{"id":"vidhyamitra:city-day:rishikesh:2011-12-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2011-12-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-12-19","date_display":"December 19, 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":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455914.770833,"kali_year":5113,"ahargana":1867449.2708,"sun":{"sidereal_longitude":242.3596,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":167.6423,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":285.2827,"elapsed_within_tithi_degrees":9.2827},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":167.6423,"elapsed_within_degrees":7.6423},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":50.0019},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455914.770833,"ahargana":1867449.2708,"kali_year":5113,"ayanamsa_lahiri":24.0201,"grahas":{"sun":{"sidereal_longitude":242.743153,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":165.922953,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false,"latitude":-4.1073},"mars":{"sidereal_longitude":142.11925300000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":221.35815300000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":6.275652999999977,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":273.693453,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":183.069253,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":233.5508,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":53.5508,"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":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455914.770833,"kali_year":5113,"ahargana":1867449.2708,"sun":{"sidereal_longitude":242.3596,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":167.6423,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":285.2827,"elapsed_within_tithi_degrees":9.2827},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":167.6423,"elapsed_within_degrees":7.6423},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":50.0019},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.107,"elongation":74.717},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.107,"opposition_distance":105.283}},"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":"07:08","sunsetLocal":"17:21","solarNoonLocal":"12:15","dayLengthHours":10.208423168079037,"dayLengthDisplay":"10 Hours 12 Mins 30 Secs","nightLengthDisplay":"13 Hours 47 Mins 30 Secs","moonriseLocal":"01:14","moonsetLocal":"13:01","rahuKala":{"name":"Rāhu Kāla","start":"08:25","end":"09:41","startHours":8.415327472568219,"endHours":9.691380368578098,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:58","end":"12:15","startHours":10.967433264587978,"endHours":12.243486160597858,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:31","end":"14:48","startHours":13.519539056607737,"endHours":14.795591952617617,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:31","end":"09:52","startHours":9.521239982443447,"endHours":9.861520754712748,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:34","end":"07:50","startHours":7.564625541894965,"endHours":7.836850159710406,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:35","startHours":11.903205388328557,"endHours":12.583766932867158,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:47","end":"06:28","startHours":5.778151487481134,"endHours":6.458713032019736,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:17","end":"07:08","startHours":6.288572645885085,"endHours":7.139274576558338,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:38","startHours":13.944890021944364,"endHours":14.625451566482965,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:09","end":"17:33","startHours":17.147697744637377,"endHours":17.547697744637375,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:21","end":"17:46","startHours":17.347697744637376,"endHours":17.773048709974002,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:06","end":"18:51","startHours":17.097697744637376,"endHours":18.847697744637376,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:35","startHours":23.903205388328555,"endHours":24.58376693286716,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:08","end":"08:25","startHours":7.139274576558338,"endHours":8.415327472568219,"quality":"auspicious"},{"name":"Kāla","start":"08:25","end":"09:41","startHours":8.415327472568219,"endHours":9.691380368578098,"quality":"inauspicious"},{"name":"Śubha","start":"09:41","end":"10:58","startHours":9.691380368578098,"endHours":10.967433264587978,"quality":"auspicious"},{"name":"Roga","start":"10:58","end":"12:15","startHours":10.967433264587978,"endHours":12.243486160597858,"quality":"inauspicious"},{"name":"Udveg","start":"12:15","end":"13:31","startHours":12.243486160597858,"endHours":13.519539056607737,"quality":"inauspicious"},{"name":"Chala","start":"13:31","end":"14:48","startHours":13.519539056607737,"endHours":14.795591952617617,"quality":"neutral"},{"name":"Labha","start":"14:48","end":"16:04","startHours":14.795591952617617,"endHours":16.071644848627496,"quality":"auspicious"},{"name":"Amṛta","start":"16:04","end":"17:21","startHours":16.071644848627496,"endHours":17.347697744637376,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:21","end":"19:04","startHours":17.347697744637376,"endHours":19.071644848627496,"quality":"neutral"},{"name":"Labha","start":"19:04","end":"20:48","startHours":19.071644848627496,"endHours":20.795591952617617,"quality":"auspicious"},{"name":"Amṛta","start":"20:48","end":"22:31","startHours":20.795591952617617,"endHours":22.519539056607737,"quality":"auspicious"},{"name":"Kāla","start":"22:31","end":"00:15","startHours":22.519539056607737,"endHours":24.243486160597858,"quality":"inauspicious"},{"name":"Śubha","start":"00:15","end":"01:58","startHours":24.243486160597858,"endHours":25.967433264587978,"quality":"auspicious"},{"name":"Roga","start":"01:58","end":"03:41","startHours":25.967433264587978,"endHours":27.6913803685781,"quality":"inauspicious"},{"name":"Udveg","start":"03:41","end":"05:25","startHours":27.6913803685781,"endHours":29.41532747256822,"quality":"inauspicious"},{"name":"Chala","start":"05:25","end":"07:08","startHours":29.41532747256822,"endHours":31.13927457655834,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:08","end":"08:08","startHours":7.139274576558338,"endHours":8.13927457655834,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:08","end":"09:08","startHours":8.13927457655834,"endHours":9.13927457655834,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:08","end":"10:08","startHours":9.13927457655834,"endHours":10.13927457655834,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:08","end":"11:08","startHours":10.13927457655834,"endHours":11.13927457655834,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:08","end":"12:08","startHours":11.13927457655834,"endHours":12.13927457655834,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:08","end":"13:08","startHours":12.13927457655834,"endHours":13.13927457655834,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:08","end":"14:08","startHours":13.13927457655834,"endHours":14.13927457655834,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:08","end":"15:08","startHours":14.13927457655834,"endHours":15.13927457655834,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:08","end":"16:08","startHours":15.13927457655834,"endHours":16.13927457655834,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:08","end":"17:08","startHours":16.13927457655834,"endHours":17.13927457655834,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:08","end":"18:08","startHours":17.13927457655834,"endHours":18.13927457655834,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:08","end":"19:08","startHours":18.13927457655834,"endHours":19.13927457655834,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:08","end":"20:08","startHours":19.13927457655834,"endHours":20.13927457655834,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:08","end":"21:08","startHours":20.13927457655834,"endHours":21.13927457655834,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:08","end":"22:08","startHours":21.13927457655834,"endHours":22.13927457655834,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:08","end":"23:08","startHours":22.13927457655834,"endHours":23.13927457655834,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:08","end":"00:08","startHours":23.13927457655834,"endHours":24.13927457655834,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:08","end":"01:08","startHours":24.13927457655834,"endHours":25.13927457655834,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:08","end":"02:08","startHours":25.13927457655834,"endHours":26.13927457655834,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:08","end":"03:08","startHours":26.13927457655834,"endHours":27.13927457655834,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:08","end":"04:08","startHours":27.13927457655834,"endHours":28.13927457655834,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:08","end":"05:08","startHours":28.13927457655834,"endHours":29.13927457655834,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:08","end":"06:08","startHours":29.13927457655834,"endHours":30.13927457655834,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:08","end":"07:08","startHours":30.13927457655834,"endHours":31.13927457655834,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Mṛtyu","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.396884183010492,"eotMinutes":2.3204303641286352,"ayanamsa":24.0201}},"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 Navamī · 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}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 19, 2011 CE · Ṛṣikeśa · Vidhyamitra","description":"December 19, 2011 CE for Ṛṣikeśa: Kṛṣṇa Navamī, sūryodaya 07:08, sūryāsta 17:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2011-12-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2011-12-19","sa":"https://sa.vidhyamitra.com/city/rishikesh/2011-12-19","hi":"https://hi.vidhyamitra.com/city/rishikesh/2011-12-19","x-default":"https://vidhyamitra.com/city/rishikesh/2011-12-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T14:46:54.867Z","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":"2026-05-16T14:46:54.867Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T14:46:54.867Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}