{"id":"vidhyamitra:city-day:perth:2128-05-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2128-05-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2128-05-13","date_display":"May 13, 2128 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":2128,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498428.770833,"kali_year":5230,"ahargana":1909963.2708,"sun":{"sidereal_longitude":26.6935,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":183.1844,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":156.4909,"elapsed_within_tithi_degrees":0.4909},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":183.1844,"elapsed_within_degrees":9.8511},"yoga":{"number":16,"name":"Siddhi","sum_longitude":209.878},"karana":{"half_tithi_index":26,"name":"Gara"},"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":2128,"month":5,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2498428.770833,"ahargana":1909963.2708,"kali_year":5230,"ayanamsa_lahiri":25.6461,"grahas":{"sun":{"sidereal_longitude":26.990606000000014,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":183.42060600000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false,"latitude":3.0228},"mars":{"sidereal_longitude":51.602405999999974,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":15.648305999999991,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":311.765906,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":26.855105999999978,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":155.89650600000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":140.9545,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":320.9545,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":2128,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498428.770833,"kali_year":5230,"ahargana":1909963.2708,"sun":{"sidereal_longitude":26.6935,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":183.1844,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":156.4909,"elapsed_within_tithi_degrees":0.4909},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":183.1844,"elapsed_within_degrees":9.8511},"yoga":{"number":16,"name":"Siddhi","sum_longitude":209.878},"karana":{"half_tithi_index":26,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.023,"elongation":156.491},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.023,"opposition_distance":23.509}},"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":"06:57","sunsetLocal":"17:29","solarNoonLocal":"12:13","dayLengthHours":10.541570936949384,"dayLengthDisplay":"10 Hours 32 Mins 30 Secs","nightLengthDisplay":"13 Hours 27 Mins 30 Secs","moonriseLocal":"16:07","moonsetLocal":"05:10","rahuKala":{"name":"Rāhu Kāla","start":"13:32","end":"14:51","startHours":13.531105721392734,"endHours":14.848802088511405,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:57","end":"08:16","startHours":6.942623885799368,"endHours":8.260320252918042,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:35","end":"10:54","startHours":9.578016620036713,"endHours":10.895712987155388,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:24","end":"09:45","startHours":9.402323771087557,"endHours":9.753709468985871,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:23","end":"07:40","startHours":7.381856008172259,"endHours":7.66296456649091,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.862023656375747,"endHours":12.564795052172371,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:32","end":"06:14","startHours":5.537081094206117,"endHours":6.239852490002742,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:04","end":"06:57","startHours":6.064159641053586,"endHours":6.942623885799368,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:58","end":"14:40","startHours":13.970337843765623,"endHours":14.67310923956225,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:17","end":"17:41","startHours":17.284194822748752,"endHours":17.68419482274875,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:29","end":"17:55","startHours":17.48419482274875,"endHours":17.92342694512164,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:14","end":"18:59","startHours":17.23419482274875,"endHours":18.98419482274875,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.862023656375747,"endHours":24.56479505217237,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:57","end":"08:16","startHours":6.942623885799368,"endHours":8.260320252918042,"quality":"auspicious"},{"name":"Roga","start":"08:16","end":"09:35","startHours":8.260320252918042,"endHours":9.578016620036713,"quality":"inauspicious"},{"name":"Udveg","start":"09:35","end":"10:54","startHours":9.578016620036713,"endHours":10.895712987155388,"quality":"inauspicious"},{"name":"Chala","start":"10:54","end":"12:13","startHours":10.895712987155388,"endHours":12.21340935427406,"quality":"neutral"},{"name":"Labha","start":"12:13","end":"13:32","startHours":12.21340935427406,"endHours":13.531105721392734,"quality":"auspicious"},{"name":"Amṛta","start":"13:32","end":"14:51","startHours":13.531105721392734,"endHours":14.848802088511405,"quality":"auspicious"},{"name":"Kāla","start":"14:51","end":"16:10","startHours":14.848802088511405,"endHours":16.16649845563008,"quality":"inauspicious"},{"name":"Śubha","start":"16:10","end":"17:29","startHours":16.16649845563008,"endHours":17.48419482274875,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:29","end":"19:10","startHours":17.48419482274875,"endHours":19.166498455630077,"quality":"auspicious"},{"name":"Kāla","start":"19:10","end":"20:51","startHours":19.166498455630077,"endHours":20.848802088511405,"quality":"inauspicious"},{"name":"Śubha","start":"20:51","end":"22:32","startHours":20.848802088511405,"endHours":22.531105721392734,"quality":"auspicious"},{"name":"Roga","start":"22:32","end":"00:13","startHours":22.531105721392734,"endHours":24.21340935427406,"quality":"inauspicious"},{"name":"Udveg","start":"00:13","end":"01:54","startHours":24.21340935427406,"endHours":25.895712987155385,"quality":"inauspicious"},{"name":"Chala","start":"01:54","end":"03:35","startHours":25.895712987155385,"endHours":27.578016620036713,"quality":"neutral"},{"name":"Labha","start":"03:35","end":"05:16","startHours":27.578016620036713,"endHours":29.260320252918042,"quality":"auspicious"},{"name":"Amṛta","start":"05:16","end":"06:57","startHours":29.260320252918042,"endHours":30.942623885799367,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:57","end":"07:57","startHours":6.942623885799368,"endHours":7.942623885799368,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:57","end":"08:57","startHours":7.942623885799368,"endHours":8.942623885799367,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:57","end":"09:57","startHours":8.942623885799367,"endHours":9.942623885799367,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:57","end":"10:57","startHours":9.942623885799367,"endHours":10.942623885799367,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:57","end":"11:57","startHours":10.942623885799367,"endHours":11.942623885799367,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:57","end":"12:57","startHours":11.942623885799367,"endHours":12.942623885799367,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:57","end":"13:57","startHours":12.942623885799367,"endHours":13.942623885799367,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:57","end":"14:57","startHours":13.942623885799367,"endHours":14.942623885799367,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:57","end":"15:57","startHours":14.942623885799367,"endHours":15.942623885799367,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:57","end":"16:57","startHours":15.942623885799367,"endHours":16.942623885799367,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:57","end":"17:57","startHours":16.942623885799367,"endHours":17.942623885799367,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:57","end":"18:57","startHours":17.942623885799367,"endHours":18.942623885799367,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:57","end":"19:57","startHours":18.942623885799367,"endHours":19.942623885799367,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:57","end":"20:57","startHours":19.942623885799367,"endHours":20.942623885799367,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:57","end":"21:57","startHours":20.942623885799367,"endHours":21.942623885799367,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:57","end":"22:57","startHours":21.942623885799367,"endHours":22.942623885799367,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:57","end":"23:57","startHours":22.942623885799367,"endHours":23.942623885799367,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:57","end":"00:57","startHours":23.942623885799367,"endHours":24.942623885799367,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:57","end":"01:57","startHours":24.942623885799367,"endHours":25.942623885799367,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:57","end":"02:57","startHours":25.942623885799367,"endHours":26.942623885799367,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:57","end":"03:57","startHours":26.942623885799367,"endHours":27.942623885799367,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:57","end":"04:57","startHours":27.942623885799367,"endHours":28.942623885799367,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:57","end":"05:57","startHours":28.942623885799367,"endHours":29.942623885799367,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:57","end":"06:57","startHours":29.942623885799367,"endHours":30.942623885799367,"planetary_lord":"Moon"}],"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":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Kāladaṇḍa","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":18.428390821933064,"eotMinutes":3.7534387435564067,"ayanamsa":25.6461}},"calendars":{"vikram_samvat":2185,"vikram_samvatsara":"Plava","saka_samvat":2050,"saka_samvatsara":"Sarvadhāri","bengali_samvat":1535,"malayalam_era":1304,"nanakshahi_year":659,"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 Caturdaśī · Vikram 2185 Plava · Śaka 2050 Sarvadhāri"},"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":"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 13, 2128 CE · Perth, Australia · Vidhyamitra","description":"May 13, 2128 CE for Perth, Australia: Śukla Caturdaśī, sūryodaya 06:57, sūryāsta 17:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2128-05-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2128-05-13","sa":"https://sa.vidhyamitra.com/city/perth/2128-05-13","hi":"https://hi.vidhyamitra.com/city/perth/2128-05-13","x-default":"https://vidhyamitra.com/city/perth/2128-05-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T13:20:50.919Z","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":"2026-05-31T13:20:50.919Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T13:20:50.919Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}