{"id":"vidhyamitra:city-day:rishikesh:1986-09-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1986-09-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1986-09-01","date_display":"September 1, 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":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446674.770833,"kali_year":5088,"ahargana":1858209.2708,"sun":{"sidereal_longitude":134.0024,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":94.7891,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":320.7867,"elapsed_within_tithi_degrees":8.7867},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":94.7891,"elapsed_within_degrees":1.4558},"yoga":{"number":18,"name":"Varīyān","sum_longitude":228.7915},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446674.770833,"ahargana":1858209.2708,"kali_year":5088,"ayanamsa_lahiri":23.6667,"grahas":{"sun":{"sidereal_longitude":134.65648900000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":96.280889,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false,"latitude":4.4981},"mars":{"sidereal_longitude":260.536289,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":130.289689,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":326.2990890000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":180.82138899999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":219.55048899999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":3.1305,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":183.1305,"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":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446674.770833,"kali_year":5088,"ahargana":1858209.2708,"sun":{"sidereal_longitude":134.0024,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":94.7891,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":320.7867,"elapsed_within_tithi_degrees":8.7867},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":94.7891,"elapsed_within_degrees":1.4558},"yoga":{"number":18,"name":"Varīyān","sum_longitude":228.7915},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.498,"elongation":39.213},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.498,"opposition_distance":140.787}},"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":"05:53","sunsetLocal":"18:40","solarNoonLocal":"12:16","dayLengthHours":12.788537427870494,"dayLengthDisplay":"12 Hours 47 Mins 19 Secs","nightLengthDisplay":"11 Hours 12 Mins 41 Secs","moonriseLocal":"02:51","moonsetLocal":"16:35","rahuKala":{"name":"Rāhu Kāla","start":"07:29","end":"09:05","startHours":7.478524834364008,"endHours":9.077092012847821,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:41","end":"12:16","startHours":10.675659191331633,"endHours":12.274226369815445,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:52","end":"15:28","startHours":13.872793548299256,"endHours":15.471360726783068,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:17","startHours":8.863949722383312,"endHours":9.290234303312328,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:25","end":"06:45","startHours":6.412813382041467,"endHours":6.75384104678468,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:42","startHours":11.847941788886429,"endHours":12.70051095074446,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"05:02","startHours":4.17481933216413,"endHours":5.027388494022164,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:49","end":"05:53","startHours":4.814246203557655,"endHours":5.8799576558801965,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:24","end":"15:15","startHours":14.405649274460526,"endHours":15.25821843631856,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:28","end":"18:52","startHours":18.468495083750692,"endHours":18.86849508375069,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:40","end":"19:12","startHours":18.668495083750692,"endHours":19.20135080991196,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:25","end":"20:10","startHours":18.418495083750692,"endHours":20.168495083750692,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:42","startHours":23.847941788886427,"endHours":24.700510950744462,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:53","end":"07:29","startHours":5.8799576558801965,"endHours":7.478524834364008,"quality":"auspicious"},{"name":"Kāla","start":"07:29","end":"09:05","startHours":7.478524834364008,"endHours":9.077092012847821,"quality":"inauspicious"},{"name":"Śubha","start":"09:05","end":"10:41","startHours":9.077092012847821,"endHours":10.675659191331633,"quality":"auspicious"},{"name":"Roga","start":"10:41","end":"12:16","startHours":10.675659191331633,"endHours":12.274226369815445,"quality":"inauspicious"},{"name":"Udveg","start":"12:16","end":"13:52","startHours":12.274226369815445,"endHours":13.872793548299256,"quality":"inauspicious"},{"name":"Chala","start":"13:52","end":"15:28","startHours":13.872793548299256,"endHours":15.471360726783068,"quality":"neutral"},{"name":"Labha","start":"15:28","end":"17:04","startHours":15.471360726783068,"endHours":17.06992790526688,"quality":"auspicious"},{"name":"Amṛta","start":"17:04","end":"18:40","startHours":17.06992790526688,"endHours":18.668495083750692,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:40","end":"20:04","startHours":18.668495083750692,"endHours":20.06992790526688,"quality":"neutral"},{"name":"Labha","start":"20:04","end":"21:28","startHours":20.06992790526688,"endHours":21.471360726783068,"quality":"auspicious"},{"name":"Amṛta","start":"21:28","end":"22:52","startHours":21.471360726783068,"endHours":22.872793548299256,"quality":"auspicious"},{"name":"Kāla","start":"22:52","end":"00:16","startHours":22.872793548299256,"endHours":24.274226369815445,"quality":"inauspicious"},{"name":"Śubha","start":"00:16","end":"01:41","startHours":24.274226369815445,"endHours":25.675659191331633,"quality":"auspicious"},{"name":"Roga","start":"01:41","end":"03:05","startHours":25.675659191331633,"endHours":27.07709201284782,"quality":"inauspicious"},{"name":"Udveg","start":"03:05","end":"04:29","startHours":27.07709201284782,"endHours":28.47852483436401,"quality":"inauspicious"},{"name":"Chala","start":"04:29","end":"05:53","startHours":28.47852483436401,"endHours":29.879957655880197,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:53","end":"06:53","startHours":5.8799576558801965,"endHours":6.8799576558801965,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:53","end":"07:53","startHours":6.8799576558801965,"endHours":7.8799576558801965,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:53","end":"08:53","startHours":7.8799576558801965,"endHours":8.879957655880197,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:53","end":"09:53","startHours":8.879957655880197,"endHours":9.879957655880197,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:53","end":"10:53","startHours":9.879957655880197,"endHours":10.879957655880197,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:53","end":"11:53","startHours":10.879957655880197,"endHours":11.879957655880197,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:53","end":"12:53","startHours":11.879957655880197,"endHours":12.879957655880197,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:53","end":"13:53","startHours":12.879957655880197,"endHours":13.879957655880197,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:53","end":"14:53","startHours":13.879957655880197,"endHours":14.879957655880197,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:53","end":"15:53","startHours":14.879957655880197,"endHours":15.879957655880197,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:53","end":"16:53","startHours":15.879957655880197,"endHours":16.879957655880197,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:53","end":"17:53","startHours":16.879957655880197,"endHours":17.879957655880197,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:53","end":"18:53","startHours":17.879957655880197,"endHours":18.879957655880197,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:53","end":"19:53","startHours":18.879957655880197,"endHours":19.879957655880197,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:53","end":"20:53","startHours":19.879957655880197,"endHours":20.879957655880197,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:53","end":"21:53","startHours":20.879957655880197,"endHours":21.879957655880197,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:53","end":"22:53","startHours":21.879957655880197,"endHours":22.879957655880197,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:53","end":"23:53","startHours":22.879957655880197,"endHours":23.879957655880197,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:53","end":"00:53","startHours":23.879957655880197,"endHours":24.879957655880197,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:53","end":"01:53","startHours":24.879957655880197,"endHours":25.879957655880197,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:53","end":"02:53","startHours":25.879957655880197,"endHours":26.879957655880197,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:53","end":"03:53","startHours":26.879957655880197,"endHours":27.879957655880197,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:53","end":"04:53","startHours":27.879957655880197,"endHours":28.879957655880197,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:53","end":"05:53","startHours":28.879957655880197,"endHours":29.879957655880197,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":8.447939951465864,"eotMinutes":0.47601781107335894,"ayanamsa":23.6667}},"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 Kṛṣṇa Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Dvādaśī · Vikram 2043 Pramāthi · Śaka 1908 Akṣaya"},"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":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 1, 1986 CE · Ṛṣikeśa · Vidhyamitra","description":"September 1, 1986 CE for Ṛṣikeśa: Kṛṣṇa Dvādaśī, sūryodaya 05:53, sūryāsta 18:40.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1986-09-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1986-09-01","sa":"https://sa.vidhyamitra.com/city/rishikesh/1986-09-01","hi":"https://hi.vidhyamitra.com/city/rishikesh/1986-09-01","x-default":"https://vidhyamitra.com/city/rishikesh/1986-09-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T01:05:54.240Z","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":"2026-05-18T01:05:54.240Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T01:05:54.240Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}