{"id":"vidhyamitra:city-day:lucknow:1990-04-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/lucknow/1990-04-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-04-06","date_display":"April 6, 1990 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":1990,"month":4,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447987.770833,"kali_year":5091,"ahargana":1859522.2708,"sun":{"sidereal_longitude":352.4457,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":124.7773,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":132.3316,"elapsed_within_tithi_degrees":0.3316},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":124.7773,"elapsed_within_degrees":4.7773},"yoga":{"number":9,"name":"Śūla","sum_longitude":117.223},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1990,"month":4,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447987.770833,"ahargana":1859522.2708,"kali_year":5091,"ayanamsa_lahiri":23.7169,"grahas":{"sun":{"sidereal_longitude":352.266523,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":125.87692300000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false,"latitude":-0.8744},"mars":{"sidereal_longitude":295.282323,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":9.325522999999976,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":69.72232300000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":306.06572300000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":270.7137230000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":293.5614,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":113.5614,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":1990,"month":4,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447987.770833,"kali_year":5091,"ahargana":1859522.2708,"sun":{"sidereal_longitude":352.4457,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":124.7773,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":132.3316,"elapsed_within_tithi_degrees":0.3316},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":124.7773,"elapsed_within_degrees":4.7773},"yoga":{"number":9,"name":"Śūla","sum_longitude":117.223},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.874,"elongation":132.332},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.874,"opposition_distance":47.668}},"eclipse_window_40days":[]},"city":{"slug":"lucknow","name":"Lucknow, Uttar Pradesh","lat":26.8467,"lon":80.9462,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"lucknow","name":"Lucknow, Uttar Pradesh","lat":26.8467,"lon":80.9462,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"sunriseLocal":"05:52","sunsetLocal":"18:26","solarNoonLocal":"12:09","dayLengthHours":12.551761751426556,"dayLengthDisplay":"12 Hours 33 Mins 06 Secs","nightLengthDisplay":"11 Hours 26 Mins 54 Secs","moonriseLocal":"14:37","moonsetLocal":"03:30","rahuKala":{"name":"Rāhu Kāla","start":"10:35","end":"12:09","startHours":10.581113602722397,"endHours":12.150083821650718,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:17","end":"16:51","startHours":15.288024259507356,"endHours":16.856994478435674,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:27","end":"09:01","startHours":7.443173164865758,"endHours":9.012143383794077,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:48","end":"09:13","startHours":8.802947354603635,"endHours":9.22133941298452,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:24","end":"06:44","startHours":6.397193018913545,"endHours":6.731906665618253,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:34","startHours":11.731691763269833,"endHours":12.568475880031603,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:12","end":"05:02","startHours":4.2006347124138985,"endHours":5.037418829175668,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:50","end":"05:52","startHours":4.828222799985226,"endHours":5.874202945937439,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:15","end":"15:05","startHours":14.242044113555142,"endHours":15.078828230316912,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:14","end":"18:38","startHours":18.225964697363995,"endHours":18.625964697363994,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:26","end":"18:57","startHours":18.425964697363995,"endHours":18.9489547703401,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:11","end":"19:56","startHours":18.175964697363995,"endHours":19.925964697363995,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:34","startHours":23.731691763269833,"endHours":24.568475880031603,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:52","end":"07:27","startHours":5.874202945937439,"endHours":7.443173164865758,"quality":"neutral"},{"name":"Labha","start":"07:27","end":"09:01","startHours":7.443173164865758,"endHours":9.012143383794077,"quality":"auspicious"},{"name":"Amṛta","start":"09:01","end":"10:35","startHours":9.012143383794077,"endHours":10.581113602722397,"quality":"auspicious"},{"name":"Kāla","start":"10:35","end":"12:09","startHours":10.581113602722397,"endHours":12.150083821650718,"quality":"inauspicious"},{"name":"Śubha","start":"12:09","end":"13:43","startHours":12.150083821650718,"endHours":13.719054040579035,"quality":"auspicious"},{"name":"Roga","start":"13:43","end":"15:17","startHours":13.719054040579035,"endHours":15.288024259507356,"quality":"inauspicious"},{"name":"Udveg","start":"15:17","end":"16:51","startHours":15.288024259507356,"endHours":16.856994478435674,"quality":"inauspicious"},{"name":"Chala","start":"16:51","end":"18:26","startHours":16.856994478435674,"endHours":18.425964697363995,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:26","end":"19:51","startHours":18.425964697363995,"endHours":19.856994478435674,"quality":"inauspicious"},{"name":"Udveg","start":"19:51","end":"21:17","startHours":19.856994478435674,"endHours":21.288024259507356,"quality":"inauspicious"},{"name":"Chala","start":"21:17","end":"22:43","startHours":21.288024259507356,"endHours":22.719054040579035,"quality":"neutral"},{"name":"Labha","start":"22:43","end":"00:09","startHours":22.719054040579035,"endHours":24.150083821650718,"quality":"auspicious"},{"name":"Amṛta","start":"00:09","end":"01:35","startHours":24.150083821650718,"endHours":25.581113602722397,"quality":"auspicious"},{"name":"Kāla","start":"01:35","end":"03:01","startHours":25.581113602722397,"endHours":27.012143383794076,"quality":"inauspicious"},{"name":"Śubha","start":"03:01","end":"04:27","startHours":27.012143383794076,"endHours":28.443173164865758,"quality":"auspicious"},{"name":"Roga","start":"04:27","end":"05:52","startHours":28.443173164865758,"endHours":29.87420294593744,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:52","end":"06:52","startHours":5.874202945937439,"endHours":6.874202945937439,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:52","end":"07:52","startHours":6.874202945937439,"endHours":7.874202945937439,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:52","end":"08:52","startHours":7.874202945937439,"endHours":8.874202945937439,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:52","end":"09:52","startHours":8.874202945937439,"endHours":9.874202945937439,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:52","end":"10:52","startHours":9.874202945937439,"endHours":10.874202945937439,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:52","end":"11:52","startHours":10.874202945937439,"endHours":11.874202945937439,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:52","end":"12:52","startHours":11.874202945937439,"endHours":12.874202945937439,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:52","end":"13:52","startHours":12.874202945937439,"endHours":13.874202945937439,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:52","end":"14:52","startHours":13.874202945937439,"endHours":14.874202945937439,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:52","end":"15:52","startHours":14.874202945937439,"endHours":15.874202945937439,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:52","end":"16:52","startHours":15.874202945937439,"endHours":16.87420294593744,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:52","end":"17:52","startHours":16.87420294593744,"endHours":17.87420294593744,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:52","end":"18:52","startHours":17.87420294593744,"endHours":18.87420294593744,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:52","end":"19:52","startHours":18.87420294593744,"endHours":19.87420294593744,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:52","end":"20:52","startHours":19.87420294593744,"endHours":20.87420294593744,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:52","end":"21:52","startHours":20.87420294593744,"endHours":21.87420294593744,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:52","end":"22:52","startHours":21.87420294593744,"endHours":22.87420294593744,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:52","end":"23:52","startHours":22.87420294593744,"endHours":23.87420294593744,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:52","end":"00:52","startHours":23.87420294593744,"endHours":24.87420294593744,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:52","end":"01:52","startHours":24.87420294593744,"endHours":25.87420294593744,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:52","end":"02:52","startHours":25.87420294593744,"endHours":26.87420294593744,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:52","end":"03:52","startHours":26.87420294593744,"endHours":27.87420294593744,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:52","end":"04:52","startHours":27.87420294593744,"endHours":28.87420294593744,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:52","end":"05:52","startHours":28.87420294593744,"endHours":29.87420294593744,"planetary_lord":"Mars"}],"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":"West (Paścim)","chandraVasa":"West","rahuVasa":"South-East","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":6.2876062924193405,"eotMinutes":-2.7898292990430456,"ayanamsa":23.7169}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"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 Dvādaśī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"lucknow"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 6, 1990 CE · Lucknow, Uttar Pradesh · Vidhyamitra","description":"April 6, 1990 CE for Lucknow, Uttar Pradesh: Śukla Dvādaśī, sūryodaya 05:52, sūryāsta 18:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/lucknow/1990-04-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/lucknow/1990-04-06","sa":"https://sa.vidhyamitra.com/city/lucknow/1990-04-06","hi":"https://hi.vidhyamitra.com/city/lucknow/1990-04-06","x-default":"https://vidhyamitra.com/city/lucknow/1990-04-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T13:21:32.533Z","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":"2026-06-02T13:21:32.533Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T13:21:32.533Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}