{"id":"vidhyamitra:city-day:rishikesh:1950-05-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1950-05-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1950-05-28","date_display":"May 28, 1950 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":1950,"month":5,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2433429.770833,"kali_year":5052,"ahargana":1844964.2708,"sun":{"sidereal_longitude":43.008,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":176.7232,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":133.7153,"elapsed_within_tithi_degrees":1.7153},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":176.7232,"elapsed_within_degrees":3.3899},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":219.7312},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1950,"month":5,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2433429.770833,"ahargana":1844964.2708,"kali_year":5052,"ayanamsa_lahiri":23.1602,"grahas":{"sun":{"sidereal_longitude":42.99174500000004,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":174.003245,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false,"latitude":-0.92},"mars":{"sidereal_longitude":152.81244500000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":25.93384500000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":313.856945,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":2.357644999999991,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":139.847245,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":344.9143,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":164.9143,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":1950,"month":5,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2433429.770833,"kali_year":5052,"ahargana":1844964.2708,"sun":{"sidereal_longitude":43.008,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":176.7232,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":133.7153,"elapsed_within_tithi_degrees":1.7153},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":176.7232,"elapsed_within_degrees":3.3899},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":219.7312},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.92,"elongation":133.715},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.92,"opposition_distance":46.285}},"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":"05:17","sunsetLocal":"19:11","solarNoonLocal":"12:14","dayLengthHours":13.885405391433935,"dayLengthDisplay":"13 Hours 53 Mins 07 Secs","nightLengthDisplay":"10 Hours 06 Mins 53 Secs","moonriseLocal":"15:11","moonsetLocal":"02:45","rahuKala":{"name":"Rāhu Kāla","start":"17:26","end":"19:11","startHours":17.440990129616942,"endHours":19.176665803546186,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:14","end":"13:58","startHours":12.233963107829219,"endHours":13.969638781758459,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:42","end":"17:26","startHours":15.705314455687702,"endHours":17.440990129616942,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:32","end":"09:00","startHours":8.531188336780168,"endHours":8.9940351831613,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:52","end":"06:14","startHours":5.869818970088664,"endHours":6.240096447193569,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:42","startHours":11.771116261448087,"endHours":12.69680995421035,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:26","end":"04:22","startHours":3.4398730265877258,"endHours":4.365566719349988,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:08","end":"05:17","startHours":4.134143296159422,"endHours":5.29126041211225,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:33","end":"15:28","startHours":14.548197339734873,"endHours":15.473891032497136,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:59","end":"19:23","startHours":18.976665803546187,"endHours":19.376665803546185,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:11","end":"19:45","startHours":19.176665803546186,"endHours":19.7552243615226,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:56","end":"20:41","startHours":18.926665803546186,"endHours":20.676665803546186,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:42","startHours":23.77111626144809,"endHours":24.696809954210348,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:17","end":"07:02","startHours":5.29126041211225,"endHours":7.026936086041492,"quality":"inauspicious"},{"name":"Chala","start":"07:02","end":"08:46","startHours":7.026936086041492,"endHours":8.762611759970735,"quality":"neutral"},{"name":"Labha","start":"08:46","end":"10:30","startHours":8.762611759970735,"endHours":10.498287433899975,"quality":"auspicious"},{"name":"Amṛta","start":"10:30","end":"12:14","startHours":10.498287433899975,"endHours":12.233963107829219,"quality":"auspicious"},{"name":"Kāla","start":"12:14","end":"13:58","startHours":12.233963107829219,"endHours":13.969638781758459,"quality":"inauspicious"},{"name":"Śubha","start":"13:58","end":"15:42","startHours":13.969638781758459,"endHours":15.705314455687702,"quality":"auspicious"},{"name":"Roga","start":"15:42","end":"17:26","startHours":15.705314455687702,"endHours":17.440990129616942,"quality":"inauspicious"},{"name":"Udveg","start":"17:26","end":"19:11","startHours":17.440990129616942,"endHours":19.176665803546186,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:11","end":"20:26","startHours":19.176665803546186,"endHours":20.440990129616942,"quality":"auspicious"},{"name":"Roga","start":"20:26","end":"21:42","startHours":20.440990129616942,"endHours":21.705314455687702,"quality":"inauspicious"},{"name":"Udveg","start":"21:42","end":"22:58","startHours":21.705314455687702,"endHours":22.969638781758462,"quality":"inauspicious"},{"name":"Chala","start":"22:58","end":"00:14","startHours":22.969638781758462,"endHours":24.23396310782922,"quality":"neutral"},{"name":"Labha","start":"00:14","end":"01:30","startHours":24.23396310782922,"endHours":25.498287433899975,"quality":"auspicious"},{"name":"Amṛta","start":"01:30","end":"02:46","startHours":25.498287433899975,"endHours":26.762611759970735,"quality":"auspicious"},{"name":"Kāla","start":"02:46","end":"04:02","startHours":26.762611759970735,"endHours":28.026936086041495,"quality":"inauspicious"},{"name":"Śubha","start":"04:02","end":"05:17","startHours":28.026936086041495,"endHours":29.29126041211225,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:17","end":"06:17","startHours":5.29126041211225,"endHours":6.29126041211225,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:17","end":"07:17","startHours":6.29126041211225,"endHours":7.29126041211225,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:17","end":"08:17","startHours":7.29126041211225,"endHours":8.291260412112251,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:17","end":"09:17","startHours":8.291260412112251,"endHours":9.291260412112251,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:17","end":"10:17","startHours":9.291260412112251,"endHours":10.291260412112251,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:17","end":"11:17","startHours":10.291260412112251,"endHours":11.291260412112251,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:17","end":"12:17","startHours":11.291260412112251,"endHours":12.291260412112251,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:17","end":"13:17","startHours":12.291260412112251,"endHours":13.291260412112251,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:17","end":"14:17","startHours":13.291260412112251,"endHours":14.291260412112251,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:17","end":"15:17","startHours":14.291260412112251,"endHours":15.291260412112251,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:17","end":"16:17","startHours":15.291260412112251,"endHours":16.29126041211225,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:17","end":"17:17","startHours":16.29126041211225,"endHours":17.29126041211225,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:17","end":"18:17","startHours":17.29126041211225,"endHours":18.29126041211225,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:17","end":"19:17","startHours":18.29126041211225,"endHours":19.29126041211225,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:17","end":"20:17","startHours":19.29126041211225,"endHours":20.29126041211225,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:17","end":"21:17","startHours":20.29126041211225,"endHours":21.29126041211225,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:17","end":"22:17","startHours":21.29126041211225,"endHours":22.29126041211225,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:17","end":"23:17","startHours":22.29126041211225,"endHours":23.29126041211225,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:17","end":"00:17","startHours":23.29126041211225,"endHours":24.29126041211225,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:17","end":"01:17","startHours":24.29126041211225,"endHours":25.29126041211225,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:17","end":"02:17","startHours":25.29126041211225,"endHours":26.29126041211225,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:17","end":"03:17","startHours":26.29126041211225,"endHours":27.29126041211225,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:17","end":"04:17","startHours":27.29126041211225,"endHours":28.29126041211225,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:17","end":"05:17","startHours":28.29126041211225,"endHours":29.29126041211225,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"drikRitu":"Grīṣma (Summer) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":21.332177606430733,"eotMinutes":2.8918135302468597,"ayanamsa":23.1602}},"calendars":{"vikram_samvat":2007,"vikram_samvatsara":"Śobhana","saka_samvat":1872,"saka_samvatsara":"Vikṛti","bengali_samvat":1357,"malayalam_era":1126,"nanakshahi_year":481,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Śukla Pakṣa","solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Śukla Dvādaśī · Vikram 2007 Śobhana · Śaka 1872 Vikṛti"},"festivals":[{"id":"vrishabha-sankranti","name":"Vṛṣabha Saṅkrānti","name_sanskrit":"वृषभ सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Taurus.","vrata":false,"detection":{"sun_rashi":"Vṛṣabha"},"precedence":5}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 May 28, 1950 CE · Ṛṣikeśa · Vidhyamitra","description":"May 28, 1950 CE for Ṛṣikeśa: Śukla Dvādaśī, sūryodaya 05:17, sūryāsta 19:11.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1950-05-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1950-05-28","sa":"https://sa.vidhyamitra.com/city/rishikesh/1950-05-28","hi":"https://hi.vidhyamitra.com/city/rishikesh/1950-05-28","x-default":"https://vidhyamitra.com/city/rishikesh/1950-05-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T06:24:32.823Z","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":"2026-05-21T06:24:32.823Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T06:24:32.823Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}