{"id":"vidhyamitra:city-day:perth:2181-08-09:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2181-08-09","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2181-08-09","date_display":"August 9, 2181 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":2181,"month":8,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517874.770833,"kali_year":5283,"ahargana":1929409.2708,"sun":{"sidereal_longitude":109.6215,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":92.6719,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":343.0504,"elapsed_within_tithi_degrees":7.0504},"nakshatra":{"number":7,"name":"Punarvasu","pada":4,"moon_longitude":92.6719,"elapsed_within_degrees":12.6719},"yoga":{"number":16,"name":"Siddhi","sum_longitude":202.2934},"karana":{"half_tithi_index":57,"name":"Śakuni"},"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":2181,"month":8,"day":9,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517874.770833,"ahargana":1929409.2708,"kali_year":5283,"ayanamsa_lahiri":26.3899,"grahas":{"sun":{"sidereal_longitude":110.63002499999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":94.05172500000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false,"latitude":-4.4568},"mars":{"sidereal_longitude":141.882425,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":135.428425,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":120.898325,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":151.38352499999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":89.14382499999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":190.6119,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":10.6119,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":2181,"month":8,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517874.770833,"kali_year":5283,"ahargana":1929409.2708,"sun":{"sidereal_longitude":109.6215,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":92.6719,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":343.0504,"elapsed_within_tithi_degrees":7.0504},"nakshatra":{"number":7,"name":"Punarvasu","pada":4,"moon_longitude":92.6719,"elapsed_within_degrees":12.6719},"yoga":{"number":16,"name":"Siddhi","sum_longitude":202.2934},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.457,"elongation":16.95},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.457,"opposition_distance":163.05}},"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":"06:58","sunsetLocal":"17:45","solarNoonLocal":"12:22","dayLengthHours":10.78873908655944,"dayLengthDisplay":"10 Hours 47 Mins 19 Secs","nightLengthDisplay":"13 Hours 12 Mins 41 Secs","moonriseLocal":"06:05","moonsetLocal":"16:26","rahuKala":{"name":"Rāhu Kāla","start":"13:43","end":"15:04","startHours":13.711424450322133,"endHours":15.060016836142063,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:58","end":"08:19","startHours":6.968462521222483,"endHours":8.317054907042413,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:40","end":"11:01","startHours":9.665647292862342,"endHours":11.014239678682273,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:29","end":"09:51","startHours":9.485834974753018,"endHours":9.845459610971666,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:25","end":"07:42","startHours":7.417993316495792,"endHours":7.705693025470711,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:43","startHours":12.003207428283556,"endHours":12.722456700720851,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:32","end":"06:15","startHours":5.529963976347891,"endHours":6.249213248785186,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:04","end":"06:58","startHours":6.0694009306758625,"endHours":6.968462521222483,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:53","startHours":14.160955245595442,"endHours":14.880204518032738,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:33","end":"17:57","startHours":17.557201607781924,"endHours":17.957201607781922,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:45","end":"18:12","startHours":17.757201607781923,"endHours":18.206732403055234,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:30","end":"19:15","startHours":17.507201607781923,"endHours":19.257201607781923,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:43","startHours":24.003207428283556,"endHours":24.72245670072085,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:58","end":"08:19","startHours":6.968462521222483,"endHours":8.317054907042413,"quality":"auspicious"},{"name":"Roga","start":"08:19","end":"09:40","startHours":8.317054907042413,"endHours":9.665647292862342,"quality":"inauspicious"},{"name":"Udveg","start":"09:40","end":"11:01","startHours":9.665647292862342,"endHours":11.014239678682273,"quality":"inauspicious"},{"name":"Chala","start":"11:01","end":"12:22","startHours":11.014239678682273,"endHours":12.362832064502204,"quality":"neutral"},{"name":"Labha","start":"12:22","end":"13:43","startHours":12.362832064502204,"endHours":13.711424450322133,"quality":"auspicious"},{"name":"Amṛta","start":"13:43","end":"15:04","startHours":13.711424450322133,"endHours":15.060016836142063,"quality":"auspicious"},{"name":"Kāla","start":"15:04","end":"16:25","startHours":15.060016836142063,"endHours":16.408609221961992,"quality":"inauspicious"},{"name":"Śubha","start":"16:25","end":"17:45","startHours":16.408609221961992,"endHours":17.757201607781923,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:45","end":"19:25","startHours":17.757201607781923,"endHours":19.408609221961992,"quality":"auspicious"},{"name":"Kāla","start":"19:25","end":"21:04","startHours":19.408609221961992,"endHours":21.06001683614206,"quality":"inauspicious"},{"name":"Śubha","start":"21:04","end":"22:43","startHours":21.06001683614206,"endHours":22.711424450322134,"quality":"auspicious"},{"name":"Roga","start":"22:43","end":"00:22","startHours":22.711424450322134,"endHours":24.362832064502204,"quality":"inauspicious"},{"name":"Udveg","start":"00:22","end":"02:01","startHours":24.362832064502204,"endHours":26.014239678682273,"quality":"inauspicious"},{"name":"Chala","start":"02:01","end":"03:40","startHours":26.014239678682273,"endHours":27.665647292862342,"quality":"neutral"},{"name":"Labha","start":"03:40","end":"05:19","startHours":27.665647292862342,"endHours":29.31705490704241,"quality":"auspicious"},{"name":"Amṛta","start":"05:19","end":"06:58","startHours":29.31705490704241,"endHours":30.968462521222484,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:58","end":"07:58","startHours":6.968462521222483,"endHours":7.968462521222483,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:58","end":"08:58","startHours":7.968462521222483,"endHours":8.968462521222483,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:58","end":"09:58","startHours":8.968462521222483,"endHours":9.968462521222483,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:58","end":"10:58","startHours":9.968462521222483,"endHours":10.968462521222483,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:58","end":"11:58","startHours":10.968462521222483,"endHours":11.968462521222483,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:58","end":"12:58","startHours":11.968462521222483,"endHours":12.968462521222483,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:58","end":"13:58","startHours":12.968462521222483,"endHours":13.968462521222483,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:58","end":"14:58","startHours":13.968462521222483,"endHours":14.968462521222483,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:58","end":"15:58","startHours":14.968462521222483,"endHours":15.968462521222483,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:58","end":"16:58","startHours":15.968462521222483,"endHours":16.968462521222484,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:58","end":"17:58","startHours":16.968462521222484,"endHours":17.968462521222484,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:58","end":"18:58","startHours":17.968462521222484,"endHours":18.968462521222484,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:58","end":"19:58","startHours":18.968462521222484,"endHours":19.968462521222484,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:58","end":"20:58","startHours":19.968462521222484,"endHours":20.968462521222484,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:58","end":"21:58","startHours":20.968462521222484,"endHours":21.968462521222484,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:58","end":"22:58","startHours":21.968462521222484,"endHours":22.968462521222484,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:58","end":"23:58","startHours":22.968462521222484,"endHours":23.968462521222484,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:58","end":"00:58","startHours":23.968462521222484,"endHours":24.968462521222484,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:58","end":"01:58","startHours":24.968462521222484,"endHours":25.968462521222484,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:58","end":"02:58","startHours":25.968462521222484,"endHours":26.968462521222484,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:58","end":"03:58","startHours":26.968462521222484,"endHours":27.968462521222484,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:58","end":"04:58","startHours":27.968462521222484,"endHours":28.968462521222484,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:58","end":"05:58","startHours":28.968462521222484,"endHours":29.968462521222484,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:58","end":"06:58","startHours":29.968462521222484,"endHours":30.968462521222484,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":15.73281199125406,"eotMinutes":-5.211923870132258,"ayanamsa":26.3899}},"calendars":{"vikram_samvat":2238,"vikram_samvatsara":"Jaya","saka_samvat":2103,"saka_samvatsara":"Vṛṣa","bengali_samvat":1588,"malayalam_era":1357,"nanakshahi_year":712,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","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":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Kṛṣṇa Caturdaśī · Vikram 2238 Jaya · Śaka 2103 Vṛṣa"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","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 August 9, 2181 CE · Perth, Australia · Vidhyamitra","description":"August 9, 2181 CE for Perth, Australia: Kṛṣṇa Caturdaśī, sūryodaya 06:58, sūryāsta 17:45.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2181-08-09","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2181-08-09","sa":"https://sa.vidhyamitra.com/city/perth/2181-08-09","hi":"https://hi.vidhyamitra.com/city/perth/2181-08-09","x-default":"https://vidhyamitra.com/city/perth/2181-08-09"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T12:59:53.120Z","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":"2026-05-31T12:59:53.120Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T12:59:53.120Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}