{"id":"vidhyamitra:city-day:rishikesh:1990-04-02:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1990-04-02","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-04-02","date_display":"April 2, 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":2,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447983.770833,"kali_year":5091,"ahargana":1859518.2708,"sun":{"sidereal_longitude":348.5132,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":70.4317,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":81.9185,"elapsed_within_tithi_degrees":9.9185},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":70.4317,"elapsed_within_degrees":3.765},"yoga":{"number":5,"name":"Śobhana","sum_longitude":58.9449},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"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":4,"day":2,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447983.770833,"ahargana":1859518.2708,"kali_year":5091,"ayanamsa_lahiri":23.7168,"grahas":{"sun":{"sidereal_longitude":348.325375,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":73.30497500000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false,"latitude":3.0869},"mars":{"sidereal_longitude":292.29927499999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":2.2843750000000114,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":69.271275,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":301.9991749999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":270.51667499999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":293.7734,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":113.7734,"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":2,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447983.770833,"kali_year":5091,"ahargana":1859518.2708,"sun":{"sidereal_longitude":348.5132,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":70.4317,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":81.9185,"elapsed_within_tithi_degrees":9.9185},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":70.4317,"elapsed_within_degrees":3.765},"yoga":{"number":5,"name":"Śobhana","sum_longitude":58.9449},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.087,"elongation":81.919},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.087,"opposition_distance":98.081}},"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":"06:06","sunsetLocal":"18:36","solarNoonLocal":"12:21","dayLengthHours":12.497699360126177,"dayLengthDisplay":"12 Hours 29 Mins 52 Secs","nightLengthDisplay":"11 Hours 30 Mins 08 Secs","moonriseLocal":"11:00","moonsetLocal":"01:02","rahuKala":{"name":"Rāhu Kāla","start":"07:40","end":"09:13","startHours":7.662665483929683,"endHours":9.224877903945455,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:47","end":"12:21","startHours":10.787090323961227,"endHours":12.349302743976999,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:55","end":"15:28","startHours":13.911515163992771,"endHours":15.473727584008543,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:26","startHours":9.01658291461002,"endHours":9.43317289328089,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:37","end":"06:57","startHours":6.6211905372525015,"endHours":6.9544625201892,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:46","startHours":11.932712765306126,"endHours":12.765892722647871,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:26","end":"05:16","startHours":4.434093149230421,"endHours":5.267273106572166,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:04","end":"06:06","startHours":5.058978117236729,"endHours":6.1004530639139105,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:16","startHours":14.432252637331361,"endHours":15.265432594673106,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:24","end":"18:48","startHours":18.398152424040088,"endHours":18.798152424040087,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:36","end":"19:07","startHours":18.598152424040087,"endHours":19.11888989737868,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:21","end":"20:06","startHours":18.348152424040087,"endHours":20.098152424040087,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:46","startHours":23.932712765306125,"endHours":24.765892722647873,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:06","end":"07:40","startHours":6.1004530639139105,"endHours":7.662665483929683,"quality":"auspicious"},{"name":"Kāla","start":"07:40","end":"09:13","startHours":7.662665483929683,"endHours":9.224877903945455,"quality":"inauspicious"},{"name":"Śubha","start":"09:13","end":"10:47","startHours":9.224877903945455,"endHours":10.787090323961227,"quality":"auspicious"},{"name":"Roga","start":"10:47","end":"12:21","startHours":10.787090323961227,"endHours":12.349302743976999,"quality":"inauspicious"},{"name":"Udveg","start":"12:21","end":"13:55","startHours":12.349302743976999,"endHours":13.911515163992771,"quality":"inauspicious"},{"name":"Chala","start":"13:55","end":"15:28","startHours":13.911515163992771,"endHours":15.473727584008543,"quality":"neutral"},{"name":"Labha","start":"15:28","end":"17:02","startHours":15.473727584008543,"endHours":17.035940004024315,"quality":"auspicious"},{"name":"Amṛta","start":"17:02","end":"18:36","startHours":17.035940004024315,"endHours":18.598152424040087,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:36","end":"20:02","startHours":18.598152424040087,"endHours":20.035940004024315,"quality":"neutral"},{"name":"Labha","start":"20:02","end":"21:28","startHours":20.035940004024315,"endHours":21.473727584008543,"quality":"auspicious"},{"name":"Amṛta","start":"21:28","end":"22:55","startHours":21.473727584008543,"endHours":22.91151516399277,"quality":"auspicious"},{"name":"Kāla","start":"22:55","end":"00:21","startHours":22.91151516399277,"endHours":24.349302743977,"quality":"inauspicious"},{"name":"Śubha","start":"00:21","end":"01:47","startHours":24.349302743977,"endHours":25.787090323961227,"quality":"auspicious"},{"name":"Roga","start":"01:47","end":"03:13","startHours":25.787090323961227,"endHours":27.224877903945455,"quality":"inauspicious"},{"name":"Udveg","start":"03:13","end":"04:40","startHours":27.224877903945455,"endHours":28.662665483929683,"quality":"inauspicious"},{"name":"Chala","start":"04:40","end":"06:06","startHours":28.662665483929683,"endHours":30.10045306391391,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:06","end":"07:06","startHours":6.1004530639139105,"endHours":7.1004530639139105,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:06","end":"08:06","startHours":7.1004530639139105,"endHours":8.10045306391391,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:06","end":"09:06","startHours":8.10045306391391,"endHours":9.10045306391391,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:06","end":"10:06","startHours":9.10045306391391,"endHours":10.10045306391391,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:06","end":"11:06","startHours":10.10045306391391,"endHours":11.10045306391391,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:06","end":"12:06","startHours":11.10045306391391,"endHours":12.10045306391391,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:06","end":"13:06","startHours":12.10045306391391,"endHours":13.10045306391391,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:06","end":"14:06","startHours":13.10045306391391,"endHours":14.10045306391391,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:06","end":"15:06","startHours":14.10045306391391,"endHours":15.10045306391391,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:06","end":"16:06","startHours":15.10045306391391,"endHours":16.10045306391391,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:06","end":"17:06","startHours":16.10045306391391,"endHours":17.10045306391391,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:06","end":"18:06","startHours":17.10045306391391,"endHours":18.10045306391391,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:06","end":"19:06","startHours":18.10045306391391,"endHours":19.10045306391391,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:06","end":"20:06","startHours":19.10045306391391,"endHours":20.10045306391391,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:06","end":"21:06","startHours":20.10045306391391,"endHours":21.10045306391391,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:06","end":"22:06","startHours":21.10045306391391,"endHours":22.10045306391391,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:06","end":"23:06","startHours":22.10045306391391,"endHours":23.10045306391391,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:06","end":"00:06","startHours":23.10045306391391,"endHours":24.10045306391391,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:06","end":"01:06","startHours":24.10045306391391,"endHours":25.10045306391391,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:06","end":"02:06","startHours":25.10045306391391,"endHours":26.10045306391391,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:06","end":"03:06","startHours":26.10045306391391,"endHours":27.10045306391391,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:06","end":"04:06","startHours":27.10045306391391,"endHours":28.10045306391391,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:06","end":"05:06","startHours":28.10045306391391,"endHours":29.10045306391391,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:06","end":"06:06","startHours":29.10045306391391,"endHours":30.10045306391391,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Mudgara","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":4.759852617847497,"eotMinutes":-4.028564638619968,"ayanamsa":23.7168}},"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 Saptamī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[],"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":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 2, 1990 CE · Ṛṣikeśa · Vidhyamitra","description":"April 2, 1990 CE for Ṛṣikeśa: Śukla Saptamī, sūryodaya 06:06, sūryāsta 18:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1990-04-02","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1990-04-02","sa":"https://sa.vidhyamitra.com/city/rishikesh/1990-04-02","hi":"https://hi.vidhyamitra.com/city/rishikesh/1990-04-02","x-default":"https://vidhyamitra.com/city/rishikesh/1990-04-02"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T08:58:35.369Z","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":"2026-05-31T08:58:35.369Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T08:58:35.369Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}