{"id":"vidhyamitra:city-day:ranchi:1990-01-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ranchi/1990-01-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-01-01","date_display":"January 1, 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":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447892.770833,"kali_year":5091,"ahargana":1859427.2708,"sun":{"sidereal_longitude":256.4306,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":303.9444,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.5138,"elapsed_within_tithi_degrees":11.5138},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":303.9444,"elapsed_within_degrees":10.6111},"yoga":{"number":16,"name":"Siddhi","sum_longitude":200.375},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"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":1990,"month":1,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447892.770833,"ahargana":1859427.2708,"kali_year":5091,"ayanamsa_lahiri":23.7133,"grahas":{"sun":{"sidereal_longitude":256.640852,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":303.341852,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false,"latitude":0.4191},"mars":{"sidereal_longitude":226.09655199999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":272.29185200000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":71.67155200000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":282.68225200000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":261.6595520000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":298.595,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":118.595,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4},"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":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447892.770833,"kali_year":5091,"ahargana":1859427.2708,"sun":{"sidereal_longitude":256.4306,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":303.9444,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.5138,"elapsed_within_tithi_degrees":11.5138},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":303.9444,"elapsed_within_degrees":10.6111},"yoga":{"number":16,"name":"Siddhi","sum_longitude":200.375},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.419,"elongation":47.514},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.419,"opposition_distance":132.486}},"eclipse_window_40days":[]},"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"sunriseLocal":"06:31","sunsetLocal":"17:14","solarNoonLocal":"11:52","dayLengthHours":10.723789391555911,"dayLengthDisplay":"10 Hours 43 Mins 26 Secs","nightLengthDisplay":"13 Hours 16 Mins 34 Secs","moonriseLocal":"09:19","moonsetLocal":"20:40","rahuKala":{"name":"Rāhu Kāla","start":"07:51","end":"09:12","startHours":7.853025283556469,"endHours":9.193498957500957,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:32","end":"11:52","startHours":10.533972631445447,"endHours":11.874446305389935,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:13","end":"14:33","startHours":13.214919979334425,"endHours":14.555393653278912,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:22","startHours":9.01476913430836,"endHours":9.372228780693556,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:58","end":"07:15","startHours":6.959376167593476,"endHours":7.245343884701634,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:31","end":"12:14","startHours":11.516986659004738,"endHours":12.231905951775131,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:05","end":"05:48","startHours":5.082713024071191,"endHours":5.797632316841586,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:37","end":"06:31","startHours":5.618902493648987,"endHours":6.51255160961198,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:40","end":"14:23","startHours":13.661744537315922,"endHours":14.376663830086317,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:02","end":"17:26","startHours":17.03634100116789,"endHours":17.43634100116789,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:14","end":"17:41","startHours":17.23634100116789,"endHours":17.683165559149387,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:59","end":"18:44","startHours":16.98634100116789,"endHours":18.73634100116789,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:31","end":"00:14","startHours":23.516986659004736,"endHours":24.231905951775133,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:31","end":"07:51","startHours":6.51255160961198,"endHours":7.853025283556469,"quality":"auspicious"},{"name":"Kāla","start":"07:51","end":"09:12","startHours":7.853025283556469,"endHours":9.193498957500957,"quality":"inauspicious"},{"name":"Śubha","start":"09:12","end":"10:32","startHours":9.193498957500957,"endHours":10.533972631445447,"quality":"auspicious"},{"name":"Roga","start":"10:32","end":"11:52","startHours":10.533972631445447,"endHours":11.874446305389935,"quality":"inauspicious"},{"name":"Udveg","start":"11:52","end":"13:13","startHours":11.874446305389935,"endHours":13.214919979334425,"quality":"inauspicious"},{"name":"Chala","start":"13:13","end":"14:33","startHours":13.214919979334425,"endHours":14.555393653278912,"quality":"neutral"},{"name":"Labha","start":"14:33","end":"15:54","startHours":14.555393653278912,"endHours":15.895867327223403,"quality":"auspicious"},{"name":"Amṛta","start":"15:54","end":"17:14","startHours":15.895867327223403,"endHours":17.23634100116789,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:14","end":"18:54","startHours":17.23634100116789,"endHours":18.8958673272234,"quality":"neutral"},{"name":"Labha","start":"18:54","end":"20:33","startHours":18.8958673272234,"endHours":20.555393653278912,"quality":"auspicious"},{"name":"Amṛta","start":"20:33","end":"22:13","startHours":20.555393653278912,"endHours":22.214919979334425,"quality":"auspicious"},{"name":"Kāla","start":"22:13","end":"23:52","startHours":22.214919979334425,"endHours":23.874446305389935,"quality":"inauspicious"},{"name":"Śubha","start":"23:52","end":"01:32","startHours":23.874446305389935,"endHours":25.533972631445444,"quality":"auspicious"},{"name":"Roga","start":"01:32","end":"03:12","startHours":25.533972631445444,"endHours":27.193498957500957,"quality":"inauspicious"},{"name":"Udveg","start":"03:12","end":"04:51","startHours":27.193498957500957,"endHours":28.85302528355647,"quality":"inauspicious"},{"name":"Chala","start":"04:51","end":"06:31","startHours":28.85302528355647,"endHours":30.51255160961198,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:31","end":"07:31","startHours":6.51255160961198,"endHours":7.51255160961198,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:31","end":"08:31","startHours":7.51255160961198,"endHours":8.512551609611979,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:31","end":"09:31","startHours":8.512551609611979,"endHours":9.512551609611979,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:31","end":"10:31","startHours":9.512551609611979,"endHours":10.512551609611979,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:31","end":"11:31","startHours":10.512551609611979,"endHours":11.512551609611979,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:31","end":"12:31","startHours":11.512551609611979,"endHours":12.512551609611979,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:31","end":"13:31","startHours":12.512551609611979,"endHours":13.512551609611979,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:31","end":"14:31","startHours":13.512551609611979,"endHours":14.512551609611979,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:31","end":"15:31","startHours":14.512551609611979,"endHours":15.512551609611979,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:31","end":"16:31","startHours":15.512551609611979,"endHours":16.51255160961198,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:31","end":"17:31","startHours":16.51255160961198,"endHours":17.51255160961198,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:31","end":"18:31","startHours":17.51255160961198,"endHours":18.51255160961198,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:31","end":"19:31","startHours":18.51255160961198,"endHours":19.51255160961198,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:31","end":"20:31","startHours":19.51255160961198,"endHours":20.51255160961198,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:31","end":"21:31","startHours":20.51255160961198,"endHours":21.51255160961198,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:31","end":"22:31","startHours":21.51255160961198,"endHours":22.51255160961198,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:31","end":"23:31","startHours":22.51255160961198,"endHours":23.51255160961198,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:31","end":"00:31","startHours":23.51255160961198,"endHours":24.51255160961198,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:31","end":"01:31","startHours":24.51255160961198,"endHours":25.51255160961198,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:31","end":"02:31","startHours":25.51255160961198,"endHours":26.51255160961198,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:31","end":"03:31","startHours":26.51255160961198,"endHours":27.51255160961198,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:31","end":"04:31","startHours":27.51255160961198,"endHours":28.51255160961198,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:31","end":"05:31","startHours":28.51255160961198,"endHours":29.51255160961198,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:31","end":"06:31","startHours":29.51255160961198,"endHours":30.51255160961198,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.0326509196735,"eotMinutes":-3.705178323396069,"ayanamsa":23.7133}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Caturthī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5},{"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":"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":"ranchi"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 1, 1990 CE · Ranchi, Jharkhand · Vidhyamitra","description":"January 1, 1990 CE for Ranchi, Jharkhand: Śukla Caturthī, sūryodaya 06:31, sūryāsta 17:14.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ranchi/1990-01-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ranchi/1990-01-01","sa":"https://sa.vidhyamitra.com/city/ranchi/1990-01-01","hi":"https://hi.vidhyamitra.com/city/ranchi/1990-01-01","x-default":"https://vidhyamitra.com/city/ranchi/1990-01-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T17:50:45.547Z","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":"2026-05-17T17:50:45.547Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T17:50:45.547Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}