{"id":"vidhyamitra:city-day:rishikesh:1979-09-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1979-09-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1979-09-19","date_display":"September 19, 1979 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":1979,"month":9,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444135.770833,"kali_year":5081,"ahargana":1855670.2708,"sun":{"sidereal_longitude":151.2638,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":124.615,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":333.3512,"elapsed_within_tithi_degrees":9.3512},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":124.615,"elapsed_within_degrees":4.615},"yoga":{"number":21,"name":"Siddha","sum_longitude":275.8788},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"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":1979,"month":9,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444135.770833,"ahargana":1855670.2708,"kali_year":5081,"ayanamsa_lahiri":23.5696,"grahas":{"sun":{"sidereal_longitude":151.94829700000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":126.34819700000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false,"latitude":-1.0146},"mars":{"sidereal_longitude":93.180297,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":157.11089700000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":124.09929699999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":158.89379699999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":144.528097,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":137.6589,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":317.6589,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"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":1979,"month":9,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444135.770833,"kali_year":5081,"ahargana":1855670.2708,"sun":{"sidereal_longitude":151.2638,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":124.615,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":333.3512,"elapsed_within_tithi_degrees":9.3512},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":124.615,"elapsed_within_degrees":4.615},"yoga":{"number":21,"name":"Siddha","sum_longitude":275.8788},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.015,"elongation":26.649},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.015,"opposition_distance":153.351}},"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":"06:02","sunsetLocal":"18:18","solarNoonLocal":"12:10","dayLengthHours":12.266110412084862,"dayLengthDisplay":"12 Hours 15 Mins 58 Secs","nightLengthDisplay":"11 Hours 44 Mins 02 Secs","moonriseLocal":"03:58","moonsetLocal":"16:57","rahuKala":{"name":"Rāhu Kāla","start":"12:10","end":"13:42","startHours":12.165838731875834,"endHours":13.699102533386442,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:34","end":"09:06","startHours":7.566047327344012,"endHours":9.09931112885462,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:38","end":"12:10","startHours":10.632574930365227,"endHours":12.165838731875834,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.894875955319872,"endHours":9.303746302389367,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:33","end":"06:52","startHours":6.543871459670273,"endHours":6.870967737325869,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:45","end":"12:34","startHours":11.756968384806338,"endHours":12.574709078945329,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:24","end":"05:13","startHours":4.397302137555422,"endHours":5.215042831694413,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:01","end":"06:02","startHours":5.010607658159666,"endHours":6.032783525833404,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:13","end":"15:02","startHours":14.210190467223311,"endHours":15.027931161362302,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:06","end":"18:30","startHours":18.098893937918266,"endHours":18.498893937918265,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:18","end":"18:49","startHours":18.298893937918265,"endHours":18.809981871755134,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:03","end":"19:48","startHours":18.048893937918265,"endHours":19.798893937918265,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:45","end":"00:34","startHours":23.75696838480634,"endHours":24.57470907894533,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:02","end":"07:34","startHours":6.032783525833404,"endHours":7.566047327344012,"quality":"auspicious"},{"name":"Amṛta","start":"07:34","end":"09:06","startHours":7.566047327344012,"endHours":9.09931112885462,"quality":"auspicious"},{"name":"Kāla","start":"09:06","end":"10:38","startHours":9.09931112885462,"endHours":10.632574930365227,"quality":"inauspicious"},{"name":"Śubha","start":"10:38","end":"12:10","startHours":10.632574930365227,"endHours":12.165838731875834,"quality":"auspicious"},{"name":"Roga","start":"12:10","end":"13:42","startHours":12.165838731875834,"endHours":13.699102533386442,"quality":"inauspicious"},{"name":"Udveg","start":"13:42","end":"15:14","startHours":13.699102533386442,"endHours":15.23236633489705,"quality":"inauspicious"},{"name":"Chala","start":"15:14","end":"16:46","startHours":15.23236633489705,"endHours":16.76563013640766,"quality":"neutral"},{"name":"Labha","start":"16:46","end":"18:18","startHours":16.76563013640766,"endHours":18.298893937918265,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:18","end":"19:46","startHours":18.298893937918265,"endHours":19.76563013640766,"quality":"inauspicious"},{"name":"Chala","start":"19:46","end":"21:14","startHours":19.76563013640766,"endHours":21.23236633489705,"quality":"neutral"},{"name":"Labha","start":"21:14","end":"22:42","startHours":21.23236633489705,"endHours":22.699102533386444,"quality":"auspicious"},{"name":"Amṛta","start":"22:42","end":"00:10","startHours":22.699102533386444,"endHours":24.165838731875834,"quality":"auspicious"},{"name":"Kāla","start":"00:10","end":"01:38","startHours":24.165838731875834,"endHours":25.632574930365227,"quality":"inauspicious"},{"name":"Śubha","start":"01:38","end":"03:06","startHours":25.632574930365227,"endHours":27.09931112885462,"quality":"auspicious"},{"name":"Roga","start":"03:06","end":"04:34","startHours":27.09931112885462,"endHours":28.56604732734401,"quality":"inauspicious"},{"name":"Udveg","start":"04:34","end":"06:02","startHours":28.56604732734401,"endHours":30.032783525833402,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:02","end":"07:02","startHours":6.032783525833404,"endHours":7.032783525833404,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:02","end":"08:02","startHours":7.032783525833404,"endHours":8.032783525833404,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:02","end":"09:02","startHours":8.032783525833404,"endHours":9.032783525833404,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:02","end":"10:02","startHours":9.032783525833404,"endHours":10.032783525833404,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:02","end":"11:02","startHours":10.032783525833404,"endHours":11.032783525833404,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:02","end":"12:02","startHours":11.032783525833404,"endHours":12.032783525833404,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:02","end":"13:02","startHours":12.032783525833404,"endHours":13.032783525833404,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:02","end":"14:02","startHours":13.032783525833404,"endHours":14.032783525833404,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:02","end":"15:02","startHours":14.032783525833404,"endHours":15.032783525833404,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:02","end":"16:02","startHours":15.032783525833404,"endHours":16.032783525833402,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:02","end":"17:02","startHours":16.032783525833402,"endHours":17.032783525833402,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:02","end":"18:02","startHours":17.032783525833402,"endHours":18.032783525833402,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:02","end":"19:02","startHours":18.032783525833402,"endHours":19.032783525833402,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:02","end":"20:02","startHours":19.032783525833402,"endHours":20.032783525833402,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:02","end":"21:02","startHours":20.032783525833402,"endHours":21.032783525833402,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:02","end":"22:02","startHours":21.032783525833402,"endHours":22.032783525833402,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:02","end":"23:02","startHours":22.032783525833402,"endHours":23.032783525833402,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:02","end":"00:02","startHours":23.032783525833402,"endHours":24.032783525833402,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:02","end":"01:02","startHours":24.032783525833402,"endHours":25.032783525833402,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:02","end":"02:02","startHours":25.032783525833402,"endHours":26.032783525833402,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:02","end":"03:02","startHours":26.032783525833402,"endHours":27.032783525833402,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:02","end":"04:02","startHours":27.032783525833402,"endHours":28.032783525833402,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:02","end":"05:02","startHours":28.032783525833402,"endHours":29.032783525833402,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:02","end":"06:02","startHours":29.032783525833402,"endHours":30.032783525833402,"planetary_lord":"Sun"}],"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":"South-West","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":1.7811470883092522,"eotMinutes":6.979276087449932,"ayanamsa":23.5696}},"calendars":{"vikram_samvat":2036,"vikram_samvatsara":"Aṅgirasa","saka_samvat":1901,"saka_samvatsara":"Siddhārthī","bengali_samvat":1386,"malayalam_era":1155,"nanakshahi_year":510,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","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":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Trayodaśī · Vikram 2036 Aṅgirasa · Śaka 1901 Siddhārthī"},"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":"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 September 19, 1979 CE · Ṛṣikeśa · Vidhyamitra","description":"September 19, 1979 CE for Ṛṣikeśa: Kṛṣṇa Trayodaśī, sūryodaya 06:02, sūryāsta 18:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1979-09-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1979-09-19","sa":"https://sa.vidhyamitra.com/city/rishikesh/1979-09-19","hi":"https://hi.vidhyamitra.com/city/rishikesh/1979-09-19","x-default":"https://vidhyamitra.com/city/rishikesh/1979-09-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T10:35:40.889Z","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":"2026-05-31T10:35:40.889Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T10:35:40.889Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}