{"id":"vidhyamitra:city-day:rishikesh:2011-12-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2011-12-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-12-23","date_display":"December 23, 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":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455918.770833,"kali_year":5113,"ahargana":1867453.2708,"sun":{"sidereal_longitude":246.4678,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":225.4385,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":338.9706,"elapsed_within_tithi_degrees":2.9706},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":225.4385,"elapsed_within_degrees":12.1051},"yoga":{"number":9,"name":"Śūla","sum_longitude":111.9063},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"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":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455918.770833,"ahargana":1867453.2708,"kali_year":5113,"ayanamsa_lahiri":24.0203,"grahas":{"sun":{"sidereal_longitude":246.81600000000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"moon":{"sidereal_longitude":223.8578,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false,"latitude":-0.6179},"mars":{"sidereal_longitude":143.41409999999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":224.76390000000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":6.206000000000017,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":278.6263,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":183.38189999999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":233.3389,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":53.3389,"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":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455918.770833,"kali_year":5113,"ahargana":1867453.2708,"sun":{"sidereal_longitude":246.4678,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":225.4385,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":338.9706,"elapsed_within_tithi_degrees":2.9706},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":225.4385,"elapsed_within_degrees":12.1051},"yoga":{"number":9,"name":"Śūla","sum_longitude":111.9063},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.618,"elongation":21.029},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.618,"opposition_distance":158.971}},"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":"07:10","sunsetLocal":"17:23","solarNoonLocal":"12:16","dayLengthHours":10.20497618267469,"dayLengthDisplay":"10 Hours 12 Mins 18 Secs","nightLengthDisplay":"13 Hours 47 Mins 42 Secs","moonriseLocal":"05:35","moonsetLocal":"15:55","rahuKala":{"name":"Rāhu Kāla","start":"11:00","end":"12:16","startHours":10.999146448970544,"endHours":12.27476847180488,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:50","end":"16:06","startHours":14.826012517473552,"endHours":16.10163454030789,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:27","end":"09:43","startHours":8.447902403301871,"endHours":9.723524426136208,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:33","end":"09:54","startHours":9.553441489758296,"endHours":9.89360736251412,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:36","end":"07:52","startHours":7.597487721412314,"endHours":7.869620419616973,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:37","startHours":11.934602599049057,"endHours":12.614934344560702,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:49","end":"06:30","startHours":5.8116168894442435,"endHours":6.4919486349558895,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:19","end":"07:10","startHours":6.321865698577978,"endHours":7.1722803804675355,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:59","end":"14:39","startHours":13.975597835583995,"endHours":14.655929581095641,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:11","end":"17:35","startHours":17.177256563142226,"endHours":17.577256563142225,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:23","end":"17:48","startHours":17.377256563142225,"endHours":17.802463904087006,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:08","end":"18:53","startHours":17.127256563142225,"endHours":18.877256563142225,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:37","startHours":23.934602599049057,"endHours":24.6149343445607,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:10","end":"08:27","startHours":7.1722803804675355,"endHours":8.447902403301871,"quality":"neutral"},{"name":"Labha","start":"08:27","end":"09:43","startHours":8.447902403301871,"endHours":9.723524426136208,"quality":"auspicious"},{"name":"Amṛta","start":"09:43","end":"11:00","startHours":9.723524426136208,"endHours":10.999146448970544,"quality":"auspicious"},{"name":"Kāla","start":"11:00","end":"12:16","startHours":10.999146448970544,"endHours":12.27476847180488,"quality":"inauspicious"},{"name":"Śubha","start":"12:16","end":"13:33","startHours":12.27476847180488,"endHours":13.550390494639217,"quality":"auspicious"},{"name":"Roga","start":"13:33","end":"14:50","startHours":13.550390494639217,"endHours":14.826012517473552,"quality":"inauspicious"},{"name":"Udveg","start":"14:50","end":"16:06","startHours":14.826012517473552,"endHours":16.10163454030789,"quality":"inauspicious"},{"name":"Chala","start":"16:06","end":"17:23","startHours":16.10163454030789,"endHours":17.377256563142225,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:23","end":"19:06","startHours":17.377256563142225,"endHours":19.101634540307888,"quality":"inauspicious"},{"name":"Udveg","start":"19:06","end":"20:50","startHours":19.101634540307888,"endHours":20.826012517473554,"quality":"inauspicious"},{"name":"Chala","start":"20:50","end":"22:33","startHours":20.826012517473554,"endHours":22.550390494639217,"quality":"neutral"},{"name":"Labha","start":"22:33","end":"00:16","startHours":22.550390494639217,"endHours":24.27476847180488,"quality":"auspicious"},{"name":"Amṛta","start":"00:16","end":"02:00","startHours":24.27476847180488,"endHours":25.999146448970542,"quality":"auspicious"},{"name":"Kāla","start":"02:00","end":"03:43","startHours":25.999146448970542,"endHours":27.72352442613621,"quality":"inauspicious"},{"name":"Śubha","start":"03:43","end":"05:27","startHours":27.72352442613621,"endHours":29.44790240330187,"quality":"auspicious"},{"name":"Roga","start":"05:27","end":"07:10","startHours":29.44790240330187,"endHours":31.172280380467534,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:10","end":"08:10","startHours":7.1722803804675355,"endHours":8.172280380467535,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:10","end":"09:10","startHours":8.172280380467535,"endHours":9.172280380467535,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:10","end":"10:10","startHours":9.172280380467535,"endHours":10.172280380467535,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:10","end":"11:10","startHours":10.172280380467535,"endHours":11.172280380467535,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:10","end":"12:10","startHours":11.172280380467535,"endHours":12.172280380467535,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:10","end":"13:10","startHours":12.172280380467535,"endHours":13.172280380467535,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:10","end":"14:10","startHours":13.172280380467535,"endHours":14.172280380467535,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:10","end":"15:10","startHours":14.172280380467535,"endHours":15.172280380467535,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:10","end":"16:10","startHours":15.172280380467535,"endHours":16.172280380467534,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:10","end":"17:10","startHours":16.172280380467534,"endHours":17.172280380467534,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:10","end":"18:10","startHours":17.172280380467534,"endHours":18.172280380467534,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:10","end":"19:10","startHours":18.172280380467534,"endHours":19.172280380467534,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:10","end":"20:10","startHours":19.172280380467534,"endHours":20.172280380467534,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:10","end":"21:10","startHours":20.172280380467534,"endHours":21.172280380467534,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:10","end":"22:10","startHours":21.172280380467534,"endHours":22.172280380467534,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:10","end":"23:10","startHours":22.172280380467534,"endHours":23.172280380467534,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:10","end":"00:10","startHours":23.172280380467534,"endHours":24.172280380467534,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:10","end":"01:10","startHours":24.172280380467534,"endHours":25.172280380467534,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:10","end":"02:10","startHours":25.172280380467534,"endHours":26.172280380467534,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:10","end":"03:10","startHours":26.172280380467534,"endHours":27.172280380467534,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:10","end":"04:10","startHours":27.172280380467534,"endHours":28.172280380467534,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:10","end":"05:10","startHours":28.172280380467534,"endHours":29.172280380467534,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:10","end":"06:10","startHours":29.172280380467534,"endHours":30.172280380467534,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:10","end":"07:10","startHours":30.172280380467534,"endHours":31.172280380467534,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"South-East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.433854280535993,"eotMinutes":0.4434916917071845,"ayanamsa":24.0203}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Caturdaśī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5},{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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 23, 2011 CE · Ṛṣikeśa · Vidhyamitra","description":"December 23, 2011 CE for Ṛṣikeśa: Kṛṣṇa Caturdaśī, sūryodaya 07:10, sūryāsta 17:23.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2011-12-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2011-12-23","sa":"https://sa.vidhyamitra.com/city/rishikesh/2011-12-23","hi":"https://hi.vidhyamitra.com/city/rishikesh/2011-12-23","x-default":"https://vidhyamitra.com/city/rishikesh/2011-12-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T09:39:49.192Z","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":"2026-05-16T09:39:49.192Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T09:39:49.192Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}