{"id":"vidhyamitra:city-day:perth:1899-05-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1899-05-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1899-05-18","date_display":"May 18, 1899 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":1899,"month":5,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2414792.770833,"kali_year":5001,"ahargana":1826327.2708,"sun":{"sidereal_longitude":34.6042,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":129.6455,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":95.0413,"elapsed_within_tithi_degrees":11.0413},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":129.6455,"elapsed_within_degrees":9.6455},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":164.2498},"karana":{"half_tithi_index":15,"name":"Bava"},"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":1899,"month":5,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2414792.770833,"ahargana":1826327.2708,"kali_year":5001,"ayanamsa_lahiri":22.4474,"grahas":{"sun":{"sidereal_longitude":34.412015999999994,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":127.950916,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false,"latitude":-3.7837},"mars":{"sidereal_longitude":113.53261599999996,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":11.026016000000027,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":191.33611599999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":4.076116000000013,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":240.883016,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":252.3923,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":72.3923,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":1899,"month":5,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2414792.770833,"kali_year":5001,"ahargana":1826327.2708,"sun":{"sidereal_longitude":34.6042,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":129.6455,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":95.0413,"elapsed_within_tithi_degrees":11.0413},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":129.6455,"elapsed_within_degrees":9.6455},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":164.2498},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.784,"elongation":95.041},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.784,"opposition_distance":84.959}},"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":"07:00","sunsetLocal":"17:26","solarNoonLocal":"12:13","dayLengthHours":10.445311482407632,"dayLengthDisplay":"10 Hours 26 Mins 43 Secs","nightLengthDisplay":"13 Hours 33 Mins 17 Secs","moonriseLocal":"12:53","moonsetLocal":"00:01","rahuKala":{"name":"Rāhu Kāla","start":"13:31","end":"14:50","startHours":13.520144232126462,"endHours":14.825808167427414,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:00","end":"08:18","startHours":6.991824555621691,"endHours":8.297488490922646,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:36","end":"10:55","startHours":9.603152426223598,"endHours":10.908816361524554,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:47","startHours":9.429063901516805,"endHours":9.777240950930393,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:26","end":"07:42","startHours":7.427045867388676,"endHours":7.705587506919546,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.866303247411919,"endHours":12.562657346239094,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:36","end":"06:18","startHours":5.59911635796734,"endHours":6.295470456794516,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:07","end":"07:00","startHours":6.121381932087722,"endHours":6.991824555621691,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:39","startHours":13.955365543893446,"endHours":14.651719642720622,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:14","end":"17:38","startHours":17.237136038029323,"endHours":17.637136038029322,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:26","end":"17:52","startHours":17.437136038029323,"endHours":17.872357349796307,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:11","end":"18:56","startHours":17.187136038029323,"endHours":18.937136038029323,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.866303247411917,"endHours":24.562657346239096,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:00","end":"08:18","startHours":6.991824555621691,"endHours":8.297488490922646,"quality":"auspicious"},{"name":"Roga","start":"08:18","end":"09:36","startHours":8.297488490922646,"endHours":9.603152426223598,"quality":"inauspicious"},{"name":"Udveg","start":"09:36","end":"10:55","startHours":9.603152426223598,"endHours":10.908816361524554,"quality":"inauspicious"},{"name":"Chala","start":"10:55","end":"12:13","startHours":10.908816361524554,"endHours":12.214480296825506,"quality":"neutral"},{"name":"Labha","start":"12:13","end":"13:31","startHours":12.214480296825506,"endHours":13.520144232126462,"quality":"auspicious"},{"name":"Amṛta","start":"13:31","end":"14:50","startHours":13.520144232126462,"endHours":14.825808167427414,"quality":"auspicious"},{"name":"Kāla","start":"14:50","end":"16:08","startHours":14.825808167427414,"endHours":16.13147210272837,"quality":"inauspicious"},{"name":"Śubha","start":"16:08","end":"17:26","startHours":16.13147210272837,"endHours":17.437136038029323,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:26","end":"19:08","startHours":17.437136038029323,"endHours":19.131472102728367,"quality":"auspicious"},{"name":"Kāla","start":"19:08","end":"20:50","startHours":19.131472102728367,"endHours":20.825808167427414,"quality":"inauspicious"},{"name":"Śubha","start":"20:50","end":"22:31","startHours":20.825808167427414,"endHours":22.520144232126462,"quality":"auspicious"},{"name":"Roga","start":"22:31","end":"00:13","startHours":22.520144232126462,"endHours":24.214480296825506,"quality":"inauspicious"},{"name":"Udveg","start":"00:13","end":"01:55","startHours":24.214480296825506,"endHours":25.90881636152455,"quality":"inauspicious"},{"name":"Chala","start":"01:55","end":"03:36","startHours":25.90881636152455,"endHours":27.6031524262236,"quality":"neutral"},{"name":"Labha","start":"03:36","end":"05:18","startHours":27.6031524262236,"endHours":29.297488490922646,"quality":"auspicious"},{"name":"Amṛta","start":"05:18","end":"07:00","startHours":29.297488490922646,"endHours":30.99182455562169,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:00","end":"08:00","startHours":6.991824555621691,"endHours":7.991824555621691,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:00","end":"09:00","startHours":7.991824555621691,"endHours":8.99182455562169,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:00","end":"10:00","startHours":8.99182455562169,"endHours":9.99182455562169,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:00","end":"11:00","startHours":9.99182455562169,"endHours":10.99182455562169,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:00","end":"12:00","startHours":10.99182455562169,"endHours":11.99182455562169,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:00","end":"13:00","startHours":11.99182455562169,"endHours":12.99182455562169,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:00","end":"14:00","startHours":12.99182455562169,"endHours":13.99182455562169,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:00","end":"15:00","startHours":13.99182455562169,"endHours":14.99182455562169,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:00","end":"16:00","startHours":14.99182455562169,"endHours":15.99182455562169,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:00","end":"17:00","startHours":15.99182455562169,"endHours":16.99182455562169,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:00","end":"18:00","startHours":16.99182455562169,"endHours":17.99182455562169,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:00","end":"19:00","startHours":17.99182455562169,"endHours":18.99182455562169,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:00","end":"20:00","startHours":18.99182455562169,"endHours":19.99182455562169,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:00","end":"21:00","startHours":19.99182455562169,"endHours":20.99182455562169,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:00","end":"22:00","startHours":20.99182455562169,"endHours":21.99182455562169,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:00","end":"23:00","startHours":21.99182455562169,"endHours":22.99182455562169,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:00","end":"00:00","startHours":22.99182455562169,"endHours":23.99182455562169,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:00","end":"01:00","startHours":23.99182455562169,"endHours":24.99182455562169,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:00","end":"02:00","startHours":24.99182455562169,"endHours":25.99182455562169,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:00","end":"03:00","startHours":25.99182455562169,"endHours":26.99182455562169,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:00","end":"04:00","startHours":26.99182455562169,"endHours":27.99182455562169,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:00","end":"05:00","startHours":27.99182455562169,"endHours":28.99182455562169,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:00","end":"06:00","startHours":28.99182455562169,"endHours":29.99182455562169,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:00","end":"07:00","startHours":29.99182455562169,"endHours":30.99182455562169,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":19.453030371096748,"eotMinutes":3.6891821904695723,"ayanamsa":22.4474}},"calendars":{"vikram_samvat":1956,"vikram_samvatsara":"Paridhāvi","saka_samvat":1821,"saka_samvatsara":"Vikāri","bengali_samvat":1306,"malayalam_era":1075,"nanakshahi_year":430,"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 Aṣṭamī · Vikram 1956 Paridhāvi · Śaka 1821 Vikāri"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","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 18, 1899 CE · Perth, Australia · Vidhyamitra","description":"May 18, 1899 CE for Perth, Australia: Śukla Aṣṭamī, sūryodaya 07:00, sūryāsta 17:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1899-05-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1899-05-18","sa":"https://sa.vidhyamitra.com/city/perth/1899-05-18","hi":"https://hi.vidhyamitra.com/city/perth/1899-05-18","x-default":"https://vidhyamitra.com/city/perth/1899-05-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T07:09:22.745Z","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":"2026-06-02T07:09:22.745Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T07:09:22.745Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}