{"id":"vidhyamitra:city-day:perth:2028-08-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2028-08-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2028-08-04","date_display":"August 4, 2028 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":2028,"month":8,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461987.770833,"kali_year":5130,"ahargana":1873522.2708,"sun":{"sidereal_longitude":107.3269,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":273.4269,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":166.1,"elapsed_within_tithi_degrees":10.1},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3,"moon_longitude":273.4269,"elapsed_within_degrees":6.7602},"yoga":{"number":2,"name":"Prīti","sum_longitude":20.7538},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2028,"month":8,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461987.770833,"ahargana":1873522.2708,"kali_year":5130,"ayanamsa_lahiri":24.2524,"grahas":{"sun":{"sidereal_longitude":107.95002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":273.39671999999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false,"latitude":0.1297},"mars":{"sidereal_longitude":74.84982000000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":117.61772000000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":151.75972000000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":61.97102000000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":16.728920000000016,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":271.7741,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":91.7741,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","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":2028,"month":8,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461987.770833,"kali_year":5130,"ahargana":1873522.2708,"sun":{"sidereal_longitude":107.3269,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":273.4269,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":166.1,"elapsed_within_tithi_degrees":10.1},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3,"moon_longitude":273.4269,"elapsed_within_degrees":6.7602},"yoga":{"number":2,"name":"Prīti","sum_longitude":20.7538},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.13,"elongation":166.1},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.13,"opposition_distance":13.9}},"eclipse_window_40days":[{"offset_days":-13,"type":"solar","occurs":true,"moon_latitude":-0.016,"elongation":2.314},{"offset_days":1,"type":"lunar","occurs":true,"moon_latitude":1.134,"opposition_distance":1.947}]},"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":"07:03","sunsetLocal":"17:42","solarNoonLocal":"12:22","dayLengthHours":10.661161769735036,"dayLengthDisplay":"10 Hours 39 Mins 40 Secs","nightLengthDisplay":"13 Hours 20 Mins 20 Secs","moonriseLocal":"16:27","moonsetLocal":"06:21","rahuKala":{"name":"Rāhu Kāla","start":"11:02","end":"12:22","startHours":11.03988586985042,"endHours":12.372531091067298,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:02","end":"16:22","startHours":15.037821533501058,"endHours":16.37046675471794,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:22","end":"09:42","startHours":8.37459542741666,"endHours":9.70724064863354,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:32","end":"09:53","startHours":9.529554619137956,"endHours":9.884926678129123,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:29","end":"07:46","startHours":7.48616527993874,"endHours":7.770462927131675,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:44","startHours":12.01715903207613,"endHours":12.727903150058467,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:37","end":"06:20","startHours":5.620461970235109,"endHours":6.331206088217445,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:09","end":"07:03","startHours":6.1535200587218615,"endHours":7.041950206199781,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:52","startHours":14.149391386023138,"endHours":14.860135504005473,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:30","end":"17:54","startHours":17.503111975934818,"endHours":17.903111975934817,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:42","end":"18:09","startHours":17.703111975934817,"endHours":18.147327049673777,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:27","end":"19:12","startHours":17.453111975934817,"endHours":19.203111975934817,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:44","startHours":24.01715903207613,"endHours":24.727903150058467,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:03","end":"08:22","startHours":7.041950206199781,"endHours":8.37459542741666,"quality":"neutral"},{"name":"Labha","start":"08:22","end":"09:42","startHours":8.37459542741666,"endHours":9.70724064863354,"quality":"auspicious"},{"name":"Amṛta","start":"09:42","end":"11:02","startHours":9.70724064863354,"endHours":11.03988586985042,"quality":"auspicious"},{"name":"Kāla","start":"11:02","end":"12:22","startHours":11.03988586985042,"endHours":12.372531091067298,"quality":"inauspicious"},{"name":"Śubha","start":"12:22","end":"13:42","startHours":12.372531091067298,"endHours":13.705176312284179,"quality":"auspicious"},{"name":"Roga","start":"13:42","end":"15:02","startHours":13.705176312284179,"endHours":15.037821533501058,"quality":"inauspicious"},{"name":"Udveg","start":"15:02","end":"16:22","startHours":15.037821533501058,"endHours":16.37046675471794,"quality":"inauspicious"},{"name":"Chala","start":"16:22","end":"17:42","startHours":16.37046675471794,"endHours":17.703111975934817,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:42","end":"19:22","startHours":17.703111975934817,"endHours":19.37046675471794,"quality":"inauspicious"},{"name":"Udveg","start":"19:22","end":"21:02","startHours":19.37046675471794,"endHours":21.03782153350106,"quality":"inauspicious"},{"name":"Chala","start":"21:02","end":"22:42","startHours":21.03782153350106,"endHours":22.70517631228418,"quality":"neutral"},{"name":"Labha","start":"22:42","end":"00:22","startHours":22.70517631228418,"endHours":24.372531091067298,"quality":"auspicious"},{"name":"Amṛta","start":"00:22","end":"02:02","startHours":24.372531091067298,"endHours":26.03988586985042,"quality":"auspicious"},{"name":"Kāla","start":"02:02","end":"03:42","startHours":26.03988586985042,"endHours":27.70724064863354,"quality":"inauspicious"},{"name":"Śubha","start":"03:42","end":"05:22","startHours":27.70724064863354,"endHours":29.374595427416658,"quality":"auspicious"},{"name":"Roga","start":"05:22","end":"07:03","startHours":29.374595427416658,"endHours":31.04195020619978,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:03","end":"08:03","startHours":7.041950206199781,"endHours":8.04195020619978,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:03","end":"09:03","startHours":8.04195020619978,"endHours":9.04195020619978,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:03","end":"10:03","startHours":9.04195020619978,"endHours":10.04195020619978,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:03","end":"11:03","startHours":10.04195020619978,"endHours":11.04195020619978,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:03","end":"12:03","startHours":11.04195020619978,"endHours":12.04195020619978,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:03","end":"13:03","startHours":12.04195020619978,"endHours":13.04195020619978,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:03","end":"14:03","startHours":13.04195020619978,"endHours":14.04195020619978,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:03","end":"15:03","startHours":14.04195020619978,"endHours":15.04195020619978,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:03","end":"16:03","startHours":15.04195020619978,"endHours":16.04195020619978,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:03","end":"17:03","startHours":16.04195020619978,"endHours":17.04195020619978,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:03","end":"18:03","startHours":17.04195020619978,"endHours":18.04195020619978,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:03","end":"19:03","startHours":18.04195020619978,"endHours":19.04195020619978,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:03","end":"20:03","startHours":19.04195020619978,"endHours":20.04195020619978,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:03","end":"21:03","startHours":20.04195020619978,"endHours":21.04195020619978,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:03","end":"22:03","startHours":21.04195020619978,"endHours":22.04195020619978,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:03","end":"23:03","startHours":22.04195020619978,"endHours":23.04195020619978,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:03","end":"00:03","startHours":23.04195020619978,"endHours":24.04195020619978,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:03","end":"01:03","startHours":24.04195020619978,"endHours":25.04195020619978,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:03","end":"02:03","startHours":25.04195020619978,"endHours":26.04195020619978,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:03","end":"03:03","startHours":26.04195020619978,"endHours":27.04195020619978,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:03","end":"04:03","startHours":27.04195020619978,"endHours":28.04195020619978,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:03","end":"05:03","startHours":28.04195020619978,"endHours":29.04195020619978,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:03","end":"06:03","startHours":29.04195020619978,"endHours":30.04195020619978,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:03","end":"07:03","startHours":30.04195020619978,"endHours":31.04195020619978,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"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":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Mānasa","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":17.135396901713236,"eotMinutes":-5.793865464037833,"ayanamsa":24.2524}},"calendars":{"vikram_samvat":2085,"vikram_samvatsara":"Durmati","saka_samvat":1950,"saka_samvatsara":"Kīlaka","bengali_samvat":1435,"malayalam_era":1204,"nanakshahi_year":559,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Caturdaśī · Vikram 2085 Durmati · Śaka 1950 Kīlaka"},"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":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 4, 2028 CE · Perth, Australia · Vidhyamitra","description":"August 4, 2028 CE for Perth, Australia: Śukla Caturdaśī, sūryodaya 07:03, sūryāsta 17:42.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2028-08-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2028-08-04","sa":"https://sa.vidhyamitra.com/city/perth/2028-08-04","hi":"https://hi.vidhyamitra.com/city/perth/2028-08-04","x-default":"https://vidhyamitra.com/city/perth/2028-08-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T21:08:54.530Z","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":"2026-05-14T21:08:54.530Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T21:08:54.530Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}