{"id":"vidhyamitra:city-day:rishikesh:1951-08-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1951-08-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1951-08-17","date_display":"August 17, 1951 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":1951,"month":8,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2433875.770833,"kali_year":5053,"ahargana":1845410.2708,"sun":{"sidereal_longitude":119.6558,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":299.8044,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":180.1485,"elapsed_within_tithi_degrees":0.1485},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":299.8044,"elapsed_within_degrees":6.471},"yoga":{"number":5,"name":"Śobhana","sum_longitude":59.4602},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1951,"month":8,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2433875.770833,"ahargana":1845410.2708,"kali_year":5053,"ayanamsa_lahiri":23.1772,"grahas":{"sun":{"sidereal_longitude":120.16130499999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":298.97660500000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false,"latitude":-1.6462},"mars":{"sidereal_longitude":96.62600499999996,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":142.76890500000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":351.398005,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":145.56070499999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":157.42710499999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":321.2831,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":141.2831,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":1951,"month":8,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2433875.770833,"kali_year":5053,"ahargana":1845410.2708,"sun":{"sidereal_longitude":119.6558,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":299.8044,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":180.1485,"elapsed_within_tithi_degrees":0.1485},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":299.8044,"elapsed_within_degrees":6.471},"yoga":{"number":5,"name":"Śobhana","sum_longitude":59.4602},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.646,"elongation":179.851},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.646,"opposition_distance":0.149}},"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":"05:44","sunsetLocal":"18:57","solarNoonLocal":"12:21","dayLengthHours":13.219374645522606,"dayLengthDisplay":"13 Hours 13 Mins 10 Secs","nightLengthDisplay":"10 Hours 46 Mins 50 Secs","moonriseLocal":"18:47","moonsetLocal":"05:45","rahuKala":{"name":"Rāhu Kāla","start":"10:42","end":"12:21","startHours":10.692297861878306,"endHours":12.344719692568631,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:39","end":"17:18","startHours":15.649563353949283,"endHours":17.30198518463961,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:23","end":"09:02","startHours":7.387454200497654,"endHours":9.03987603118798,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:49","end":"09:16","startHours":8.81955312042927,"endHours":9.26019894194669,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:17","end":"06:38","startHours":6.285839646704104,"endHours":6.63835630391804,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:47","startHours":11.904073871051212,"endHours":12.78536551408605,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:58","end":"04:51","startHours":3.972449083737647,"endHours":4.853740726772488,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:38","end":"05:44","startHours":4.633417816013778,"endHours":5.735032369807328,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:33","end":"15:26","startHours":14.547948800155732,"endHours":15.429240443190572,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:45","end":"19:09","startHours":18.754407015329935,"endHours":19.154407015329934,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:57","end":"19:30","startHours":18.954407015329934,"endHours":19.50521429222671,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:42","end":"20:27","startHours":18.704407015329934,"endHours":20.454407015329934,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:47","startHours":23.90407387105121,"endHours":24.785365514086052,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:44","end":"07:23","startHours":5.735032369807328,"endHours":7.387454200497654,"quality":"neutral"},{"name":"Labha","start":"07:23","end":"09:02","startHours":7.387454200497654,"endHours":9.03987603118798,"quality":"auspicious"},{"name":"Amṛta","start":"09:02","end":"10:42","startHours":9.03987603118798,"endHours":10.692297861878306,"quality":"auspicious"},{"name":"Kāla","start":"10:42","end":"12:21","startHours":10.692297861878306,"endHours":12.344719692568631,"quality":"inauspicious"},{"name":"Śubha","start":"12:21","end":"14:00","startHours":12.344719692568631,"endHours":13.997141523258957,"quality":"auspicious"},{"name":"Roga","start":"14:00","end":"15:39","startHours":13.997141523258957,"endHours":15.649563353949283,"quality":"inauspicious"},{"name":"Udveg","start":"15:39","end":"17:18","startHours":15.649563353949283,"endHours":17.30198518463961,"quality":"inauspicious"},{"name":"Chala","start":"17:18","end":"18:57","startHours":17.30198518463961,"endHours":18.954407015329934,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:57","end":"20:18","startHours":18.954407015329934,"endHours":20.30198518463961,"quality":"inauspicious"},{"name":"Udveg","start":"20:18","end":"21:39","startHours":20.30198518463961,"endHours":21.649563353949283,"quality":"inauspicious"},{"name":"Chala","start":"21:39","end":"23:00","startHours":21.649563353949283,"endHours":22.997141523258957,"quality":"neutral"},{"name":"Labha","start":"23:00","end":"00:21","startHours":22.997141523258957,"endHours":24.34471969256863,"quality":"auspicious"},{"name":"Amṛta","start":"00:21","end":"01:42","startHours":24.34471969256863,"endHours":25.692297861878306,"quality":"auspicious"},{"name":"Kāla","start":"01:42","end":"03:02","startHours":25.692297861878306,"endHours":27.03987603118798,"quality":"inauspicious"},{"name":"Śubha","start":"03:02","end":"04:23","startHours":27.03987603118798,"endHours":28.387454200497654,"quality":"auspicious"},{"name":"Roga","start":"04:23","end":"05:44","startHours":28.387454200497654,"endHours":29.735032369807328,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:44","end":"06:44","startHours":5.735032369807328,"endHours":6.735032369807328,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:44","end":"07:44","startHours":6.735032369807328,"endHours":7.735032369807328,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:44","end":"08:44","startHours":7.735032369807328,"endHours":8.735032369807328,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:44","end":"09:44","startHours":8.735032369807328,"endHours":9.735032369807328,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:44","end":"10:44","startHours":9.735032369807328,"endHours":10.735032369807328,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:44","end":"11:44","startHours":10.735032369807328,"endHours":11.735032369807328,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:44","end":"12:44","startHours":11.735032369807328,"endHours":12.735032369807328,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:44","end":"13:44","startHours":12.735032369807328,"endHours":13.735032369807328,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:44","end":"14:44","startHours":13.735032369807328,"endHours":14.735032369807328,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:44","end":"15:44","startHours":14.735032369807328,"endHours":15.735032369807328,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:44","end":"16:44","startHours":15.735032369807328,"endHours":16.735032369807328,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:44","end":"17:44","startHours":16.735032369807328,"endHours":17.735032369807328,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:44","end":"18:44","startHours":17.735032369807328,"endHours":18.735032369807328,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:44","end":"19:44","startHours":18.735032369807328,"endHours":19.735032369807328,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:44","end":"20:44","startHours":19.735032369807328,"endHours":20.735032369807328,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:44","end":"21:44","startHours":20.735032369807328,"endHours":21.735032369807328,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:44","end":"22:44","startHours":21.735032369807328,"endHours":22.735032369807328,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:44","end":"23:44","startHours":22.735032369807328,"endHours":23.735032369807328,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:44","end":"00:44","startHours":23.735032369807328,"endHours":24.735032369807328,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:44","end":"01:44","startHours":24.735032369807328,"endHours":25.735032369807328,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:44","end":"02:44","startHours":25.735032369807328,"endHours":26.735032369807328,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:44","end":"03:44","startHours":26.735032369807328,"endHours":27.735032369807328,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:44","end":"04:44","startHours":27.735032369807328,"endHours":28.735032369807328,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:44","end":"05:44","startHours":28.735032369807328,"endHours":29.735032369807328,"planetary_lord":"Mars"}],"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","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":13.73788847405051,"eotMinutes":-3.7535815541179196,"ayanamsa":23.1772}},"calendars":{"vikram_samvat":2008,"vikram_samvatsara":"Krodhi","saka_samvat":1873,"saka_samvatsara":"Khara","bengali_samvat":1358,"malayalam_era":1127,"nanakshahi_year":482,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Pratipada · Vikram 2008 Krodhi · Śaka 1873 Khara"},"festivals":[{"id":"pitra-paksha-start","name":"Pitṛ-Pakṣa Start","name_sanskrit":"पितृ पक्ष आरम्भ","tradition":"Pan-Hindu","associated_deity":"Pitṛ-gaṇa","significance":"Begin 16-day śrāddha period for ancestors. Bhādrapada Pūrṇimā next-day.","vrata":true,"detection":{"tithi_number":16,"tithi_paksha":"Kṛṣṇa","lunar_month":"Bhādrapada"},"precedence":2},{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi_ingress":"Siṃha"},"precedence":5}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 August 17, 1951 CE · Ṛṣikeśa · Vidhyamitra","description":"August 17, 1951 CE for Ṛṣikeśa: Kṛṣṇa Pratipada, sūryodaya 05:44, sūryāsta 18:57.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1951-08-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1951-08-17","sa":"https://sa.vidhyamitra.com/city/rishikesh/1951-08-17","hi":"https://hi.vidhyamitra.com/city/rishikesh/1951-08-17","x-default":"https://vidhyamitra.com/city/rishikesh/1951-08-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T17:55:03.938Z","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":"2026-05-31T17:55:03.938Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T17:55:03.938Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}