{"id":"vidhyamitra:city-day:perth:1952-05-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1952-05-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1952-05-20","date_display":"May 20, 1952 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":1952,"month":5,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2434152.770833,"kali_year":5054,"ahargana":1845687.2708,"sun":{"sidereal_longitude":35.8337,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":350.0811,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":314.2474,"elapsed_within_tithi_degrees":2.2474},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":350.0811,"elapsed_within_degrees":3.4144},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.9148},"karana":{"half_tithi_index":52,"name":"Kaulava"},"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":1952,"month":5,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2434152.770833,"ahargana":1845687.2708,"kali_year":5054,"ayanamsa_lahiri":23.1878,"grahas":{"sun":{"sidereal_longitude":35.77352100000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":349.752121,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false,"latitude":3.0945},"mars":{"sidereal_longitude":191.568221,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":15.693421,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":12.358221000000015,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":26.749220999999977,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":165.72432099999992,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":306.6063,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":126.6063,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":1952,"month":5,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2434152.770833,"kali_year":5054,"ahargana":1845687.2708,"sun":{"sidereal_longitude":35.8337,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":350.0811,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":314.2474,"elapsed_within_tithi_degrees":2.2474},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":350.0811,"elapsed_within_degrees":3.4144},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.9148},"karana":{"half_tithi_index":52,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.094,"elongation":45.753},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.094,"opposition_distance":134.247}},"eclipse_window_40days":[]},"city":{"slug":"perth","name":"Perth, Australia","lat":-31.9505,"lon":115.8605,"tz_offset_hours":8,"country":"AU","tier":"diaspora"},"tier2":{"city":{"slug":"perth","name":"Perth, Australia","lat":-31.9505,"lon":115.8605,"tz_offset_hours":8,"country":"AU","tier":"diaspora"},"sunriseLocal":"07:01","sunsetLocal":"17:25","solarNoonLocal":"12:13","dayLengthHours":10.40052528831378,"dayLengthDisplay":"10 Hours 24 Mins 02 Secs","nightLengthDisplay":"13 Hours 35 Mins 58 Secs","moonriseLocal":"03:19","moonsetLocal":"14:59","rahuKala":{"name":"Rāhu Kāla","start":"14:49","end":"16:07","startHours":14.816126105142024,"endHours":16.116191766181245,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:37","end":"10:55","startHours":9.615863460985134,"endHours":10.915929122024355,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:13","end":"13:31","startHours":12.215994783063579,"endHours":13.516060444102802,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:27","end":"09:47","startHours":9.44252137284657,"endHours":9.789205549123697,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:27","end":"07:44","startHours":7.449087359253096,"endHours":7.726434700274797,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.869310606786453,"endHours":12.562678959340705,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:38","end":"06:19","startHours":5.628995433798185,"endHours":6.322363786352437,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:09","end":"07:01","startHours":6.149021698213874,"endHours":7.015732138906689,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:39","startHours":13.949415664449209,"endHours":14.64278401700346,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:13","end":"17:37","startHours":17.21625742722047,"endHours":17.616257427220468,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:25","end":"17:51","startHours":17.41625742722047,"endHours":17.849612647566875,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:10","end":"18:55","startHours":17.16625742722047,"endHours":18.91625742722047,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.869310606786453,"endHours":24.562678959340705,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:01","end":"08:19","startHours":7.015732138906689,"endHours":8.315797799945912,"quality":"inauspicious"},{"name":"Udveg","start":"08:19","end":"09:37","startHours":8.315797799945912,"endHours":9.615863460985134,"quality":"inauspicious"},{"name":"Chala","start":"09:37","end":"10:55","startHours":9.615863460985134,"endHours":10.915929122024355,"quality":"neutral"},{"name":"Labha","start":"10:55","end":"12:13","startHours":10.915929122024355,"endHours":12.215994783063579,"quality":"auspicious"},{"name":"Amṛta","start":"12:13","end":"13:31","startHours":12.215994783063579,"endHours":13.516060444102802,"quality":"auspicious"},{"name":"Kāla","start":"13:31","end":"14:49","startHours":13.516060444102802,"endHours":14.816126105142024,"quality":"inauspicious"},{"name":"Śubha","start":"14:49","end":"16:07","startHours":14.816126105142024,"endHours":16.116191766181245,"quality":"auspicious"},{"name":"Roga","start":"16:07","end":"17:25","startHours":16.116191766181245,"endHours":17.41625742722047,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:25","end":"19:07","startHours":17.41625742722047,"endHours":19.116191766181245,"quality":"inauspicious"},{"name":"Śubha","start":"19:07","end":"20:49","startHours":19.116191766181245,"endHours":20.816126105142025,"quality":"auspicious"},{"name":"Roga","start":"20:49","end":"22:31","startHours":20.816126105142025,"endHours":22.516060444102802,"quality":"inauspicious"},{"name":"Udveg","start":"22:31","end":"00:13","startHours":22.516060444102802,"endHours":24.21599478306358,"quality":"inauspicious"},{"name":"Chala","start":"00:13","end":"01:55","startHours":24.21599478306358,"endHours":25.915929122024355,"quality":"neutral"},{"name":"Labha","start":"01:55","end":"03:37","startHours":25.915929122024355,"endHours":27.615863460985132,"quality":"auspicious"},{"name":"Amṛta","start":"03:37","end":"05:19","startHours":27.615863460985132,"endHours":29.315797799945912,"quality":"auspicious"},{"name":"Kāla","start":"05:19","end":"07:01","startHours":29.315797799945912,"endHours":31.01573213890669,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:01","end":"08:01","startHours":7.015732138906689,"endHours":8.015732138906689,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:01","end":"09:01","startHours":8.015732138906689,"endHours":9.015732138906689,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:01","end":"10:01","startHours":9.015732138906689,"endHours":10.015732138906689,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:01","end":"11:01","startHours":10.015732138906689,"endHours":11.015732138906689,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:01","end":"12:01","startHours":11.015732138906689,"endHours":12.015732138906689,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:01","end":"13:01","startHours":12.015732138906689,"endHours":13.015732138906689,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:01","end":"14:01","startHours":13.015732138906689,"endHours":14.015732138906689,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:01","end":"15:01","startHours":14.015732138906689,"endHours":15.015732138906689,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:01","end":"16:01","startHours":15.015732138906689,"endHours":16.01573213890669,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:01","end":"17:01","startHours":16.01573213890669,"endHours":17.01573213890669,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:01","end":"18:01","startHours":17.01573213890669,"endHours":18.01573213890669,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:01","end":"19:01","startHours":18.01573213890669,"endHours":19.01573213890669,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:01","end":"20:01","startHours":19.01573213890669,"endHours":20.01573213890669,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:01","end":"21:01","startHours":20.01573213890669,"endHours":21.01573213890669,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:01","end":"22:01","startHours":21.01573213890669,"endHours":22.01573213890669,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:01","end":"23:01","startHours":22.01573213890669,"endHours":23.01573213890669,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:01","end":"00:01","startHours":23.01573213890669,"endHours":24.01573213890669,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:01","end":"01:01","startHours":24.01573213890669,"endHours":25.01573213890669,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:01","end":"02:01","startHours":25.01573213890669,"endHours":26.01573213890669,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:01","end":"03:01","startHours":26.01573213890669,"endHours":27.01573213890669,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:01","end":"04:01","startHours":27.01573213890669,"endHours":28.01573213890669,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:01","end":"05:01","startHours":28.01573213890669,"endHours":29.01573213890669,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:01","end":"06:01","startHours":29.01573213890669,"endHours":30.01573213890669,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:01","end":"07:01","startHours":30.01573213890669,"endHours":31.01573213890669,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":19.924701317685226,"eotMinutes":3.5983130161851964,"ayanamsa":23.1878}},"calendars":{"vikram_samvat":2009,"vikram_samvatsara":"Viśvāvasu","saka_samvat":1874,"saka_samvatsara":"Nandana","bengali_samvat":1359,"malayalam_era":1128,"nanakshahi_year":483,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Vaiśākha","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 Kṛṣṇa Dvādaśī · Vikram 2009 Viśvāvasu · Śaka 1874 Nandana"},"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":[]},"validity":{"eternal":false,"location_specific":"perth"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 20, 1952 CE · Perth, Australia · Vidhyamitra","description":"May 20, 1952 CE for Perth, Australia: Kṛṣṇa Dvādaśī, sūryodaya 07:01, sūryāsta 17:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1952-05-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1952-05-20","sa":"https://sa.vidhyamitra.com/city/perth/1952-05-20","hi":"https://hi.vidhyamitra.com/city/perth/1952-05-20","x-default":"https://vidhyamitra.com/city/perth/1952-05-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T08:46:22.262Z","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":"2026-06-03T08:46:22.262Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T08:46:22.262Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}