{"id":"vidhyamitra:city-day:perth:2027-08-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2027-08-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2027-08-16","date_display":"August 16, 2027 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":2027,"month":8,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461633.770833,"kali_year":5129,"ahargana":1873168.2708,"sun":{"sidereal_longitude":118.0634,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":284.1144,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":166.051,"elapsed_within_tithi_degrees":10.051},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":284.1144,"elapsed_within_degrees":4.1144},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":42.1778},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"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":2027,"month":8,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461633.770833,"ahargana":1873168.2708,"kali_year":5129,"ayanamsa_lahiri":24.2389,"grahas":{"sun":{"sidereal_longitude":118.74474499999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":284.8412450000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false,"latitude":-0.5024},"mars":{"sidereal_longitude":174.51164500000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":123.128645,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":129.934345,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":119.499145,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":3.620945000000006,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":290.5307,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":110.5307,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":2027,"month":8,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461633.770833,"kali_year":5129,"ahargana":1873168.2708,"sun":{"sidereal_longitude":118.0634,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":284.1144,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":166.051,"elapsed_within_tithi_degrees":10.051},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":284.1144,"elapsed_within_degrees":4.1144},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":42.1778},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.502,"elongation":166.051},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.502,"opposition_distance":13.949}},"eclipse_window_40days":[{"offset_days":1,"type":"lunar","occurs":true,"moon_latitude":0.487,"opposition_distance":2.324}]},"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":"06:52","sunsetLocal":"17:49","solarNoonLocal":"12:21","dayLengthHours":10.956524275155603,"dayLengthDisplay":"10 Hours 57 Mins 23 Secs","nightLengthDisplay":"13 Hours 02 Mins 37 Secs","moonriseLocal":"16:35","moonsetLocal":"06:15","rahuKala":{"name":"Rāhu Kāla","start":"08:14","end":"09:36","startHours":8.23343432343552,"endHours":9.60299985782997,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:58","end":"12:21","startHours":10.972565392224421,"endHours":12.342130926618871,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:43","end":"15:05","startHours":13.711696461013322,"endHours":15.081261995407772,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:25","end":"09:47","startHours":9.42039111991071,"endHours":9.78560859574923,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:19","end":"07:37","startHours":7.320390633839219,"endHours":7.612564614510035,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:59","end":"12:42","startHours":11.976913450780351,"endHours":12.707348402457392,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:24","end":"06:08","startHours":5.402998885686989,"endHours":6.133433837364029,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:57","end":"06:52","startHours":5.950825099444769,"endHours":6.863868789041069,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:54","startHours":14.168218305811472,"endHours":14.898653257488512,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:37","end":"18:01","startHours":17.620393064196673,"endHours":18.02039306419667,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:49","end":"18:17","startHours":17.820393064196672,"endHours":18.276914908994822,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:34","end":"19:19","startHours":17.570393064196672,"endHours":19.320393064196672,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:59","end":"00:42","startHours":23.97691345078035,"endHours":24.70734840245739,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:52","end":"08:14","startHours":6.863868789041069,"endHours":8.23343432343552,"quality":"auspicious"},{"name":"Kāla","start":"08:14","end":"09:36","startHours":8.23343432343552,"endHours":9.60299985782997,"quality":"inauspicious"},{"name":"Śubha","start":"09:36","end":"10:58","startHours":9.60299985782997,"endHours":10.972565392224421,"quality":"auspicious"},{"name":"Roga","start":"10:58","end":"12:21","startHours":10.972565392224421,"endHours":12.342130926618871,"quality":"inauspicious"},{"name":"Udveg","start":"12:21","end":"13:43","startHours":12.342130926618871,"endHours":13.711696461013322,"quality":"inauspicious"},{"name":"Chala","start":"13:43","end":"15:05","startHours":13.711696461013322,"endHours":15.081261995407772,"quality":"neutral"},{"name":"Labha","start":"15:05","end":"16:27","startHours":15.081261995407772,"endHours":16.450827529802222,"quality":"auspicious"},{"name":"Amṛta","start":"16:27","end":"17:49","startHours":16.450827529802222,"endHours":17.820393064196672,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:49","end":"19:27","startHours":17.820393064196672,"endHours":19.450827529802222,"quality":"neutral"},{"name":"Labha","start":"19:27","end":"21:05","startHours":19.450827529802222,"endHours":21.081261995407772,"quality":"auspicious"},{"name":"Amṛta","start":"21:05","end":"22:43","startHours":21.081261995407772,"endHours":22.71169646101332,"quality":"auspicious"},{"name":"Kāla","start":"22:43","end":"00:21","startHours":22.71169646101332,"endHours":24.34213092661887,"quality":"inauspicious"},{"name":"Śubha","start":"00:21","end":"01:58","startHours":24.34213092661887,"endHours":25.972565392224418,"quality":"auspicious"},{"name":"Roga","start":"01:58","end":"03:36","startHours":25.972565392224418,"endHours":27.60299985782997,"quality":"inauspicious"},{"name":"Udveg","start":"03:36","end":"05:14","startHours":27.60299985782997,"endHours":29.233434323435517,"quality":"inauspicious"},{"name":"Chala","start":"05:14","end":"06:52","startHours":29.233434323435517,"endHours":30.86386878904107,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:52","end":"07:52","startHours":6.863868789041069,"endHours":7.863868789041069,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:52","end":"08:52","startHours":7.863868789041069,"endHours":8.863868789041069,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:52","end":"09:52","startHours":8.863868789041069,"endHours":9.863868789041069,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:52","end":"10:52","startHours":9.863868789041069,"endHours":10.863868789041069,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:52","end":"11:52","startHours":10.863868789041069,"endHours":11.863868789041069,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:52","end":"12:52","startHours":11.863868789041069,"endHours":12.863868789041069,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:52","end":"13:52","startHours":12.863868789041069,"endHours":13.863868789041069,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:52","end":"14:52","startHours":13.863868789041069,"endHours":14.863868789041069,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:52","end":"15:52","startHours":14.863868789041069,"endHours":15.863868789041069,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:52","end":"16:52","startHours":15.863868789041069,"endHours":16.86386878904107,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:52","end":"17:52","startHours":16.86386878904107,"endHours":17.86386878904107,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:52","end":"18:52","startHours":17.86386878904107,"endHours":18.86386878904107,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:52","end":"19:52","startHours":18.86386878904107,"endHours":19.86386878904107,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:52","end":"20:52","startHours":19.86386878904107,"endHours":20.86386878904107,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:52","end":"21:52","startHours":20.86386878904107,"endHours":21.86386878904107,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:52","end":"22:52","startHours":21.86386878904107,"endHours":22.86386878904107,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:52","end":"23:52","startHours":22.86386878904107,"endHours":23.86386878904107,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:52","end":"00:52","startHours":23.86386878904107,"endHours":24.86386878904107,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:52","end":"01:52","startHours":24.86386878904107,"endHours":25.86386878904107,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:52","end":"02:52","startHours":25.86386878904107,"endHours":26.86386878904107,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:52","end":"03:52","startHours":26.86386878904107,"endHours":27.86386878904107,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:52","end":"04:52","startHours":27.86386878904107,"endHours":28.86386878904107,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:52","end":"05:52","startHours":28.86386878904107,"endHours":29.86386878904107,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:52","end":"06:52","startHours":29.86386878904107,"endHours":30.86386878904107,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":13.85420107928213,"eotMinutes":-3.969855597132357,"ayanamsa":24.2389}},"calendars":{"vikram_samvat":2084,"vikram_samvatsara":"Raudra","saka_samvat":1949,"saka_samvatsara":"Plavaṅga","bengali_samvat":1434,"malayalam_era":1203,"nanakshahi_year":558,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Caturdaśī · Vikram 2084 Raudra · Śaka 1949 Plavaṅga"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2}],"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 August 16, 2027 CE · Perth, Australia · Vidhyamitra","description":"August 16, 2027 CE for Perth, Australia: Śukla Caturdaśī, sūryodaya 06:52, sūryāsta 17:49.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2027-08-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2027-08-16","sa":"https://sa.vidhyamitra.com/city/perth/2027-08-16","hi":"https://hi.vidhyamitra.com/city/perth/2027-08-16","x-default":"https://vidhyamitra.com/city/perth/2027-08-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T16:25:16.625Z","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":"2026-05-14T16:25:16.625Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T16:25:16.625Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}