eclipse_window_40days":[{"offset_days":-18,"type":"lunar","occurs":true,"moon_latitude":0.313,"opposition_distance":2.135},{"offset_days":-4,"type":"solar","occurs":true,"moon_latitude":-1.291,"elongation":0.19}]},"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":"06:11","sunsetLocal":"18:36","solarNoonLocal":"12:24","dayLengthHours":12.420812932580736,"dayLengthDisplay":"12 Hours 25 Mins 15 Secs","nightLengthDisplay":"11 Hours 34 Mins 45 Secs","moonriseLocal":"08:59","moonsetLocal":"22:35","rahuKala":{"name":"Rāhu Kāla","start":"17:03","end":"18:36","startHours":17.0519631180703,"endHours":18.604564734642892,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:24","end":"13:57","startHours":12.394158268352523,"endHours":13.946759884925116,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:30","end":"17:03","startHours":15.499361501497708,"endHours":17.0519631180703,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:05","end":"09:30","startHours":9.081941486330994,"endHours":9.495968584083686,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:42","end":"07:02","startHours":6.70128567425302,"endHours":7.032507352455173,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:59","end":"12:48","startHours":11.980131170599833,"endHours":12.808185366105214,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:32","end":"05:21","startHours":4.5276434110513915,"endHours":5.355697606556774,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:09","end":"06:11","startHours":5.148684057680429,"endHours":6.183751802062156,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:28","end":"15:18","startHours":14.46429375711598,"endHours":15.292347952621363,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:24","end":"18:48","startHours":18.404564734642893,"endHours":18.80456473464289,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:36","end":"19:07","startHours":18.604564734642892,"endHours":19.122098606833756,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:21","end":"20:06","startHours":18.354564734642892,"endHours":20.104564734642892,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:59","end":"00:48","startHours":23.980131170599833,"endHours":24.808185366105214,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:11","end":"07:44","startHours":6.183751802062156,"endHours":7.7363534186347485,"quality":"inauspicious"},{"name":"Chala","start":"07:44","end":"09:17","startHours":7.7363534186347485,"endHours":9.28895503520734,"quality":"neutral"},{"name":"Labha","start":"09:17","end":"10:50","startHours":9.28895503520734,"endHours":10.841556651779932,"quality":"auspicious"},{"name":"Amṛta","start":"10:50","end":"12:24","startHours":10.841556651779932,"endHours":12.394158268352523,"quality":"auspicious"},{"name":"Kāla","start":"12:24","end":"13:57","startHours":12.394158268352523,"endHours":13.946759884925116,"quality":"inauspicious"},{"name":"Śubha","start":"13:57","end":"15:30","startHours":13.946759884925116,"endHours":15.499361501497708,"quality":"auspicious"},{"name":"Roga","start":"15:30","end":"17:03","startHours":15.499361501497708,"endHours":17.0519631180703,"quality":"inauspicious"},{"name":"Udveg","start":"17:03","end":"18:36","startHours":17.0519631180703,"endHours":18.604564734642892,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:36","end":"20:03","startHours":18.604564734642892,"endHours":20.0519631180703,"quality":"auspicious"},{"name":"Roga","start":"20:03","end":"21:30","startHours":20.0519631180703,"endHours":21.49936150149771,"quality":"inauspicious"},{"name":"Udveg","start":"21:30","end":"22:57","startHours":21.49936150149771,"endHours":22.946759884925115,"quality":"inauspicious"},{"name":"Chala","start":"22:57","end":"00:24","startHours":22.946759884925115,"endHours":24.394158268352523,"quality":"neutral"},{"name":"Labha","start":"00:24","end":"01:50","startHours":24.394158268352523,"endHours":25.841556651779932,"quality":"auspicious"},{"name":"Amṛta","start":"01:50","end":"03:17","startHours":25.841556651779932,"endHours":27.28895503520734,"quality":"auspicious"},{"name":"Kāla","start":"03:17","end":"04:44","startHours":27.28895503520734,"endHours":28.73635341863475,"quality":"inauspicious"},{"name":"Śubha","start":"04:44","end":"06:11","startHours":28.73635341863475,"endHours":30.183751802062154,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:11","end":"07:11","startHours":6.183751802062156,"endHours":7.183751802062156,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:11","end":"08:11","startHours":7.183751802062156,"endHours":8.183751802062156,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:11","end":"09:11","startHours":8.183751802062156,"endHours":9.183751802062156,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:11","end":"10:11","startHours":9.183751802062156,"endHours":10.183751802062156,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:11","end":"11:11","startHours":10.183751802062156,"endHours":11.183751802062156,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:11","end":"12:11","startHours":11.183751802062156,"endHours":12.183751802062156,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:11","end":"13:11","startHours":12.183751802062156,"endHours":13.183751802062156,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:11","end":"14:11","startHours":13.183751802062156,"endHours":14.183751802062156,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:11","end":"15:11","startHours":14.183751802062156,"endHours":15.183751802062156,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:11","end":"16:11","startHours":15.183751802062156,"endHours":16.183751802062154,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:11","end":"17:11","startHours":16.183751802062154,"endHours":17.183751802062154,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:11","end":"18:11","startHours":17.183751802062154,"endHours":18.183751802062154,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:11","end":"19:11","startHours":18.183751802062154,"endHours":19.183751802062154,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:11","end":"20:11","startHours":19.183751802062154,"endHours":20.183751802062154,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:11","end":"21:11","startHours":20.183751802062154,"endHours":21.183751802062154,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:11","end":"22:11","startHours":21.183751802062154,"endHours":22.183751802062154,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:11","end":"23:11","startHours":22.183751802062154,"endHours":23.183751802062154,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:11","end":"00:11","startHours":23.183751802062154,"endHours":24.183751802062154,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:11","end":"01:11","startHours":24.183751802062154,"endHours":25.183751802062154,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:11","end":"02:11","startHours":25.183751802062154,"endHours":26.183751802062154,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:11","end":"03:11","startHours":26.183751802062154,"endHours":27.183751802062154,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:11","end":"04:11","startHours":27.183751802062154,"endHours":28.183751802062154,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:11","end":"05:11","startHours":28.183751802062154,"endHours":29.183751802062154,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:11","end":"06:11","startHours":29.183751802062154,"endHours":30.183751802062154,"planetary_lord":"Jupiter"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":4.244550643962675,"eotMinutes":-4.344296101151456,"ayanamsa":23.5631}},"calendars":{"vikram_samvat":2036,"vikram_samvatsara":"Aṅgirasa","saka_samvat":1901,"saka_samvatsara":"Siddhārthī","bengali_samvat":1386,"malayalam_era":1155,"nanakshahi_year":510,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Pañcamī · Vikram 2036 Aṅgirasa · Śaka 1901 Siddhārthī"},"festivals":[{"id":"ramanuja-jayanti","name":"Rāmānujācārya Jayantī","name_sanskrit":"रामानुजाचार्य जयन्ती","tradition":"Vaishnava","associated_deity":"Rāmānujācārya (Viśiṣṭādvaita)","significance":"Birth of Rāmānujācārya; Viśiṣṭādvaita-pratiṣṭhāpaka. Caitra Śukla 5.","vrata":false,"detection":{"tithi_number":5,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":3},{"id":"mina-sankranti","name":"Mīna Saṅkrānti","name_sanskrit":"मीन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Pisces; Mīna-māsa begins.","vrata":false,"detection":{"sun_rashi":"Mīna"},"precedence":5}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 April 1, 1979 CE · Mathurā · Vidhyamitra","description":"April 1, 1979 CE for Mathurā: Śukla Pañcamī, sūryodaya 06:11, sūryāsta 18:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mathura/1979-04-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mathura/1979-04-01","sa":"https://sa.vidhyamitra.com/city/mathura/1979-04-01","hi":"https://hi.vidhyamitra.com/city/mathura/1979-04-01","x-default":"https://vidhyamitra.com/city/mathura/1979-04-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T15:44:53.318Z","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":"2026-05-14T15:44:53.318Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T15:44:53.318Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}