{"id":"vidhyamitra:city-day:rishikesh:1959-12-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1959-12-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1959-12-10","date_display":"December 10, 1959 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":1959,"month":12,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436912.770833,"kali_year":5061,"ahargana":1848447.2708,"sun":{"sidereal_longitude":233.5956,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":354.9235,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":121.3279,"elapsed_within_tithi_degrees":1.3279},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":354.9235,"elapsed_within_degrees":8.2569},"yoga":{"number":18,"name":"Varīyān","sum_longitude":228.5191},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1959,"month":12,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2436912.770833,"ahargana":1848447.2708,"kali_year":5061,"ayanamsa_lahiri":23.2934,"grahas":{"sun":{"sidereal_longitude":233.930069,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":357.650069,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false,"latitude":-1.1298},"mars":{"sidereal_longitude":221.751169,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":213.648369,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":231.275169,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":189.92316900000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":254.121669,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":160.3682,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":340.3682,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","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":1959,"month":12,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436912.770833,"kali_year":5061,"ahargana":1848447.2708,"sun":{"sidereal_longitude":233.5956,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":354.9235,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":121.3279,"elapsed_within_tithi_degrees":1.3279},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":354.9235,"elapsed_within_degrees":8.2569},"yoga":{"number":18,"name":"Varīyān","sum_longitude":228.5191},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.13,"elongation":121.328},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.13,"opposition_distance":58.672}},"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":"07:03","sunsetLocal":"17:18","solarNoonLocal":"12:10","dayLengthHours":10.261653131186028,"dayLengthDisplay":"10 Hours 15 Mins 42 Secs","nightLengthDisplay":"13 Hours 44 Mins 18 Secs","moonriseLocal":"14:04","moonsetLocal":"02:47","rahuKala":{"name":"Rāhu Kāla","start":"13:27","end":"14:44","startHours":13.457699775760668,"endHours":14.74040641715892,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:03","end":"08:20","startHours":7.0441665687694,"endHours":8.326873210167653,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:37","end":"10:54","startHours":9.609579851565908,"endHours":10.89228649296416,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:47","startHours":9.438552299379474,"endHours":9.780607403752342,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:28","end":"07:45","startHours":7.471735449235485,"endHours":7.7453795327337795,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:31","startHours":11.832938029989547,"endHours":12.517048238735283,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:41","end":"06:22","startHours":5.6759461512779295,"endHours":6.360056360023665,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:11","end":"07:03","startHours":6.189028807837231,"endHours":7.0441665687694,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:53","end":"14:34","startHours":13.885268656226753,"endHours":14.569378864972489,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:06","end":"17:30","startHours":17.10581969995543,"endHours":17.505819699955428,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:18","end":"17:44","startHours":17.30581969995543,"endHours":17.73338858042151,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:03","end":"18:48","startHours":17.05581969995543,"endHours":18.80581969995543,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:31","startHours":23.83293802998955,"endHours":24.517048238735285,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:03","end":"08:20","startHours":7.0441665687694,"endHours":8.326873210167653,"quality":"auspicious"},{"name":"Roga","start":"08:20","end":"09:37","startHours":8.326873210167653,"endHours":9.609579851565908,"quality":"inauspicious"},{"name":"Udveg","start":"09:37","end":"10:54","startHours":9.609579851565908,"endHours":10.89228649296416,"quality":"inauspicious"},{"name":"Chala","start":"10:54","end":"12:10","startHours":10.89228649296416,"endHours":12.174993134362413,"quality":"neutral"},{"name":"Labha","start":"12:10","end":"13:27","startHours":12.174993134362413,"endHours":13.457699775760668,"quality":"auspicious"},{"name":"Amṛta","start":"13:27","end":"14:44","startHours":13.457699775760668,"endHours":14.74040641715892,"quality":"auspicious"},{"name":"Kāla","start":"14:44","end":"16:01","startHours":14.74040641715892,"endHours":16.023113058557175,"quality":"inauspicious"},{"name":"Śubha","start":"16:01","end":"17:18","startHours":16.023113058557175,"endHours":17.30581969995543,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:18","end":"19:01","startHours":17.30581969995543,"endHours":19.023113058557175,"quality":"auspicious"},{"name":"Kāla","start":"19:01","end":"20:44","startHours":19.023113058557175,"endHours":20.740406417158923,"quality":"inauspicious"},{"name":"Śubha","start":"20:44","end":"22:27","startHours":20.740406417158923,"endHours":22.457699775760666,"quality":"auspicious"},{"name":"Roga","start":"22:27","end":"00:10","startHours":22.457699775760666,"endHours":24.174993134362413,"quality":"inauspicious"},{"name":"Udveg","start":"00:10","end":"01:54","startHours":24.174993134362413,"endHours":25.89228649296416,"quality":"inauspicious"},{"name":"Chala","start":"01:54","end":"03:37","startHours":25.89228649296416,"endHours":27.609579851565908,"quality":"neutral"},{"name":"Labha","start":"03:37","end":"05:20","startHours":27.609579851565908,"endHours":29.326873210167655,"quality":"auspicious"},{"name":"Amṛta","start":"05:20","end":"07:03","startHours":29.326873210167655,"endHours":31.0441665687694,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:03","end":"08:03","startHours":7.0441665687694,"endHours":8.0441665687694,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:03","end":"09:03","startHours":8.0441665687694,"endHours":9.0441665687694,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:03","end":"10:03","startHours":9.0441665687694,"endHours":10.0441665687694,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:03","end":"11:03","startHours":10.0441665687694,"endHours":11.0441665687694,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:03","end":"12:03","startHours":11.0441665687694,"endHours":12.0441665687694,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:03","end":"13:03","startHours":12.0441665687694,"endHours":13.0441665687694,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:03","end":"14:03","startHours":13.0441665687694,"endHours":14.0441665687694,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:03","end":"15:03","startHours":14.0441665687694,"endHours":15.0441665687694,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:03","end":"16:03","startHours":15.0441665687694,"endHours":16.0441665687694,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:03","end":"17:03","startHours":16.0441665687694,"endHours":17.0441665687694,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:03","end":"18:03","startHours":17.0441665687694,"endHours":18.0441665687694,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:03","end":"19:03","startHours":18.0441665687694,"endHours":19.0441665687694,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:03","end":"20:03","startHours":19.0441665687694,"endHours":20.0441665687694,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:03","end":"21:03","startHours":20.0441665687694,"endHours":21.0441665687694,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:03","end":"22:03","startHours":21.0441665687694,"endHours":22.0441665687694,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:03","end":"23:03","startHours":22.0441665687694,"endHours":23.0441665687694,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:03","end":"00:03","startHours":23.0441665687694,"endHours":24.0441665687694,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:03","end":"01:03","startHours":24.0441665687694,"endHours":25.0441665687694,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:03","end":"02:03","startHours":25.0441665687694,"endHours":26.0441665687694,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:03","end":"03:03","startHours":26.0441665687694,"endHours":27.0441665687694,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:03","end":"04:03","startHours":27.0441665687694,"endHours":28.0441665687694,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:03","end":"05:03","startHours":28.0441665687694,"endHours":29.0441665687694,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:03","end":"06:03","startHours":29.0441665687694,"endHours":30.0441665687694,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:03","end":"07:03","startHours":30.0441665687694,"endHours":31.0441665687694,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-22.822937780281766,"eotMinutes":6.4300119382551255,"ayanamsa":23.2934}},"calendars":{"vikram_samvat":2016,"vikram_samvatsara":"Paridhāvi","saka_samvat":1881,"saka_samvatsara":"Vikāri","bengali_samvat":1366,"malayalam_era":1135,"nanakshahi_year":490,"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":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Ekādaśī · Vikram 2016 Paridhāvi · Śaka 1881 Vikāri"},"festivals":[{"id":"gita-jayanti","name":"Gītā Jayantī (= Mokṣadā Ekādaśī)","name_sanskrit":"गीता जयन्ती","tradition":"Vaishnava","associated_deity":"Krishna (Bhagavad-Gītā speaker)","significance":"Day Bhagavad Gītā was delivered at Kurukṣetra (Mahābhārata Day 1).","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":1,"related_chart":"krishna","historical_anchor":{"event":"Bhagavad Gītā delivered at Kurukṣetra (Mahābhārata Day 1)","date_julian":"-3137-10-04","location":"Kurukṣetra"},"sources":["Bhagavad Gītā (Mahābhārata, Bhīṣma Parva)"]},{"id":"vaikuntha-ekadashi","name":"Vaikuṇṭha Ekādaśī","name_sanskrit":"वैकुण्ठ एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Most sacred Ekādaśī of the year; 'Vaikuṇṭha-dvāram udghaṭitam'.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":2},{"id":"mokshada-ekadashi","name":"Mokṣadā Ekādaśī (Gītā Jayantī)","name_sanskrit":"मोक्षदा एकादशी / गीता जयन्ती","tradition":"Vaishnava","associated_deity":"Krishna (Bhagavad Gītā delivery)","significance":"Day Bhagavad Gītā was delivered at Kurukṣetra.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":3},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 10, 1959 CE · Ṛṣikeśa · Vidhyamitra","description":"December 10, 1959 CE for Ṛṣikeśa: Śukla Ekādaśī, sūryodaya 07:03, sūryāsta 17:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1959-12-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1959-12-10","sa":"https://sa.vidhyamitra.com/city/rishikesh/1959-12-10","hi":"https://hi.vidhyamitra.com/city/rishikesh/1959-12-10","x-default":"https://vidhyamitra.com/city/rishikesh/1959-12-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T08:24:57.761Z","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":"2026-06-02T08:24:57.761Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T08:24:57.761Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}