{"id":"vidhyamitra:city-day:rishikesh:1955-01-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1955-01-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1955-01-08","date_display":"January 8, 1955 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":1955,"month":1,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2435115.770833,"kali_year":5056,"ahargana":1846650.2708,"sun":{"sidereal_longitude":263.6849,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":78.6946,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":175.0097,"elapsed_within_tithi_degrees":7.0097},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":78.6946,"elapsed_within_degrees":12.0279},"yoga":{"number":26,"name":"Indra","sum_longitude":342.3795},"karana":{"half_tithi_index":29,"name":"Bava"},"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":1955,"month":1,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2435115.770833,"ahargana":1846650.2708,"kali_year":5056,"ayanamsa_lahiri":23.2246,"grahas":{"sun":{"sidereal_longitude":263.750728,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":77.15252799999996,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false,"latitude":-0.2441},"mars":{"sidereal_longitude":332.256128,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":272.6107280000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":92.637228,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":true},"venus":{"sidereal_longitude":218.79042800000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":206.03032800000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":255.5819,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":75.5819,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":1955,"month":1,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2435115.770833,"kali_year":5056,"ahargana":1846650.2708,"sun":{"sidereal_longitude":263.6849,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":78.6946,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":175.0097,"elapsed_within_tithi_degrees":7.0097},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":78.6946,"elapsed_within_degrees":12.0279},"yoga":{"number":26,"name":"Indra","sum_longitude":342.3795},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.244,"elongation":175.01},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.244,"opposition_distance":4.99}},"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":"07:15","sunsetLocal":"17:33","solarNoonLocal":"12:24","dayLengthHours":10.304330922971733,"dayLengthDisplay":"10 Hours 18 Mins 16 Secs","nightLengthDisplay":"13 Hours 41 Mins 44 Secs","moonriseLocal":"16:57","moonsetLocal":"06:57","rahuKala":{"name":"Rāhu Kāla","start":"09:49","end":"11:06","startHours":9.817773163145857,"endHours":11.105814528517323,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:41","end":"14:58","startHours":13.681897259260257,"endHours":14.969938624631723,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:15","end":"08:32","startHours":7.241690432402923,"endHours":8.52973179777439,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:39","end":"09:59","startHours":9.646034314429661,"endHours":9.989512011862052,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:40","end":"07:57","startHours":7.671037554193412,"endHours":7.9458197121393255,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:44","startHours":12.050378196456398,"endHours":12.73733359132118,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:52","end":"06:33","startHours":5.867779642673359,"endHours":6.5547350375381415,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:23","end":"07:15","startHours":6.382996188821946,"endHours":7.241690432402923,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:07","end":"14:48","startHours":14.111244381050746,"endHours":14.798199775915528,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:21","end":"17:45","startHours":17.346021355374656,"endHours":17.746021355374655,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:33","end":"17:59","startHours":17.546021355374656,"endHours":17.975368477165144,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:18","end":"19:03","startHours":17.296021355374656,"endHours":19.046021355374656,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:44","startHours":24.0503781964564,"endHours":24.737333591321182,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:15","end":"08:32","startHours":7.241690432402923,"endHours":8.52973179777439,"quality":"inauspicious"},{"name":"Śubha","start":"08:32","end":"09:49","startHours":8.52973179777439,"endHours":9.817773163145857,"quality":"auspicious"},{"name":"Roga","start":"09:49","end":"11:06","startHours":9.817773163145857,"endHours":11.105814528517323,"quality":"inauspicious"},{"name":"Udveg","start":"11:06","end":"12:24","startHours":11.105814528517323,"endHours":12.39385589388879,"quality":"inauspicious"},{"name":"Chala","start":"12:24","end":"13:41","startHours":12.39385589388879,"endHours":13.681897259260257,"quality":"neutral"},{"name":"Labha","start":"13:41","end":"14:58","startHours":13.681897259260257,"endHours":14.969938624631723,"quality":"auspicious"},{"name":"Amṛta","start":"14:58","end":"16:15","startHours":14.969938624631723,"endHours":16.25797999000319,"quality":"auspicious"},{"name":"Kāla","start":"16:15","end":"17:33","startHours":16.25797999000319,"endHours":17.546021355374656,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:33","end":"19:15","startHours":17.546021355374656,"endHours":19.25797999000319,"quality":"auspicious"},{"name":"Amṛta","start":"19:15","end":"20:58","startHours":19.25797999000319,"endHours":20.969938624631723,"quality":"auspicious"},{"name":"Kāla","start":"20:58","end":"22:41","startHours":20.969938624631723,"endHours":22.681897259260253,"quality":"inauspicious"},{"name":"Śubha","start":"22:41","end":"00:24","startHours":22.681897259260253,"endHours":24.39385589388879,"quality":"auspicious"},{"name":"Roga","start":"00:24","end":"02:06","startHours":24.39385589388879,"endHours":26.10581452851732,"quality":"inauspicious"},{"name":"Udveg","start":"02:06","end":"03:49","startHours":26.10581452851732,"endHours":27.817773163145855,"quality":"inauspicious"},{"name":"Chala","start":"03:49","end":"05:32","startHours":27.817773163145855,"endHours":29.52973179777439,"quality":"neutral"},{"name":"Labha","start":"05:32","end":"07:15","startHours":29.52973179777439,"endHours":31.241690432402923,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:15","end":"08:15","startHours":7.241690432402923,"endHours":8.241690432402923,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:15","end":"09:15","startHours":8.241690432402923,"endHours":9.241690432402923,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:15","end":"10:15","startHours":9.241690432402923,"endHours":10.241690432402923,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:15","end":"11:15","startHours":10.241690432402923,"endHours":11.241690432402923,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:15","end":"12:15","startHours":11.241690432402923,"endHours":12.241690432402923,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:15","end":"13:15","startHours":12.241690432402923,"endHours":13.241690432402923,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:15","end":"14:15","startHours":13.241690432402923,"endHours":14.241690432402923,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:15","end":"15:15","startHours":14.241690432402923,"endHours":15.241690432402923,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:15","end":"16:15","startHours":15.241690432402923,"endHours":16.241690432402923,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:15","end":"17:15","startHours":16.241690432402923,"endHours":17.241690432402923,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:15","end":"18:15","startHours":17.241690432402923,"endHours":18.241690432402923,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:15","end":"19:15","startHours":18.241690432402923,"endHours":19.241690432402923,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:15","end":"20:15","startHours":19.241690432402923,"endHours":20.241690432402923,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:15","end":"21:15","startHours":20.241690432402923,"endHours":21.241690432402923,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:15","end":"22:15","startHours":21.241690432402923,"endHours":22.241690432402923,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:15","end":"23:15","startHours":22.241690432402923,"endHours":23.241690432402923,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:15","end":"00:15","startHours":23.241690432402923,"endHours":24.241690432402923,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:15","end":"01:15","startHours":24.241690432402923,"endHours":25.241690432402923,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:15","end":"02:15","startHours":25.241690432402923,"endHours":26.241690432402923,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:15","end":"03:15","startHours":26.241690432402923,"endHours":27.241690432402923,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:15","end":"04:15","startHours":27.241690432402923,"endHours":28.241690432402923,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:15","end":"05:15","startHours":28.241690432402923,"endHours":29.241690432402923,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:15","end":"06:15","startHours":29.241690432402923,"endHours":30.241690432402923,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:15","end":"07:15","startHours":30.241690432402923,"endHours":31.241690432402923,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"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":-22.358677525617427,"eotMinutes":-6.7017536333273355,"ayanamsa":23.2246}},"calendars":{"vikram_samvat":2012,"vikram_samvatsara":"Kīlaka","saka_samvat":1877,"saka_samvatsara":"Manmatha","bengali_samvat":1362,"malayalam_era":1131,"nanakshahi_year":486,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Pūrṇimā · Vikram 2012 Kīlaka · Śaka 1877 Manmatha"},"festivals":[{"id":"paush-purnima","name":"Pauṣa Pūrṇimā (Śākambharī Devī Jayantī)","name_sanskrit":"पौष पूर्णिमा","tradition":"Pan-Hindu","associated_deity":"Devī Śākambharī","significance":"Manifestation of Devī Śākambharī (vegetation-mother).","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Pauṣa"},"precedence":3},{"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":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","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 January 8, 1955 CE · Ṛṣikeśa · Vidhyamitra","description":"January 8, 1955 CE for Ṛṣikeśa: Śukla Pūrṇimā, sūryodaya 07:15, sūryāsta 17:33.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1955-01-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1955-01-08","sa":"https://sa.vidhyamitra.com/city/rishikesh/1955-01-08","hi":"https://hi.vidhyamitra.com/city/rishikesh/1955-01-08","x-default":"https://vidhyamitra.com/city/rishikesh/1955-01-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T12:39:08.497Z","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":"2026-05-20T12:39:08.497Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T12:39:08.497Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}