{"id":"vidhyamitra:city-day:perth:2019-08-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2019-08-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2019-08-20","date_display":"August 20, 2019 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":2019,"month":8,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458715.770833,"kali_year":5121,"ahargana":1870250.2708,"sun":{"sidereal_longitude":121.9571,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":355.2904,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":233.3333,"elapsed_within_tithi_degrees":5.3333},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":355.2904,"elapsed_within_degrees":8.6237},"yoga":{"number":9,"name":"Śūla","sum_longitude":117.2475},"karana":{"half_tithi_index":38,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2019,"month":8,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458715.770833,"ahargana":1870250.2708,"kali_year":5121,"ayanamsa_lahiri":24.1273,"grahas":{"sun":{"sidereal_longitude":122.638734,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":351.978334,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false,"latitude":-4.5},"mars":{"sidereal_longitude":126.75823400000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":107.80763400000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":230.49453400000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":123.96693400000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":260.392334,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":85.1404,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":265.1404,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"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":2019,"month":8,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458715.770833,"kali_year":5121,"ahargana":1870250.2708,"sun":{"sidereal_longitude":121.9571,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":355.2904,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":233.3333,"elapsed_within_tithi_degrees":5.3333},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":355.2904,"elapsed_within_degrees":8.6237},"yoga":{"number":9,"name":"Śūla","sum_longitude":117.2475},"karana":{"half_tithi_index":38,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.5,"elongation":126.667},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.5,"opposition_distance":53.333}},"eclipse_window_40days":[{"offset_days":-19,"type":"solar","occurs":true,"moon_latitude":1.201,"elongation":2.188}]},"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":"06:48","sunsetLocal":"17:52","solarNoonLocal":"12:20","dayLengthHours":11.06764943805634,"dayLengthDisplay":"11 Hours 04 Mins 04 Secs","nightLengthDisplay":"12 Hours 55 Mins 56 Secs","moonriseLocal":"21:50","moonsetLocal":"09:24","rahuKala":{"name":"Rāhu Kāla","start":"15:06","end":"16:29","startHours":15.093712541356256,"endHours":16.4771687211133,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:34","end":"10:57","startHours":9.559887822328086,"endHours":10.943344002085128,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:20","end":"13:43","startHours":12.32680018184217,"endHours":13.710256361599214,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:23","end":"09:45","startHours":9.37542699836048,"endHours":9.744348646295691,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:15","end":"07:33","startHours":7.254127522733015,"endHours":7.549264841081183,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:42","startHours":11.957878533906959,"endHours":12.695721829777382,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:19","end":"06:03","startHours":5.317288871073155,"endHours":6.055132166943578,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:52","end":"06:48","startHours":5.870671342975973,"endHours":6.792975462814001,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:55","startHours":14.171408421518228,"endHours":14.909251717388651,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:40","end":"18:04","startHours":17.660624900870342,"endHours":18.06062490087034,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:52","end":"18:19","startHours":17.86062490087034,"endHours":18.321776960789357,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:37","end":"19:22","startHours":17.61062490087034,"endHours":19.36062490087034,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:42","startHours":23.95787853390696,"endHours":24.69572182977738,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:48","end":"08:11","startHours":6.792975462814001,"endHours":8.176431642571043,"quality":"inauspicious"},{"name":"Udveg","start":"08:11","end":"09:34","startHours":8.176431642571043,"endHours":9.559887822328086,"quality":"inauspicious"},{"name":"Chala","start":"09:34","end":"10:57","startHours":9.559887822328086,"endHours":10.943344002085128,"quality":"neutral"},{"name":"Labha","start":"10:57","end":"12:20","startHours":10.943344002085128,"endHours":12.32680018184217,"quality":"auspicious"},{"name":"Amṛta","start":"12:20","end":"13:43","startHours":12.32680018184217,"endHours":13.710256361599214,"quality":"auspicious"},{"name":"Kāla","start":"13:43","end":"15:06","startHours":13.710256361599214,"endHours":15.093712541356256,"quality":"inauspicious"},{"name":"Śubha","start":"15:06","end":"16:29","startHours":15.093712541356256,"endHours":16.4771687211133,"quality":"auspicious"},{"name":"Roga","start":"16:29","end":"17:52","startHours":16.4771687211133,"endHours":17.86062490087034,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:52","end":"19:29","startHours":17.86062490087034,"endHours":19.477168721113298,"quality":"inauspicious"},{"name":"Śubha","start":"19:29","end":"21:06","startHours":19.477168721113298,"endHours":21.093712541356258,"quality":"auspicious"},{"name":"Roga","start":"21:06","end":"22:43","startHours":21.093712541356258,"endHours":22.710256361599214,"quality":"inauspicious"},{"name":"Udveg","start":"22:43","end":"00:20","startHours":22.710256361599214,"endHours":24.32680018184217,"quality":"inauspicious"},{"name":"Chala","start":"00:20","end":"01:57","startHours":24.32680018184217,"endHours":25.943344002085126,"quality":"neutral"},{"name":"Labha","start":"01:57","end":"03:34","startHours":25.943344002085126,"endHours":27.559887822328086,"quality":"auspicious"},{"name":"Amṛta","start":"03:34","end":"05:11","startHours":27.559887822328086,"endHours":29.176431642571043,"quality":"auspicious"},{"name":"Kāla","start":"05:11","end":"06:48","startHours":29.176431642571043,"endHours":30.792975462814,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:48","end":"07:48","startHours":6.792975462814001,"endHours":7.792975462814001,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:48","end":"08:48","startHours":7.792975462814001,"endHours":8.792975462814,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:48","end":"09:48","startHours":8.792975462814,"endHours":9.792975462814,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:48","end":"10:48","startHours":9.792975462814,"endHours":10.792975462814,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:48","end":"11:48","startHours":10.792975462814,"endHours":11.792975462814,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:48","end":"12:48","startHours":11.792975462814,"endHours":12.792975462814,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:48","end":"13:48","startHours":12.792975462814,"endHours":13.792975462814,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:48","end":"14:48","startHours":13.792975462814,"endHours":14.792975462814,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:48","end":"15:48","startHours":14.792975462814,"endHours":15.792975462814,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:48","end":"16:48","startHours":15.792975462814,"endHours":16.792975462814,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:48","end":"17:48","startHours":16.792975462814,"endHours":17.792975462814,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:48","end":"18:48","startHours":17.792975462814,"endHours":18.792975462814,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:48","end":"19:48","startHours":18.792975462814,"endHours":19.792975462814,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:48","end":"20:48","startHours":19.792975462814,"endHours":20.792975462814,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:48","end":"21:48","startHours":20.792975462814,"endHours":21.792975462814,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:48","end":"22:48","startHours":21.792975462814,"endHours":22.792975462814,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:48","end":"23:48","startHours":22.792975462814,"endHours":23.792975462814,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:48","end":"00:48","startHours":23.792975462814,"endHours":24.792975462814,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:48","end":"01:48","startHours":24.792975462814,"endHours":25.792975462814,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:48","end":"02:48","startHours":25.792975462814,"endHours":26.792975462814,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:48","end":"03:48","startHours":26.792975462814,"endHours":27.792975462814,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:48","end":"04:48","startHours":27.792975462814,"endHours":28.792975462814,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:48","end":"05:48","startHours":28.792975462814,"endHours":29.792975462814,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:48","end":"06:48","startHours":29.792975462814,"endHours":30.792975462814,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":12.590470641449453,"eotMinutes":-3.0500109105302213,"ayanamsa":24.1273}},"calendars":{"vikram_samvat":2076,"vikram_samvatsara":"Paridhāvi","saka_samvat":1941,"saka_samvatsara":"Vikāri","bengali_samvat":1426,"malayalam_era":1195,"nanakshahi_year":550,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Pañcamī · Vikram 2076 Paridhāvi · Śaka 1941 Vikāri"},"festivals":[{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 20, 2019 CE · Perth, Australia · Vidhyamitra","description":"August 20, 2019 CE for Perth, Australia: Kṛṣṇa Pañcamī, sūryodaya 06:48, sūryāsta 17:52.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2019-08-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2019-08-20","sa":"https://sa.vidhyamitra.com/city/perth/2019-08-20","hi":"https://hi.vidhyamitra.com/city/perth/2019-08-20","x-default":"https://vidhyamitra.com/city/perth/2019-08-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T15:52:42.316Z","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":"2026-05-15T15:52:42.316Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T15:52:42.316Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}