{"id":"vidhyamitra:city-day:perth:2004-08-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2004-08-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2004-08-21","date_display":"August 21, 2004 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":2004,"month":8,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453238.770833,"kali_year":5106,"ahargana":1864773.2708,"sun":{"sidereal_longitude":123.7594,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":185.0234,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":61.264,"elapsed_within_tithi_degrees":1.264},"nakshatra":{"number":14,"name":"Citrā","pada":4,"moon_longitude":185.0234,"elapsed_within_degrees":11.6901},"yoga":{"number":24,"name":"Śukla","sum_longitude":308.7828},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2004,"month":8,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2453238.770833,"ahargana":1864773.2708,"kali_year":5106,"ayanamsa_lahiri":23.9178,"grahas":{"sun":{"sidereal_longitude":124.41359599999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":184.08919600000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false,"latitude":0.805},"mars":{"sidereal_longitude":132.771596,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":129.66339600000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":148.83639600000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":78.56489599999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":88.20169599999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":15.3382,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":195.3382,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"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":2004,"month":8,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453238.770833,"kali_year":5106,"ahargana":1864773.2708,"sun":{"sidereal_longitude":123.7594,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":185.0234,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":61.264,"elapsed_within_tithi_degrees":1.264},"nakshatra":{"number":14,"name":"Citrā","pada":4,"moon_longitude":185.0234,"elapsed_within_degrees":11.6901},"yoga":{"number":24,"name":"Śukla","sum_longitude":308.7828},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.805,"elongation":61.264},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.805,"opposition_distance":118.736}},"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":"06:46","sunsetLocal":"17:53","solarNoonLocal":"12:19","dayLengthHours":11.114557254730174,"dayLengthDisplay":"11 Hours 06 Mins 52 Secs","nightLengthDisplay":"12 Hours 53 Mins 08 Secs","moonriseLocal":"09:48","moonsetLocal":"22:48","rahuKala":{"name":"Rāhu Kāla","start":"09:33","end":"10:56","startHours":9.543958908250703,"endHours":10.933278565091975,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:43","end":"15:06","startHours":13.711917878774518,"endHours":15.101237535615791,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:46","end":"08:09","startHours":6.76531959456816,"endHours":8.154639251409431,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:22","end":"09:44","startHours":9.358716287338535,"endHours":9.729201529162873,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:14","end":"07:31","startHours":7.228426146848584,"endHours":7.524814340308055,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:42","startHours":11.95211298010891,"endHours":12.693083463757587,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:17","end":"06:01","startHours":5.283378627270803,"endHours":6.0243491109194816,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:50","end":"06:46","startHours":5.839106490007312,"endHours":6.76531959456816,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"14:55","startHours":14.175024431054943,"endHours":14.91599491470362,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:41","end":"18:05","startHours":17.679876849298335,"endHours":18.079876849298333,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:53","end":"18:21","startHours":17.879876849298334,"endHours":18.34298340157876,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:38","end":"19:23","startHours":17.629876849298334,"endHours":19.379876849298334,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:42","startHours":23.952112980108907,"endHours":24.69308346375759,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:46","end":"08:09","startHours":6.76531959456816,"endHours":8.154639251409431,"quality":"inauspicious"},{"name":"Śubha","start":"08:09","end":"09:33","startHours":8.154639251409431,"endHours":9.543958908250703,"quality":"auspicious"},{"name":"Roga","start":"09:33","end":"10:56","startHours":9.543958908250703,"endHours":10.933278565091975,"quality":"inauspicious"},{"name":"Udveg","start":"10:56","end":"12:19","startHours":10.933278565091975,"endHours":12.322598221933248,"quality":"inauspicious"},{"name":"Chala","start":"12:19","end":"13:43","startHours":12.322598221933248,"endHours":13.711917878774518,"quality":"neutral"},{"name":"Labha","start":"13:43","end":"15:06","startHours":13.711917878774518,"endHours":15.101237535615791,"quality":"auspicious"},{"name":"Amṛta","start":"15:06","end":"16:29","startHours":15.101237535615791,"endHours":16.49055719245706,"quality":"auspicious"},{"name":"Kāla","start":"16:29","end":"17:53","startHours":16.49055719245706,"endHours":17.879876849298334,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:53","end":"19:29","startHours":17.879876849298334,"endHours":19.49055719245706,"quality":"auspicious"},{"name":"Amṛta","start":"19:29","end":"21:06","startHours":19.49055719245706,"endHours":21.10123753561579,"quality":"auspicious"},{"name":"Kāla","start":"21:06","end":"22:43","startHours":21.10123753561579,"endHours":22.711917878774518,"quality":"inauspicious"},{"name":"Śubha","start":"22:43","end":"00:19","startHours":22.711917878774518,"endHours":24.322598221933248,"quality":"auspicious"},{"name":"Roga","start":"00:19","end":"01:56","startHours":24.322598221933248,"endHours":25.933278565091975,"quality":"inauspicious"},{"name":"Udveg","start":"01:56","end":"03:33","startHours":25.933278565091975,"endHours":27.5439589082507,"quality":"inauspicious"},{"name":"Chala","start":"03:33","end":"05:09","startHours":27.5439589082507,"endHours":29.15463925140943,"quality":"neutral"},{"name":"Labha","start":"05:09","end":"06:46","startHours":29.15463925140943,"endHours":30.76531959456816,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:46","end":"07:46","startHours":6.76531959456816,"endHours":7.76531959456816,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:46","end":"08:46","startHours":7.76531959456816,"endHours":8.76531959456816,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:46","end":"09:46","startHours":8.76531959456816,"endHours":9.76531959456816,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:46","end":"10:46","startHours":9.76531959456816,"endHours":10.76531959456816,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:46","end":"11:46","startHours":10.76531959456816,"endHours":11.76531959456816,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:46","end":"12:46","startHours":11.76531959456816,"endHours":12.76531959456816,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:46","end":"13:46","startHours":12.76531959456816,"endHours":13.76531959456816,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:46","end":"14:46","startHours":13.76531959456816,"endHours":14.76531959456816,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:46","end":"15:46","startHours":14.76531959456816,"endHours":15.76531959456816,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:46","end":"16:46","startHours":15.76531959456816,"endHours":16.76531959456816,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:46","end":"17:46","startHours":16.76531959456816,"endHours":17.76531959456816,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:46","end":"18:46","startHours":17.76531959456816,"endHours":18.76531959456816,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:46","end":"19:46","startHours":18.76531959456816,"endHours":19.76531959456816,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:46","end":"20:46","startHours":19.76531959456816,"endHours":20.76531959456816,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:46","end":"21:46","startHours":20.76531959456816,"endHours":21.76531959456816,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:46","end":"22:46","startHours":21.76531959456816,"endHours":22.76531959456816,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:46","end":"23:46","startHours":22.76531959456816,"endHours":23.76531959456816,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:46","end":"00:46","startHours":23.76531959456816,"endHours":24.76531959456816,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:46","end":"01:46","startHours":24.76531959456816,"endHours":25.76531959456816,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:46","end":"02:46","startHours":25.76531959456816,"endHours":26.76531959456816,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:46","end":"03:46","startHours":26.76531959456816,"endHours":27.76531959456816,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:46","end":"04:46","startHours":27.76531959456816,"endHours":28.76531959456816,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:46","end":"05:46","startHours":28.76531959456816,"endHours":29.76531959456816,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:46","end":"06:46","startHours":29.76531959456816,"endHours":30.76531959456816,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"East (Pūrva)","chandraVasa":"North","rahuVasa":"East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":12.052722367024828,"eotMinutes":-2.7978933159948465,"ayanamsa":23.9178}},"calendars":{"vikram_samvat":2061,"vikram_samvatsara":"Hemalambī","saka_samvat":1926,"saka_samvatsara":"Tāraṇa","bengali_samvat":1411,"malayalam_era":1180,"nanakshahi_year":535,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Ṣaṣṭhī · Vikram 2061 Hemalambī · Śaka 1926 Tāraṇa"},"festivals":[{"id":"kalki-jayanti","name":"Kalki Jayantī","name_sanskrit":"कल्कि जयन्ती","tradition":"Vaishnava","associated_deity":"Kalki (10th daśāvatāra of Krishna)","deity_avatara_index":22,"significance":"Future Kalki avatāra — to manifest at end of Kali Yuga; observed Śrāvaṇa Śukla 6.","vrata":false,"detection":{"tithi_number":6,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":4,"sources":["Bhāgavata 12.2.18-20","Kalki Purāṇa"]}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 21, 2004 CE · Perth, Australia · Vidhyamitra","description":"August 21, 2004 CE for Perth, Australia: Śukla Ṣaṣṭhī, sūryodaya 06:46, sūryāsta 17:53.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2004-08-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2004-08-21","sa":"https://sa.vidhyamitra.com/city/perth/2004-08-21","hi":"https://hi.vidhyamitra.com/city/perth/2004-08-21","x-default":"https://vidhyamitra.com/city/perth/2004-08-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T10:24:21.787Z","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":"2026-05-31T10:24:21.787Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T10:24:21.787Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}