{"id":"vidhyamitra:city-day:rishikesh:1964-09-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1964-09-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1964-09-19","date_display":"September 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":9,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438657.770833,"kali_year":5066,"ahargana":1850192.2708,"sun":{"sidereal_longitude":152.1231,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":298.9098,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.7867,"elapsed_within_tithi_degrees":2.7867},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":298.9098,"elapsed_within_degrees":5.5764},"yoga":{"number":7,"name":"Sukarma","sum_longitude":91.0329},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":9,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438657.770833,"ahargana":1850192.2708,"kali_year":5066,"ayanamsa_lahiri":23.3601,"grahas":{"sun":{"sidereal_longitude":152.773097,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":300.01879699999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false,"latitude":-3.4957},"mars":{"sidereal_longitude":99.46859699999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":135.49269700000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":33.434597,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":108.54539699999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":307.216997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":67.9097,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":247.9097,"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":9,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438657.770833,"kali_year":5066,"ahargana":1850192.2708,"sun":{"sidereal_longitude":152.1231,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":298.9098,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.7867,"elapsed_within_tithi_degrees":2.7867},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":298.9098,"elapsed_within_degrees":5.5764},"yoga":{"number":7,"name":"Sukarma","sum_longitude":91.0329},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.496,"elongation":146.787},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.496,"opposition_distance":33.213}},"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":"06:03","sunsetLocal":"18:17","solarNoonLocal":"12:10","dayLengthHours":12.247205392352981,"dayLengthDisplay":"12 Hours 14 Mins 50 Secs","nightLengthDisplay":"11 Hours 45 Mins 10 Secs","moonriseLocal":"16:29","moonsetLocal":"03:29","rahuKala":{"name":"Rāhu Kāla","start":"09:06","end":"10:38","startHours":9.104037383787588,"endHours":10.634938057831711,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:42","end":"15:14","startHours":13.696739405919956,"endHours":15.227640079964079,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:03","end":"07:34","startHours":6.042236035699344,"endHours":7.5731367097434665,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.899917293915038,"endHours":9.308157473660138,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:33","end":"06:53","startHours":6.552536260380718,"endHours":6.8791284041767975,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:45","end":"12:34","startHours":11.757598552130734,"endHours":12.574078911620933,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:25","end":"05:14","startHours":4.409275316718946,"endHours":5.225755676209145,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:01","end":"06:03","startHours":5.021635586336595,"endHours":6.042236035699344,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:12","end":"15:01","startHours":14.20703963060133,"endHours":15.023519990091527,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:05","end":"18:29","startHours":18.089441428052325,"endHours":18.489441428052324,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:17","end":"18:48","startHours":18.289441428052324,"endHours":18.799741652733697,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:02","end":"19:47","startHours":18.039441428052324,"endHours":19.789441428052324,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:45","end":"00:34","startHours":23.757598552130734,"endHours":24.574078911620933,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:03","end":"07:34","startHours":6.042236035699344,"endHours":7.5731367097434665,"quality":"inauspicious"},{"name":"Śubha","start":"07:34","end":"09:06","startHours":7.5731367097434665,"endHours":9.104037383787588,"quality":"auspicious"},{"name":"Roga","start":"09:06","end":"10:38","startHours":9.104037383787588,"endHours":10.634938057831711,"quality":"inauspicious"},{"name":"Udveg","start":"10:38","end":"12:10","startHours":10.634938057831711,"endHours":12.165838731875834,"quality":"inauspicious"},{"name":"Chala","start":"12:10","end":"13:42","startHours":12.165838731875834,"endHours":13.696739405919956,"quality":"neutral"},{"name":"Labha","start":"13:42","end":"15:14","startHours":13.696739405919956,"endHours":15.227640079964079,"quality":"auspicious"},{"name":"Amṛta","start":"15:14","end":"16:46","startHours":15.227640079964079,"endHours":16.7585407540082,"quality":"auspicious"},{"name":"Kāla","start":"16:46","end":"18:17","startHours":16.7585407540082,"endHours":18.289441428052324,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:17","end":"19:46","startHours":18.289441428052324,"endHours":19.7585407540082,"quality":"auspicious"},{"name":"Amṛta","start":"19:46","end":"21:14","startHours":19.7585407540082,"endHours":21.22764007996408,"quality":"auspicious"},{"name":"Kāla","start":"21:14","end":"22:42","startHours":21.22764007996408,"endHours":22.696739405919956,"quality":"inauspicious"},{"name":"Śubha","start":"22:42","end":"00:10","startHours":22.696739405919956,"endHours":24.165838731875834,"quality":"auspicious"},{"name":"Roga","start":"00:10","end":"01:38","startHours":24.165838731875834,"endHours":25.63493805783171,"quality":"inauspicious"},{"name":"Udveg","start":"01:38","end":"03:06","startHours":25.63493805783171,"endHours":27.10403738378759,"quality":"inauspicious"},{"name":"Chala","start":"03:06","end":"04:34","startHours":27.10403738378759,"endHours":28.573136709743466,"quality":"neutral"},{"name":"Labha","start":"04:34","end":"06:03","startHours":28.573136709743466,"endHours":30.042236035699343,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:03","end":"07:03","startHours":6.042236035699344,"endHours":7.042236035699344,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:03","end":"08:03","startHours":7.042236035699344,"endHours":8.042236035699343,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:03","end":"09:03","startHours":8.042236035699343,"endHours":9.042236035699343,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:03","end":"10:03","startHours":9.042236035699343,"endHours":10.042236035699343,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:03","end":"11:03","startHours":10.042236035699343,"endHours":11.042236035699343,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:03","end":"12:03","startHours":11.042236035699343,"endHours":12.042236035699343,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:03","end":"13:03","startHours":12.042236035699343,"endHours":13.042236035699343,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:03","end":"14:03","startHours":13.042236035699343,"endHours":14.042236035699343,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:03","end":"15:03","startHours":14.042236035699343,"endHours":15.042236035699343,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:03","end":"16:03","startHours":15.042236035699343,"endHours":16.042236035699343,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:03","end":"17:03","startHours":16.042236035699343,"endHours":17.042236035699343,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:03","end":"18:03","startHours":17.042236035699343,"endHours":18.042236035699343,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:03","end":"19:03","startHours":18.042236035699343,"endHours":19.042236035699343,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:03","end":"20:03","startHours":19.042236035699343,"endHours":20.042236035699343,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:03","end":"21:03","startHours":20.042236035699343,"endHours":21.042236035699343,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:03","end":"22:03","startHours":21.042236035699343,"endHours":22.042236035699343,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:03","end":"23:03","startHours":22.042236035699343,"endHours":23.042236035699343,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:03","end":"00:03","startHours":23.042236035699343,"endHours":24.042236035699343,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:03","end":"01:03","startHours":24.042236035699343,"endHours":25.042236035699343,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:03","end":"02:03","startHours":25.042236035699343,"endHours":26.042236035699343,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:03","end":"03:03","startHours":26.042236035699343,"endHours":27.042236035699343,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:03","end":"04:03","startHours":27.042236035699343,"endHours":28.042236035699343,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:03","end":"05:03","startHours":28.042236035699343,"endHours":29.042236035699343,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:03","end":"06:03","startHours":29.042236035699343,"endHours":30.042236035699343,"planetary_lord":"Mercury"}],"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":"East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":1.5369701815969314,"eotMinutes":6.979276087449932,"ayanamsa":23.3601}},"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","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Trayodaśī · Vikram 2021 Piṅgala · Śaka 1886 Krodhi"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 September 19, 1964 CE · Ṛṣikeśa · Vidhyamitra","description":"September 19, 1964 CE for Ṛṣikeśa: Śukla Trayodaśī, sūryodaya 06:03, sūryāsta 18:17.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1964-09-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1964-09-19","sa":"https://sa.vidhyamitra.com/city/rishikesh/1964-09-19","hi":"https://hi.vidhyamitra.com/city/rishikesh/1964-09-19","x-default":"https://vidhyamitra.com/city/rishikesh/1964-09-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T11:39:36.615Z","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":"2026-05-31T11:39:36.615Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T11:39:36.615Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}