{"id":"vidhyamitra:city-day:rishikesh:1964-08-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1964-08-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1964-08-19","date_display":"August 19, 1964 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":1964,"month":8,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438626.770833,"kali_year":5066,"ahargana":1850161.2708,"sun":{"sidereal_longitude":122.1789,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":253.5669,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":131.388,"elapsed_within_tithi_degrees":11.388},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":253.5669,"elapsed_within_degrees":0.2335},"yoga":{"number":2,"name":"Prīti","sum_longitude":15.7458},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1964,"month":8,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438626.770833,"ahargana":1850161.2708,"kali_year":5066,"ayanamsa_lahiri":23.3589,"grahas":{"sun":{"sidereal_longitude":122.72838200000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":255.19508199999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false,"latitude":-0.3147},"mars":{"sidereal_longitude":79.877682,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":145.23308199999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":32.329182,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":77.781882,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":309.46108200000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":69.5523,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":249.5523,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","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":1964,"month":8,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438626.770833,"kali_year":5066,"ahargana":1850161.2708,"sun":{"sidereal_longitude":122.1789,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":253.5669,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":131.388,"elapsed_within_tithi_degrees":11.388},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":253.5669,"elapsed_within_degrees":0.2335},"yoga":{"number":2,"name":"Prīti","sum_longitude":15.7458},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.315,"elongation":131.388},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.315,"opposition_distance":48.612}},"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":13.143193985930692,"dayLengthDisplay":"13 Hours 08 Mins 35 Secs","nightLengthDisplay":"10 Hours 51 Mins 25 Secs","moonriseLocal":"16:04","moonsetLocal":"02:16","rahuKala":{"name":"Rāhu Kāla","start":"12:20","end":"13:59","startHours":12.337051143438792,"endHours":13.979950391680129,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:25","end":"09:03","startHours":7.408353398714784,"endHours":9.05125264695612,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:42","end":"12:20","startHours":10.694151895197457,"endHours":12.337051143438792,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:16","startHours":8.832199413857275,"endHours":9.270305880054964,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:19","end":"06:40","startHours":6.31308723322056,"endHours":6.663572406178711,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:47","startHours":11.898944677241102,"endHours":12.775157609636482,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:01","end":"04:53","startHours":4.013028285682688,"endHours":4.889241218078068,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:40","end":"05:46","startHours":4.670187984979223,"endHours":5.765454150473447,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:32","end":"15:24","startHours":14.527583474427242,"endHours":15.403796406822622,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:43","end":"19:07","startHours":18.70864813640414,"endHours":19.10864813640414,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:55","end":"19:27","startHours":18.90864813640414,"endHours":19.45628121915125,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:40","end":"20:25","startHours":18.65864813640414,"endHours":20.40864813640414,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:47","startHours":23.8989446772411,"endHours":24.775157609636484,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:46","end":"07:25","startHours":5.765454150473447,"endHours":7.408353398714784,"quality":"auspicious"},{"name":"Amṛta","start":"07:25","end":"09:03","startHours":7.408353398714784,"endHours":9.05125264695612,"quality":"auspicious"},{"name":"Kāla","start":"09:03","end":"10:42","startHours":9.05125264695612,"endHours":10.694151895197457,"quality":"inauspicious"},{"name":"Śubha","start":"10:42","end":"12:20","startHours":10.694151895197457,"endHours":12.337051143438792,"quality":"auspicious"},{"name":"Roga","start":"12:20","end":"13:59","startHours":12.337051143438792,"endHours":13.979950391680129,"quality":"inauspicious"},{"name":"Udveg","start":"13:59","end":"15:37","startHours":13.979950391680129,"endHours":15.622849639921466,"quality":"inauspicious"},{"name":"Chala","start":"15:37","end":"17:16","startHours":15.622849639921466,"endHours":17.265748888162804,"quality":"neutral"},{"name":"Labha","start":"17:16","end":"18:55","startHours":17.265748888162804,"endHours":18.90864813640414,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:55","end":"20:16","startHours":18.90864813640414,"endHours":20.265748888162804,"quality":"inauspicious"},{"name":"Chala","start":"20:16","end":"21:37","startHours":20.265748888162804,"endHours":21.622849639921466,"quality":"neutral"},{"name":"Labha","start":"21:37","end":"22:59","startHours":21.622849639921466,"endHours":22.97995039168013,"quality":"auspicious"},{"name":"Amṛta","start":"22:59","end":"00:20","startHours":22.97995039168013,"endHours":24.337051143438792,"quality":"auspicious"},{"name":"Kāla","start":"00:20","end":"01:42","startHours":24.337051143438792,"endHours":25.694151895197457,"quality":"inauspicious"},{"name":"Śubha","start":"01:42","end":"03:03","startHours":25.694151895197457,"endHours":27.051252646956122,"quality":"auspicious"},{"name":"Roga","start":"03:03","end":"04:25","startHours":27.051252646956122,"endHours":28.408353398714784,"quality":"inauspicious"},{"name":"Udveg","start":"04:25","end":"05:46","startHours":28.408353398714784,"endHours":29.765454150473445,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:46","end":"06:46","startHours":5.765454150473447,"endHours":6.765454150473447,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:46","end":"07:46","startHours":6.765454150473447,"endHours":7.765454150473447,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:46","end":"08:46","startHours":7.765454150473447,"endHours":8.765454150473447,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:46","end":"09:46","startHours":8.765454150473447,"endHours":9.765454150473447,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:46","end":"10:46","startHours":9.765454150473447,"endHours":10.765454150473447,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:46","end":"11:46","startHours":10.765454150473447,"endHours":11.765454150473447,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:46","end":"12:46","startHours":11.765454150473447,"endHours":12.765454150473447,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:46","end":"13:46","startHours":12.765454150473447,"endHours":13.765454150473447,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:46","end":"14:46","startHours":13.765454150473447,"endHours":14.765454150473447,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:46","end":"15:46","startHours":14.765454150473447,"endHours":15.765454150473447,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:46","end":"16:46","startHours":15.765454150473447,"endHours":16.765454150473445,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:46","end":"17:46","startHours":16.765454150473445,"endHours":17.765454150473445,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:46","end":"18:46","startHours":17.765454150473445,"endHours":18.765454150473445,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:46","end":"19:46","startHours":18.765454150473445,"endHours":19.765454150473445,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:46","end":"20:46","startHours":19.765454150473445,"endHours":20.765454150473445,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:46","end":"21:46","startHours":20.765454150473445,"endHours":21.765454150473445,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:46","end":"22:46","startHours":21.765454150473445,"endHours":22.765454150473445,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:46","end":"23:46","startHours":22.765454150473445,"endHours":23.765454150473445,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:46","end":"00:46","startHours":23.765454150473445,"endHours":24.765454150473445,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:46","end":"01:46","startHours":24.765454150473445,"endHours":25.765454150473445,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:46","end":"02:46","startHours":25.765454150473445,"endHours":26.765454150473445,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:46","end":"03:46","startHours":26.765454150473445,"endHours":27.765454150473445,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:46","end":"04:46","startHours":27.765454150473445,"endHours":28.765454150473445,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:46","end":"05:46","startHours":28.765454150473445,"endHours":29.765454150473445,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","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":"North (Uttara)","chandraVasa":"East","rahuVasa":"South-West","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":12.82104192480404,"eotMinutes":-3.2934686063275223,"ayanamsa":23.3589}},"calendars":{"vikram_samvat":2021,"vikram_samvatsara":"Piṅgala","saka_samvat":1886,"saka_samvatsara":"Krodhi","bengali_samvat":1371,"malayalam_era":1140,"nanakshahi_year":495,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Ekādaśī · Vikram 2021 Piṅgala · Śaka 1886 Krodhi"},"festivals":[{"id":"parsva-ekadashi","name":"Pārśva (Parivartinī) Ekādaśī","name_sanskrit":"पार्श्व एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu (turning side in yoga-nidrā)","significance":"Viṣṇu turns from one side to another in yoga-nidrā (mid-Cāturmāsya).","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":3},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5},{"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":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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, 1964 CE · Ṛṣikeśa · Vidhyamitra","description":"August 19, 1964 CE for Ṛṣikeśa: Śukla Ekādaśī, sūryodaya 05:46, sūryāsta 18:55.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1964-08-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1964-08-19","sa":"https://sa.vidhyamitra.com/city/rishikesh/1964-08-19","hi":"https://hi.vidhyamitra.com/city/rishikesh/1964-08-19","x-default":"https://vidhyamitra.com/city/rishikesh/1964-08-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T13:21:20.830Z","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":"2026-05-20T13:21:20.830Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T13:21:20.830Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}