{"id":"vidhyamitra:city-day:perth:1902-05-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1902-05-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1902-05-21","date_display":"May 21, 1902 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":1902,"month":5,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2415890.770833,"kali_year":5004,"ahargana":1827425.2708,"sun":{"sidereal_longitude":36.7299,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":201.5152,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":164.7853,"elapsed_within_tithi_degrees":8.7853},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":201.5152,"elapsed_within_degrees":1.5152},"yoga":{"number":18,"name":"Varīyān","sum_longitude":238.2452},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1902,"month":5,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2415890.770833,"ahargana":1827425.2708,"kali_year":5004,"ayanamsa_lahiri":22.4894,"grahas":{"sun":{"sidereal_longitude":36.55796399999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":201.25386400000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false,"latitude":0.5712},"mars":{"sidereal_longitude":26.350663999999995,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":59.09276399999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":295.754864,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":353.487064,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":276.495764,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":194.215,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":14.215,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":1902,"month":5,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2415890.770833,"kali_year":5004,"ahargana":1827425.2708,"sun":{"sidereal_longitude":36.7299,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":201.5152,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":164.7853,"elapsed_within_tithi_degrees":8.7853},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":201.5152,"elapsed_within_degrees":1.5152},"yoga":{"number":18,"name":"Varīyān","sum_longitude":238.2452},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.571,"elongation":164.785},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.571,"opposition_distance":15.215}},"eclipse_window_40days":[{"offset_days":-13,"type":"solar","occurs":true,"moon_latitude":-0.767,"elongation":0.452}]},"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":10.398738822189053,"dayLengthDisplay":"10 Hours 23 Mins 55 Secs","nightLengthDisplay":"13 Hours 36 Mins 05 Secs","moonriseLocal":"16:28","moonsetLocal":"05:56","rahuKala":{"name":"Rāhu Kāla","start":"12:13","end":"13:31","startHours":12.21697637029203,"endHours":13.516818723065663,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:19","end":"09:37","startHours":8.317449311971137,"endHours":9.61729166474477,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:55","end":"12:13","startHours":10.9171340175184,"endHours":12.21697637029203,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:27","end":"09:47","startHours":9.443979351041618,"endHours":9.790603978447919,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:27","end":"07:44","startHours":7.450887743455382,"endHours":7.728187445380424,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.87035174288573,"endHours":12.563600997698332,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:38","end":"06:19","startHours":5.631108449572299,"endHours":6.3243577043849015,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:09","end":"07:01","startHours":6.151045390681751,"endHours":7.017606959197505,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:39","startHours":13.95009950732354,"endHours":14.643348762136142,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:13","end":"17:37","startHours":17.216345781386558,"endHours":17.616345781386556,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:25","end":"17:51","startHours":17.416345781386557,"endHours":17.849626565644435,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:10","end":"18:55","startHours":17.166345781386557,"endHours":18.916345781386557,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.870351742885727,"endHours":24.563600997698334,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:01","end":"08:19","startHours":7.017606959197505,"endHours":8.317449311971137,"quality":"auspicious"},{"name":"Amṛta","start":"08:19","end":"09:37","startHours":8.317449311971137,"endHours":9.61729166474477,"quality":"auspicious"},{"name":"Kāla","start":"09:37","end":"10:55","startHours":9.61729166474477,"endHours":10.9171340175184,"quality":"inauspicious"},{"name":"Śubha","start":"10:55","end":"12:13","startHours":10.9171340175184,"endHours":12.21697637029203,"quality":"auspicious"},{"name":"Roga","start":"12:13","end":"13:31","startHours":12.21697637029203,"endHours":13.516818723065663,"quality":"inauspicious"},{"name":"Udveg","start":"13:31","end":"14:49","startHours":13.516818723065663,"endHours":14.816661075839296,"quality":"inauspicious"},{"name":"Chala","start":"14:49","end":"16:07","startHours":14.816661075839296,"endHours":16.116503428612926,"quality":"neutral"},{"name":"Labha","start":"16:07","end":"17:25","startHours":16.116503428612926,"endHours":17.416345781386557,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:25","end":"19:07","startHours":17.416345781386557,"endHours":19.116503428612926,"quality":"inauspicious"},{"name":"Chala","start":"19:07","end":"20:49","startHours":19.116503428612926,"endHours":20.816661075839292,"quality":"neutral"},{"name":"Labha","start":"20:49","end":"22:31","startHours":20.816661075839292,"endHours":22.51681872306566,"quality":"auspicious"},{"name":"Amṛta","start":"22:31","end":"00:13","startHours":22.51681872306566,"endHours":24.21697637029203,"quality":"auspicious"},{"name":"Kāla","start":"00:13","end":"01:55","startHours":24.21697637029203,"endHours":25.9171340175184,"quality":"inauspicious"},{"name":"Śubha","start":"01:55","end":"03:37","startHours":25.9171340175184,"endHours":27.61729166474477,"quality":"auspicious"},{"name":"Roga","start":"03:37","end":"05:19","startHours":27.61729166474477,"endHours":29.317449311971135,"quality":"inauspicious"},{"name":"Udveg","start":"05:19","end":"07:01","startHours":29.317449311971135,"endHours":31.017606959197504,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:01","end":"08:01","startHours":7.017606959197505,"endHours":8.017606959197504,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:01","end":"09:01","startHours":8.017606959197504,"endHours":9.017606959197504,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:01","end":"10:01","startHours":9.017606959197504,"endHours":10.017606959197504,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:01","end":"11:01","startHours":10.017606959197504,"endHours":11.017606959197504,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:01","end":"12:01","startHours":11.017606959197504,"endHours":12.017606959197504,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:01","end":"13:01","startHours":12.017606959197504,"endHours":13.017606959197504,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:01","end":"14:01","startHours":13.017606959197504,"endHours":14.017606959197504,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:01","end":"15:01","startHours":14.017606959197504,"endHours":15.017606959197504,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:01","end":"16:01","startHours":15.017606959197504,"endHours":16.017606959197504,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:01","end":"17:01","startHours":16.017606959197504,"endHours":17.017606959197504,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:01","end":"18:01","startHours":17.017606959197504,"endHours":18.017606959197504,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:01","end":"19:01","startHours":18.017606959197504,"endHours":19.017606959197504,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:01","end":"20:01","startHours":19.017606959197504,"endHours":20.017606959197504,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:01","end":"21:01","startHours":20.017606959197504,"endHours":21.017606959197504,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:01","end":"22:01","startHours":21.017606959197504,"endHours":22.017606959197504,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:01","end":"23:01","startHours":22.017606959197504,"endHours":23.017606959197504,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:01","end":"00:01","startHours":23.017606959197504,"endHours":24.017606959197504,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:01","end":"01:01","startHours":24.017606959197504,"endHours":25.017606959197504,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:01","end":"02:01","startHours":25.017606959197504,"endHours":26.017606959197504,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:01","end":"03:01","startHours":26.017606959197504,"endHours":27.017606959197504,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:01","end":"04:01","startHours":27.017606959197504,"endHours":28.017606959197504,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:01","end":"05:01","startHours":28.017606959197504,"endHours":29.017606959197504,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:01","end":"06:01","startHours":29.017606959197504,"endHours":30.017606959197504,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:01","end":"07:01","startHours":30.017606959197504,"endHours":31.017606959197504,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"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":"North (Uttara)","chandraVasa":"North","rahuVasa":"South-West","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":19.943447969995056,"eotMinutes":3.539417782478063,"ayanamsa":22.4894}},"calendars":{"vikram_samvat":1959,"vikram_samvatsara":"Rākṣasa","saka_samvat":1824,"saka_samvatsara":"Śubhakṛt","bengali_samvat":1309,"malayalam_era":1078,"nanakshahi_year":433,"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":"Vṛṣabha (Vaikāsi)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Caturdaśī · Vikram 1959 Rākṣasa · Śaka 1824 Śubhakṛt"},"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":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"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 21, 1902 CE · Perth, Australia · Vidhyamitra","description":"May 21, 1902 CE for Perth, Australia: Śukla Caturdaśī, sūryodaya 07:01, sūryāsta 17:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1902-05-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1902-05-21","sa":"https://sa.vidhyamitra.com/city/perth/1902-05-21","hi":"https://hi.vidhyamitra.com/city/perth/1902-05-21","x-default":"https://vidhyamitra.com/city/perth/1902-05-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T23:44:11.435Z","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":"2026-06-01T23:44:11.435Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T23:44:11.435Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}