{"id":"vidhyamitra:city-day:rishikesh:2104-02-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2104-02-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2104-02-08","date_display":"February 8, 2104 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":2104,"month":2,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489567.770833,"kali_year":5205,"ahargana":1901102.2708,"sun":{"sidereal_longitude":292.8322,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":77.8817,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":145.0495,"elapsed_within_tithi_degrees":1.0495},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":77.8817,"elapsed_within_degrees":11.2151},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":10.7139},"karana":{"half_tithi_index":24,"name":"Kaulava"},"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":2104,"month":2,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2489567.770833,"ahargana":1901102.2708,"kali_year":5205,"ayanamsa_lahiri":25.3072,"grahas":{"sun":{"sidereal_longitude":293.028061,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"moon":{"sidereal_longitude":78.42046099999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false,"latitude":-0.5812},"mars":{"sidereal_longitude":85.781161,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":290.239461,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":285.35116100000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"venus":{"sidereal_longitude":267.70166100000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":225.54756099999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":250.4529,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":70.4529,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":2104,"month":2,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489567.770833,"kali_year":5205,"ahargana":1901102.2708,"sun":{"sidereal_longitude":292.8322,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":77.8817,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":145.0495,"elapsed_within_tithi_degrees":1.0495},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":77.8817,"elapsed_within_degrees":11.2151},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":10.7139},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.581,"elongation":145.05},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.581,"opposition_distance":34.95}},"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":"07:04","sunsetLocal":"17:59","solarNoonLocal":"12:31","dayLengthHours":10.916013163381994,"dayLengthDisplay":"10 Hours 54 Mins 58 Secs","nightLengthDisplay":"13 Hours 05 Mins 02 Secs","moonriseLocal":"15:14","moonsetLocal":"05:12","rahuKala":{"name":"Rāhu Kāla","start":"11:10","end":"12:31","startHours":11.158441255921616,"endHours":12.522942901344365,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:15","end":"16:37","startHours":15.251946192189866,"endHours":16.616447837612615,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:26","end":"09:48","startHours":8.429437965076119,"endHours":9.793939610498867,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:37","end":"09:59","startHours":9.612006057775833,"endHours":9.9758731632219,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:31","end":"07:49","startHours":7.519770201460952,"endHours":7.810863885817805,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:10","end":"12:53","startHours":12.1590757958983,"endHours":12.886810006790434,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:37","end":"06:20","startHours":5.609467897869103,"endHours":6.337202108761236,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:09","end":"07:04","startHours":6.1552685560382026,"endHours":7.064936319653369,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:21","end":"15:04","startHours":14.342278428574698,"endHours":15.07001263946683,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:47","end":"18:11","startHours":17.780949483035364,"endHours":18.180949483035363,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:59","end":"18:26","startHours":17.980949483035364,"endHours":18.435783364842948,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:44","end":"19:29","startHours":17.730949483035364,"endHours":19.480949483035364,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:10","end":"00:53","startHours":24.1590757958983,"endHours":24.88681000679043,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:04","end":"08:26","startHours":7.064936319653369,"endHours":8.429437965076119,"quality":"neutral"},{"name":"Labha","start":"08:26","end":"09:48","startHours":8.429437965076119,"endHours":9.793939610498867,"quality":"auspicious"},{"name":"Amṛta","start":"09:48","end":"11:10","startHours":9.793939610498867,"endHours":11.158441255921616,"quality":"auspicious"},{"name":"Kāla","start":"11:10","end":"12:31","startHours":11.158441255921616,"endHours":12.522942901344365,"quality":"inauspicious"},{"name":"Śubha","start":"12:31","end":"13:53","startHours":12.522942901344365,"endHours":13.887444546767114,"quality":"auspicious"},{"name":"Roga","start":"13:53","end":"15:15","startHours":13.887444546767114,"endHours":15.251946192189866,"quality":"inauspicious"},{"name":"Udveg","start":"15:15","end":"16:37","startHours":15.251946192189866,"endHours":16.616447837612615,"quality":"inauspicious"},{"name":"Chala","start":"16:37","end":"17:59","startHours":16.616447837612615,"endHours":17.980949483035364,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:59","end":"19:37","startHours":17.980949483035364,"endHours":19.616447837612615,"quality":"inauspicious"},{"name":"Udveg","start":"19:37","end":"21:15","startHours":19.616447837612615,"endHours":21.251946192189866,"quality":"inauspicious"},{"name":"Chala","start":"21:15","end":"22:53","startHours":21.251946192189866,"endHours":22.887444546767114,"quality":"neutral"},{"name":"Labha","start":"22:53","end":"00:31","startHours":22.887444546767114,"endHours":24.522942901344365,"quality":"auspicious"},{"name":"Amṛta","start":"00:31","end":"02:10","startHours":24.522942901344365,"endHours":26.158441255921616,"quality":"auspicious"},{"name":"Kāla","start":"02:10","end":"03:48","startHours":26.158441255921616,"endHours":27.793939610498867,"quality":"inauspicious"},{"name":"Śubha","start":"03:48","end":"05:26","startHours":27.793939610498867,"endHours":29.42943796507612,"quality":"auspicious"},{"name":"Roga","start":"05:26","end":"07:04","startHours":29.42943796507612,"endHours":31.06493631965337,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:04","end":"08:04","startHours":7.064936319653369,"endHours":8.06493631965337,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:04","end":"09:04","startHours":8.06493631965337,"endHours":9.06493631965337,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:04","end":"10:04","startHours":9.06493631965337,"endHours":10.06493631965337,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:04","end":"11:04","startHours":10.06493631965337,"endHours":11.06493631965337,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:04","end":"12:04","startHours":11.06493631965337,"endHours":12.06493631965337,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:04","end":"13:04","startHours":12.06493631965337,"endHours":13.06493631965337,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:04","end":"14:04","startHours":13.06493631965337,"endHours":14.06493631965337,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:04","end":"15:04","startHours":14.06493631965337,"endHours":15.06493631965337,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:04","end":"16:04","startHours":15.06493631965337,"endHours":16.06493631965337,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:04","end":"17:04","startHours":16.06493631965337,"endHours":17.06493631965337,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:04","end":"18:04","startHours":17.06493631965337,"endHours":18.06493631965337,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:04","end":"19:04","startHours":18.06493631965337,"endHours":19.06493631965337,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:04","end":"20:04","startHours":19.06493631965337,"endHours":20.06493631965337,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:04","end":"21:04","startHours":20.06493631965337,"endHours":21.06493631965337,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:04","end":"22:04","startHours":21.06493631965337,"endHours":22.06493631965337,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:04","end":"23:04","startHours":22.06493631965337,"endHours":23.06493631965337,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:04","end":"00:04","startHours":23.06493631965337,"endHours":24.06493631965337,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:04","end":"01:04","startHours":24.06493631965337,"endHours":25.06493631965337,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:04","end":"02:04","startHours":25.06493631965337,"endHours":26.06493631965337,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:04","end":"03:04","startHours":26.06493631965337,"endHours":27.06493631965337,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:04","end":"04:04","startHours":27.06493631965337,"endHours":28.06493631965337,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:04","end":"05:04","startHours":28.06493631965337,"endHours":29.06493631965337,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:04","end":"06:04","startHours":29.06493631965337,"endHours":30.06493631965337,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:04","end":"07:04","startHours":30.06493631965337,"endHours":31.06493631965337,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-15.331357192748754,"eotMinutes":-14.446974080661976,"ayanamsa":25.3072}},"calendars":{"vikram_samvat":2161,"vikram_samvatsara":"Īśvara","saka_samvat":2026,"saka_samvatsara":"Raktākṣī","bengali_samvat":1511,"malayalam_era":1280,"nanakshahi_year":635,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Trayodaśī · Vikram 2161 Īśvara · Śaka 2026 Raktākṣī"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"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":"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 February 8, 2104 CE · Ṛṣikeśa · Vidhyamitra","description":"February 8, 2104 CE for Ṛṣikeśa: Śukla Trayodaśī, sūryodaya 07:04, sūryāsta 17:59.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2104-02-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2104-02-08","sa":"https://sa.vidhyamitra.com/city/rishikesh/2104-02-08","hi":"https://hi.vidhyamitra.com/city/rishikesh/2104-02-08","x-default":"https://vidhyamitra.com/city/rishikesh/2104-02-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T02:46:00.953Z","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":"2026-05-21T02:46:00.953Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T02:46:00.953Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}