{"id":"vidhyamitra:city-day:rishikesh:1990-02-22:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1990-02-22","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-02-22","date_display":"February 22, 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":2,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447944.770833,"kali_year":5091,"ahargana":1859479.2708,"sun":{"sidereal_longitude":309.5879,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":267.6076,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":318.0197,"elapsed_within_tithi_degrees":6.0197},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":267.6076,"elapsed_within_degrees":0.9409},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":217.1955},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2,"day":22,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447944.770833,"ahargana":1859479.2708,"kali_year":5091,"ayanamsa_lahiri":23.7153,"grahas":{"sun":{"sidereal_longitude":309.435066,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":267.62376600000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false,"latitude":-2.127},"mars":{"sidereal_longitude":263.4555660000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":290.89646600000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":67.24976600000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":270.612166,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":267.5072660000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":295.8398,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":115.8398,"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":2,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447944.770833,"kali_year":5091,"ahargana":1859479.2708,"sun":{"sidereal_longitude":309.5879,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":267.6076,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":318.0197,"elapsed_within_tithi_degrees":6.0197},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":267.6076,"elapsed_within_degrees":0.9409},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":217.1955},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.127,"elongation":41.98},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.127,"opposition_distance":138.02}},"eclipse_window_40days":[]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"06:51","sunsetLocal":"18:11","solarNoonLocal":"12:31","dayLengthHours":11.321353365274089,"dayLengthDisplay":"11 Hours 19 Mins 17 Secs","nightLengthDisplay":"12 Hours 40 Mins 43 Secs","moonriseLocal":"04:34","moonsetLocal":"14:53","rahuKala":{"name":"Rāhu Kāla","start":"13:56","end":"15:21","startHours":13.932075169907472,"endHours":15.347244340566732,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:51","end":"08:16","startHours":6.8562293166111665,"endHours":8.271398487270428,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:41","end":"11:06","startHours":9.68656765792969,"endHours":11.10173682858895,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:30","end":"09:53","startHours":9.49787843517512,"endHours":9.875256880684256,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:20","end":"07:38","startHours":7.327952373497586,"endHours":7.629855129904896,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:08","end":"12:54","startHours":12.139527553739075,"endHours":12.894284444757346,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:21","end":"06:06","startHours":5.346715534574622,"endHours":6.101472425592894,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:55","end":"06:51","startHours":5.912783202838326,"endHours":6.8562293166111665,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:24","end":"15:10","startHours":14.403798226793892,"endHours":15.158555117812165,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:59","end":"18:23","startHours":17.977582681885256,"endHours":18.377582681885254,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:11","end":"18:39","startHours":18.177582681885255,"endHours":18.649305738771677,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:56","end":"19:41","startHours":17.927582681885255,"endHours":19.677582681885255,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:08","end":"00:54","startHours":24.13952755373907,"endHours":24.894284444757346,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:51","end":"08:16","startHours":6.8562293166111665,"endHours":8.271398487270428,"quality":"auspicious"},{"name":"Roga","start":"08:16","end":"09:41","startHours":8.271398487270428,"endHours":9.68656765792969,"quality":"inauspicious"},{"name":"Udveg","start":"09:41","end":"11:06","startHours":9.68656765792969,"endHours":11.10173682858895,"quality":"inauspicious"},{"name":"Chala","start":"11:06","end":"12:31","startHours":11.10173682858895,"endHours":12.51690599924821,"quality":"neutral"},{"name":"Labha","start":"12:31","end":"13:56","startHours":12.51690599924821,"endHours":13.932075169907472,"quality":"auspicious"},{"name":"Amṛta","start":"13:56","end":"15:21","startHours":13.932075169907472,"endHours":15.347244340566732,"quality":"auspicious"},{"name":"Kāla","start":"15:21","end":"16:46","startHours":15.347244340566732,"endHours":16.762413511225994,"quality":"inauspicious"},{"name":"Śubha","start":"16:46","end":"18:11","startHours":16.762413511225994,"endHours":18.177582681885255,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:11","end":"19:46","startHours":18.177582681885255,"endHours":19.762413511225994,"quality":"auspicious"},{"name":"Kāla","start":"19:46","end":"21:21","startHours":19.762413511225994,"endHours":21.347244340566732,"quality":"inauspicious"},{"name":"Śubha","start":"21:21","end":"22:56","startHours":21.347244340566732,"endHours":22.93207516990747,"quality":"auspicious"},{"name":"Roga","start":"22:56","end":"00:31","startHours":22.93207516990747,"endHours":24.51690599924821,"quality":"inauspicious"},{"name":"Udveg","start":"00:31","end":"02:06","startHours":24.51690599924821,"endHours":26.101736828588948,"quality":"inauspicious"},{"name":"Chala","start":"02:06","end":"03:41","startHours":26.101736828588948,"endHours":27.68656765792969,"quality":"neutral"},{"name":"Labha","start":"03:41","end":"05:16","startHours":27.68656765792969,"endHours":29.271398487270428,"quality":"auspicious"},{"name":"Amṛta","start":"05:16","end":"06:51","startHours":29.271398487270428,"endHours":30.856229316611167,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:51","end":"07:51","startHours":6.8562293166111665,"endHours":7.8562293166111665,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:51","end":"08:51","startHours":7.8562293166111665,"endHours":8.856229316611167,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:51","end":"09:51","startHours":8.856229316611167,"endHours":9.856229316611167,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:51","end":"10:51","startHours":9.856229316611167,"endHours":10.856229316611167,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:51","end":"11:51","startHours":10.856229316611167,"endHours":11.856229316611167,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:51","end":"12:51","startHours":11.856229316611167,"endHours":12.856229316611167,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:51","end":"13:51","startHours":12.856229316611167,"endHours":13.856229316611167,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:51","end":"14:51","startHours":13.856229316611167,"endHours":14.856229316611167,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:51","end":"15:51","startHours":14.856229316611167,"endHours":15.856229316611167,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:51","end":"16:51","startHours":15.856229316611167,"endHours":16.856229316611167,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:51","end":"17:51","startHours":16.856229316611167,"endHours":17.856229316611167,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:51","end":"18:51","startHours":17.856229316611167,"endHours":18.856229316611167,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:51","end":"19:51","startHours":18.856229316611167,"endHours":19.856229316611167,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:51","end":"20:51","startHours":19.856229316611167,"endHours":20.856229316611167,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:51","end":"21:51","startHours":20.856229316611167,"endHours":21.856229316611167,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:51","end":"22:51","startHours":21.856229316611167,"endHours":22.856229316611167,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:51","end":"23:51","startHours":22.856229316611167,"endHours":23.856229316611167,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:51","end":"00:51","startHours":23.856229316611167,"endHours":24.856229316611167,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:51","end":"01:51","startHours":24.856229316611167,"endHours":25.856229316611167,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:51","end":"02:51","startHours":25.856229316611167,"endHours":26.856229316611167,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:51","end":"03:51","startHours":26.856229316611167,"endHours":27.856229316611167,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:51","end":"04:51","startHours":27.856229316611167,"endHours":28.856229316611167,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:51","end":"05:51","startHours":28.856229316611167,"endHours":29.856229316611167,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:51","end":"06:51","startHours":29.856229316611167,"endHours":30.856229316611167,"planetary_lord":"Moon"}],"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","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-10.348564606090042,"eotMinutes":-14.08475995489261,"ayanamsa":23.7153}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Dvādaśī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi":"Kumbha"},"precedence":5}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 22, 1990 CE · Ṛṣikeśa · Vidhyamitra","description":"February 22, 1990 CE for Ṛṣikeśa: Kṛṣṇa Dvādaśī, sūryodaya 06:51, sūryāsta 18:11.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1990-02-22","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1990-02-22","sa":"https://sa.vidhyamitra.com/city/rishikesh/1990-02-22","hi":"https://hi.vidhyamitra.com/city/rishikesh/1990-02-22","x-default":"https://vidhyamitra.com/city/rishikesh/1990-02-22"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T01:05:41.359Z","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":"2026-05-18T01:05:41.359Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T01:05:41.359Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}