{"id":"vidhyamitra:city-day:perth:2174-05-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2174-05-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2174-05-18","date_display":"May 18, 2174 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":2174,"month":5,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515234.770833,"kali_year":5276,"ahargana":1926769.2708,"sun":{"sidereal_longitude":30.6237,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":224.8175,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.1937,"elapsed_within_tithi_degrees":2.1937},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":224.8175,"elapsed_within_degrees":11.4841},"yoga":{"number":20,"name":"Śiva","sum_longitude":255.4412},"karana":{"half_tithi_index":32,"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":2174,"month":5,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2515234.770833,"ahargana":1926769.2708,"kali_year":5276,"ayanamsa_lahiri":26.2889,"grahas":{"sun":{"sidereal_longitude":31.054393000000005,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":225.60939299999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false,"latitude":-4.3323},"mars":{"sidereal_longitude":223.970593,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":14.104292999999984,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":263.71779300000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":358.529293,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":353.894193,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":330.4918,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":150.4918,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":2174,"month":5,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515234.770833,"kali_year":5276,"ahargana":1926769.2708,"sun":{"sidereal_longitude":30.6237,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":224.8175,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.1937,"elapsed_within_tithi_degrees":2.1937},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":224.8175,"elapsed_within_degrees":11.4841},"yoga":{"number":20,"name":"Śiva","sum_longitude":255.4412},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.332,"elongation":165.806},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.332,"opposition_distance":14.194}},"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":10.43480917241868,"dayLengthDisplay":"10 Hours 26 Mins 05 Secs","nightLengthDisplay":"13 Hours 33 Mins 55 Secs","moonriseLocal":"18:09","moonsetLocal":"08:13","rahuKala":{"name":"Rāhu Kāla","start":"12:13","end":"13:31","startHours":12.214480296825506,"endHours":13.518831443377842,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:18","end":"09:36","startHours":8.301426857168503,"endHours":9.605778003720838,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:55","end":"12:13","startHours":10.910129150273171,"endHours":12.214480296825506,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:47","startHours":9.431864517513858,"endHours":9.779691489927815,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:26","end":"07:43","startHours":7.431859426133612,"endHours":7.710121004064777,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.866653324411551,"endHours":12.562307269239462,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:36","end":"06:18","startHours":5.605767820960343,"endHours":6.301421765788255,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:08","end":"07:00","startHours":6.127508279581278,"endHours":6.997075710616167,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:39","startHours":13.953615158895287,"endHours":14.6492691037232,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:14","end":"17:38","startHours":17.231884883034848,"endHours":17.631884883034846,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:26","end":"17:52","startHours":17.431884883034847,"endHours":17.86666859855229,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:11","end":"18:56","startHours":17.181884883034847,"endHours":18.931884883034847,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.86665332441155,"endHours":24.56230726923946,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:00","end":"08:18","startHours":6.997075710616167,"endHours":8.301426857168503,"quality":"auspicious"},{"name":"Amṛta","start":"08:18","end":"09:36","startHours":8.301426857168503,"endHours":9.605778003720838,"quality":"auspicious"},{"name":"Kāla","start":"09:36","end":"10:55","startHours":9.605778003720838,"endHours":10.910129150273171,"quality":"inauspicious"},{"name":"Śubha","start":"10:55","end":"12:13","startHours":10.910129150273171,"endHours":12.214480296825506,"quality":"auspicious"},{"name":"Roga","start":"12:13","end":"13:31","startHours":12.214480296825506,"endHours":13.518831443377842,"quality":"inauspicious"},{"name":"Udveg","start":"13:31","end":"14:49","startHours":13.518831443377842,"endHours":14.823182589930177,"quality":"inauspicious"},{"name":"Chala","start":"14:49","end":"16:08","startHours":14.823182589930177,"endHours":16.127533736482512,"quality":"neutral"},{"name":"Labha","start":"16:08","end":"17:26","startHours":16.127533736482512,"endHours":17.431884883034847,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:26","end":"19:08","startHours":17.431884883034847,"endHours":19.127533736482512,"quality":"inauspicious"},{"name":"Chala","start":"19:08","end":"20:49","startHours":19.127533736482512,"endHours":20.823182589930177,"quality":"neutral"},{"name":"Labha","start":"20:49","end":"22:31","startHours":20.823182589930177,"endHours":22.51883144337784,"quality":"auspicious"},{"name":"Amṛta","start":"22:31","end":"00:13","startHours":22.51883144337784,"endHours":24.214480296825506,"quality":"auspicious"},{"name":"Kāla","start":"00:13","end":"01:55","startHours":24.214480296825506,"endHours":25.91012915027317,"quality":"inauspicious"},{"name":"Śubha","start":"01:55","end":"03:36","startHours":25.91012915027317,"endHours":27.605778003720836,"quality":"auspicious"},{"name":"Roga","start":"03:36","end":"05:18","startHours":27.605778003720836,"endHours":29.3014268571685,"quality":"inauspicious"},{"name":"Udveg","start":"05:18","end":"07:00","startHours":29.3014268571685,"endHours":30.997075710616166,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:00","end":"08:00","startHours":6.997075710616167,"endHours":7.997075710616167,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:00","end":"09:00","startHours":7.997075710616167,"endHours":8.997075710616167,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:00","end":"10:00","startHours":8.997075710616167,"endHours":9.997075710616167,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:00","end":"11:00","startHours":9.997075710616167,"endHours":10.997075710616167,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:00","end":"12:00","startHours":10.997075710616167,"endHours":11.997075710616167,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:00","end":"13:00","startHours":11.997075710616167,"endHours":12.997075710616167,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:00","end":"14:00","startHours":12.997075710616167,"endHours":13.997075710616167,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:00","end":"15:00","startHours":13.997075710616167,"endHours":14.997075710616167,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:00","end":"16:00","startHours":14.997075710616167,"endHours":15.997075710616167,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:00","end":"17:00","startHours":15.997075710616167,"endHours":16.997075710616166,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:00","end":"18:00","startHours":16.997075710616166,"endHours":17.997075710616166,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:00","end":"19:00","startHours":17.997075710616166,"endHours":18.997075710616166,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:00","end":"20:00","startHours":18.997075710616166,"endHours":19.997075710616166,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:00","end":"21:00","startHours":19.997075710616166,"endHours":20.997075710616166,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:00","end":"22:00","startHours":20.997075710616166,"endHours":21.997075710616166,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:00","end":"23:00","startHours":21.997075710616166,"endHours":22.997075710616166,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:00","end":"00:00","startHours":22.997075710616166,"endHours":23.997075710616166,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:00","end":"01:00","startHours":23.997075710616166,"endHours":24.997075710616166,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:00","end":"02:00","startHours":24.997075710616166,"endHours":25.997075710616166,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:00","end":"03:00","startHours":25.997075710616166,"endHours":26.997075710616166,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:00","end":"04:00","startHours":26.997075710616166,"endHours":27.997075710616166,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:00","end":"05:00","startHours":27.997075710616166,"endHours":28.997075710616166,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:00","end":"06:00","startHours":28.997075710616166,"endHours":29.997075710616166,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:00","end":"07:00","startHours":29.997075710616166,"endHours":30.997075710616166,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"North-East","rahuVasa":"South-West","anandadiYoga":{"name":"Ānanda","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":19.563928564378372,"eotMinutes":3.6891821904695723,"ayanamsa":26.2889}},"calendars":{"vikram_samvat":2231,"vikram_samvatsara":"Sarvajit","saka_samvat":2096,"saka_samvatsara":"Bhāva","bengali_samvat":1581,"malayalam_era":1350,"nanakshahi_year":705,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","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":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Dvitīyā · Vikram 2231 Sarvajit · Śaka 2096 Bhāva"},"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, 2174 CE · Perth, Australia · Vidhyamitra","description":"May 18, 2174 CE for Perth, Australia: Kṛṣṇa Dvitīyā, sūryodaya 07:00, sūryāsta 17:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2174-05-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2174-05-18","sa":"https://sa.vidhyamitra.com/city/perth/2174-05-18","hi":"https://hi.vidhyamitra.com/city/perth/2174-05-18","x-default":"https://vidhyamitra.com/city/perth/2174-05-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T01:42:50.627Z","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":"2026-05-31T01:42:50.627Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T01:42:50.627Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}