{"id":"vidhyamitra:city-day:rishikesh:1963-12-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1963-12-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1963-12-19","date_display":"December 19, 1963 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":1963,"month":12,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438382.770833,"kali_year":5065,"ahargana":1849917.2708,"sun":{"sidereal_longitude":242.7912,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":277.8596,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":35.0684,"elapsed_within_tithi_degrees":11.0684},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":277.8596,"elapsed_within_degrees":11.1929},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":160.6508},"karana":{"half_tithi_index":5,"name":"Gara"},"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":1963,"month":12,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438382.770833,"ahargana":1849917.2708,"kali_year":5065,"ayanamsa_lahiri":23.3496,"grahas":{"sun":{"sidereal_longitude":243.05820400000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":275.900304,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false,"latitude":-1.1923},"mars":{"sidereal_longitude":257.57300399999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":263.93770399999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":347.218104,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":271.29410400000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":296.52140399999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":82.4806,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":262.4806,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":1963,"month":12,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438382.770833,"kali_year":5065,"ahargana":1849917.2708,"sun":{"sidereal_longitude":242.7912,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":277.8596,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":35.0684,"elapsed_within_tithi_degrees":11.0684},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":277.8596,"elapsed_within_degrees":11.1929},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":160.6508},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.192,"elongation":35.068},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.192,"opposition_distance":144.932}},"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":10.20927818061947,"dayLengthDisplay":"10 Hours 12 Mins 33 Secs","nightLengthDisplay":"13 Hours 47 Mins 27 Secs","moonriseLocal":"09:13","moonsetLocal":"19:39","rahuKala":{"name":"Rāhu Kāla","start":"13:31","end":"14:48","startHours":13.51964593317529,"endHours":14.795805705752723,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:08","end":"08:25","startHours":7.138847070288121,"endHours":8.415006842865555,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:41","end":"10:58","startHours":9.691166615442988,"endHours":10.967326388020423,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:31","end":"09:52","startHours":9.521011979099331,"endHours":9.861321251786647,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:34","end":"07:50","startHours":7.564233661147266,"endHours":7.836481079297118,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:35","startHours":11.903176887910542,"endHours":12.583795433285173,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:47","end":"06:27","startHours":5.777609979538859,"endHours":6.45822852491349,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:17","end":"07:08","startHours":6.288073888569832,"endHours":7.138847070288121,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:38","startHours":13.945032524034435,"endHours":14.625651069409066,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:09","end":"17:33","startHours":17.148125250907594,"endHours":17.548125250907592,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:21","end":"17:46","startHours":17.348125250907593,"endHours":17.773511841766737,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:06","end":"18:51","startHours":17.098125250907593,"endHours":18.848125250907593,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:35","startHours":23.903176887910544,"endHours":24.58379543328517,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:08","end":"08:25","startHours":7.138847070288121,"endHours":8.415006842865555,"quality":"auspicious"},{"name":"Roga","start":"08:25","end":"09:41","startHours":8.415006842865555,"endHours":9.691166615442988,"quality":"inauspicious"},{"name":"Udveg","start":"09:41","end":"10:58","startHours":9.691166615442988,"endHours":10.967326388020423,"quality":"inauspicious"},{"name":"Chala","start":"10:58","end":"12:15","startHours":10.967326388020423,"endHours":12.243486160597858,"quality":"neutral"},{"name":"Labha","start":"12:15","end":"13:31","startHours":12.243486160597858,"endHours":13.51964593317529,"quality":"auspicious"},{"name":"Amṛta","start":"13:31","end":"14:48","startHours":13.51964593317529,"endHours":14.795805705752723,"quality":"auspicious"},{"name":"Kāla","start":"14:48","end":"16:04","startHours":14.795805705752723,"endHours":16.07196547833016,"quality":"inauspicious"},{"name":"Śubha","start":"16:04","end":"17:21","startHours":16.07196547833016,"endHours":17.348125250907593,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:21","end":"19:04","startHours":17.348125250907593,"endHours":19.07196547833016,"quality":"auspicious"},{"name":"Kāla","start":"19:04","end":"20:48","startHours":19.07196547833016,"endHours":20.795805705752727,"quality":"inauspicious"},{"name":"Śubha","start":"20:48","end":"22:31","startHours":20.795805705752727,"endHours":22.51964593317529,"quality":"auspicious"},{"name":"Roga","start":"22:31","end":"00:15","startHours":22.51964593317529,"endHours":24.243486160597858,"quality":"inauspicious"},{"name":"Udveg","start":"00:15","end":"01:58","startHours":24.243486160597858,"endHours":25.967326388020425,"quality":"inauspicious"},{"name":"Chala","start":"01:58","end":"03:41","startHours":25.967326388020425,"endHours":27.691166615442988,"quality":"neutral"},{"name":"Labha","start":"03:41","end":"05:25","startHours":27.691166615442988,"endHours":29.415006842865555,"quality":"auspicious"},{"name":"Amṛta","start":"05:25","end":"07:08","startHours":29.415006842865555,"endHours":31.138847070288122,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:08","end":"08:08","startHours":7.138847070288121,"endHours":8.138847070288122,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:08","end":"09:08","startHours":8.138847070288122,"endHours":9.138847070288122,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:08","end":"10:08","startHours":9.138847070288122,"endHours":10.138847070288122,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:08","end":"11:08","startHours":10.138847070288122,"endHours":11.138847070288122,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:08","end":"12:08","startHours":11.138847070288122,"endHours":12.138847070288122,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:08","end":"13:08","startHours":12.138847070288122,"endHours":13.138847070288122,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:08","end":"14:08","startHours":13.138847070288122,"endHours":14.138847070288122,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:08","end":"15:08","startHours":14.138847070288122,"endHours":15.138847070288122,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:08","end":"16:08","startHours":15.138847070288122,"endHours":16.138847070288122,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:08","end":"17:08","startHours":16.138847070288122,"endHours":17.138847070288122,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:08","end":"18:08","startHours":17.138847070288122,"endHours":18.138847070288122,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:08","end":"19:08","startHours":18.138847070288122,"endHours":19.138847070288122,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:08","end":"20:08","startHours":19.138847070288122,"endHours":20.138847070288122,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:08","end":"21:08","startHours":20.138847070288122,"endHours":21.138847070288122,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:08","end":"22:08","startHours":21.138847070288122,"endHours":22.138847070288122,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:08","end":"23:08","startHours":22.138847070288122,"endHours":23.138847070288122,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:08","end":"00:08","startHours":23.138847070288122,"endHours":24.138847070288122,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:08","end":"01:08","startHours":24.138847070288122,"endHours":25.138847070288122,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:08","end":"02:08","startHours":25.138847070288122,"endHours":26.138847070288122,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:08","end":"03:08","startHours":26.138847070288122,"endHours":27.138847070288122,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:08","end":"04:08","startHours":27.138847070288122,"endHours":28.138847070288122,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:08","end":"05:08","startHours":28.138847070288122,"endHours":29.138847070288122,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:08","end":"06:08","startHours":29.138847070288122,"endHours":30.138847070288122,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:08","end":"07:08","startHours":30.138847070288122,"endHours":31.138847070288122,"planetary_lord":"Moon"}],"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":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Vajra","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":-23.387710165516317,"eotMinutes":2.3204303641286352,"ayanamsa":23.3496}},"calendars":{"vikram_samvat":2020,"vikram_samvatsara":"Nala","saka_samvat":1885,"saka_samvatsara":"Śobhana","bengali_samvat":1370,"malayalam_era":1139,"nanakshahi_year":494,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Tṛtīyā · Vikram 2020 Nala · Śaka 1885 Śobhana"},"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":"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 19, 1963 CE · Ṛṣikeśa · Vidhyamitra","description":"December 19, 1963 CE for Ṛṣikeśa: Śukla Tṛtīyā, sūryodaya 07:08, sūryāsta 17:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1963-12-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1963-12-19","sa":"https://sa.vidhyamitra.com/city/rishikesh/1963-12-19","hi":"https://hi.vidhyamitra.com/city/rishikesh/1963-12-19","x-default":"https://vidhyamitra.com/city/rishikesh/1963-12-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T19:52:43.753Z","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":"2026-05-20T19:52:43.753Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T19:52:43.753Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}