{"id":"vidhyamitra:city-day:perth:2005-05-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2005-05-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2005-05-18","date_display":"May 18, 2005 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":2005,"month":5,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453508.770833,"kali_year":5107,"ahargana":1865043.2708,"sun":{"sidereal_longitude":33.2379,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":143.012,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":109.7741,"elapsed_within_tithi_degrees":1.7741},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":143.012,"elapsed_within_degrees":9.6786},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":176.2499},"karana":{"half_tithi_index":18,"name":"Taitila"},"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":2005,"month":5,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2453508.770833,"ahargana":1865043.2708,"kali_year":5107,"ayanamsa_lahiri":23.9281,"grahas":{"sun":{"sidereal_longitude":33.28628000000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":141.89258,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false,"latitude":2.77},"mars":{"sidereal_longitude":318.2504799999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":15.388980000000004,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":165.92787999999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"venus":{"sidereal_longitude":45.67557999999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":89.09557999999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":1.0323,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":181.0323,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"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":2005,"month":5,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453508.770833,"kali_year":5107,"ahargana":1865043.2708,"sun":{"sidereal_longitude":33.2379,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":143.012,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":109.7741,"elapsed_within_tithi_degrees":1.7741},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":143.012,"elapsed_within_degrees":9.6786},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":176.2499},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.77,"elongation":109.774},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.77,"opposition_distance":70.226}},"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":10.437596107298674,"dayLengthDisplay":"10 Hours 26 Mins 15 Secs","nightLengthDisplay":"13 Hours 33 Mins 45 Secs","moonriseLocal":"13:39","moonsetLocal":"01:16","rahuKala":{"name":"Rāhu Kāla","start":"12:13","end":"13:31","startHours":12.214480296825506,"endHours":13.51917981023784,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:18","end":"09:36","startHours":8.300381756588504,"endHours":9.605081270000838,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:55","end":"12:13","startHours":10.909780783413172,"endHours":12.214480296825506,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:47","startHours":9.431121334879192,"endHours":9.779041205122482,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:26","end":"07:43","startHours":7.43058208098028,"endHours":7.708917977174911,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.866560426582216,"endHours":12.562400167068796,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:36","end":"06:18","startHours":5.604002762203012,"endHours":6.29984250268959,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:08","end":"07:00","startHours":6.125882567567945,"endHours":6.9956822431761685,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:39","startHours":13.954079648041951,"endHours":14.649919388528529,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:14","end":"17:38","startHours":17.233278350474844,"endHours":17.633278350474843,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:26","end":"17:52","startHours":17.433278350474843,"endHours":17.868178188278954,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:11","end":"18:56","startHours":17.183278350474843,"endHours":18.933278350474843,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.866560426582218,"endHours":24.562400167068795,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:00","end":"08:18","startHours":6.9956822431761685,"endHours":8.300381756588504,"quality":"auspicious"},{"name":"Amṛta","start":"08:18","end":"09:36","startHours":8.300381756588504,"endHours":9.605081270000838,"quality":"auspicious"},{"name":"Kāla","start":"09:36","end":"10:55","startHours":9.605081270000838,"endHours":10.909780783413172,"quality":"inauspicious"},{"name":"Śubha","start":"10:55","end":"12:13","startHours":10.909780783413172,"endHours":12.214480296825506,"quality":"auspicious"},{"name":"Roga","start":"12:13","end":"13:31","startHours":12.214480296825506,"endHours":13.51917981023784,"quality":"inauspicious"},{"name":"Udveg","start":"13:31","end":"14:49","startHours":13.51917981023784,"endHours":14.823879323650175,"quality":"inauspicious"},{"name":"Chala","start":"14:49","end":"16:08","startHours":14.823879323650175,"endHours":16.12857883706251,"quality":"neutral"},{"name":"Labha","start":"16:08","end":"17:26","startHours":16.12857883706251,"endHours":17.433278350474843,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:26","end":"19:08","startHours":17.433278350474843,"endHours":19.12857883706251,"quality":"inauspicious"},{"name":"Chala","start":"19:08","end":"20:49","startHours":19.12857883706251,"endHours":20.823879323650175,"quality":"neutral"},{"name":"Labha","start":"20:49","end":"22:31","startHours":20.823879323650175,"endHours":22.51917981023784,"quality":"auspicious"},{"name":"Amṛta","start":"22:31","end":"00:13","startHours":22.51917981023784,"endHours":24.214480296825506,"quality":"auspicious"},{"name":"Kāla","start":"00:13","end":"01:55","startHours":24.214480296825506,"endHours":25.909780783413172,"quality":"inauspicious"},{"name":"Śubha","start":"01:55","end":"03:36","startHours":25.909780783413172,"endHours":27.605081270000838,"quality":"auspicious"},{"name":"Roga","start":"03:36","end":"05:18","startHours":27.605081270000838,"endHours":29.300381756588504,"quality":"inauspicious"},{"name":"Udveg","start":"05:18","end":"07:00","startHours":29.300381756588504,"endHours":30.99568224317617,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:00","end":"08:00","startHours":6.9956822431761685,"endHours":7.9956822431761685,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:00","end":"09:00","startHours":7.9956822431761685,"endHours":8.99568224317617,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:00","end":"10:00","startHours":8.99568224317617,"endHours":9.99568224317617,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:00","end":"11:00","startHours":9.99568224317617,"endHours":10.99568224317617,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:00","end":"12:00","startHours":10.99568224317617,"endHours":11.99568224317617,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:00","end":"13:00","startHours":11.99568224317617,"endHours":12.99568224317617,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:00","end":"14:00","startHours":12.99568224317617,"endHours":13.99568224317617,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:00","end":"15:00","startHours":13.99568224317617,"endHours":14.99568224317617,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:00","end":"16:00","startHours":14.99568224317617,"endHours":15.99568224317617,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:00","end":"17:00","startHours":15.99568224317617,"endHours":16.99568224317617,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:00","end":"18:00","startHours":16.99568224317617,"endHours":17.99568224317617,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:00","end":"19:00","startHours":17.99568224317617,"endHours":18.99568224317617,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:00","end":"20:00","startHours":18.99568224317617,"endHours":19.99568224317617,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:00","end":"21:00","startHours":19.99568224317617,"endHours":20.99568224317617,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:00","end":"22:00","startHours":20.99568224317617,"endHours":21.99568224317617,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:00","end":"23:00","startHours":21.99568224317617,"endHours":22.99568224317617,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:00","end":"00:00","startHours":22.99568224317617,"endHours":23.99568224317617,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:00","end":"01:00","startHours":23.99568224317617,"endHours":24.99568224317617,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:00","end":"02:00","startHours":24.99568224317617,"endHours":25.99568224317617,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:00","end":"03:00","startHours":25.99568224317617,"endHours":26.99568224317617,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:00","end":"04:00","startHours":26.99568224317617,"endHours":27.99568224317617,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:00","end":"05:00","startHours":27.99568224317617,"endHours":28.99568224317617,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:00","end":"06:00","startHours":28.99568224317617,"endHours":29.99568224317617,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:00","end":"07:00","startHours":29.99568224317617,"endHours":30.99568224317617,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","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":"North (Uttara)","chandraVasa":"West","rahuVasa":"South-West","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":19.534517537691265,"eotMinutes":3.6891821904695723,"ayanamsa":23.9281}},"calendars":{"vikram_samvat":2062,"vikram_samvatsara":"Vilambī","saka_samvat":1927,"saka_samvatsara":"Pārthiva","bengali_samvat":1412,"malayalam_era":1181,"nanakshahi_year":536,"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 2062 Vilambī · Śaka 1927 Pārthiva"},"festivals":[],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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, 2005 CE · Perth, Australia · Vidhyamitra","description":"May 18, 2005 CE for Perth, Australia: Śukla Daśamī, sūryodaya 07:00, sūryāsta 17:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2005-05-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2005-05-18","sa":"https://sa.vidhyamitra.com/city/perth/2005-05-18","hi":"https://hi.vidhyamitra.com/city/perth/2005-05-18","x-default":"https://vidhyamitra.com/city/perth/2005-05-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T00:29:45.862Z","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":"2026-05-31T00:29:45.862Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T00:29:45.862Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}