{"id":"vidhyamitra:city-day:ujjain:1981-04-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ujjain/1981-04-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-04-08","date_display":"April 8, 1981 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":1981,"month":4,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444702.770833,"kali_year":5082,"ahargana":1856237.2708,"sun":{"sidereal_longitude":354.7301,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":36.8446,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":42.1144,"elapsed_within_tithi_degrees":6.1144},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":36.8446,"elapsed_within_degrees":10.1779},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":31.5747},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"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":1981,"month":4,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444702.770833,"ahargana":1856237.2708,"kali_year":5082,"ayanamsa_lahiri":23.5913,"grahas":{"sun":{"sidereal_longitude":354.536134,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":39.68723399999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false,"latitude":-4.2485},"mars":{"sidereal_longitude":353.587334,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":336.02393400000005,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":160.38073400000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":true},"venus":{"sidereal_longitude":354.987934,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":161.71453399999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":107.6166,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":287.6166,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1981,"month":4,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444702.770833,"kali_year":5082,"ahargana":1856237.2708,"sun":{"sidereal_longitude":354.7301,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":36.8446,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":42.1144,"elapsed_within_tithi_degrees":6.1144},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":36.8446,"elapsed_within_degrees":10.1779},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":31.5747},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.248,"elongation":42.114},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.248,"opposition_distance":137.886}},"eclipse_window_40days":[]},"city":{"slug":"ujjain","name":"Ujjain","lat":23.1765,"lon":75.7885,"tz_offset_hours":5.5,"state":"Madhya Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"ujjain","name":"Ujjain","lat":23.1765,"lon":75.7885,"tz_offset_hours":5.5,"state":"Madhya Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:13","sunsetLocal":"18:45","solarNoonLocal":"12:29","dayLengthHours":12.53003068245639,"dayLengthDisplay":"12 Hours 31 Mins 48 Secs","nightLengthDisplay":"11 Hours 28 Mins 12 Secs","moonriseLocal":"08:49","moonsetLocal":"22:10","rahuKala":{"name":"Rāhu Kāla","start":"12:29","end":"14:03","startHours":12.483934176277831,"endHours":14.050188011584881,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:47","end":"09:21","startHours":7.785172670356686,"endHours":9.351426505663735,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:55","end":"12:29","startHours":10.917680340970783,"endHours":12.483934176277831,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:09","end":"09:34","startHours":9.142592660956128,"endHours":9.56026035037134,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:44","end":"07:05","startHours":6.741003446818653,"endHours":7.075137598350824,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:54","startHours":12.06626648686262,"endHours":12.901601865693046,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:33","end":"05:23","startHours":4.548248077388785,"endHours":5.383583456219211,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:10","end":"06:13","startHours":5.174749611511604,"endHours":6.218918835049637,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:34","end":"15:24","startHours":14.572272623353896,"endHours":15.407608002184322,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:33","end":"18:57","startHours":18.548949517506028,"endHours":18.948949517506026,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:45","end":"19:16","startHours":18.748949517506027,"endHours":19.271034129275044,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:30","end":"20:15","startHours":18.498949517506027,"endHours":20.248949517506027,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:54","startHours":24.06626648686262,"endHours":24.90160186569305,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:13","end":"07:47","startHours":6.218918835049637,"endHours":7.785172670356686,"quality":"auspicious"},{"name":"Amṛta","start":"07:47","end":"09:21","startHours":7.785172670356686,"endHours":9.351426505663735,"quality":"auspicious"},{"name":"Kāla","start":"09:21","end":"10:55","startHours":9.351426505663735,"endHours":10.917680340970783,"quality":"inauspicious"},{"name":"Śubha","start":"10:55","end":"12:29","startHours":10.917680340970783,"endHours":12.483934176277831,"quality":"auspicious"},{"name":"Roga","start":"12:29","end":"14:03","startHours":12.483934176277831,"endHours":14.050188011584881,"quality":"inauspicious"},{"name":"Udveg","start":"14:03","end":"15:37","startHours":14.050188011584881,"endHours":15.616441846891929,"quality":"inauspicious"},{"name":"Chala","start":"15:37","end":"17:11","startHours":15.616441846891929,"endHours":17.18269568219898,"quality":"neutral"},{"name":"Labha","start":"17:11","end":"18:45","startHours":17.18269568219898,"endHours":18.748949517506027,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:45","end":"20:11","startHours":18.748949517506027,"endHours":20.18269568219898,"quality":"inauspicious"},{"name":"Chala","start":"20:11","end":"21:37","startHours":20.18269568219898,"endHours":21.61644184689193,"quality":"neutral"},{"name":"Labha","start":"21:37","end":"23:03","startHours":21.61644184689193,"endHours":23.05018801158488,"quality":"auspicious"},{"name":"Amṛta","start":"23:03","end":"00:29","startHours":23.05018801158488,"endHours":24.48393417627783,"quality":"auspicious"},{"name":"Kāla","start":"00:29","end":"01:55","startHours":24.48393417627783,"endHours":25.917680340970783,"quality":"inauspicious"},{"name":"Śubha","start":"01:55","end":"03:21","startHours":25.917680340970783,"endHours":27.351426505663735,"quality":"auspicious"},{"name":"Roga","start":"03:21","end":"04:47","startHours":27.351426505663735,"endHours":28.785172670356687,"quality":"inauspicious"},{"name":"Udveg","start":"04:47","end":"06:13","startHours":28.785172670356687,"endHours":30.218918835049635,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:13","end":"07:13","startHours":6.218918835049637,"endHours":7.218918835049637,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:13","end":"08:13","startHours":7.218918835049637,"endHours":8.218918835049637,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:13","end":"09:13","startHours":8.218918835049637,"endHours":9.218918835049637,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:13","end":"10:13","startHours":9.218918835049637,"endHours":10.218918835049637,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:13","end":"11:13","startHours":10.218918835049637,"endHours":11.218918835049637,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:13","end":"12:13","startHours":11.218918835049637,"endHours":12.218918835049637,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:13","end":"13:13","startHours":12.218918835049637,"endHours":13.218918835049637,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:13","end":"14:13","startHours":13.218918835049637,"endHours":14.218918835049637,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:13","end":"15:13","startHours":14.218918835049637,"endHours":15.218918835049637,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:13","end":"16:13","startHours":15.218918835049637,"endHours":16.218918835049635,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:13","end":"17:13","startHours":16.218918835049635,"endHours":17.218918835049635,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:13","end":"18:13","startHours":17.218918835049635,"endHours":18.218918835049635,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:13","end":"19:13","startHours":18.218918835049635,"endHours":19.218918835049635,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:13","end":"20:13","startHours":19.218918835049635,"endHours":20.218918835049635,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:13","end":"21:13","startHours":20.218918835049635,"endHours":21.218918835049635,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:13","end":"22:13","startHours":21.218918835049635,"endHours":22.218918835049635,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:13","end":"23:13","startHours":22.218918835049635,"endHours":23.218918835049635,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:13","end":"00:13","startHours":23.218918835049635,"endHours":24.218918835049635,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:13","end":"01:13","startHours":24.218918835049635,"endHours":25.218918835049635,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:13","end":"02:13","startHours":25.218918835049635,"endHours":26.218918835049635,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:13","end":"03:13","startHours":26.218918835049635,"endHours":27.218918835049635,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:13","end":"04:13","startHours":27.218918835049635,"endHours":28.218918835049635,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:13","end":"05:13","startHours":28.218918835049635,"endHours":29.218918835049635,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:13","end":"06:13","startHours":29.218918835049635,"endHours":30.218918835049635,"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":7.108408308253046,"eotMinutes":-2.1900505766699547,"ayanamsa":23.5913}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Caturthī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"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":"ujjain"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 8, 1981 CE · Ujjain · Vidhyamitra","description":"April 8, 1981 CE for Ujjain: Śukla Caturthī, sūryodaya 06:13, sūryāsta 18:45.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ujjain/1981-04-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ujjain/1981-04-08","sa":"https://sa.vidhyamitra.com/city/ujjain/1981-04-08","hi":"https://hi.vidhyamitra.com/city/ujjain/1981-04-08","x-default":"https://vidhyamitra.com/city/ujjain/1981-04-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T20:26:44.915Z","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":"2026-06-02T20:26:44.915Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T20:26:44.915Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}