{"id":"vidhyamitra:city-day:perth:2173-11-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2173-11-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2173-11-18","date_display":"November 18, 2173 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":2173,"month":11,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515053.770833,"kali_year":5275,"ahargana":1926588.2708,"sun":{"sidereal_longitude":208.7458,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":10.9763,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":162.2306,"elapsed_within_tithi_degrees":6.2306},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":10.9763,"elapsed_within_degrees":10.9763},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":219.7221},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"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":2173,"month":11,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2515053.770833,"ahargana":1926588.2708,"kali_year":5275,"ayanamsa_lahiri":26.282,"grahas":{"sun":{"sidereal_longitude":209.77130799999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":10.453408000000024,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false,"latitude":2.3088},"mars":{"sidereal_longitude":157.07110799999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":209.054708,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":234.879408,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":216.47190799999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":339.468408,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":340.082,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":160.082,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":2173,"month":11,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515053.770833,"kali_year":5275,"ahargana":1926588.2708,"sun":{"sidereal_longitude":208.7458,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":10.9763,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":162.2306,"elapsed_within_tithi_degrees":6.2306},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":10.9763,"elapsed_within_degrees":10.9763},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":219.7221},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.309,"elongation":162.231},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.309,"opposition_distance":17.769}},"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":"05:08","sunsetLocal":"18:57","solarNoonLocal":"12:02","dayLengthHours":13.821108961886821,"dayLengthDisplay":"13 Hours 49 Mins 16 Secs","nightLengthDisplay":"10 Hours 10 Mins 44 Secs","moonriseLocal":"17:17","moonsetLocal":"04:13","rahuKala":{"name":"Rāhu Kāla","start":"13:46","end":"15:30","startHours":13.766808274922017,"endHours":15.494446895157871,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:08","end":"06:51","startHours":5.128615173742754,"endHours":6.856253793978607,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:35","end":"10:19","startHours":8.58389241421446,"endHours":10.311531034450311,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:21","end":"08:49","startHours":8.353540598183013,"endHours":8.814244230245906,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:42","end":"06:04","startHours":5.704494713821372,"endHours":6.073057619471688,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:35","end":"12:30","startHours":11.578466022623273,"endHours":12.49987328674906,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:17","end":"04:12","startHours":3.285800645491178,"endHours":4.207207909616966,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:59","end":"05:08","startHours":3.9768560935855195,"endHours":5.128615173742754,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:21","end":"15:16","startHours":14.342687815000634,"endHours":15.264095079126422,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:45","end":"19:09","startHours":18.749724135629577,"endHours":19.149724135629576,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:57","end":"19:32","startHours":18.949724135629577,"endHours":19.525603675708194,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:42","end":"20:27","startHours":18.699724135629577,"endHours":20.449724135629577,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:35","end":"00:30","startHours":23.57846602262327,"endHours":24.49987328674906,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:08","end":"06:51","startHours":5.128615173742754,"endHours":6.856253793978607,"quality":"auspicious"},{"name":"Roga","start":"06:51","end":"08:35","startHours":6.856253793978607,"endHours":8.58389241421446,"quality":"inauspicious"},{"name":"Udveg","start":"08:35","end":"10:19","startHours":8.58389241421446,"endHours":10.311531034450311,"quality":"inauspicious"},{"name":"Chala","start":"10:19","end":"12:02","startHours":10.311531034450311,"endHours":12.039169654686166,"quality":"neutral"},{"name":"Labha","start":"12:02","end":"13:46","startHours":12.039169654686166,"endHours":13.766808274922017,"quality":"auspicious"},{"name":"Amṛta","start":"13:46","end":"15:30","startHours":13.766808274922017,"endHours":15.494446895157871,"quality":"auspicious"},{"name":"Kāla","start":"15:30","end":"17:13","startHours":15.494446895157871,"endHours":17.222085515393722,"quality":"inauspicious"},{"name":"Śubha","start":"17:13","end":"18:57","startHours":17.222085515393722,"endHours":18.949724135629577,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:57","end":"20:13","startHours":18.949724135629577,"endHours":20.222085515393722,"quality":"auspicious"},{"name":"Kāla","start":"20:13","end":"21:30","startHours":20.222085515393722,"endHours":21.49444689515787,"quality":"inauspicious"},{"name":"Śubha","start":"21:30","end":"22:46","startHours":21.49444689515787,"endHours":22.76680827492202,"quality":"auspicious"},{"name":"Roga","start":"22:46","end":"00:02","startHours":22.76680827492202,"endHours":24.039169654686166,"quality":"inauspicious"},{"name":"Udveg","start":"00:02","end":"01:19","startHours":24.039169654686166,"endHours":25.31153103445031,"quality":"inauspicious"},{"name":"Chala","start":"01:19","end":"02:35","startHours":25.31153103445031,"endHours":26.58389241421446,"quality":"neutral"},{"name":"Labha","start":"02:35","end":"03:51","startHours":26.58389241421446,"endHours":27.85625379397861,"quality":"auspicious"},{"name":"Amṛta","start":"03:51","end":"05:08","startHours":27.85625379397861,"endHours":29.128615173742755,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:08","end":"06:08","startHours":5.128615173742754,"endHours":6.128615173742754,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:08","end":"07:08","startHours":6.128615173742754,"endHours":7.128615173742754,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:08","end":"08:08","startHours":7.128615173742754,"endHours":8.128615173742755,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:08","end":"09:08","startHours":8.128615173742755,"endHours":9.128615173742755,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:08","end":"10:08","startHours":9.128615173742755,"endHours":10.128615173742755,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:08","end":"11:08","startHours":10.128615173742755,"endHours":11.128615173742755,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:08","end":"12:08","startHours":11.128615173742755,"endHours":12.128615173742755,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:08","end":"13:08","startHours":12.128615173742755,"endHours":13.128615173742755,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:08","end":"14:08","startHours":13.128615173742755,"endHours":14.128615173742755,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:08","end":"15:08","startHours":14.128615173742755,"endHours":15.128615173742755,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:08","end":"16:08","startHours":15.128615173742755,"endHours":16.128615173742755,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:08","end":"17:08","startHours":16.128615173742755,"endHours":17.128615173742755,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:08","end":"18:08","startHours":17.128615173742755,"endHours":18.128615173742755,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:08","end":"19:08","startHours":18.128615173742755,"endHours":19.128615173742755,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:08","end":"20:08","startHours":19.128615173742755,"endHours":20.128615173742755,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:08","end":"21:08","startHours":20.128615173742755,"endHours":21.128615173742755,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:08","end":"22:08","startHours":21.128615173742755,"endHours":22.128615173742755,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:08","end":"23:08","startHours":22.128615173742755,"endHours":23.128615173742755,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:08","end":"00:08","startHours":23.128615173742755,"endHours":24.128615173742755,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:08","end":"01:08","startHours":24.128615173742755,"endHours":25.128615173742755,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:08","end":"02:08","startHours":25.128615173742755,"endHours":26.128615173742755,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:08","end":"03:08","startHours":26.128615173742755,"endHours":27.128615173742755,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:08","end":"04:08","startHours":27.128615173742755,"endHours":28.128615173742755,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:08","end":"05:08","startHours":28.128615173742755,"endHours":29.128615173742755,"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Mṛtyu","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-19.26525157977749,"eotMinutes":14.207820718830007,"ayanamsa":26.282}},"calendars":{"vikram_samvat":2230,"vikram_samvatsara":"Vyaya","saka_samvat":2095,"saka_samvatsara":"Śrīmukha","bengali_samvat":1580,"malayalam_era":1349,"nanakshahi_year":704,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Kārtika","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Śukla Caturdaśī · Vikram 2230 Vyaya · Śaka 2095 Śrīmukha"},"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":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 November 18, 2173 CE · Perth, Australia · Vidhyamitra","description":"November 18, 2173 CE for Perth, Australia: Śukla Caturdaśī, sūryodaya 05:08, sūryāsta 18:57.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2173-11-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2173-11-18","sa":"https://sa.vidhyamitra.com/city/perth/2173-11-18","hi":"https://hi.vidhyamitra.com/city/perth/2173-11-18","x-default":"https://vidhyamitra.com/city/perth/2173-11-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T21:00:19.311Z","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":"2026-06-01T21:00:19.311Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T21:00:19.311Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}