{"id":"vidhyamitra:city-day:rishikesh:2001-12-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2001-12-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2001-12-11","date_display":"December 11, 2001 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":2001,"month":12,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452254.770833,"kali_year":5103,"ahargana":1863789.2708,"sun":{"sidereal_longitude":234.7558,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":187.3998,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":312.644,"elapsed_within_tithi_degrees":0.644},"nakshatra":{"number":15,"name":"Svātī","pada":1,"moon_longitude":187.3998,"elapsed_within_degrees":0.7331},"yoga":{"number":5,"name":"Śobhana","sum_longitude":62.1555},"karana":{"half_tithi_index":52,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2001,"month":12,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2452254.770833,"ahargana":1863789.2708,"kali_year":5103,"ayanamsa_lahiri":23.8801,"grahas":{"sun":{"sidereal_longitude":235.179892,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":187.23389199999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false,"latitude":3.8991},"mars":{"sidereal_longitude":307.674992,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":238.55089199999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":79.370992,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":226.91589199999999,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":46.886792000000014,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":67.4752,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":247.4752,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","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":2001,"month":12,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452254.770833,"kali_year":5103,"ahargana":1863789.2708,"sun":{"sidereal_longitude":234.7558,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":187.3998,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":312.644,"elapsed_within_tithi_degrees":0.644},"nakshatra":{"number":15,"name":"Svātī","pada":1,"moon_longitude":187.3998,"elapsed_within_degrees":0.7331},"yoga":{"number":5,"name":"Śobhana","sum_longitude":62.1555},"karana":{"half_tithi_index":52,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.899,"elongation":47.356},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.899,"opposition_distance":132.644}},"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":10.246594895388597,"dayLengthDisplay":"10 Hours 14 Mins 48 Secs","nightLengthDisplay":"13 Hours 45 Mins 12 Secs","moonriseLocal":"03:24","moonsetLocal":"14:34","rahuKala":{"name":"Rāhu Kāla","start":"14:45","end":"16:01","startHours":14.744007345771603,"endHours":16.024831707695178,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:37","end":"10:54","startHours":9.620709898077305,"endHours":10.90153426000088,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:11","end":"13:28","startHours":12.182358621924454,"endHours":13.463182983848029,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:27","end":"09:47","startHours":9.449933316487495,"endHours":9.791486479667114,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:29","end":"07:46","startHours":7.48600262820468,"endHours":7.759245158748376,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:31","startHours":11.840805458744834,"endHours":12.523911785104074,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:42","end":"06:23","startHours":5.692848521511676,"endHours":6.375954847870916,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:12","end":"07:04","startHours":6.205178266281106,"endHours":7.0590611742301554,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:53","end":"14:34","startHours":13.890124437822553,"endHours":14.573230764181794,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:06","end":"17:30","startHours":17.105656069618753,"endHours":17.50565606961875,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:18","end":"17:44","startHours":17.305656069618752,"endHours":17.732597523593277,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:03","end":"18:48","startHours":17.055656069618752,"endHours":18.805656069618752,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:31","startHours":23.840805458744835,"endHours":24.523911785104072,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:04","end":"08:20","startHours":7.0590611742301554,"endHours":8.33988553615373,"quality":"inauspicious"},{"name":"Udveg","start":"08:20","end":"09:37","startHours":8.33988553615373,"endHours":9.620709898077305,"quality":"inauspicious"},{"name":"Chala","start":"09:37","end":"10:54","startHours":9.620709898077305,"endHours":10.90153426000088,"quality":"neutral"},{"name":"Labha","start":"10:54","end":"12:11","startHours":10.90153426000088,"endHours":12.182358621924454,"quality":"auspicious"},{"name":"Amṛta","start":"12:11","end":"13:28","startHours":12.182358621924454,"endHours":13.463182983848029,"quality":"auspicious"},{"name":"Kāla","start":"13:28","end":"14:45","startHours":13.463182983848029,"endHours":14.744007345771603,"quality":"inauspicious"},{"name":"Śubha","start":"14:45","end":"16:01","startHours":14.744007345771603,"endHours":16.024831707695178,"quality":"auspicious"},{"name":"Roga","start":"16:01","end":"17:18","startHours":16.024831707695178,"endHours":17.305656069618752,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:18","end":"19:01","startHours":17.305656069618752,"endHours":19.024831707695178,"quality":"inauspicious"},{"name":"Śubha","start":"19:01","end":"20:45","startHours":19.024831707695178,"endHours":20.744007345771603,"quality":"auspicious"},{"name":"Roga","start":"20:45","end":"22:28","startHours":20.744007345771603,"endHours":22.46318298384803,"quality":"inauspicious"},{"name":"Udveg","start":"22:28","end":"00:11","startHours":22.46318298384803,"endHours":24.182358621924454,"quality":"inauspicious"},{"name":"Chala","start":"00:11","end":"01:54","startHours":24.182358621924454,"endHours":25.90153426000088,"quality":"neutral"},{"name":"Labha","start":"01:54","end":"03:37","startHours":25.90153426000088,"endHours":27.620709898077305,"quality":"auspicious"},{"name":"Amṛta","start":"03:37","end":"05:20","startHours":27.620709898077305,"endHours":29.33988553615373,"quality":"auspicious"},{"name":"Kāla","start":"05:20","end":"07:04","startHours":29.33988553615373,"endHours":31.059061174230155,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:04","end":"08:04","startHours":7.0590611742301554,"endHours":8.059061174230155,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:04","end":"09:04","startHours":8.059061174230155,"endHours":9.059061174230155,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:04","end":"10:04","startHours":9.059061174230155,"endHours":10.059061174230155,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:04","end":"11:04","startHours":10.059061174230155,"endHours":11.059061174230155,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:04","end":"12:04","startHours":11.059061174230155,"endHours":12.059061174230155,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:04","end":"13:04","startHours":12.059061174230155,"endHours":13.059061174230155,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:04","end":"14:04","startHours":13.059061174230155,"endHours":14.059061174230155,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:04","end":"15:04","startHours":14.059061174230155,"endHours":15.059061174230155,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:04","end":"16:04","startHours":15.059061174230155,"endHours":16.059061174230155,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:04","end":"17:04","startHours":16.059061174230155,"endHours":17.059061174230155,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:04","end":"18:04","startHours":17.059061174230155,"endHours":18.059061174230155,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:04","end":"19:04","startHours":18.059061174230155,"endHours":19.059061174230155,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:04","end":"20:04","startHours":19.059061174230155,"endHours":20.059061174230155,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:04","end":"21:04","startHours":20.059061174230155,"endHours":21.059061174230155,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:04","end":"22:04","startHours":21.059061174230155,"endHours":22.059061174230155,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:04","end":"23:04","startHours":22.059061174230155,"endHours":23.059061174230155,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:04","end":"00:04","startHours":23.059061174230155,"endHours":24.059061174230155,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:04","end":"01:04","startHours":24.059061174230155,"endHours":25.059061174230155,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:04","end":"02:04","startHours":25.059061174230155,"endHours":26.059061174230155,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:04","end":"03:04","startHours":26.059061174230155,"endHours":27.059061174230155,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:04","end":"04:04","startHours":27.059061174230155,"endHours":28.059061174230155,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:04","end":"05:04","startHours":28.059061174230155,"endHours":29.059061174230155,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:04","end":"06:04","startHours":29.059061174230155,"endHours":30.059061174230155,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:04","end":"07:04","startHours":30.059061174230155,"endHours":31.059061174230155,"planetary_lord":"Saturn"}],"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","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"North","rahuVasa":"North","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"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":-22.98587855801788,"eotMinutes":5.988082684532823,"ayanamsa":23.8801}},"calendars":{"vikram_samvat":2058,"vikram_samvatsara":"Jaya","saka_samvat":1923,"saka_samvatsara":"Vṛṣa","bengali_samvat":1408,"malayalam_era":1177,"nanakshahi_year":532,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Kṛṣṇa Dvādaśī · Vikram 2058 Jaya · Śaka 1923 Vṛṣa"},"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":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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, 2001 CE · Ṛṣikeśa · Vidhyamitra","description":"December 11, 2001 CE for Ṛṣikeśa: Kṛṣṇa Dvādaśī, sūryodaya 07:04, sūryāsta 17:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2001-12-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2001-12-11","sa":"https://sa.vidhyamitra.com/city/rishikesh/2001-12-11","hi":"https://hi.vidhyamitra.com/city/rishikesh/2001-12-11","x-default":"https://vidhyamitra.com/city/rishikesh/2001-12-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T05:32:17.174Z","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":"2026-05-17T05:32:17.174Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T05:32:17.174Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}