{"id":"vidhyamitra:city-day:rishikesh:1986-09-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1986-09-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1986-09-16","date_display":"September 16, 1986 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":1986,"month":9,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446689.770833,"kali_year":5088,"ahargana":1858224.2708,"sun":{"sidereal_longitude":148.5263,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":302.1027,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":153.5764,"elapsed_within_tithi_degrees":9.5764},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3,"moon_longitude":302.1027,"elapsed_within_degrees":8.7694},"yoga":{"number":7,"name":"Sukarma","sum_longitude":90.629},"karana":{"half_tithi_index":25,"name":"Taitila"},"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":1986,"month":9,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446689.770833,"ahargana":1858224.2708,"kali_year":5088,"ayanamsa_lahiri":23.6673,"grahas":{"sun":{"sidereal_longitude":149.223316,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":301.507616,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false,"latitude":-3.9052},"mars":{"sidereal_longitude":265.4839159999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":158.081816,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":324.31941600000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":193.68081600000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":220.305516,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":2.3357,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":182.3357,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","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":1986,"month":9,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446689.770833,"kali_year":5088,"ahargana":1858224.2708,"sun":{"sidereal_longitude":148.5263,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":302.1027,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":153.5764,"elapsed_within_tithi_degrees":9.5764},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3,"moon_longitude":302.1027,"elapsed_within_degrees":8.7694},"yoga":{"number":7,"name":"Sukarma","sum_longitude":90.629},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.905,"elongation":153.576},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.905,"opposition_distance":26.424}},"eclipse_window_40days":[{"offset_days":18,"type":"solar","occurs":true,"moon_latitude":1.033,"elongation":1.957}]},"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":"06:01","sunsetLocal":"18:21","solarNoonLocal":"12:11","dayLengthHours":12.346770361045808,"dayLengthDisplay":"12 Hours 20 Mins 48 Secs","nightLengthDisplay":"11 Hours 39 Mins 12 Secs","moonriseLocal":"16:48","moonsetLocal":"03:52","rahuKala":{"name":"Rāhu Kāla","start":"15:16","end":"16:49","startHours":15.271047406415972,"endHours":16.8143937015467,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:06","end":"10:38","startHours":9.097662225893068,"endHours":10.641008521023794,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:11","end":"13:44","startHours":12.18435481615452,"endHours":13.727701111285246,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.891882719875639,"endHours":9.303441731910498,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:32","end":"06:51","startHours":6.525418400675191,"endHours":6.854665610303079,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:36","startHours":11.77279580411966,"endHours":12.595913828189381,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:22","end":"05:11","startHours":4.364733587492175,"endHours":5.187851611561896,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:59","end":"06:01","startHours":4.982072105544465,"endHours":6.010969635631616,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:15","end":"15:04","startHours":14.242149876328822,"endHours":15.065267900398544,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:09","end":"18:33","startHours":18.157739996677424,"endHours":18.557739996677423,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:21","end":"18:52","startHours":18.357739996677424,"endHours":18.872188761721,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:06","end":"19:51","startHours":18.107739996677424,"endHours":19.857739996677424,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:36","startHours":23.77279580411966,"endHours":24.59591382818938,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:01","end":"07:33","startHours":6.010969635631616,"endHours":7.554315930762342,"quality":"inauspicious"},{"name":"Udveg","start":"07:33","end":"09:06","startHours":7.554315930762342,"endHours":9.097662225893068,"quality":"inauspicious"},{"name":"Chala","start":"09:06","end":"10:38","startHours":9.097662225893068,"endHours":10.641008521023794,"quality":"neutral"},{"name":"Labha","start":"10:38","end":"12:11","startHours":10.641008521023794,"endHours":12.18435481615452,"quality":"auspicious"},{"name":"Amṛta","start":"12:11","end":"13:44","startHours":12.18435481615452,"endHours":13.727701111285246,"quality":"auspicious"},{"name":"Kāla","start":"13:44","end":"15:16","startHours":13.727701111285246,"endHours":15.271047406415972,"quality":"inauspicious"},{"name":"Śubha","start":"15:16","end":"16:49","startHours":15.271047406415972,"endHours":16.8143937015467,"quality":"auspicious"},{"name":"Roga","start":"16:49","end":"18:21","startHours":16.8143937015467,"endHours":18.357739996677424,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:21","end":"19:49","startHours":18.357739996677424,"endHours":19.8143937015467,"quality":"inauspicious"},{"name":"Śubha","start":"19:49","end":"21:16","startHours":19.8143937015467,"endHours":21.27104740641597,"quality":"auspicious"},{"name":"Roga","start":"21:16","end":"22:44","startHours":21.27104740641597,"endHours":22.727701111285246,"quality":"inauspicious"},{"name":"Udveg","start":"22:44","end":"00:11","startHours":22.727701111285246,"endHours":24.18435481615452,"quality":"inauspicious"},{"name":"Chala","start":"00:11","end":"01:38","startHours":24.18435481615452,"endHours":25.641008521023792,"quality":"neutral"},{"name":"Labha","start":"01:38","end":"03:06","startHours":25.641008521023792,"endHours":27.097662225893068,"quality":"auspicious"},{"name":"Amṛta","start":"03:06","end":"04:33","startHours":27.097662225893068,"endHours":28.554315930762343,"quality":"auspicious"},{"name":"Kāla","start":"04:33","end":"06:01","startHours":28.554315930762343,"endHours":30.010969635631618,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:01","end":"07:01","startHours":6.010969635631616,"endHours":7.010969635631616,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:01","end":"08:01","startHours":7.010969635631616,"endHours":8.010969635631616,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:01","end":"09:01","startHours":8.010969635631616,"endHours":9.010969635631616,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:01","end":"10:01","startHours":9.010969635631616,"endHours":10.010969635631616,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:01","end":"11:01","startHours":10.010969635631616,"endHours":11.010969635631616,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:01","end":"12:01","startHours":11.010969635631616,"endHours":12.010969635631616,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:01","end":"13:01","startHours":12.010969635631616,"endHours":13.010969635631616,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:01","end":"14:01","startHours":13.010969635631616,"endHours":14.010969635631616,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:01","end":"15:01","startHours":14.010969635631616,"endHours":15.010969635631616,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:01","end":"16:01","startHours":15.010969635631616,"endHours":16.010969635631618,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:01","end":"17:01","startHours":16.010969635631618,"endHours":17.010969635631618,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:01","end":"18:01","startHours":17.010969635631618,"endHours":18.010969635631618,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:01","end":"19:01","startHours":18.010969635631618,"endHours":19.010969635631618,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:01","end":"20:01","startHours":19.010969635631618,"endHours":20.010969635631618,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:01","end":"21:01","startHours":20.010969635631618,"endHours":21.010969635631618,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:01","end":"22:01","startHours":21.010969635631618,"endHours":22.010969635631618,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:01","end":"23:01","startHours":22.010969635631618,"endHours":23.010969635631618,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:01","end":"00:01","startHours":23.010969635631618,"endHours":24.010969635631618,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:01","end":"01:01","startHours":24.010969635631618,"endHours":25.010969635631618,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:01","end":"02:01","startHours":25.010969635631618,"endHours":26.010969635631618,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:01","end":"03:01","startHours":26.010969635631618,"endHours":27.010969635631618,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:01","end":"04:01","startHours":27.010969635631618,"endHours":28.010969635631618,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:01","end":"05:01","startHours":28.010969635631618,"endHours":29.010969635631618,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:01","end":"06:01","startHours":29.010969635631618,"endHours":30.010969635631618,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":2.821522747260795,"eotMinutes":5.868311030728706,"ayanamsa":23.6673}},"calendars":{"vikram_samvat":2043,"vikram_samvatsara":"Pramāthi","saka_samvat":1908,"saka_samvatsara":"Akṣaya","bengali_samvat":1393,"malayalam_era":1162,"nanakshahi_year":517,"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":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Trayodaśī · Vikram 2043 Pramāthi · Śaka 1908 Akṣaya"},"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":"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 September 16, 1986 CE · Ṛṣikeśa · Vidhyamitra","description":"September 16, 1986 CE for Ṛṣikeśa: Śukla Trayodaśī, sūryodaya 06:01, sūryāsta 18:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1986-09-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1986-09-16","sa":"https://sa.vidhyamitra.com/city/rishikesh/1986-09-16","hi":"https://hi.vidhyamitra.com/city/rishikesh/1986-09-16","x-default":"https://vidhyamitra.com/city/rishikesh/1986-09-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T12:33:22.890Z","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":"2026-05-31T12:33:22.890Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T12:33:22.890Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}