{"id":"vidhyamitra:city-day:perth:1900-05-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1900-05-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1900-05-12","date_display":"May 12, 1900 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":1900,"month":5,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2415151.770833,"kali_year":5002,"ahargana":1826686.2708,"sun":{"sidereal_longitude":28.6096,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":177.5192,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.9096,"elapsed_within_tithi_degrees":4.9096},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":177.5192,"elapsed_within_degrees":4.1859},"yoga":{"number":16,"name":"Siddhi","sum_longitude":206.1289},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1900,"month":5,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2415151.770833,"ahargana":1826686.2708,"kali_year":5002,"ayanamsa_lahiri":22.4611,"grahas":{"sun":{"sidereal_longitude":28.381999000000008,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":178.53059900000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false,"latitude":-3.7229},"mars":{"sidereal_longitude":4.927699000000018,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":10.504998999999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":226.82059900000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":74.62359900000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":253.21219900000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":233.3707,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":53.3707,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1},"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":1900,"month":5,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2415151.770833,"kali_year":5002,"ahargana":1826686.2708,"sun":{"sidereal_longitude":28.6096,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":177.5192,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.9096,"elapsed_within_tithi_degrees":4.9096},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":177.5192,"elapsed_within_degrees":4.1859},"yoga":{"number":16,"name":"Siddhi","sum_longitude":206.1289},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.723,"elongation":148.91},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.723,"opposition_distance":31.09}},"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":"06:55","sunsetLocal":"17:30","solarNoonLocal":"12:13","dayLengthHours":10.584809758601857,"dayLengthDisplay":"10 Hours 35 Mins 05 Secs","nightLengthDisplay":"13 Hours 24 Mins 55 Secs","moonriseLocal":"15:50","moonsetLocal":"04:37","rahuKala":{"name":"Rāhu Kāla","start":"09:34","end":"10:53","startHours":9.567471232355059,"endHours":10.89057245218029,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:32","end":"14:52","startHours":13.536774891830756,"endHours":14.859876111655987,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:55","end":"08:15","startHours":6.921268792704595,"endHours":8.244370012529828,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:23","end":"09:45","startHours":9.391057736378361,"endHours":9.743884728331757,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:22","end":"07:39","startHours":7.362302532646339,"endHours":7.644564126209056,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.860846680052129,"endHours":12.566500663958918,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:31","end":"06:13","startHours":5.509960824891014,"endHours":6.215614808797804,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:02","end":"06:55","startHours":6.039201312821107,"endHours":6.921268792704595,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:59","end":"14:41","startHours":13.9778086317725,"endHours":14.683462615679291,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:18","end":"17:42","startHours":17.306078551306452,"endHours":17.70607855130645,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:30","end":"17:57","startHours":17.50607855130645,"endHours":17.947112291248196,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:15","end":"19:00","startHours":17.25607855130645,"endHours":19.00607855130645,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.860846680052127,"endHours":24.56650066395892,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:55","end":"08:15","startHours":6.921268792704595,"endHours":8.244370012529828,"quality":"inauspicious"},{"name":"Śubha","start":"08:15","end":"09:34","startHours":8.244370012529828,"endHours":9.567471232355059,"quality":"auspicious"},{"name":"Roga","start":"09:34","end":"10:53","startHours":9.567471232355059,"endHours":10.89057245218029,"quality":"inauspicious"},{"name":"Udveg","start":"10:53","end":"12:13","startHours":10.89057245218029,"endHours":12.213673672005523,"quality":"inauspicious"},{"name":"Chala","start":"12:13","end":"13:32","startHours":12.213673672005523,"endHours":13.536774891830756,"quality":"neutral"},{"name":"Labha","start":"13:32","end":"14:52","startHours":13.536774891830756,"endHours":14.859876111655987,"quality":"auspicious"},{"name":"Amṛta","start":"14:52","end":"16:11","startHours":14.859876111655987,"endHours":16.18297733148122,"quality":"auspicious"},{"name":"Kāla","start":"16:11","end":"17:30","startHours":16.18297733148122,"endHours":17.50607855130645,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:30","end":"19:11","startHours":17.50607855130645,"endHours":19.18297733148122,"quality":"auspicious"},{"name":"Amṛta","start":"19:11","end":"20:52","startHours":19.18297733148122,"endHours":20.859876111655986,"quality":"auspicious"},{"name":"Kāla","start":"20:52","end":"22:32","startHours":20.859876111655986,"endHours":22.536774891830756,"quality":"inauspicious"},{"name":"Śubha","start":"22:32","end":"00:13","startHours":22.536774891830756,"endHours":24.213673672005523,"quality":"auspicious"},{"name":"Roga","start":"00:13","end":"01:53","startHours":24.213673672005523,"endHours":25.89057245218029,"quality":"inauspicious"},{"name":"Udveg","start":"01:53","end":"03:34","startHours":25.89057245218029,"endHours":27.56747123235506,"quality":"inauspicious"},{"name":"Chala","start":"03:34","end":"05:15","startHours":27.56747123235506,"endHours":29.244370012529828,"quality":"neutral"},{"name":"Labha","start":"05:15","end":"06:55","startHours":29.244370012529828,"endHours":30.921268792704595,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:55","end":"07:55","startHours":6.921268792704595,"endHours":7.921268792704595,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:55","end":"08:55","startHours":7.921268792704595,"endHours":8.921268792704595,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:55","end":"09:55","startHours":8.921268792704595,"endHours":9.921268792704595,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:55","end":"10:55","startHours":9.921268792704595,"endHours":10.921268792704595,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:55","end":"11:55","startHours":10.921268792704595,"endHours":11.921268792704595,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:55","end":"12:55","startHours":11.921268792704595,"endHours":12.921268792704595,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:55","end":"13:55","startHours":12.921268792704595,"endHours":13.921268792704595,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:55","end":"14:55","startHours":13.921268792704595,"endHours":14.921268792704595,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:55","end":"15:55","startHours":14.921268792704595,"endHours":15.921268792704595,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:55","end":"16:55","startHours":15.921268792704595,"endHours":16.921268792704595,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:55","end":"17:55","startHours":16.921268792704595,"endHours":17.921268792704595,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:55","end":"18:55","startHours":17.921268792704595,"endHours":18.921268792704595,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:55","end":"19:55","startHours":18.921268792704595,"endHours":19.921268792704595,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:55","end":"20:55","startHours":19.921268792704595,"endHours":20.921268792704595,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:55","end":"21:55","startHours":20.921268792704595,"endHours":21.921268792704595,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:55","end":"22:55","startHours":21.921268792704595,"endHours":22.921268792704595,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:55","end":"23:55","startHours":22.921268792704595,"endHours":23.921268792704595,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:55","end":"00:55","startHours":23.921268792704595,"endHours":24.921268792704595,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:55","end":"01:55","startHours":24.921268792704595,"endHours":25.921268792704595,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:55","end":"02:55","startHours":25.921268792704595,"endHours":26.921268792704595,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:55","end":"03:55","startHours":26.921268792704595,"endHours":27.921268792704595,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:55","end":"04:55","startHours":27.921268792704595,"endHours":28.921268792704595,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:55","end":"05:55","startHours":28.921268792704595,"endHours":29.921268792704595,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:55","end":"06:55","startHours":29.921268792704595,"endHours":30.921268792704595,"planetary_lord":"Mercury"}],"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","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":17.963410715059133,"eotMinutes":3.7375796796685163,"ayanamsa":22.4611}},"calendars":{"vikram_samvat":1957,"vikram_samvatsara":"Pramādī","saka_samvat":1822,"saka_samvatsara":"Śārvarī","bengali_samvat":1307,"malayalam_era":1076,"nanakshahi_year":431,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Trayodaśī · Vikram 1957 Pramādī · Śaka 1822 Śārvarī"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 12, 1900 CE · Perth, Australia · Vidhyamitra","description":"May 12, 1900 CE for Perth, Australia: Śukla Trayodaśī, sūryodaya 06:55, sūryāsta 17:30.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1900-05-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1900-05-12","sa":"https://sa.vidhyamitra.com/city/perth/1900-05-12","hi":"https://hi.vidhyamitra.com/city/perth/1900-05-12","x-default":"https://vidhyamitra.com/city/perth/1900-05-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T23:36:03.962Z","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":"2026-05-31T23:36:03.962Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T23:36:03.962Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}