{"id":"vidhyamitra:city-day:rishikesh:1958-01-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1958-01-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1958-01-06","date_display":"January 6, 1958 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":1958,"month":1,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436209.770833,"kali_year":5059,"ahargana":1847744.2708,"sun":{"sidereal_longitude":261.8591,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":83.0911,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":181.232,"elapsed_within_tithi_degrees":1.232},"nakshatra":{"number":7,"name":"Punarvasu","pada":1,"moon_longitude":83.0911,"elapsed_within_degrees":3.0911},"yoga":{"number":26,"name":"Indra","sum_longitude":344.9502},"karana":{"half_tithi_index":30,"name":"Bālava"},"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":1958,"month":1,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2436209.770833,"ahargana":1847744.2708,"kali_year":5059,"ayanamsa_lahiri":23.2665,"grahas":{"sun":{"sidereal_longitude":261.9473290000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":84.690629,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false,"latitude":-4.0933},"mars":{"sidereal_longitude":227.04852900000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":242.453129,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":186.21772899999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":293.48772899999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":237.15832899999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":197.6166,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":17.6166,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":1958,"month":1,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2436209.770833,"kali_year":5059,"ahargana":1847744.2708,"sun":{"sidereal_longitude":261.8591,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":83.0911,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":181.232,"elapsed_within_tithi_degrees":1.232},"nakshatra":{"number":7,"name":"Punarvasu","pada":1,"moon_longitude":83.0911,"elapsed_within_degrees":3.0911},"yoga":{"number":26,"name":"Indra","sum_longitude":344.9502},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.093,"elongation":178.768},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.093,"opposition_distance":1.232}},"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":"17:31","solarNoonLocal":"12:23","dayLengthHours":10.285052530433608,"dayLengthDisplay":"10 Hours 17 Mins 06 Secs","nightLengthDisplay":"13 Hours 42 Mins 54 Secs","moonriseLocal":"17:36","moonsetLocal":"07:32","rahuKala":{"name":"Rāhu Kāla","start":"08:31","end":"09:49","startHours":8.523192319536959,"endHours":9.80882388584116,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:06","end":"12:23","startHours":11.094455452145361,"endHours":12.380087018449561,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:40","end":"14:57","startHours":13.665718584753764,"endHours":14.951350151057964,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"09:59","startHours":9.637406343667266,"endHours":9.980241428015054,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:40","end":"07:56","startHours":7.666104608667492,"endHours":7.940372676145722,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:43","startHours":12.037251934101777,"endHours":12.72292210279735,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:52","end":"06:33","startHours":5.86622041584161,"endHours":6.551890584537184,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:23","end":"07:14","startHours":6.380473042363291,"endHours":7.237560753232758,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:06","end":"14:47","startHours":14.094262440188498,"endHours":14.77993260888407,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:19","end":"17:43","startHours":17.322613283666367,"endHours":17.722613283666366,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:31","end":"17:57","startHours":17.522613283666367,"endHours":17.9511571391011,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:16","end":"19:01","startHours":17.272613283666367,"endHours":19.022613283666367,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:43","startHours":24.03725193410178,"endHours":24.72292210279735,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:14","end":"08:31","startHours":7.237560753232758,"endHours":8.523192319536959,"quality":"auspicious"},{"name":"Kāla","start":"08:31","end":"09:49","startHours":8.523192319536959,"endHours":9.80882388584116,"quality":"inauspicious"},{"name":"Śubha","start":"09:49","end":"11:06","startHours":9.80882388584116,"endHours":11.094455452145361,"quality":"auspicious"},{"name":"Roga","start":"11:06","end":"12:23","startHours":11.094455452145361,"endHours":12.380087018449561,"quality":"inauspicious"},{"name":"Udveg","start":"12:23","end":"13:40","startHours":12.380087018449561,"endHours":13.665718584753764,"quality":"inauspicious"},{"name":"Chala","start":"13:40","end":"14:57","startHours":13.665718584753764,"endHours":14.951350151057964,"quality":"neutral"},{"name":"Labha","start":"14:57","end":"16:14","startHours":14.951350151057964,"endHours":16.236981717362166,"quality":"auspicious"},{"name":"Amṛta","start":"16:14","end":"17:31","startHours":16.236981717362166,"endHours":17.522613283666367,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:31","end":"19:14","startHours":17.522613283666367,"endHours":19.236981717362166,"quality":"neutral"},{"name":"Labha","start":"19:14","end":"20:57","startHours":19.236981717362166,"endHours":20.951350151057966,"quality":"auspicious"},{"name":"Amṛta","start":"20:57","end":"22:40","startHours":20.951350151057966,"endHours":22.665718584753762,"quality":"auspicious"},{"name":"Kāla","start":"22:40","end":"00:23","startHours":22.665718584753762,"endHours":24.38008701844956,"quality":"inauspicious"},{"name":"Śubha","start":"00:23","end":"02:06","startHours":24.38008701844956,"endHours":26.09445545214536,"quality":"auspicious"},{"name":"Roga","start":"02:06","end":"03:49","startHours":26.09445545214536,"endHours":27.80882388584116,"quality":"inauspicious"},{"name":"Udveg","start":"03:49","end":"05:31","startHours":27.80882388584116,"endHours":29.52319231953696,"quality":"inauspicious"},{"name":"Chala","start":"05:31","end":"07:14","startHours":29.52319231953696,"endHours":31.237560753232756,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:14","end":"08:14","startHours":7.237560753232758,"endHours":8.237560753232758,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:14","end":"09:14","startHours":8.237560753232758,"endHours":9.237560753232758,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:14","end":"10:14","startHours":9.237560753232758,"endHours":10.237560753232758,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:14","end":"11:14","startHours":10.237560753232758,"endHours":11.237560753232758,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:14","end":"12:14","startHours":11.237560753232758,"endHours":12.237560753232758,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:14","end":"13:14","startHours":12.237560753232758,"endHours":13.237560753232758,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:14","end":"14:14","startHours":13.237560753232758,"endHours":14.237560753232758,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:14","end":"15:14","startHours":14.237560753232758,"endHours":15.237560753232758,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:14","end":"16:14","startHours":15.237560753232758,"endHours":16.237560753232756,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:14","end":"17:14","startHours":16.237560753232756,"endHours":17.237560753232756,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:14","end":"18:14","startHours":17.237560753232756,"endHours":18.237560753232756,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:14","end":"19:14","startHours":18.237560753232756,"endHours":19.237560753232756,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:14","end":"20:14","startHours":19.237560753232756,"endHours":20.237560753232756,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:14","end":"21:14","startHours":20.237560753232756,"endHours":21.237560753232756,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:14","end":"22:14","startHours":21.237560753232756,"endHours":22.237560753232756,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:14","end":"23:14","startHours":22.237560753232756,"endHours":23.237560753232756,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:14","end":"00:14","startHours":23.237560753232756,"endHours":24.237560753232756,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:14","end":"01:14","startHours":24.237560753232756,"endHours":25.237560753232756,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:14","end":"02:14","startHours":25.237560753232756,"endHours":26.237560753232756,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:14","end":"03:14","startHours":26.237560753232756,"endHours":27.237560753232756,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:14","end":"04:14","startHours":27.237560753232756,"endHours":28.237560753232756,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:14","end":"05:14","startHours":28.237560753232756,"endHours":29.237560753232756,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:14","end":"06:14","startHours":29.237560753232756,"endHours":30.237560753232756,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:14","end":"07:14","startHours":30.237560753232756,"endHours":31.237560753232756,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"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":"North-East","anandadiYoga":{"name":"Chatra","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":-22.568841352853667,"eotMinutes":-5.875621106973772,"ayanamsa":23.2665}},"calendars":{"vikram_samvat":2015,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1880,"saka_samvatsara":"Vilambī","bengali_samvat":1365,"malayalam_era":1134,"nanakshahi_year":489,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Pratipada · Vikram 2015 Virodhakṛt · Śaka 1880 Vilambī"},"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":"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":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","url":"/day/-1626101-04-03","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 6, 1958 CE · Ṛṣikeśa · Vidhyamitra","description":"January 6, 1958 CE for Ṛṣikeśa: Kṛṣṇa Pratipada, sūryodaya 07:14, sūryāsta 17:31.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1958-01-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1958-01-06","sa":"https://sa.vidhyamitra.com/city/rishikesh/1958-01-06","hi":"https://hi.vidhyamitra.com/city/rishikesh/1958-01-06","x-default":"https://vidhyamitra.com/city/rishikesh/1958-01-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T12:39:56.578Z","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":"2026-05-20T12:39:56.578Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T12:39:56.578Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}