{"id":"vidhyamitra:city-day:rishikesh:2011-12-09:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2011-12-09","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-12-09","date_display":"December 9, 2011 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":2011,"month":12,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455904.770833,"kali_year":5113,"ahargana":1867439.2708,"sun":{"sidereal_longitude":232.1049,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":33.7746,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":161.6697,"elapsed_within_tithi_degrees":5.6697},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":33.7746,"elapsed_within_degrees":7.108},"yoga":{"number":20,"name":"Śiva","sum_longitude":265.8796},"karana":{"half_tithi_index":26,"name":"Gara"},"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":2011,"month":12,"day":9,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455904.770833,"ahargana":1867439.2708,"kali_year":5113,"ayanamsa_lahiri":24.0197,"grahas":{"sun":{"sidereal_longitude":232.57473499999992,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":35.08973500000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false,"latitude":1.5602},"mars":{"sidereal_longitude":138.45293500000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":221.92613499999993,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":6.690035000000023,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":true},"venus":{"sidereal_longitude":261.333035,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":182.202535,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":234.0807,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":54.0807,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1},"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":2011,"month":12,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455904.770833,"kali_year":5113,"ahargana":1867439.2708,"sun":{"sidereal_longitude":232.1049,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":33.7746,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":161.6697,"elapsed_within_tithi_degrees":5.6697},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":33.7746,"elapsed_within_degrees":7.108},"yoga":{"number":20,"name":"Śiva","sum_longitude":265.8796},"karana":{"half_tithi_index":26,"name":"Gara"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.56,"elongation":161.67},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.56,"opposition_distance":18.33}},"eclipse_window_40days":[{"offset_days":-14,"type":"solar","occurs":true,"moon_latitude":-1.467,"elongation":2.03}]},"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":"07:02","sunsetLocal":"17:18","solarNoonLocal":"12:10","dayLengthHours":10.26732272263041,"dayLengthDisplay":"10 Hours 16 Mins 02 Secs","nightLengthDisplay":"13 Hours 43 Mins 58 Secs","moonriseLocal":"16:09","moonsetLocal":"05:52","rahuKala":{"name":"Rāhu Kāla","start":"10:53","end":"12:10","startHours":10.88429695220118,"endHours":12.16771229252998,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:44","end":"16:01","startHours":14.734542973187583,"endHours":16.017958313516385,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:19","end":"09:36","startHours":8.317466271543577,"endHours":9.600881611872378,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:46","startHours":9.429759566495205,"endHours":9.772003657249552,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:28","end":"07:44","startHours":7.46185604465771,"endHours":7.735651317261187,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:31","startHours":11.825468201775633,"endHours":12.509956383284328,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:40","end":"06:21","startHours":5.665074568197388,"endHours":6.349562749706082,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:11","end":"07:02","startHours":6.178440704328908,"endHours":7.034050931214776,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:53","end":"14:34","startHours":13.878932746301718,"endHours":14.563420927810412,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:06","end":"17:30","startHours":17.101373653845187,"endHours":17.501373653845185,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:18","end":"17:44","startHours":17.301373653845186,"endHours":17.72917876728812,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:03","end":"18:48","startHours":17.051373653845186,"endHours":18.801373653845186,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:31","startHours":23.825468201775635,"endHours":24.509956383284326,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:02","end":"08:19","startHours":7.034050931214776,"endHours":8.317466271543577,"quality":"neutral"},{"name":"Labha","start":"08:19","end":"09:36","startHours":8.317466271543577,"endHours":9.600881611872378,"quality":"auspicious"},{"name":"Amṛta","start":"09:36","end":"10:53","startHours":9.600881611872378,"endHours":10.88429695220118,"quality":"auspicious"},{"name":"Kāla","start":"10:53","end":"12:10","startHours":10.88429695220118,"endHours":12.16771229252998,"quality":"inauspicious"},{"name":"Śubha","start":"12:10","end":"13:27","startHours":12.16771229252998,"endHours":13.451127632858782,"quality":"auspicious"},{"name":"Roga","start":"13:27","end":"14:44","startHours":13.451127632858782,"endHours":14.734542973187583,"quality":"inauspicious"},{"name":"Udveg","start":"14:44","end":"16:01","startHours":14.734542973187583,"endHours":16.017958313516385,"quality":"inauspicious"},{"name":"Chala","start":"16:01","end":"17:18","startHours":16.017958313516385,"endHours":17.301373653845186,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:18","end":"19:01","startHours":17.301373653845186,"endHours":19.017958313516385,"quality":"inauspicious"},{"name":"Udveg","start":"19:01","end":"20:44","startHours":19.017958313516385,"endHours":20.734542973187583,"quality":"inauspicious"},{"name":"Chala","start":"20:44","end":"22:27","startHours":20.734542973187583,"endHours":22.451127632858782,"quality":"neutral"},{"name":"Labha","start":"22:27","end":"00:10","startHours":22.451127632858782,"endHours":24.16771229252998,"quality":"auspicious"},{"name":"Amṛta","start":"00:10","end":"01:53","startHours":24.16771229252998,"endHours":25.88429695220118,"quality":"auspicious"},{"name":"Kāla","start":"01:53","end":"03:36","startHours":25.88429695220118,"endHours":27.600881611872378,"quality":"inauspicious"},{"name":"Śubha","start":"03:36","end":"05:19","startHours":27.600881611872378,"endHours":29.317466271543577,"quality":"auspicious"},{"name":"Roga","start":"05:19","end":"07:02","startHours":29.317466271543577,"endHours":31.034050931214775,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:02","end":"08:02","startHours":7.034050931214776,"endHours":8.034050931214775,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:02","end":"09:02","startHours":8.034050931214775,"endHours":9.034050931214775,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:02","end":"10:02","startHours":9.034050931214775,"endHours":10.034050931214775,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:02","end":"11:02","startHours":10.034050931214775,"endHours":11.034050931214775,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:02","end":"12:02","startHours":11.034050931214775,"endHours":12.034050931214775,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:02","end":"13:02","startHours":12.034050931214775,"endHours":13.034050931214775,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:02","end":"14:02","startHours":13.034050931214775,"endHours":14.034050931214775,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:02","end":"15:02","startHours":14.034050931214775,"endHours":15.034050931214775,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:02","end":"16:02","startHours":15.034050931214775,"endHours":16.034050931214775,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:02","end":"17:02","startHours":16.034050931214775,"endHours":17.034050931214775,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:02","end":"18:02","startHours":17.034050931214775,"endHours":18.034050931214775,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:02","end":"19:02","startHours":18.034050931214775,"endHours":19.034050931214775,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:02","end":"20:02","startHours":19.034050931214775,"endHours":20.034050931214775,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:02","end":"21:02","startHours":20.034050931214775,"endHours":21.034050931214775,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:02","end":"22:02","startHours":21.034050931214775,"endHours":22.034050931214775,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:02","end":"23:02","startHours":22.034050931214775,"endHours":23.034050931214775,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:02","end":"00:02","startHours":23.034050931214775,"endHours":24.034050931214775,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:02","end":"01:02","startHours":24.034050931214775,"endHours":25.034050931214775,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:02","end":"02:02","startHours":25.034050931214775,"endHours":26.034050931214775,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:02","end":"03:02","startHours":26.034050931214775,"endHours":27.034050931214775,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:02","end":"04:02","startHours":27.034050931214775,"endHours":28.034050931214775,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:02","end":"05:02","startHours":28.034050931214775,"endHours":29.034050931214775,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:02","end":"06:02","startHours":29.034050931214775,"endHours":30.034050931214775,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:02","end":"07:02","startHours":30.034050931214775,"endHours":31.034050931214775,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","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":-22.761471314325302,"eotMinutes":6.866862448201248,"ayanamsa":24.0197}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Caturdaśī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"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":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"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 9, 2011 CE · Ṛṣikeśa · Vidhyamitra","description":"December 9, 2011 CE for Ṛṣikeśa: Śukla Caturdaśī, sūryodaya 07:02, sūryāsta 17:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2011-12-09","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2011-12-09","sa":"https://sa.vidhyamitra.com/city/rishikesh/2011-12-09","hi":"https://hi.vidhyamitra.com/city/rishikesh/2011-12-09","x-default":"https://vidhyamitra.com/city/rishikesh/2011-12-09"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T09:55:28.588Z","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":"2026-05-16T09:55:28.588Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T09:55:28.588Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}