{"id":"vidhyamitra:city-day:rishikesh:2109-08-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2109-08-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2109-08-08","date_display":"August 8, 2109 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":2109,"month":8,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2491575.770833,"kali_year":5211,"ahargana":1903110.2708,"sun":{"sidereal_longitude":109.2696,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":255.4779,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.2084,"elapsed_within_tithi_degrees":2.2084},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":255.4779,"elapsed_within_degrees":2.1446},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":4.7475},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2109,"month":8,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2491575.770833,"ahargana":1903110.2708,"kali_year":5211,"ayanamsa_lahiri":25.384,"grahas":{"sun":{"sidereal_longitude":110.10114099999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":255.20494099999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false,"latitude":4.1886},"mars":{"sidereal_longitude":88.86744099999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":134.703941,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":101.59444100000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"venus":{"sidereal_longitude":148.20694100000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":280.31054100000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":144.0594,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":324.0594,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"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":2109,"month":8,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2491575.770833,"kali_year":5211,"ahargana":1903110.2708,"sun":{"sidereal_longitude":109.2696,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":255.4779,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.2084,"elapsed_within_tithi_degrees":2.2084},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":255.4779,"elapsed_within_degrees":2.1446},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":4.7475},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.189,"elongation":146.208},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.189,"opposition_distance":33.792}},"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":"05:39","sunsetLocal":"19:05","solarNoonLocal":"12:22","dayLengthHours":13.427127996927666,"dayLengthDisplay":"13 Hours 25 Mins 38 Secs","nightLengthDisplay":"10 Hours 34 Mins 22 Secs","moonriseLocal":"16:57","moonsetLocal":"03:09","rahuKala":{"name":"Rāhu Kāla","start":"14:03","end":"15:44","startHours":14.049702286941674,"endHours":15.72809328655763,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:39","end":"07:20","startHours":5.657747288861882,"endHours":7.33613828847784,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:01","end":"10:42","startHours":9.014529288093797,"endHours":10.692920287709757,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:47","end":"09:14","startHours":8.790743821478337,"endHours":9.23831475470926,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:13","end":"06:35","startHours":6.217210955400534,"endHours":6.575267701985272,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:49","startHours":11.923740354094791,"endHours":12.818882220556636,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:52","end":"04:46","startHours":3.8674635559381927,"endHours":4.762605422400037,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:32","end":"05:39","startHours":4.538819955784576,"endHours":5.657747288861882,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:37","end":"15:30","startHours":14.609165953480325,"endHours":15.50430781994217,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:53","end":"19:17","startHours":18.884875285789548,"endHours":19.284875285789546,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:05","end":"19:39","startHours":19.084875285789547,"endHours":19.644338952328198,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:50","end":"20:35","startHours":18.834875285789547,"endHours":20.584875285789547,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:49","startHours":23.923740354094793,"endHours":24.818882220556635,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:39","end":"07:20","startHours":5.657747288861882,"endHours":7.33613828847784,"quality":"auspicious"},{"name":"Roga","start":"07:20","end":"09:01","startHours":7.33613828847784,"endHours":9.014529288093797,"quality":"inauspicious"},{"name":"Udveg","start":"09:01","end":"10:42","startHours":9.014529288093797,"endHours":10.692920287709757,"quality":"inauspicious"},{"name":"Chala","start":"10:42","end":"12:22","startHours":10.692920287709757,"endHours":12.371311287325714,"quality":"neutral"},{"name":"Labha","start":"12:22","end":"14:03","startHours":12.371311287325714,"endHours":14.049702286941674,"quality":"auspicious"},{"name":"Amṛta","start":"14:03","end":"15:44","startHours":14.049702286941674,"endHours":15.72809328655763,"quality":"auspicious"},{"name":"Kāla","start":"15:44","end":"17:24","startHours":15.72809328655763,"endHours":17.40648428617359,"quality":"inauspicious"},{"name":"Śubha","start":"17:24","end":"19:05","startHours":17.40648428617359,"endHours":19.084875285789547,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:05","end":"20:24","startHours":19.084875285789547,"endHours":20.406484286173587,"quality":"auspicious"},{"name":"Kāla","start":"20:24","end":"21:44","startHours":20.406484286173587,"endHours":21.72809328655763,"quality":"inauspicious"},{"name":"Śubha","start":"21:44","end":"23:03","startHours":21.72809328655763,"endHours":23.049702286941674,"quality":"auspicious"},{"name":"Roga","start":"23:03","end":"00:22","startHours":23.049702286941674,"endHours":24.371311287325714,"quality":"inauspicious"},{"name":"Udveg","start":"00:22","end":"01:42","startHours":24.371311287325714,"endHours":25.692920287709754,"quality":"inauspicious"},{"name":"Chala","start":"01:42","end":"03:01","startHours":25.692920287709754,"endHours":27.014529288093797,"quality":"neutral"},{"name":"Labha","start":"03:01","end":"04:20","startHours":27.014529288093797,"endHours":28.33613828847784,"quality":"auspicious"},{"name":"Amṛta","start":"04:20","end":"05:39","startHours":28.33613828847784,"endHours":29.65774728886188,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:39","end":"06:39","startHours":5.657747288861882,"endHours":6.657747288861882,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:39","end":"07:39","startHours":6.657747288861882,"endHours":7.657747288861882,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:39","end":"08:39","startHours":7.657747288861882,"endHours":8.65774728886188,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:39","end":"09:39","startHours":8.65774728886188,"endHours":9.65774728886188,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:39","end":"10:39","startHours":9.65774728886188,"endHours":10.65774728886188,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:39","end":"11:39","startHours":10.65774728886188,"endHours":11.65774728886188,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:39","end":"12:39","startHours":11.65774728886188,"endHours":12.65774728886188,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:39","end":"13:39","startHours":12.65774728886188,"endHours":13.65774728886188,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:39","end":"14:39","startHours":13.65774728886188,"endHours":14.65774728886188,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:39","end":"15:39","startHours":14.65774728886188,"endHours":15.65774728886188,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:39","end":"16:39","startHours":15.65774728886188,"endHours":16.65774728886188,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:39","end":"17:39","startHours":16.65774728886188,"endHours":17.65774728886188,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:39","end":"18:39","startHours":17.65774728886188,"endHours":18.65774728886188,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:39","end":"19:39","startHours":18.65774728886188,"endHours":19.65774728886188,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:39","end":"20:39","startHours":19.65774728886188,"endHours":20.65774728886188,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:39","end":"21:39","startHours":20.65774728886188,"endHours":21.65774728886188,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:39","end":"22:39","startHours":21.65774728886188,"endHours":22.65774728886188,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:39","end":"23:39","startHours":22.65774728886188,"endHours":23.65774728886188,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:39","end":"00:39","startHours":23.65774728886188,"endHours":24.65774728886188,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:39","end":"01:39","startHours":24.65774728886188,"endHours":25.65774728886188,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:39","end":"02:39","startHours":25.65774728886188,"endHours":26.65774728886188,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:39","end":"03:39","startHours":26.65774728886188,"endHours":27.65774728886188,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:39","end":"04:39","startHours":27.65774728886188,"endHours":28.65774728886188,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:39","end":"05:39","startHours":28.65774728886188,"endHours":29.65774728886188,"planetary_lord":"Moon"}],"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","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":16.191457443759205,"eotMinutes":-5.349077239542768,"ayanamsa":25.384}},"calendars":{"vikram_samvat":2166,"vikram_samvatsara":"Citrabhānu","saka_samvat":2031,"saka_samvatsara":"Śukla","bengali_samvat":1516,"malayalam_era":1285,"nanakshahi_year":640,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Trayodaśī · Vikram 2166 Citrabhānu · Śaka 2031 Śukla"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2},{"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":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 August 8, 2109 CE · Ṛṣikeśa · Vidhyamitra","description":"August 8, 2109 CE for Ṛṣikeśa: Śukla Trayodaśī, sūryodaya 05:39, sūryāsta 19:05.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2109-08-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2109-08-08","sa":"https://sa.vidhyamitra.com/city/rishikesh/2109-08-08","hi":"https://hi.vidhyamitra.com/city/rishikesh/2109-08-08","x-default":"https://vidhyamitra.com/city/rishikesh/2109-08-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T22:22:12.096Z","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":"2026-05-21T22:22:12.096Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T22:22:12.096Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}