{"id":"vidhyamitra:city-day:rishikesh:2026-12-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2026-12-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2026-12-11","date_display":"December 11, 2026 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":2026,"month":12,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461385.770833,"kali_year":5128,"ahargana":1872920.2708,"sun":{"sidereal_longitude":234.2752,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":258.7213,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":24.4461,"elapsed_within_tithi_degrees":0.4461},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2,"moon_longitude":258.7213,"elapsed_within_degrees":5.388},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":132.9966},"karana":{"half_tithi_index":4,"name":"Taitila"},"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":2026,"month":12,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461385.770833,"ahargana":1872920.2708,"kali_year":5128,"ayanamsa_lahiri":24.2294,"grahas":{"sun":{"sidereal_longitude":234.76262100000008,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":256.60282099999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false,"latitude":-3.1775},"mars":{"sidereal_longitude":130.72932100000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":222.451321,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":122.566621,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":190.06892100000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":343.756321,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":303.6709,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":123.6709,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":2026,"month":12,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461385.770833,"kali_year":5128,"ahargana":1872920.2708,"sun":{"sidereal_longitude":234.2752,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":258.7213,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":24.4461,"elapsed_within_tithi_degrees":0.4461},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2,"moon_longitude":258.7213,"elapsed_within_degrees":5.388},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":132.9966},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.178,"elongation":24.446},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.178,"opposition_distance":155.554}},"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":"17:18","solarNoonLocal":"12:11","dayLengthHours":10.24711220028909,"dayLengthDisplay":"10 Hours 14 Mins 50 Secs","nightLengthDisplay":"13 Hours 45 Mins 10 Secs","moonriseLocal":"08:32","moonsetLocal":"18:44","rahuKala":{"name":"Rāhu Kāla","start":"10:54","end":"12:11","startHours":10.901469596888317,"endHours":12.182358621924454,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:45","end":"16:02","startHours":14.744136671996726,"endHours":16.02502569703286,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:20","end":"09:37","startHours":8.339691546816045,"endHours":9.62058057185218,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:27","end":"09:47","startHours":9.449795368514028,"endHours":9.791365775190332,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:29","end":"07:46","startHours":7.485765530125287,"endHours":7.759021855466329,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:31","startHours":11.840788215248152,"endHours":12.523929028600756,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:42","end":"06:23","startHours":5.692520895074696,"endHours":6.375661708427302,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:12","end":"07:04","startHours":6.204876505089151,"endHours":7.058802521779908,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:53","end":"14:34","startHours":13.890210655305967,"endHours":14.573351468658574,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:06","end":"17:30","startHours":17.105914722069,"endHours":17.505914722068997,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:18","end":"17:44","startHours":17.305914722068998,"endHours":17.732877730414376,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:03","end":"18:48","startHours":17.055914722068998,"endHours":18.805914722068998,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:31","startHours":23.84078821524815,"endHours":24.523929028600758,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:04","end":"08:20","startHours":7.058802521779908,"endHours":8.339691546816045,"quality":"neutral"},{"name":"Labha","start":"08:20","end":"09:37","startHours":8.339691546816045,"endHours":9.62058057185218,"quality":"auspicious"},{"name":"Amṛta","start":"09:37","end":"10:54","startHours":9.62058057185218,"endHours":10.901469596888317,"quality":"auspicious"},{"name":"Kāla","start":"10:54","end":"12:11","startHours":10.901469596888317,"endHours":12.182358621924454,"quality":"inauspicious"},{"name":"Śubha","start":"12:11","end":"13:28","startHours":12.182358621924454,"endHours":13.463247646960589,"quality":"auspicious"},{"name":"Roga","start":"13:28","end":"14:45","startHours":13.463247646960589,"endHours":14.744136671996726,"quality":"inauspicious"},{"name":"Udveg","start":"14:45","end":"16:02","startHours":14.744136671996726,"endHours":16.02502569703286,"quality":"inauspicious"},{"name":"Chala","start":"16:02","end":"17:18","startHours":16.02502569703286,"endHours":17.305914722068998,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:18","end":"19:02","startHours":17.305914722068998,"endHours":19.025025697032863,"quality":"inauspicious"},{"name":"Udveg","start":"19:02","end":"20:45","startHours":19.025025697032863,"endHours":20.744136671996724,"quality":"inauspicious"},{"name":"Chala","start":"20:45","end":"22:28","startHours":20.744136671996724,"endHours":22.46324764696059,"quality":"neutral"},{"name":"Labha","start":"22:28","end":"00:11","startHours":22.46324764696059,"endHours":24.182358621924454,"quality":"auspicious"},{"name":"Amṛta","start":"00:11","end":"01:54","startHours":24.182358621924454,"endHours":25.90146959688832,"quality":"auspicious"},{"name":"Kāla","start":"01:54","end":"03:37","startHours":25.90146959688832,"endHours":27.62058057185218,"quality":"inauspicious"},{"name":"Śubha","start":"03:37","end":"05:20","startHours":27.62058057185218,"endHours":29.339691546816045,"quality":"auspicious"},{"name":"Roga","start":"05:20","end":"07:04","startHours":29.339691546816045,"endHours":31.05880252177991,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:04","end":"08:04","startHours":7.058802521779908,"endHours":8.058802521779908,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:04","end":"09:04","startHours":8.058802521779908,"endHours":9.058802521779908,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:04","end":"10:04","startHours":9.058802521779908,"endHours":10.058802521779908,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:04","end":"11:04","startHours":10.058802521779908,"endHours":11.058802521779908,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:04","end":"12:04","startHours":11.058802521779908,"endHours":12.058802521779908,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:04","end":"13:04","startHours":12.058802521779908,"endHours":13.058802521779908,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:04","end":"14:04","startHours":13.058802521779908,"endHours":14.058802521779908,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:04","end":"15:04","startHours":14.058802521779908,"endHours":15.058802521779908,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:04","end":"16:04","startHours":15.058802521779908,"endHours":16.05880252177991,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:04","end":"17:04","startHours":16.05880252177991,"endHours":17.05880252177991,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:04","end":"18:04","startHours":17.05880252177991,"endHours":18.05880252177991,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:04","end":"19:04","startHours":18.05880252177991,"endHours":19.05880252177991,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:04","end":"20:04","startHours":19.05880252177991,"endHours":20.05880252177991,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:04","end":"21:04","startHours":20.05880252177991,"endHours":21.05880252177991,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:04","end":"22:04","startHours":21.05880252177991,"endHours":22.05880252177991,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:04","end":"23:04","startHours":22.05880252177991,"endHours":23.05880252177991,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:04","end":"00:04","startHours":23.05880252177991,"endHours":24.05880252177991,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:04","end":"01:04","startHours":24.05880252177991,"endHours":25.05880252177991,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:04","end":"02:04","startHours":25.05880252177991,"endHours":26.05880252177991,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:04","end":"03:04","startHours":26.05880252177991,"endHours":27.05880252177991,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:04","end":"04:04","startHours":27.05880252177991,"endHours":28.05880252177991,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:04","end":"05:04","startHours":28.05880252177991,"endHours":29.05880252177991,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:04","end":"06:04","startHours":29.05880252177991,"endHours":30.05880252177991,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:04","end":"07:04","startHours":30.05880252177991,"endHours":31.05880252177991,"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","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Maitra","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":-22.980288482526916,"eotMinutes":5.988082684532823,"ayanamsa":24.2294}},"calendars":{"vikram_samvat":2083,"vikram_samvatsara":"Siddhārthī","saka_samvat":1948,"saka_samvatsara":"Parābhava","bengali_samvat":1433,"malayalam_era":1202,"nanakshahi_year":557,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Tṛtīyā · Vikram 2083 Siddhārthī · Śaka 1948 Parābhava"},"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}],"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 December 11, 2026 CE · Ṛṣikeśa · Vidhyamitra","description":"December 11, 2026 CE for Ṛṣikeśa: Śukla Tṛtīyā, sūryodaya 07:04, sūryāsta 17:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2026-12-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2026-12-11","sa":"https://sa.vidhyamitra.com/city/rishikesh/2026-12-11","hi":"https://hi.vidhyamitra.com/city/rishikesh/2026-12-11","x-default":"https://vidhyamitra.com/city/rishikesh/2026-12-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T19:51:57.512Z","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":"2026-05-14T19:51:57.512Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T19:51:57.512Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}