{"id":"vidhyamitra:city-day:rishikesh:1966-01-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1966-01-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1966-01-08","date_display":"January 8, 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":1,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2439133.770833,"kali_year":5067,"ahargana":1850668.2708,"sun":{"sidereal_longitude":263.8429,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":93.6438,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":189.8009,"elapsed_within_tithi_degrees":9.8009},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":93.6438,"elapsed_within_degrees":0.3104},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":357.4867},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2439133.770833,"ahargana":1850668.2708,"kali_year":5067,"ayanamsa_lahiri":23.3783,"grahas":{"sun":{"sidereal_longitude":263.93311100000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":95.56911100000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false,"latitude":3.4935},"mars":{"sidereal_longitude":289.537111,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":247.46241099999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":60.79411099999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":290.784711,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":320.29861099999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":42.689,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":222.689,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":1966,"month":1,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2439133.770833,"kali_year":5067,"ahargana":1850668.2708,"sun":{"sidereal_longitude":263.8429,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":93.6438,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":189.8009,"elapsed_within_tithi_degrees":9.8009},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":93.6438,"elapsed_within_degrees":0.3104},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":357.4867},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.493,"elongation":170.199},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.493,"opposition_distance":9.801}},"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":"07:14","sunsetLocal":"17:33","solarNoonLocal":"12:24","dayLengthHours":10.308230220753417,"dayLengthDisplay":"10 Hours 18 Mins 30 Secs","nightLengthDisplay":"13 Hours 41 Mins 30 Secs","moonriseLocal":"18:18","moonsetLocal":"08:03","rahuKala":{"name":"Rāhu Kāla","start":"09:49","end":"11:06","startHours":9.816798338700435,"endHours":11.105327116294614,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:41","end":"14:58","startHours":13.682384671482968,"endHours":14.970913449077145,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:14","end":"08:32","startHours":7.239740783512081,"endHours":8.528269561106258,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:39","end":"09:59","startHours":9.64499450168788,"endHours":9.988602175712993,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:40","end":"07:57","startHours":7.669250376043474,"endHours":7.944136515263565,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:44","startHours":12.050248219863676,"endHours":12.737463567913903,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:52","end":"06:33","startHours":5.8653100874116255,"endHours":6.552525435461853,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:23","end":"07:14","startHours":6.380721598449297,"endHours":7.239740783512081,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:07","end":"14:48","startHours":14.11189426401436,"endHours":14.799109612064587,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:21","end":"17:45","startHours":17.3479710042655,"endHours":17.747971004265498,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:33","end":"17:59","startHours":17.5479710042655,"endHours":17.97748059679689,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:18","end":"19:03","startHours":17.2979710042655,"endHours":19.0479710042655,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:44","startHours":24.050248219863676,"endHours":24.737463567913906,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:14","end":"08:32","startHours":7.239740783512081,"endHours":8.528269561106258,"quality":"inauspicious"},{"name":"Śubha","start":"08:32","end":"09:49","startHours":8.528269561106258,"endHours":9.816798338700435,"quality":"auspicious"},{"name":"Roga","start":"09:49","end":"11:06","startHours":9.816798338700435,"endHours":11.105327116294614,"quality":"inauspicious"},{"name":"Udveg","start":"11:06","end":"12:24","startHours":11.105327116294614,"endHours":12.39385589388879,"quality":"inauspicious"},{"name":"Chala","start":"12:24","end":"13:41","startHours":12.39385589388879,"endHours":13.682384671482968,"quality":"neutral"},{"name":"Labha","start":"13:41","end":"14:58","startHours":13.682384671482968,"endHours":14.970913449077145,"quality":"auspicious"},{"name":"Amṛta","start":"14:58","end":"16:16","startHours":14.970913449077145,"endHours":16.25944222667132,"quality":"auspicious"},{"name":"Kāla","start":"16:16","end":"17:33","startHours":16.25944222667132,"endHours":17.5479710042655,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:33","end":"19:16","startHours":17.5479710042655,"endHours":19.25944222667132,"quality":"auspicious"},{"name":"Amṛta","start":"19:16","end":"20:58","startHours":19.25944222667132,"endHours":20.970913449077145,"quality":"auspicious"},{"name":"Kāla","start":"20:58","end":"22:41","startHours":20.970913449077145,"endHours":22.682384671482968,"quality":"inauspicious"},{"name":"Śubha","start":"22:41","end":"00:24","startHours":22.682384671482968,"endHours":24.39385589388879,"quality":"auspicious"},{"name":"Roga","start":"00:24","end":"02:06","startHours":24.39385589388879,"endHours":26.10532711629461,"quality":"inauspicious"},{"name":"Udveg","start":"02:06","end":"03:49","startHours":26.10532711629461,"endHours":27.816798338700437,"quality":"inauspicious"},{"name":"Chala","start":"03:49","end":"05:32","startHours":27.816798338700437,"endHours":29.528269561106256,"quality":"neutral"},{"name":"Labha","start":"05:32","end":"07:14","startHours":29.528269561106256,"endHours":31.239740783512083,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:14","end":"08:14","startHours":7.239740783512081,"endHours":8.239740783512081,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:14","end":"09:14","startHours":8.239740783512081,"endHours":9.239740783512081,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:14","end":"10:14","startHours":9.239740783512081,"endHours":10.239740783512081,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:14","end":"11:14","startHours":10.239740783512081,"endHours":11.239740783512081,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:14","end":"12:14","startHours":11.239740783512081,"endHours":12.239740783512081,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:14","end":"13:14","startHours":12.239740783512081,"endHours":13.239740783512081,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:14","end":"14:14","startHours":13.239740783512081,"endHours":14.239740783512081,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:14","end":"15:14","startHours":14.239740783512081,"endHours":15.239740783512081,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:14","end":"16:14","startHours":15.239740783512081,"endHours":16.239740783512083,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:14","end":"17:14","startHours":16.239740783512083,"endHours":17.239740783512083,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:14","end":"18:14","startHours":17.239740783512083,"endHours":18.239740783512083,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:14","end":"19:14","startHours":18.239740783512083,"endHours":19.239740783512083,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:14","end":"20:14","startHours":19.239740783512083,"endHours":20.239740783512083,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:14","end":"21:14","startHours":20.239740783512083,"endHours":21.239740783512083,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:14","end":"22:14","startHours":21.239740783512083,"endHours":22.239740783512083,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:14","end":"23:14","startHours":22.239740783512083,"endHours":23.239740783512083,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:14","end":"00:14","startHours":23.239740783512083,"endHours":24.239740783512083,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:14","end":"01:14","startHours":24.239740783512083,"endHours":25.239740783512083,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:14","end":"02:14","startHours":25.239740783512083,"endHours":26.239740783512083,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:14","end":"03:14","startHours":26.239740783512083,"endHours":27.239740783512083,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:14","end":"04:14","startHours":27.239740783512083,"endHours":28.239740783512083,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:14","end":"05:14","startHours":28.239740783512083,"endHours":29.239740783512083,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:14","end":"06:14","startHours":29.239740783512083,"endHours":30.239740783512083,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:14","end":"07:14","startHours":30.239740783512083,"endHours":31.239740783512083,"planetary_lord":"Mercury"}],"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","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"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":-22.316079730505784,"eotMinutes":-6.7017536333273355,"ayanamsa":23.3783}},"calendars":{"vikram_samvat":2023,"vikram_samvatsara":"Siddhārthī","saka_samvat":1888,"saka_samvatsara":"Parābhava","bengali_samvat":1373,"malayalam_era":1142,"nanakshahi_year":497,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Pratipada · Vikram 2023 Siddhārthī · Śaka 1888 Parābhava"},"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":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 January 8, 1966 CE · Ṛṣikeśa · Vidhyamitra","description":"January 8, 1966 CE for Ṛṣikeśa: Kṛṣṇa Pratipada, sūryodaya 07:14, sūryāsta 17:33.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1966-01-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1966-01-08","sa":"https://sa.vidhyamitra.com/city/rishikesh/1966-01-08","hi":"https://hi.vidhyamitra.com/city/rishikesh/1966-01-08","x-default":"https://vidhyamitra.com/city/rishikesh/1966-01-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T00:18:49.469Z","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":"2026-05-20T00:18:49.469Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T00:18:49.469Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}