{"id":"vidhyamitra:city-day:rishikesh:2031-08-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2031-08-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2031-08-19","date_display":"August 19, 2031 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":2031,"month":8,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2463097.770833,"kali_year":5133,"ahargana":1874632.2708,"sun":{"sidereal_longitude":120.8992,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":131.3458,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":10.4466,"elapsed_within_tithi_degrees":10.4466},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":131.3458,"elapsed_within_degrees":11.3458},"yoga":{"number":19,"name":"Parigha","sum_longitude":252.245},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2031,"month":8,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2463097.770833,"ahargana":1874632.2708,"kali_year":5133,"ayanamsa_lahiri":24.2949,"grahas":{"sun":{"sidereal_longitude":121.60501,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":131.16151000000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false,"latitude":-4.4518},"mars":{"sidereal_longitude":211.69471,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":110.14551,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":234.83361000000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":108.79341,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":56.615009999999984,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":212.9609,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":32.9609,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"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":2031,"month":8,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2463097.770833,"kali_year":5133,"ahargana":1874632.2708,"sun":{"sidereal_longitude":120.8992,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":131.3458,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":10.4466,"elapsed_within_tithi_degrees":10.4466},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":131.3458,"elapsed_within_degrees":11.3458},"yoga":{"number":19,"name":"Parigha","sum_longitude":252.245},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.452,"elongation":10.447},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.452,"opposition_distance":169.553}},"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":"05:46","sunsetLocal":"18:55","solarNoonLocal":"12:20","dayLengthHours":13.148435908432418,"dayLengthDisplay":"13 Hours 08 Mins 54 Secs","nightLengthDisplay":"10 Hours 51 Mins 06 Secs","moonriseLocal":"06:33","moonsetLocal":"19:23","rahuKala":{"name":"Rāhu Kāla","start":"15:37","end":"17:16","startHours":15.624160120546897,"endHours":17.26771460910095,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:03","end":"10:42","startHours":9.049942166330688,"endHours":10.69349665488474,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:20","end":"13:59","startHours":12.337051143438792,"endHours":13.980605631992844,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:16","startHours":8.830801567856815,"endHours":9.269082764804562,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:19","end":"06:40","startHours":6.310684685407268,"endHours":6.661309642965466,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:47","startHours":11.898769946491045,"endHours":12.775332340386539,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:01","end":"04:53","startHours":4.009708401431595,"endHours":4.886270795327089,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:40","end":"05:46","startHours":4.667130196853216,"endHours":5.762833189222584,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:32","end":"15:24","startHours":14.528457128177529,"endHours":15.405019522073022,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:43","end":"19:07","startHours":18.711269097655002,"endHours":19.111269097655,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:55","end":"19:28","startHours":18.911269097655,"endHours":19.459120593839685,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:40","end":"20:25","startHours":18.661269097655,"endHours":20.411269097655,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:47","startHours":23.898769946491043,"endHours":24.77533234038654,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:46","end":"07:24","startHours":5.762833189222584,"endHours":7.406387677776636,"quality":"inauspicious"},{"name":"Udveg","start":"07:24","end":"09:03","startHours":7.406387677776636,"endHours":9.049942166330688,"quality":"inauspicious"},{"name":"Chala","start":"09:03","end":"10:42","startHours":9.049942166330688,"endHours":10.69349665488474,"quality":"neutral"},{"name":"Labha","start":"10:42","end":"12:20","startHours":10.69349665488474,"endHours":12.337051143438792,"quality":"auspicious"},{"name":"Amṛta","start":"12:20","end":"13:59","startHours":12.337051143438792,"endHours":13.980605631992844,"quality":"auspicious"},{"name":"Kāla","start":"13:59","end":"15:37","startHours":13.980605631992844,"endHours":15.624160120546897,"quality":"inauspicious"},{"name":"Śubha","start":"15:37","end":"17:16","startHours":15.624160120546897,"endHours":17.26771460910095,"quality":"auspicious"},{"name":"Roga","start":"17:16","end":"18:55","startHours":17.26771460910095,"endHours":18.911269097655,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:55","end":"20:16","startHours":18.911269097655,"endHours":20.26771460910095,"quality":"inauspicious"},{"name":"Śubha","start":"20:16","end":"21:37","startHours":20.26771460910095,"endHours":21.624160120546897,"quality":"auspicious"},{"name":"Roga","start":"21:37","end":"22:59","startHours":21.624160120546897,"endHours":22.980605631992844,"quality":"inauspicious"},{"name":"Udveg","start":"22:59","end":"00:20","startHours":22.980605631992844,"endHours":24.337051143438792,"quality":"inauspicious"},{"name":"Chala","start":"00:20","end":"01:42","startHours":24.337051143438792,"endHours":25.69349665488474,"quality":"neutral"},{"name":"Labha","start":"01:42","end":"03:03","startHours":25.69349665488474,"endHours":27.049942166330688,"quality":"auspicious"},{"name":"Amṛta","start":"03:03","end":"04:24","startHours":27.049942166330688,"endHours":28.406387677776635,"quality":"auspicious"},{"name":"Kāla","start":"04:24","end":"05:46","startHours":28.406387677776635,"endHours":29.762833189222583,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:46","end":"06:46","startHours":5.762833189222584,"endHours":6.762833189222584,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:46","end":"07:46","startHours":6.762833189222584,"endHours":7.762833189222584,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:46","end":"08:46","startHours":7.762833189222584,"endHours":8.762833189222583,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:46","end":"09:46","startHours":8.762833189222583,"endHours":9.762833189222583,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:46","end":"10:46","startHours":9.762833189222583,"endHours":10.762833189222583,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:46","end":"11:46","startHours":10.762833189222583,"endHours":11.762833189222583,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:46","end":"12:46","startHours":11.762833189222583,"endHours":12.762833189222583,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:46","end":"13:46","startHours":12.762833189222583,"endHours":13.762833189222583,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:46","end":"14:46","startHours":13.762833189222583,"endHours":14.762833189222583,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:46","end":"15:46","startHours":14.762833189222583,"endHours":15.762833189222583,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:46","end":"16:46","startHours":15.762833189222583,"endHours":16.762833189222583,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:46","end":"17:46","startHours":16.762833189222583,"endHours":17.762833189222583,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:46","end":"18:46","startHours":17.762833189222583,"endHours":18.762833189222583,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:46","end":"19:46","startHours":18.762833189222583,"endHours":19.762833189222583,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:46","end":"20:46","startHours":19.762833189222583,"endHours":20.762833189222583,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:46","end":"21:46","startHours":20.762833189222583,"endHours":21.762833189222583,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:46","end":"22:46","startHours":21.762833189222583,"endHours":22.762833189222583,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:46","end":"23:46","startHours":22.762833189222583,"endHours":23.762833189222583,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:46","end":"00:46","startHours":23.762833189222583,"endHours":24.762833189222583,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:46","end":"01:46","startHours":24.762833189222583,"endHours":25.762833189222583,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:46","end":"02:46","startHours":25.762833189222583,"endHours":26.762833189222583,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:46","end":"03:46","startHours":26.762833189222583,"endHours":27.762833189222583,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:46","end":"04:46","startHours":27.762833189222583,"endHours":28.762833189222583,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:46","end":"05:46","startHours":28.762833189222583,"endHours":29.762833189222583,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"West","rahuVasa":"North","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"drikRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":12.88440801050411,"eotMinutes":-3.2934686063275223,"ayanamsa":24.2949}},"calendars":{"vikram_samvat":2088,"vikram_samvatsara":"Raktākṣī","saka_samvat":1953,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1438,"malayalam_era":1207,"nanakshahi_year":562,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Pratipada · Vikram 2088 Raktākṣī · Śaka 1953 Virodhakṛt"},"festivals":[{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 August 19, 2031 CE · Ṛṣikeśa · Vidhyamitra","description":"August 19, 2031 CE for Ṛṣikeśa: Śukla Pratipada, sūryodaya 05:46, sūryāsta 18:55.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2031-08-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2031-08-19","sa":"https://sa.vidhyamitra.com/city/rishikesh/2031-08-19","hi":"https://hi.vidhyamitra.com/city/rishikesh/2031-08-19","x-default":"https://vidhyamitra.com/city/rishikesh/2031-08-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T07:48:29.046Z","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":"2026-05-15T07:48:29.046Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T07:48:29.046Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}