{"id":"vidhyamitra:city-day:rishikesh:1927-05-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1927-05-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1927-05-31","date_display":"May 31, 1927 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":1927,"month":5,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2425031.770833,"kali_year":5029,"ahargana":1836566.2708,"sun":{"sidereal_longitude":45.8189,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":49.3911,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":3.5722,"elapsed_within_tithi_degrees":3.5722},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":49.3911,"elapsed_within_degrees":9.3911},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":95.21},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1927,"month":5,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2425031.770833,"ahargana":1836566.2708,"kali_year":5029,"ayanamsa_lahiri":22.839,"grahas":{"sun":{"sidereal_longitude":45.76771099999996,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":47.94311099999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false,"latitude":-1.5738},"mars":{"sidereal_longitude":94.30011100000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":59.550010999999984,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":337.728111,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":89.34641099999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":221.51241100000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":69.8808,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":249.8808,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","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":1927,"month":5,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2425031.770833,"kali_year":5029,"ahargana":1836566.2708,"sun":{"sidereal_longitude":45.8189,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":49.3911,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":3.5722,"elapsed_within_tithi_degrees":3.5722},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":49.3911,"elapsed_within_degrees":9.3911},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":95.21},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.574,"elongation":3.572},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.574,"opposition_distance":176.428}},"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":"19:12","solarNoonLocal":"12:14","dayLengthHours":13.922990372270354,"dayLengthDisplay":"13 Hours 55 Mins 23 Secs","nightLengthDisplay":"10 Hours 04 Mins 37 Secs","moonriseLocal":"05:26","moonsetLocal":"19:20","rahuKala":{"name":"Rāhu Kāla","start":"15:43","end":"17:28","startHours":15.721248147098594,"endHours":17.461621943632387,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:46","end":"10:30","startHours":8.759752960963418,"endHours":10.500126757497211,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:14","end":"13:59","startHours":12.240500554031005,"endHours":13.9808743505648,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:32","end":"09:00","startHours":8.527703121425578,"endHours":8.991802800501256,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:52","end":"06:14","startHours":5.8591299667404275,"endHours":6.23040971000097,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:47","end":"12:42","startHours":11.776400874955327,"endHours":12.704600233106683,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:25","end":"04:21","startHours":3.4226066515931155,"endHours":4.350806009744472,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:07","end":"05:17","startHours":4.118756170206633,"endHours":5.279005367895829,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:34","end":"15:29","startHours":14.560998949409399,"endHours":15.489198307560756,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:00","end":"19:24","startHours":19.001995740166183,"endHours":19.401995740166182,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:12","end":"19:47","startHours":19.201995740166183,"endHours":19.78212033901078,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:57","end":"20:42","startHours":18.951995740166183,"endHours":20.701995740166183,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:47","end":"00:42","startHours":23.776400874955325,"endHours":24.704600233106685,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:17","end":"07:01","startHours":5.279005367895829,"endHours":7.0193791644296235,"quality":"inauspicious"},{"name":"Udveg","start":"07:01","end":"08:46","startHours":7.0193791644296235,"endHours":8.759752960963418,"quality":"inauspicious"},{"name":"Chala","start":"08:46","end":"10:30","startHours":8.759752960963418,"endHours":10.500126757497211,"quality":"neutral"},{"name":"Labha","start":"10:30","end":"12:14","startHours":10.500126757497211,"endHours":12.240500554031005,"quality":"auspicious"},{"name":"Amṛta","start":"12:14","end":"13:59","startHours":12.240500554031005,"endHours":13.9808743505648,"quality":"auspicious"},{"name":"Kāla","start":"13:59","end":"15:43","startHours":13.9808743505648,"endHours":15.721248147098594,"quality":"inauspicious"},{"name":"Śubha","start":"15:43","end":"17:28","startHours":15.721248147098594,"endHours":17.461621943632387,"quality":"auspicious"},{"name":"Roga","start":"17:28","end":"19:12","startHours":17.461621943632387,"endHours":19.201995740166183,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:12","end":"20:28","startHours":19.201995740166183,"endHours":20.461621943632387,"quality":"inauspicious"},{"name":"Śubha","start":"20:28","end":"21:43","startHours":20.461621943632387,"endHours":21.721248147098596,"quality":"auspicious"},{"name":"Roga","start":"21:43","end":"22:59","startHours":21.721248147098596,"endHours":22.9808743505648,"quality":"inauspicious"},{"name":"Udveg","start":"22:59","end":"00:14","startHours":22.9808743505648,"endHours":24.240500554031005,"quality":"inauspicious"},{"name":"Chala","start":"00:14","end":"01:30","startHours":24.240500554031005,"endHours":25.500126757497213,"quality":"neutral"},{"name":"Labha","start":"01:30","end":"02:46","startHours":25.500126757497213,"endHours":26.759752960963418,"quality":"auspicious"},{"name":"Amṛta","start":"02:46","end":"04:01","startHours":26.759752960963418,"endHours":28.019379164429623,"quality":"auspicious"},{"name":"Kāla","start":"04:01","end":"05:17","startHours":28.019379164429623,"endHours":29.279005367895827,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:17","end":"06:17","startHours":5.279005367895829,"endHours":6.279005367895829,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:17","end":"07:17","startHours":6.279005367895829,"endHours":7.279005367895829,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:17","end":"08:17","startHours":7.279005367895829,"endHours":8.279005367895829,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:17","end":"09:17","startHours":8.279005367895829,"endHours":9.279005367895829,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:17","end":"10:17","startHours":9.279005367895829,"endHours":10.279005367895829,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:17","end":"11:17","startHours":10.279005367895829,"endHours":11.279005367895829,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:17","end":"12:17","startHours":11.279005367895829,"endHours":12.279005367895829,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:17","end":"13:17","startHours":12.279005367895829,"endHours":13.279005367895829,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:17","end":"14:17","startHours":13.279005367895829,"endHours":14.279005367895829,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:17","end":"15:17","startHours":14.279005367895829,"endHours":15.279005367895829,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:17","end":"16:17","startHours":15.279005367895829,"endHours":16.279005367895827,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:17","end":"17:17","startHours":16.279005367895827,"endHours":17.279005367895827,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:17","end":"18:17","startHours":17.279005367895827,"endHours":18.279005367895827,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:17","end":"19:17","startHours":18.279005367895827,"endHours":19.279005367895827,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:17","end":"20:17","startHours":19.279005367895827,"endHours":20.279005367895827,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:17","end":"21:17","startHours":20.279005367895827,"endHours":21.279005367895827,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:17","end":"22:17","startHours":21.279005367895827,"endHours":22.279005367895827,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:17","end":"23:17","startHours":22.279005367895827,"endHours":23.279005367895827,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:17","end":"00:17","startHours":23.279005367895827,"endHours":24.279005367895827,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:17","end":"01:17","startHours":24.279005367895827,"endHours":25.279005367895827,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:17","end":"02:17","startHours":25.279005367895827,"endHours":26.279005367895827,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:17","end":"03:17","startHours":26.279005367895827,"endHours":27.279005367895827,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:17","end":"04:17","startHours":27.279005367895827,"endHours":28.279005367895827,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:17","end":"05:17","startHours":28.279005367895827,"endHours":29.279005367895827,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":21.73585451125857,"eotMinutes":2.4995667581397525,"ayanamsa":22.839}},"calendars":{"vikram_samvat":1984,"vikram_samvatsara":"Vikrama","saka_samvat":1849,"saka_samvatsara":"Prabhava","bengali_samvat":1334,"malayalam_era":1103,"nanakshahi_year":458,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Jyeṣṭha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Śukla Pratipada · Vikram 1984 Vikrama · Śaka 1849 Prabhava"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","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 May 31, 1927 CE · Ṛṣikeśa · Vidhyamitra","description":"May 31, 1927 CE for Ṛṣikeśa: Śukla Pratipada, sūryodaya 05:17, sūryāsta 19:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1927-05-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1927-05-31","sa":"https://sa.vidhyamitra.com/city/rishikesh/1927-05-31","hi":"https://hi.vidhyamitra.com/city/rishikesh/1927-05-31","x-default":"https://vidhyamitra.com/city/rishikesh/1927-05-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T13:26:01.698Z","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":"2026-05-31T13:26:01.698Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T13:26:01.698Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}