{"id":"vidhyamitra:city-day:rishikesh:1966-12-26:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1966-12-26","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1966-12-26","date_display":"December 26, 1966 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":1966,"month":12,"day":26,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2439485.770833,"kali_year":5068,"ahargana":1851020.2708,"sun":{"sidereal_longitude":250.2125,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":48.4529,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":158.2404,"elapsed_within_tithi_degrees":2.2404},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":48.4529,"elapsed_within_degrees":8.4529},"yoga":{"number":23,"name":"Śubha","sum_longitude":298.6654},"karana":{"half_tithi_index":26,"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":1966,"month":12,"day":26,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2439485.770833,"ahargana":1851020.2708,"kali_year":5068,"ayanamsa_lahiri":23.3918,"grahas":{"sun":{"sidereal_longitude":250.42236200000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":49.46136200000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false,"latitude":1.8584},"mars":{"sidereal_longitude":168.330462,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":237.866262,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":99.669262,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":true},"venus":{"sidereal_longitude":262.32576199999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":330.93626199999994,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":24.0383,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":204.0383,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":1966,"month":12,"day":26,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2439485.770833,"kali_year":5068,"ahargana":1851020.2708,"sun":{"sidereal_longitude":250.2125,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":48.4529,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":158.2404,"elapsed_within_tithi_degrees":2.2404},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":48.4529,"elapsed_within_degrees":8.4529},"yoga":{"number":23,"name":"Śubha","sum_longitude":298.6654},"karana":{"half_tithi_index":26,"name":"Gara"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.858,"elongation":158.24},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.858,"opposition_distance":21.76}},"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":"07:12","sunsetLocal":"17:24","solarNoonLocal":"12:18","dayLengthHours":10.209857081400756,"dayLengthDisplay":"10 Hours 12 Mins 35 Secs","nightLengthDisplay":"13 Hours 47 Mins 25 Secs","moonriseLocal":"15:56","moonsetLocal":"05:52","rahuKala":{"name":"Rāhu Kāla","start":"08:28","end":"09:45","startHours":8.469463799981789,"endHours":9.745695935156881,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:01","end":"12:18","startHours":11.021928070331978,"endHours":12.29816020550707,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:34","end":"14:51","startHours":13.574392340682166,"endHours":14.85062447585726,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:35","end":"09:55","startHours":9.57553165046687,"endHours":9.915860219846895,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:37","end":"07:53","startHours":7.618642376531724,"endHours":7.8909052320357445,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:38","startHours":11.957831636127045,"endHours":12.638488774887096,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:50","end":"06:31","startHours":5.831917387286593,"endHours":6.5125745260466426,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:21","end":"07:12","startHours":6.34241024135663,"endHours":7.193231664806693,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:00","end":"14:41","startHours":13.999803052407199,"endHours":14.68046019116725,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:12","end":"17:36","startHours":17.20308874620745,"endHours":17.603088746207447,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:24","end":"17:50","startHours":17.403088746207448,"endHours":17.82849945793248,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:09","end":"18:54","startHours":17.153088746207448,"endHours":18.903088746207448,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:38","startHours":23.957831636127047,"endHours":24.638488774887094,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:12","end":"08:28","startHours":7.193231664806693,"endHours":8.469463799981789,"quality":"auspicious"},{"name":"Kāla","start":"08:28","end":"09:45","startHours":8.469463799981789,"endHours":9.745695935156881,"quality":"inauspicious"},{"name":"Śubha","start":"09:45","end":"11:01","startHours":9.745695935156881,"endHours":11.021928070331978,"quality":"auspicious"},{"name":"Roga","start":"11:01","end":"12:18","startHours":11.021928070331978,"endHours":12.29816020550707,"quality":"inauspicious"},{"name":"Udveg","start":"12:18","end":"13:34","startHours":12.29816020550707,"endHours":13.574392340682166,"quality":"inauspicious"},{"name":"Chala","start":"13:34","end":"14:51","startHours":13.574392340682166,"endHours":14.85062447585726,"quality":"neutral"},{"name":"Labha","start":"14:51","end":"16:08","startHours":14.85062447585726,"endHours":16.126856611032355,"quality":"auspicious"},{"name":"Amṛta","start":"16:08","end":"17:24","startHours":16.126856611032355,"endHours":17.403088746207448,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:24","end":"19:08","startHours":17.403088746207448,"endHours":19.126856611032352,"quality":"neutral"},{"name":"Labha","start":"19:08","end":"20:51","startHours":19.126856611032352,"endHours":20.85062447585726,"quality":"auspicious"},{"name":"Amṛta","start":"20:51","end":"22:34","startHours":20.85062447585726,"endHours":22.574392340682166,"quality":"auspicious"},{"name":"Kāla","start":"22:34","end":"00:18","startHours":22.574392340682166,"endHours":24.29816020550707,"quality":"inauspicious"},{"name":"Śubha","start":"00:18","end":"02:01","startHours":24.29816020550707,"endHours":26.021928070331974,"quality":"auspicious"},{"name":"Roga","start":"02:01","end":"03:45","startHours":26.021928070331974,"endHours":27.74569593515688,"quality":"inauspicious"},{"name":"Udveg","start":"03:45","end":"05:28","startHours":27.74569593515688,"endHours":29.46946379998179,"quality":"inauspicious"},{"name":"Chala","start":"05:28","end":"07:12","startHours":29.46946379998179,"endHours":31.193231664806692,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:12","end":"08:12","startHours":7.193231664806693,"endHours":8.193231664806692,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:12","end":"09:12","startHours":8.193231664806692,"endHours":9.193231664806692,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:12","end":"10:12","startHours":9.193231664806692,"endHours":10.193231664806692,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:12","end":"11:12","startHours":10.193231664806692,"endHours":11.193231664806692,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:12","end":"12:12","startHours":11.193231664806692,"endHours":12.193231664806692,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:12","end":"13:12","startHours":12.193231664806692,"endHours":13.193231664806692,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:12","end":"14:12","startHours":13.193231664806692,"endHours":14.193231664806692,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:12","end":"15:12","startHours":14.193231664806692,"endHours":15.193231664806692,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:12","end":"16:12","startHours":15.193231664806692,"endHours":16.193231664806692,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:12","end":"17:12","startHours":16.193231664806692,"endHours":17.193231664806692,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:12","end":"18:12","startHours":17.193231664806692,"endHours":18.193231664806692,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:12","end":"19:12","startHours":18.193231664806692,"endHours":19.193231664806692,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:12","end":"20:12","startHours":19.193231664806692,"endHours":20.193231664806692,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:12","end":"21:12","startHours":20.193231664806692,"endHours":21.193231664806692,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:12","end":"22:12","startHours":21.193231664806692,"endHours":22.193231664806692,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:12","end":"23:12","startHours":22.193231664806692,"endHours":23.193231664806692,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:12","end":"00:12","startHours":23.193231664806692,"endHours":24.193231664806692,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:12","end":"01:12","startHours":24.193231664806692,"endHours":25.193231664806692,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:12","end":"02:12","startHours":25.193231664806692,"endHours":26.193231664806692,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:12","end":"03:12","startHours":26.193231664806692,"endHours":27.193231664806692,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:12","end":"04:12","startHours":27.193231664806692,"endHours":28.193231664806692,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:12","end":"05:12","startHours":28.193231664806692,"endHours":29.193231664806692,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:12","end":"06:12","startHours":29.193231664806692,"endHours":30.193231664806692,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:12","end":"07:12","startHours":30.193231664806692,"endHours":31.193231664806692,"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.381497902714724,"eotMinutes":-0.9600123304242594,"ayanamsa":23.3918}},"calendars":{"vikram_samvat":2023,"vikram_samvatsara":"Siddhārthī","saka_samvat":1888,"saka_samvatsara":"Parābhava","bengali_samvat":1373,"malayalam_era":1142,"nanakshahi_year":497,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Caturdaśī · Vikram 2023 Siddhārthī · Śaka 1888 Parābhava"},"festivals":[],"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":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","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 26, 1966 CE · Ṛṣikeśa · Vidhyamitra","description":"December 26, 1966 CE for Ṛṣikeśa: Śukla Caturdaśī, sūryodaya 07:12, sūryāsta 17:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1966-12-26","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1966-12-26","sa":"https://sa.vidhyamitra.com/city/rishikesh/1966-12-26","hi":"https://hi.vidhyamitra.com/city/rishikesh/1966-12-26","x-default":"https://vidhyamitra.com/city/rishikesh/1966-12-26"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T11:35:30.651Z","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":"2026-05-31T11:35:30.651Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T11:35:30.651Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}