{"id":"vidhyamitra:city-day:rishikesh:2008-12-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2008-12-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2008-12-10","date_display":"December 10, 2008 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":2008,"month":12,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2454810.770833,"kali_year":5110,"ahargana":1866345.2708,"sun":{"sidereal_longitude":233.9244,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":18.1978,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":144.2734,"elapsed_within_tithi_degrees":0.2734},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":18.1978,"elapsed_within_degrees":4.8644},"yoga":{"number":19,"name":"Parigha","sum_longitude":252.1222},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2008,"month":12,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2454810.770833,"ahargana":1866345.2708,"kali_year":5110,"ayanamsa_lahiri":23.9779,"grahas":{"sun":{"sidereal_longitude":234.37233400000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":16.919234000000017,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false,"latitude":4.4898},"mars":{"sidereal_longitude":233.075734,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":242.1859340000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":270.569934,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":278.28573400000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":147.14623400000005,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":292.0461,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":112.0461,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":2008,"month":12,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2454810.770833,"kali_year":5110,"ahargana":1866345.2708,"sun":{"sidereal_longitude":233.9244,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":18.1978,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":144.2734,"elapsed_within_tithi_degrees":0.2734},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":18.1978,"elapsed_within_degrees":4.8644},"yoga":{"number":19,"name":"Parigha","sum_longitude":252.1222},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.49,"elongation":144.273},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.49,"opposition_distance":35.727}},"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":"07:03","sunsetLocal":"17:18","solarNoonLocal":"12:10","dayLengthHours":10.25214881433224,"dayLengthDisplay":"10 Hours 15 Mins 08 Secs","nightLengthDisplay":"13 Hours 44 Mins 52 Secs","moonriseLocal":"15:02","moonsetLocal":"04:19","rahuKala":{"name":"Rāhu Kāla","start":"12:10","end":"13:27","startHours":12.174993134362413,"endHours":13.456511736153946,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:20","end":"09:37","startHours":8.330437328987824,"endHours":9.611955930779354,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:54","end":"12:10","startHours":10.893474532570885,"endHours":12.174993134362413,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:47","startHours":9.441086783873818,"endHours":9.78282507768489,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:29","end":"07:45","startHours":7.476091594460137,"endHours":7.749482229508997,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:31","startHours":11.83325484055134,"endHours":12.51673142817349,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:41","end":"06:22","startHours":5.681965551951995,"endHours":6.365442139574144,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:12","end":"07:03","startHours":6.194572992668607,"endHours":7.048918727196294,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:53","end":"14:34","startHours":13.883684603417787,"endHours":14.567161191039936,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:06","end":"17:30","startHours":17.101067541528536,"endHours":17.501067541528535,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:18","end":"17:44","startHours":17.301067541528536,"endHours":17.728240408792377,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:03","end":"18:48","startHours":17.051067541528536,"endHours":18.801067541528536,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:31","startHours":23.83325484055134,"endHours":24.516731428173493,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:03","end":"08:20","startHours":7.048918727196294,"endHours":8.330437328987824,"quality":"auspicious"},{"name":"Amṛta","start":"08:20","end":"09:37","startHours":8.330437328987824,"endHours":9.611955930779354,"quality":"auspicious"},{"name":"Kāla","start":"09:37","end":"10:54","startHours":9.611955930779354,"endHours":10.893474532570885,"quality":"inauspicious"},{"name":"Śubha","start":"10:54","end":"12:10","startHours":10.893474532570885,"endHours":12.174993134362413,"quality":"auspicious"},{"name":"Roga","start":"12:10","end":"13:27","startHours":12.174993134362413,"endHours":13.456511736153946,"quality":"inauspicious"},{"name":"Udveg","start":"13:27","end":"14:44","startHours":13.456511736153946,"endHours":14.738030337945474,"quality":"inauspicious"},{"name":"Chala","start":"14:44","end":"16:01","startHours":14.738030337945474,"endHours":16.019548939737003,"quality":"neutral"},{"name":"Labha","start":"16:01","end":"17:18","startHours":16.019548939737003,"endHours":17.301067541528536,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:18","end":"19:01","startHours":17.301067541528536,"endHours":19.019548939737007,"quality":"inauspicious"},{"name":"Chala","start":"19:01","end":"20:44","startHours":19.019548939737007,"endHours":20.738030337945474,"quality":"neutral"},{"name":"Labha","start":"20:44","end":"22:27","startHours":20.738030337945474,"endHours":22.456511736153946,"quality":"auspicious"},{"name":"Amṛta","start":"22:27","end":"00:10","startHours":22.456511736153946,"endHours":24.174993134362417,"quality":"auspicious"},{"name":"Kāla","start":"00:10","end":"01:54","startHours":24.174993134362417,"endHours":25.893474532570885,"quality":"inauspicious"},{"name":"Śubha","start":"01:54","end":"03:37","startHours":25.893474532570885,"endHours":27.611955930779356,"quality":"auspicious"},{"name":"Roga","start":"03:37","end":"05:20","startHours":27.611955930779356,"endHours":29.330437328987827,"quality":"inauspicious"},{"name":"Udveg","start":"05:20","end":"07:03","startHours":29.330437328987827,"endHours":31.048918727196295,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:03","end":"08:03","startHours":7.048918727196294,"endHours":8.048918727196295,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:03","end":"09:03","startHours":8.048918727196295,"endHours":9.048918727196295,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:03","end":"10:03","startHours":9.048918727196295,"endHours":10.048918727196295,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:03","end":"11:03","startHours":10.048918727196295,"endHours":11.048918727196295,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:03","end":"12:03","startHours":11.048918727196295,"endHours":12.048918727196295,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:03","end":"13:03","startHours":12.048918727196295,"endHours":13.048918727196295,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:03","end":"14:03","startHours":13.048918727196295,"endHours":14.048918727196295,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:03","end":"15:03","startHours":14.048918727196295,"endHours":15.048918727196295,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:03","end":"16:03","startHours":15.048918727196295,"endHours":16.048918727196295,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:03","end":"17:03","startHours":16.048918727196295,"endHours":17.048918727196295,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:03","end":"18:03","startHours":17.048918727196295,"endHours":18.048918727196295,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:03","end":"19:03","startHours":18.048918727196295,"endHours":19.048918727196295,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:03","end":"20:03","startHours":19.048918727196295,"endHours":20.048918727196295,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:03","end":"21:03","startHours":20.048918727196295,"endHours":21.048918727196295,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:03","end":"22:03","startHours":21.048918727196295,"endHours":22.048918727196295,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:03","end":"23:03","startHours":22.048918727196295,"endHours":23.048918727196295,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:03","end":"00:03","startHours":23.048918727196295,"endHours":24.048918727196295,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:03","end":"01:03","startHours":24.048918727196295,"endHours":25.048918727196295,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:03","end":"02:03","startHours":25.048918727196295,"endHours":26.048918727196295,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:03","end":"03:03","startHours":26.048918727196295,"endHours":27.048918727196295,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:03","end":"04:03","startHours":27.048918727196295,"endHours":28.048918727196295,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:03","end":"05:03","startHours":28.048918727196295,"endHours":29.048918727196295,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:03","end":"06:03","startHours":29.048918727196295,"endHours":30.048918727196295,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:03","end":"07:03","startHours":30.048918727196295,"endHours":31.048918727196295,"planetary_lord":"Sun"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"South-West","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-22.925834043401068,"eotMinutes":6.4300119382551255,"ayanamsa":23.9779}},"calendars":{"vikram_samvat":2065,"vikram_samvatsara":"Plava","saka_samvat":1930,"saka_samvatsara":"Sarvadhāri","bengali_samvat":1415,"malayalam_era":1184,"nanakshahi_year":539,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Trayodaśī · Vikram 2065 Plava · Śaka 1930 Sarvadhāri"},"festivals":[{"id":"vrischika-sankranti","name":"Vṛścika Saṅkrānti","name_sanskrit":"वृश्चिक सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Scorpio.","vrata":false,"detection":{"sun_rashi":"Vṛścika"},"precedence":5},{"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":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 December 10, 2008 CE · Ṛṣikeśa · Vidhyamitra","description":"December 10, 2008 CE for Ṛṣikeśa: Śukla Trayodaśī, sūryodaya 07:03, sūryāsta 17:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2008-12-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2008-12-10","sa":"https://sa.vidhyamitra.com/city/rishikesh/2008-12-10","hi":"https://hi.vidhyamitra.com/city/rishikesh/2008-12-10","x-default":"https://vidhyamitra.com/city/rishikesh/2008-12-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T06:10:16.244Z","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":"2026-05-17T06:10:16.244Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T06:10:16.244Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}