{"id":"vidhyamitra:city-day:rishikesh:1938-08-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1938-08-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1938-08-18","date_display":"August 18, 1938 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":1938,"month":8,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2429128.770833,"kali_year":5040,"ahargana":1840663.2708,"sun":{"sidereal_longitude":120.9608,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":23.6222,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":262.6614,"elapsed_within_tithi_degrees":10.6614},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4,"moon_longitude":23.6222,"elapsed_within_degrees":10.2889},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":144.583},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1938,"month":8,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2429128.770833,"ahargana":1840663.2708,"kali_year":5040,"ayanamsa_lahiri":22.9957,"grahas":{"sun":{"sidereal_longitude":121.44117499999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":21.18867499999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false,"latitude":0.7172},"mars":{"sidereal_longitude":114.61807499999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":139.75947499999995,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":305.366675,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":167.00227500000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":355.233775,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":212.802,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":32.802,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":1938,"month":8,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2429128.770833,"kali_year":5040,"ahargana":1840663.2708,"sun":{"sidereal_longitude":120.9608,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":23.6222,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":262.6614,"elapsed_within_tithi_degrees":10.6614},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4,"moon_longitude":23.6222,"elapsed_within_degrees":10.2889},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":144.583},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.717,"elongation":97.339},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.717,"opposition_distance":82.661}},"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":"05:45","sunsetLocal":"18:56","solarNoonLocal":"12:20","dayLengthHours":13.189123203287663,"dayLengthDisplay":"13 Hours 11 Mins 21 Secs","nightLengthDisplay":"10 Hours 48 Mins 39 Secs","moonriseLocal":"22:58","moonsetLocal":"12:21","rahuKala":{"name":"Rāhu Kāla","start":"13:59","end":"15:38","startHours":13.989601362426132,"endHours":15.63824176283709,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:45","end":"07:24","startHours":5.746399360371344,"endHours":7.395039760782302,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:03","end":"10:42","startHours":9.04368016119326,"endHours":10.692320561604216,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:49","end":"09:16","startHours":8.823861441138465,"endHours":9.263498881248054,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:18","end":"06:39","startHours":6.29594616050833,"endHours":6.647656112596001,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:47","startHours":11.901323521905585,"endHours":12.780598402124763,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:59","end":"04:52","startHours":3.9878495999329884,"endHours":4.8671244801521665,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:39","end":"05:45","startHours":4.647305760097372,"endHours":5.746399360371344,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:32","end":"15:25","startHours":14.53914816256312,"endHours":15.418423042782297,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:44","end":"19:08","startHours":18.735522563659007,"endHours":19.135522563659006,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:56","end":"19:29","startHours":18.935522563659006,"endHours":19.485069363795994,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:41","end":"20:26","startHours":18.685522563659006,"endHours":20.435522563659006,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:47","startHours":23.901323521905585,"endHours":24.780598402124763,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:45","end":"07:24","startHours":5.746399360371344,"endHours":7.395039760782302,"quality":"auspicious"},{"name":"Roga","start":"07:24","end":"09:03","startHours":7.395039760782302,"endHours":9.04368016119326,"quality":"inauspicious"},{"name":"Udveg","start":"09:03","end":"10:42","startHours":9.04368016119326,"endHours":10.692320561604216,"quality":"inauspicious"},{"name":"Chala","start":"10:42","end":"12:20","startHours":10.692320561604216,"endHours":12.340960962015174,"quality":"neutral"},{"name":"Labha","start":"12:20","end":"13:59","startHours":12.340960962015174,"endHours":13.989601362426132,"quality":"auspicious"},{"name":"Amṛta","start":"13:59","end":"15:38","startHours":13.989601362426132,"endHours":15.63824176283709,"quality":"auspicious"},{"name":"Kāla","start":"15:38","end":"17:17","startHours":15.63824176283709,"endHours":17.28688216324805,"quality":"inauspicious"},{"name":"Śubha","start":"17:17","end":"18:56","startHours":17.28688216324805,"endHours":18.935522563659006,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:56","end":"20:17","startHours":18.935522563659006,"endHours":20.28688216324805,"quality":"auspicious"},{"name":"Kāla","start":"20:17","end":"21:38","startHours":20.28688216324805,"endHours":21.63824176283709,"quality":"inauspicious"},{"name":"Śubha","start":"21:38","end":"22:59","startHours":21.63824176283709,"endHours":22.989601362426132,"quality":"auspicious"},{"name":"Roga","start":"22:59","end":"00:20","startHours":22.989601362426132,"endHours":24.340960962015174,"quality":"inauspicious"},{"name":"Udveg","start":"00:20","end":"01:42","startHours":24.340960962015174,"endHours":25.692320561604216,"quality":"inauspicious"},{"name":"Chala","start":"01:42","end":"03:03","startHours":25.692320561604216,"endHours":27.043680161193258,"quality":"neutral"},{"name":"Labha","start":"03:03","end":"04:24","startHours":27.043680161193258,"endHours":28.395039760782304,"quality":"auspicious"},{"name":"Amṛta","start":"04:24","end":"05:45","startHours":28.395039760782304,"endHours":29.746399360371342,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:45","end":"06:45","startHours":5.746399360371344,"endHours":6.746399360371344,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:45","end":"07:45","startHours":6.746399360371344,"endHours":7.746399360371344,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:45","end":"08:45","startHours":7.746399360371344,"endHours":8.746399360371344,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:45","end":"09:45","startHours":8.746399360371344,"endHours":9.746399360371344,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:45","end":"10:45","startHours":9.746399360371344,"endHours":10.746399360371344,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:45","end":"11:45","startHours":10.746399360371344,"endHours":11.746399360371344,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:45","end":"12:45","startHours":11.746399360371344,"endHours":12.746399360371344,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:45","end":"13:45","startHours":12.746399360371344,"endHours":13.746399360371344,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:45","end":"14:45","startHours":13.746399360371344,"endHours":14.746399360371344,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:45","end":"15:45","startHours":14.746399360371344,"endHours":15.746399360371344,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:45","end":"16:45","startHours":15.746399360371344,"endHours":16.746399360371342,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:45","end":"17:45","startHours":16.746399360371342,"endHours":17.746399360371342,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:45","end":"18:45","startHours":17.746399360371342,"endHours":18.746399360371342,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:45","end":"19:45","startHours":18.746399360371342,"endHours":19.746399360371342,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:45","end":"20:45","startHours":19.746399360371342,"endHours":20.746399360371342,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:45","end":"21:45","startHours":20.746399360371342,"endHours":21.746399360371342,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:45","end":"22:45","startHours":21.746399360371342,"endHours":22.746399360371342,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:45","end":"23:45","startHours":22.746399360371342,"endHours":23.746399360371342,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:45","end":"00:45","startHours":23.746399360371342,"endHours":24.746399360371342,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:45","end":"01:45","startHours":24.746399360371342,"endHours":25.746399360371342,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:45","end":"02:45","startHours":25.746399360371342,"endHours":26.746399360371342,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:45","end":"03:45","startHours":26.746399360371342,"endHours":27.746399360371342,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:45","end":"04:45","startHours":27.746399360371342,"endHours":28.746399360371342,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:45","end":"05:45","startHours":28.746399360371342,"endHours":29.746399360371342,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"drikRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":13.374858122885408,"eotMinutes":-3.5280577209103767,"ayanamsa":22.9957}},"calendars":{"vikram_samvat":1995,"vikram_samvatsara":"Khara","saka_samvat":1860,"saka_samvatsara":"Bahudhānya","bengali_samvat":1345,"malayalam_era":1114,"nanakshahi_year":469,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Saptamī · Vikram 1995 Khara · Śaka 1860 Bahudhānya"},"festivals":[{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 18, 1938 CE · Ṛṣikeśa · Vidhyamitra","description":"August 18, 1938 CE for Ṛṣikeśa: Kṛṣṇa Saptamī, sūryodaya 05:45, sūryāsta 18:56.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1938-08-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1938-08-18","sa":"https://sa.vidhyamitra.com/city/rishikesh/1938-08-18","hi":"https://hi.vidhyamitra.com/city/rishikesh/1938-08-18","x-default":"https://vidhyamitra.com/city/rishikesh/1938-08-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-24T21:36:03.591Z","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":"2026-05-24T21:36:03.591Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-24T21:36:03.591Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}