{"id":"vidhyamitra:city-day:perth:1891-05-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1891-05-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1891-05-18","date_display":"May 18, 1891 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":1891,"month":5,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2411870.770833,"kali_year":4993,"ahargana":1823405.2708,"sun":{"sidereal_longitude":34.6712,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":148.2607,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":113.5895,"elapsed_within_tithi_degrees":5.5895},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":148.2607,"elapsed_within_degrees":1.5941},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":182.932},"karana":{"half_tithi_index":18,"name":"Taitila"},"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":1891,"month":5,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2411870.770833,"ahargana":1823405.2708,"kali_year":4993,"ayanamsa_lahiri":22.3356,"grahas":{"sun":{"sidereal_longitude":34.460357999999985,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":149.08405800000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false,"latitude":4.4165},"mars":{"sidereal_longitude":58.16375800000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":24.20795800000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":323.37105799999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":3.7124580000000265,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":138.926158,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":47.2139,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":227.2139,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","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":1891,"month":5,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2411870.770833,"kali_year":4993,"ahargana":1823405.2708,"sun":{"sidereal_longitude":34.6712,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":148.2607,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":113.5895,"elapsed_within_tithi_degrees":5.5895},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":148.2607,"elapsed_within_degrees":1.5941},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":182.932},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.416,"elongation":113.589},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.416,"opposition_distance":66.411}},"eclipse_window_40days":[{"offset_days":6,"type":"lunar","occurs":true,"moon_latitude":0.297,"opposition_distance":2.708}]},"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":"06:59","sunsetLocal":"17:26","solarNoonLocal":"12:13","dayLengthHours":10.446697168715133,"dayLengthDisplay":"10 Hours 26 Mins 48 Secs","nightLengthDisplay":"13 Hours 33 Mins 12 Secs","moonriseLocal":"13:57","moonsetLocal":"01:46","rahuKala":{"name":"Rāhu Kāla","start":"08:18","end":"09:36","startHours":8.296968858557332,"endHours":9.602806004646723,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:55","end":"12:13","startHours":10.908643150736115,"endHours":12.214480296825506,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:31","end":"14:50","startHours":13.520317442914898,"endHours":14.82615458900429,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:47","startHours":9.428694385168136,"endHours":9.776917624125307,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:26","end":"07:42","startHours":7.426410761164403,"endHours":7.7049893523301405,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.866257057868335,"endHours":12.562703535782678,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:36","end":"06:18","startHours":5.598238756639255,"endHours":6.294685234553597,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:07","end":"06:59","startHours":6.120573615075012,"endHours":6.991131712467939,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:39","startHours":13.955596491611361,"endHours":14.652042969525704,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:14","end":"17:38","startHours":17.237828881183074,"endHours":17.637828881183072,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:26","end":"17:52","startHours":17.437828881183073,"endHours":17.873107929879538,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:11","end":"18:56","startHours":17.187828881183073,"endHours":18.937828881183073,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.866257057868335,"endHours":24.562703535782678,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:59","end":"08:18","startHours":6.991131712467939,"endHours":8.296968858557332,"quality":"auspicious"},{"name":"Kāla","start":"08:18","end":"09:36","startHours":8.296968858557332,"endHours":9.602806004646723,"quality":"inauspicious"},{"name":"Śubha","start":"09:36","end":"10:55","startHours":9.602806004646723,"endHours":10.908643150736115,"quality":"auspicious"},{"name":"Roga","start":"10:55","end":"12:13","startHours":10.908643150736115,"endHours":12.214480296825506,"quality":"inauspicious"},{"name":"Udveg","start":"12:13","end":"13:31","startHours":12.214480296825506,"endHours":13.520317442914898,"quality":"inauspicious"},{"name":"Chala","start":"13:31","end":"14:50","startHours":13.520317442914898,"endHours":14.82615458900429,"quality":"neutral"},{"name":"Labha","start":"14:50","end":"16:08","startHours":14.82615458900429,"endHours":16.13199173509368,"quality":"auspicious"},{"name":"Amṛta","start":"16:08","end":"17:26","startHours":16.13199173509368,"endHours":17.437828881183073,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:26","end":"19:08","startHours":17.437828881183073,"endHours":19.13199173509368,"quality":"neutral"},{"name":"Labha","start":"19:08","end":"20:50","startHours":19.13199173509368,"endHours":20.82615458900429,"quality":"auspicious"},{"name":"Amṛta","start":"20:50","end":"22:31","startHours":20.82615458900429,"endHours":22.520317442914898,"quality":"auspicious"},{"name":"Kāla","start":"22:31","end":"00:13","startHours":22.520317442914898,"endHours":24.214480296825506,"quality":"inauspicious"},{"name":"Śubha","start":"00:13","end":"01:55","startHours":24.214480296825506,"endHours":25.908643150736115,"quality":"auspicious"},{"name":"Roga","start":"01:55","end":"03:36","startHours":25.908643150736115,"endHours":27.602806004646723,"quality":"inauspicious"},{"name":"Udveg","start":"03:36","end":"05:18","startHours":27.602806004646723,"endHours":29.29696885855733,"quality":"inauspicious"},{"name":"Chala","start":"05:18","end":"06:59","startHours":29.29696885855733,"endHours":30.99113171246794,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:59","end":"07:59","startHours":6.991131712467939,"endHours":7.991131712467939,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:59","end":"08:59","startHours":7.991131712467939,"endHours":8.99113171246794,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:59","end":"09:59","startHours":8.99113171246794,"endHours":9.99113171246794,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:59","end":"10:59","startHours":9.99113171246794,"endHours":10.99113171246794,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:59","end":"11:59","startHours":10.99113171246794,"endHours":11.99113171246794,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:59","end":"12:59","startHours":11.99113171246794,"endHours":12.99113171246794,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:59","end":"13:59","startHours":12.99113171246794,"endHours":13.99113171246794,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:59","end":"14:59","startHours":13.99113171246794,"endHours":14.99113171246794,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:59","end":"15:59","startHours":14.99113171246794,"endHours":15.99113171246794,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:59","end":"16:59","startHours":15.99113171246794,"endHours":16.99113171246794,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:59","end":"17:59","startHours":16.99113171246794,"endHours":17.99113171246794,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:59","end":"18:59","startHours":17.99113171246794,"endHours":18.99113171246794,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:59","end":"19:59","startHours":18.99113171246794,"endHours":19.99113171246794,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:59","end":"20:59","startHours":19.99113171246794,"endHours":20.99113171246794,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:59","end":"21:59","startHours":20.99113171246794,"endHours":21.99113171246794,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:59","end":"22:59","startHours":21.99113171246794,"endHours":22.99113171246794,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:59","end":"23:59","startHours":22.99113171246794,"endHours":23.99113171246794,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:59","end":"00:59","startHours":23.99113171246794,"endHours":24.99113171246794,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:59","end":"01:59","startHours":24.99113171246794,"endHours":25.99113171246794,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:59","end":"02:59","startHours":25.99113171246794,"endHours":26.99113171246794,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:59","end":"03:59","startHours":26.99113171246794,"endHours":27.99113171246794,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:59","end":"04:59","startHours":27.99113171246794,"endHours":28.99113171246794,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:59","end":"05:59","startHours":28.99113171246794,"endHours":29.99113171246794,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:59","end":"06:59","startHours":29.99113171246794,"endHours":30.99113171246794,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","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":"East (Pūrva)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":19.438385055609583,"eotMinutes":3.6891821904695723,"ayanamsa":22.3356}},"calendars":{"vikram_samvat":1948,"vikram_samvatsara":"Krodhi","saka_samvat":1813,"saka_samvatsara":"Khara","bengali_samvat":1298,"malayalam_era":1067,"nanakshahi_year":422,"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 Daśamī · Vikram 1948 Krodhi · Śaka 1813 Khara"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 18, 1891 CE · Perth, Australia · Vidhyamitra","description":"May 18, 1891 CE for Perth, Australia: Śukla Daśamī, sūryodaya 06:59, sūryāsta 17:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1891-05-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1891-05-18","sa":"https://sa.vidhyamitra.com/city/perth/1891-05-18","hi":"https://hi.vidhyamitra.com/city/perth/1891-05-18","x-default":"https://vidhyamitra.com/city/perth/1891-05-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T22:56:10.294Z","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":"2026-06-01T22:56:10.294Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T22:56:10.294Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}