{"id":"vidhyamitra:city-day:rishikesh:2013-09-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2013-09-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2013-09-06","date_display":"September 6, 2013 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":2013,"month":9,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456541.770833,"kali_year":5115,"ahargana":1868076.2708,"sun":{"sidereal_longitude":138.842,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":145.1399,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":6.2979,"elapsed_within_tithi_degrees":6.2979},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":145.1399,"elapsed_within_degrees":11.8066},"yoga":{"number":22,"name":"Sādhya","sum_longitude":283.9819},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2013,"month":9,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456541.770833,"ahargana":1868076.2708,"kali_year":5115,"ayanamsa_lahiri":24.0441,"grahas":{"sun":{"sidereal_longitude":139.57849700000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":146.11989699999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false,"latitude":-3.6935},"mars":{"sidereal_longitude":101.497097,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":150.16209700000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":80.25779699999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"venus":{"sidereal_longitude":179.73069699999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":193.26479700000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":200.3294,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":20.3294,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":2013,"month":9,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456541.770833,"kali_year":5115,"ahargana":1868076.2708,"sun":{"sidereal_longitude":138.842,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":145.1399,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":6.2979,"elapsed_within_tithi_degrees":6.2979},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":145.1399,"elapsed_within_degrees":11.8066},"yoga":{"number":22,"name":"Sādhya","sum_longitude":283.9819},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.693,"elongation":6.298},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.693,"opposition_distance":173.702}},"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":"05:56","sunsetLocal":"18:34","solarNoonLocal":"12:15","dayLengthHours":12.629402645920852,"dayLengthDisplay":"12 Hours 37 Mins 46 Secs","nightLengthDisplay":"11 Hours 22 Mins 14 Secs","moonriseLocal":"06:29","moonsetLocal":"18:53","rahuKala":{"name":"Rāhu Kāla","start":"10:40","end":"12:15","startHours":10.666801207342552,"endHours":12.245476538082656,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:24","end":"16:59","startHours":15.402827199562871,"endHours":16.981502530302976,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:31","end":"09:05","startHours":7.509450545862338,"endHours":9.088125876602444,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:18","startHours":8.877635832503763,"endHours":9.298615920701124,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:27","end":"06:48","startHours":6.4570003253689325,"endHours":6.793784395926822,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:40","startHours":11.824496449885295,"endHours":12.66645662628002,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:15","end":"05:05","startHours":4.246854862332784,"endHours":5.088815038727508,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:53","end":"05:56","startHours":4.8783249946288265,"endHours":5.930775215122231,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:21","end":"15:12","startHours":14.350376979069466,"endHours":15.19233715546419,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:22","end":"18:46","startHours":18.360177861043084,"endHours":18.760177861043083,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:34","end":"19:05","startHours":18.560177861043083,"endHours":19.086402971289786,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:19","end":"20:04","startHours":18.310177861043083,"endHours":20.060177861043083,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:40","startHours":23.824496449885295,"endHours":24.666456626280016,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:56","end":"07:31","startHours":5.930775215122231,"endHours":7.509450545862338,"quality":"neutral"},{"name":"Labha","start":"07:31","end":"09:05","startHours":7.509450545862338,"endHours":9.088125876602444,"quality":"auspicious"},{"name":"Amṛta","start":"09:05","end":"10:40","startHours":9.088125876602444,"endHours":10.666801207342552,"quality":"auspicious"},{"name":"Kāla","start":"10:40","end":"12:15","startHours":10.666801207342552,"endHours":12.245476538082656,"quality":"inauspicious"},{"name":"Śubha","start":"12:15","end":"13:49","startHours":12.245476538082656,"endHours":13.824151868822764,"quality":"auspicious"},{"name":"Roga","start":"13:49","end":"15:24","startHours":13.824151868822764,"endHours":15.402827199562871,"quality":"inauspicious"},{"name":"Udveg","start":"15:24","end":"16:59","startHours":15.402827199562871,"endHours":16.981502530302976,"quality":"inauspicious"},{"name":"Chala","start":"16:59","end":"18:34","startHours":16.981502530302976,"endHours":18.560177861043083,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:34","end":"19:59","startHours":18.560177861043083,"endHours":19.981502530302976,"quality":"inauspicious"},{"name":"Udveg","start":"19:59","end":"21:24","startHours":19.981502530302976,"endHours":21.40282719956287,"quality":"inauspicious"},{"name":"Chala","start":"21:24","end":"22:49","startHours":21.40282719956287,"endHours":22.824151868822764,"quality":"neutral"},{"name":"Labha","start":"22:49","end":"00:15","startHours":22.824151868822764,"endHours":24.245476538082656,"quality":"auspicious"},{"name":"Amṛta","start":"00:15","end":"01:40","startHours":24.245476538082656,"endHours":25.66680120734255,"quality":"auspicious"},{"name":"Kāla","start":"01:40","end":"03:05","startHours":25.66680120734255,"endHours":27.088125876602444,"quality":"inauspicious"},{"name":"Śubha","start":"03:05","end":"04:31","startHours":27.088125876602444,"endHours":28.509450545862336,"quality":"auspicious"},{"name":"Roga","start":"04:31","end":"05:56","startHours":28.509450545862336,"endHours":29.93077521512223,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:56","end":"06:56","startHours":5.930775215122231,"endHours":6.930775215122231,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:56","end":"07:56","startHours":6.930775215122231,"endHours":7.930775215122231,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:56","end":"08:56","startHours":7.930775215122231,"endHours":8.930775215122232,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:56","end":"09:56","startHours":8.930775215122232,"endHours":9.930775215122232,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:56","end":"10:56","startHours":9.930775215122232,"endHours":10.930775215122232,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:56","end":"11:56","startHours":10.930775215122232,"endHours":11.930775215122232,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:56","end":"12:56","startHours":11.930775215122232,"endHours":12.930775215122232,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:56","end":"13:56","startHours":12.930775215122232,"endHours":13.930775215122232,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:56","end":"14:56","startHours":13.930775215122232,"endHours":14.930775215122232,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:56","end":"15:56","startHours":14.930775215122232,"endHours":15.930775215122232,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:56","end":"16:56","startHours":15.930775215122232,"endHours":16.93077521512223,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:56","end":"17:56","startHours":16.93077521512223,"endHours":17.93077521512223,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:56","end":"18:56","startHours":17.93077521512223,"endHours":18.93077521512223,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:56","end":"19:56","startHours":18.93077521512223,"endHours":19.93077521512223,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:56","end":"20:56","startHours":19.93077521512223,"endHours":20.93077521512223,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:56","end":"21:56","startHours":20.93077521512223,"endHours":21.93077521512223,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:56","end":"22:56","startHours":21.93077521512223,"endHours":22.93077521512223,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:56","end":"23:56","startHours":22.93077521512223,"endHours":23.93077521512223,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:56","end":"00:56","startHours":23.93077521512223,"endHours":24.93077521512223,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:56","end":"01:56","startHours":24.93077521512223,"endHours":25.93077521512223,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:56","end":"02:56","startHours":25.93077521512223,"endHours":26.93077521512223,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:56","end":"03:56","startHours":26.93077521512223,"endHours":27.93077521512223,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:56","end":"04:56","startHours":27.93077521512223,"endHours":28.93077521512223,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:56","end":"05:56","startHours":28.93077521512223,"endHours":29.93077521512223,"planetary_lord":"Mars"}],"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","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"West","rahuVasa":"South-East","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"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":6.4390305990222405,"eotMinutes":2.2010077150405363,"ayanamsa":24.0441}},"calendars":{"vikram_samvat":2070,"vikram_samvatsara":"Parābhava","saka_samvat":1935,"saka_samvatsara":"Vijaya","bengali_samvat":1420,"malayalam_era":1189,"nanakshahi_year":544,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Pratipada · Vikram 2070 Parābhava · Śaka 1935 Vijaya"},"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":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 6, 2013 CE · Ṛṣikeśa · Vidhyamitra","description":"September 6, 2013 CE for Ṛṣikeśa: Śukla Pratipada, sūryodaya 05:56, sūryāsta 18:34.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2013-09-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2013-09-06","sa":"https://sa.vidhyamitra.com/city/rishikesh/2013-09-06","hi":"https://hi.vidhyamitra.com/city/rishikesh/2013-09-06","x-default":"https://vidhyamitra.com/city/rishikesh/2013-09-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-24T09:54:16.249Z","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":"2026-05-24T09:54:16.249Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-24T09:54:16.249Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}