{"id":"vidhyamitra:city-day:perth:1820-07-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1820-07-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1820-07-19","date_display":"July 19, 1820 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":1820,"month":7,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2386000.770833,"kali_year":4922,"ahargana":1797535.2708,"sun":{"sidereal_longitude":94.8098,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":194.0389,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":99.2291,"elapsed_within_tithi_degrees":3.2291},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":194.0389,"elapsed_within_degrees":7.3722},"yoga":{"number":22,"name":"Sādhya","sum_longitude":288.8487},"karana":{"half_tithi_index":16,"name":"Bālava"},"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":1820,"month":7,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2386000.770833,"ahargana":1797535.2708,"kali_year":4922,"ayanamsa_lahiri":21.3462,"grahas":{"sun":{"sidereal_longitude":94.85198200000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"moon":{"sidereal_longitude":191.19188199999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false,"latitude":-2.6501},"mars":{"sidereal_longitude":149.10948199999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":124.07868199999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":333.944082,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":114.66898200000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":353.846282,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":337.931,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":157.931,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":1820,"month":7,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2386000.770833,"kali_year":4922,"ahargana":1797535.2708,"sun":{"sidereal_longitude":94.8098,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":194.0389,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":99.2291,"elapsed_within_tithi_degrees":3.2291},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":194.0389,"elapsed_within_degrees":7.3722},"yoga":{"number":22,"name":"Sādhya","sum_longitude":288.8487},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.65,"elongation":99.229},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.65,"opposition_distance":80.771}},"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":"07:13","sunsetLocal":"17:32","solarNoonLocal":"12:22","dayLengthHours":10.30609857131916,"dayLengthDisplay":"10 Hours 18 Mins 22 Secs","nightLengthDisplay":"13 Hours 41 Mins 38 Secs","moonriseLocal":"12:14","moonsetLocal":"01:22","rahuKala":{"name":"Rāhu Kāla","start":"12:22","end":"13:40","startHours":12.374792150394018,"endHours":13.663054471808914,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:31","end":"09:48","startHours":8.510005186149334,"endHours":9.79826750756423,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:05","end":"12:22","startHours":11.086529828979124,"endHours":12.374792150394018,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"09:58","startHours":9.626499198042243,"endHours":9.970035817086215,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:39","end":"07:56","startHours":7.651163638539405,"endHours":7.925992933774582,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:43","startHours":12.031255531350046,"endHours":12.71832876943799,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:51","end":"06:32","startHours":5.847596388558552,"endHours":6.534669626646496,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:22","end":"07:13","startHours":6.36290131712451,"endHours":7.2217428647344395,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:06","end":"14:47","startHours":14.09247524561388,"endHours":14.779548483701824,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:20","end":"17:44","startHours":17.3278414360536,"endHours":17.7278414360536,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:32","end":"17:57","startHours":17.5278414360536,"endHours":17.957262209858563,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:17","end":"19:02","startHours":17.2778414360536,"endHours":19.0278414360536,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:43","startHours":24.031255531350045,"endHours":24.718328769437992,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:13","end":"08:31","startHours":7.2217428647344395,"endHours":8.510005186149334,"quality":"auspicious"},{"name":"Amṛta","start":"08:31","end":"09:48","startHours":8.510005186149334,"endHours":9.79826750756423,"quality":"auspicious"},{"name":"Kāla","start":"09:48","end":"11:05","startHours":9.79826750756423,"endHours":11.086529828979124,"quality":"inauspicious"},{"name":"Śubha","start":"11:05","end":"12:22","startHours":11.086529828979124,"endHours":12.374792150394018,"quality":"auspicious"},{"name":"Roga","start":"12:22","end":"13:40","startHours":12.374792150394018,"endHours":13.663054471808914,"quality":"inauspicious"},{"name":"Udveg","start":"13:40","end":"14:57","startHours":13.663054471808914,"endHours":14.951316793223809,"quality":"inauspicious"},{"name":"Chala","start":"14:57","end":"16:14","startHours":14.951316793223809,"endHours":16.239579114638705,"quality":"neutral"},{"name":"Labha","start":"16:14","end":"17:32","startHours":16.239579114638705,"endHours":17.5278414360536,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:32","end":"19:14","startHours":17.5278414360536,"endHours":19.239579114638705,"quality":"inauspicious"},{"name":"Chala","start":"19:14","end":"20:57","startHours":19.239579114638705,"endHours":20.95131679322381,"quality":"neutral"},{"name":"Labha","start":"20:57","end":"22:40","startHours":20.95131679322381,"endHours":22.663054471808913,"quality":"auspicious"},{"name":"Amṛta","start":"22:40","end":"00:22","startHours":22.663054471808913,"endHours":24.37479215039402,"quality":"auspicious"},{"name":"Kāla","start":"00:22","end":"02:05","startHours":24.37479215039402,"endHours":26.086529828979124,"quality":"inauspicious"},{"name":"Śubha","start":"02:05","end":"03:48","startHours":26.086529828979124,"endHours":27.79826750756423,"quality":"auspicious"},{"name":"Roga","start":"03:48","end":"05:31","startHours":27.79826750756423,"endHours":29.510005186149336,"quality":"inauspicious"},{"name":"Udveg","start":"05:31","end":"07:13","startHours":29.510005186149336,"endHours":31.221742864734438,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:13","end":"08:13","startHours":7.2217428647344395,"endHours":8.22174286473444,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:13","end":"09:13","startHours":8.22174286473444,"endHours":9.22174286473444,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:13","end":"10:13","startHours":9.22174286473444,"endHours":10.22174286473444,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:13","end":"11:13","startHours":10.22174286473444,"endHours":11.22174286473444,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:13","end":"12:13","startHours":11.22174286473444,"endHours":12.22174286473444,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:13","end":"13:13","startHours":12.22174286473444,"endHours":13.22174286473444,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:13","end":"14:13","startHours":13.22174286473444,"endHours":14.22174286473444,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:13","end":"15:13","startHours":14.22174286473444,"endHours":15.22174286473444,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:13","end":"16:13","startHours":15.22174286473444,"endHours":16.221742864734438,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:13","end":"17:13","startHours":16.221742864734438,"endHours":17.221742864734438,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:13","end":"18:13","startHours":17.221742864734438,"endHours":18.221742864734438,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:13","end":"19:13","startHours":18.221742864734438,"endHours":19.221742864734438,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:13","end":"20:13","startHours":19.221742864734438,"endHours":20.221742864734438,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:13","end":"21:13","startHours":20.221742864734438,"endHours":21.221742864734438,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:13","end":"22:13","startHours":21.221742864734438,"endHours":22.221742864734438,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:13","end":"23:13","startHours":22.221742864734438,"endHours":23.221742864734438,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:13","end":"00:13","startHours":23.221742864734438,"endHours":24.221742864734438,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:13","end":"01:13","startHours":24.221742864734438,"endHours":25.221742864734438,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:13","end":"02:13","startHours":25.221742864734438,"endHours":26.221742864734438,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:13","end":"03:13","startHours":26.221742864734438,"endHours":27.221742864734438,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:13","end":"04:13","startHours":27.221742864734438,"endHours":28.221742864734438,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:13","end":"05:13","startHours":28.221742864734438,"endHours":29.221742864734438,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:13","end":"06:13","startHours":29.221742864734438,"endHours":30.221742864734438,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:13","end":"07:13","startHours":30.221742864734438,"endHours":31.221742864734438,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"North","rahuVasa":"South-West","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":20.90836285091507,"eotMinutes":-5.929529023641085,"ayanamsa":21.3462}},"calendars":{"vikram_samvat":1877,"vikram_samvatsara":"Vijaya","saka_samvat":1742,"saka_samvatsara":"Vikrama","bengali_samvat":1227,"malayalam_era":996,"nanakshahi_year":351,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Āṣāḍha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Karkaṭa (Āḍi)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Śukla Navamī · Vikram 1877 Vijaya · Śaka 1742 Vikrama"},"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":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 July 19, 1820 CE · Perth, Australia · Vidhyamitra","description":"July 19, 1820 CE for Perth, Australia: Śukla Navamī, sūryodaya 07:13, sūryāsta 17:32.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1820-07-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1820-07-19","sa":"https://sa.vidhyamitra.com/city/perth/1820-07-19","hi":"https://hi.vidhyamitra.com/city/perth/1820-07-19","x-default":"https://vidhyamitra.com/city/perth/1820-07-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-07T14:25:33.211Z","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":"2026-06-07T14:25:33.211Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-07T14:25:33.211Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}