{"id":"vidhyamitra:city-day:perth:1950-05-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1950-05-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1950-05-01","date_display":"May 1, 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":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2433402.770833,"kali_year":5052,"ahargana":1844937.2708,"sun":{"sidereal_longitude":17.1216,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":181.0377,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":163.9161,"elapsed_within_tithi_degrees":7.9161},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":181.0377,"elapsed_within_degrees":7.7044},"yoga":{"number":15,"name":"Vajra","sum_longitude":198.1594},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2433402.770833,"ahargana":1844937.2708,"kali_year":5052,"ayanamsa_lahiri":23.1591,"grahas":{"sun":{"sidereal_longitude":16.94577700000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":180.25257699999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false,"latitude":-1.1403},"mars":{"sidereal_longitude":149.49267699999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":true},"mercury":{"sidereal_longitude":34.96197699999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":310.509177,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":332.403277,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":139.910077,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":346.3449,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":166.3449,"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":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2433402.770833,"kali_year":5052,"ahargana":1844937.2708,"sun":{"sidereal_longitude":17.1216,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":181.0377,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":163.9161,"elapsed_within_tithi_degrees":7.9161},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":181.0377,"elapsed_within_degrees":7.7044},"yoga":{"number":15,"name":"Vajra","sum_longitude":198.1594},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.14,"elongation":163.916},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.14,"opposition_distance":16.084}},"eclipse_window_40days":[{"offset_days":-14,"type":"solar","occurs":true,"moon_latitude":1.098,"elongation":2.321}]},"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":"06:48","sunsetLocal":"17:40","solarNoonLocal":"12:14","dayLengthHours":10.868393671466158,"dayLengthDisplay":"10 Hours 52 Mins 06 Secs","nightLengthDisplay":"13 Hours 07 Mins 54 Secs","moonriseLocal":"16:41","moonsetLocal":"05:33","rahuKala":{"name":"Rāhu Kāla","start":"08:09","end":"09:31","startHours":8.151685584384078,"endHours":9.510234793317348,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:52","end":"12:14","startHours":10.868784002250617,"endHours":12.227333211183886,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:35","end":"14:57","startHours":13.585882420117157,"endHours":14.944431629050428,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:20","end":"09:41","startHours":9.329094898792912,"endHours":9.691374687841783,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:15","end":"07:32","startHours":7.245986111761898,"endHours":7.535809943000995,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:35","startHours":11.865053422135015,"endHours":12.589613000232758,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:21","end":"06:04","startHours":5.344017219255321,"endHours":6.068576797353064,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:53","end":"06:48","startHours":5.887436902828628,"endHours":6.793136375450808,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:02","end":"14:46","startHours":14.038732156428246,"endHours":14.763291734525989,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:28","end":"17:52","startHours":17.461530046916966,"endHours":17.861530046916965,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:40","end":"18:07","startHours":17.661530046916965,"endHours":18.114379783228056,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:25","end":"19:10","startHours":17.411530046916965,"endHours":19.161530046916965,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:35","startHours":23.865053422135013,"endHours":24.58961300023276,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:48","end":"08:09","startHours":6.793136375450808,"endHours":8.151685584384078,"quality":"auspicious"},{"name":"Kāla","start":"08:09","end":"09:31","startHours":8.151685584384078,"endHours":9.510234793317348,"quality":"inauspicious"},{"name":"Śubha","start":"09:31","end":"10:52","startHours":9.510234793317348,"endHours":10.868784002250617,"quality":"auspicious"},{"name":"Roga","start":"10:52","end":"12:14","startHours":10.868784002250617,"endHours":12.227333211183886,"quality":"inauspicious"},{"name":"Udveg","start":"12:14","end":"13:35","startHours":12.227333211183886,"endHours":13.585882420117157,"quality":"inauspicious"},{"name":"Chala","start":"13:35","end":"14:57","startHours":13.585882420117157,"endHours":14.944431629050428,"quality":"neutral"},{"name":"Labha","start":"14:57","end":"16:18","startHours":14.944431629050428,"endHours":16.302980837983696,"quality":"auspicious"},{"name":"Amṛta","start":"16:18","end":"17:40","startHours":16.302980837983696,"endHours":17.661530046916965,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:40","end":"19:18","startHours":17.661530046916965,"endHours":19.302980837983696,"quality":"neutral"},{"name":"Labha","start":"19:18","end":"20:57","startHours":19.302980837983696,"endHours":20.944431629050428,"quality":"auspicious"},{"name":"Amṛta","start":"20:57","end":"22:35","startHours":20.944431629050428,"endHours":22.585882420117155,"quality":"auspicious"},{"name":"Kāla","start":"22:35","end":"00:14","startHours":22.585882420117155,"endHours":24.227333211183886,"quality":"inauspicious"},{"name":"Śubha","start":"00:14","end":"01:52","startHours":24.227333211183886,"endHours":25.868784002250617,"quality":"auspicious"},{"name":"Roga","start":"01:52","end":"03:31","startHours":25.868784002250617,"endHours":27.510234793317345,"quality":"inauspicious"},{"name":"Udveg","start":"03:31","end":"05:09","startHours":27.510234793317345,"endHours":29.151685584384076,"quality":"inauspicious"},{"name":"Chala","start":"05:09","end":"06:48","startHours":29.151685584384076,"endHours":30.793136375450807,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:48","end":"07:48","startHours":6.793136375450808,"endHours":7.793136375450808,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:48","end":"08:48","startHours":7.793136375450808,"endHours":8.793136375450807,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:48","end":"09:48","startHours":8.793136375450807,"endHours":9.793136375450807,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:48","end":"10:48","startHours":9.793136375450807,"endHours":10.793136375450807,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:48","end":"11:48","startHours":10.793136375450807,"endHours":11.793136375450807,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:48","end":"12:48","startHours":11.793136375450807,"endHours":12.793136375450807,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:48","end":"13:48","startHours":12.793136375450807,"endHours":13.793136375450807,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:48","end":"14:48","startHours":13.793136375450807,"endHours":14.793136375450807,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:48","end":"15:48","startHours":14.793136375450807,"endHours":15.793136375450807,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:48","end":"16:48","startHours":15.793136375450807,"endHours":16.793136375450807,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:48","end":"17:48","startHours":16.793136375450807,"endHours":17.793136375450807,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:48","end":"18:48","startHours":17.793136375450807,"endHours":18.793136375450807,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:48","end":"19:48","startHours":18.793136375450807,"endHours":19.793136375450807,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:48","end":"20:48","startHours":19.793136375450807,"endHours":20.793136375450807,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:48","end":"21:48","startHours":20.793136375450807,"endHours":21.793136375450807,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:48","end":"22:48","startHours":21.793136375450807,"endHours":22.793136375450807,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:48","end":"23:48","startHours":22.793136375450807,"endHours":23.793136375450807,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:48","end":"00:48","startHours":23.793136375450807,"endHours":24.793136375450807,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:48","end":"01:48","startHours":24.793136375450807,"endHours":25.793136375450807,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:48","end":"02:48","startHours":25.793136375450807,"endHours":26.793136375450807,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:48","end":"03:48","startHours":26.793136375450807,"endHours":27.793136375450807,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:48","end":"04:48","startHours":27.793136375450807,"endHours":28.793136375450807,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:48","end":"05:48","startHours":28.793136375450807,"endHours":29.793136375450807,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:48","end":"06:48","startHours":29.793136375450807,"endHours":30.793136375450807,"planetary_lord":"Venus"}],"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":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"North-East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":14.845578016876333,"eotMinutes":2.918007328966811,"ayanamsa":23.1591}},"calendars":{"vikram_samvat":2007,"vikram_samvatsara":"Śobhana","saka_samvat":1872,"saka_samvatsara":"Vikṛti","bengali_samvat":1357,"malayalam_era":1126,"nanakshahi_year":481,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Caturdaśī · Vikram 2007 Śobhana · Śaka 1872 Vikṛti"},"festivals":[{"id":"narasimha-jayanti","name":"Narasiṁha Jayantī","name_sanskrit":"नरसिंह जयन्ती","tradition":"Vaishnava","associated_deity":"Narasiṁha (avatar of Krishna)","deity_avatara_index":14,"significance":"Bhagavān Narasiṁha manifested to protect the bhakta Prahlāda. Krishna's fierce protective form.","vrata":true,"primary_observance":"Sandhyā (twilight) abhiṣekam; recitation of Narasiṁha-Stotra","detection":{"tithi_number":14,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":1,"related_chart":"narasimha","sources":["Bhāgavata Purāṇa 7.8"]},{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2},{"id":"chhinnamasta-jayanti","name":"Chhinnamastā Jayantī","name_sanskrit":"छिन्नमस्ता जयन्ती","tradition":"Shakta","associated_deity":"Devī Chhinnamastā (6th of 10 Mahāvidyās)","significance":"The 6th of the Daśa Mahāvidyās. Devī's self-decapitation form representing transcendence of ego.","vrata":false,"detection":{"tithi_number":14,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":5}],"todays_walk":{"walk":{"id":"narasimha-jayanti-walk","name":"Narasiṁha Jayantī Walk","name_sanskrit":"नरसिंह जयन्ती यात्रा","type":"festival","description":"Bhāgavata 7.8 (Prahlāda-Narasiṁha) + protective verses.","step_count":9,"url":"/walk/narasimha-jayanti-walk"},"reason":"Today is Narasiṁha Jayantī — its dedicated 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 1, 1950 CE · Perth, Australia · Vidhyamitra","description":"May 1, 1950 CE for Perth, Australia: Śukla Caturdaśī, sūryodaya 06:48, sūryāsta 17:40.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1950-05-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1950-05-01","sa":"https://sa.vidhyamitra.com/city/perth/1950-05-01","hi":"https://hi.vidhyamitra.com/city/perth/1950-05-01","x-default":"https://vidhyamitra.com/city/perth/1950-05-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T08:43:43.770Z","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":"2026-05-21T08:43:43.770Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T08:43:43.770Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}