{"id":"vidhyamitra:city-day:perth:1979-08-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1979-08-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1979-08-04","date_display":"August 4, 1979 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":1979,"month":8,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444089.770833,"kali_year":5081,"ahargana":1855624.2708,"sun":{"sidereal_longitude":107.0215,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":233.402,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":126.3805,"elapsed_within_tithi_degrees":6.3805},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":233.402,"elapsed_within_degrees":6.7353},"yoga":{"number":26,"name":"Indra","sum_longitude":340.4234},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"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":1979,"month":8,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444089.770833,"ahargana":1855624.2708,"kali_year":5081,"ayanamsa_lahiri":23.5679,"grahas":{"sun":{"sidereal_longitude":107.52435500000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":231.58655499999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false,"latitude":4.4925},"mars":{"sidereal_longitude":63.67515500000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":102.26825500000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":114.17165499999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":101.93265500000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":138.921655,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":140.0962,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":320.0962,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"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":1979,"month":8,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444089.770833,"kali_year":5081,"ahargana":1855624.2708,"sun":{"sidereal_longitude":107.0215,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":233.402,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":126.3805,"elapsed_within_tithi_degrees":6.3805},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":233.402,"elapsed_within_degrees":6.7353},"yoga":{"number":26,"name":"Indra","sum_longitude":340.4234},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.492,"elongation":126.38},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.492,"opposition_distance":53.62}},"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":"07:03","sunsetLocal":"17:41","solarNoonLocal":"12:22","dayLengthHours":10.632918479309518,"dayLengthDisplay":"10 Hours 37 Mins 59 Secs","nightLengthDisplay":"13 Hours 22 Mins 01 Secs","moonriseLocal":"13:35","moonsetLocal":"03:42","rahuKala":{"name":"Rāhu Kāla","start":"09:43","end":"11:03","startHours":9.714301471239917,"endHours":11.043416281153608,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:42","end":"15:02","startHours":13.701645900980987,"endHours":15.030760710894677,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:03","end":"08:23","startHours":7.056071851412538,"endHours":8.385186661326228,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:32","end":"09:53","startHours":9.537086163251425,"endHours":9.891516779228409,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:30","end":"07:47","startHours":7.499110121383768,"endHours":7.782654614165355,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:44","startHours":12.018100475090314,"endHours":12.726961707044282,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:38","end":"06:21","startHours":5.6383493875046025,"endHours":6.34721061945857,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:10","end":"07:03","startHours":6.169995311470078,"endHours":7.056071851412538,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:51","startHours":14.144684170952218,"endHours":14.853545402906185,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:29","end":"17:53","startHours":17.488990330722057,"endHours":17.888990330722056,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:41","end":"18:08","startHours":17.688990330722056,"endHours":18.132028600693285,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:26","end":"19:11","startHours":17.438990330722056,"endHours":19.188990330722056,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:44","startHours":24.018100475090314,"endHours":24.726961707044282,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:03","end":"08:23","startHours":7.056071851412538,"endHours":8.385186661326228,"quality":"inauspicious"},{"name":"Śubha","start":"08:23","end":"09:43","startHours":8.385186661326228,"endHours":9.714301471239917,"quality":"auspicious"},{"name":"Roga","start":"09:43","end":"11:03","startHours":9.714301471239917,"endHours":11.043416281153608,"quality":"inauspicious"},{"name":"Udveg","start":"11:03","end":"12:22","startHours":11.043416281153608,"endHours":12.372531091067298,"quality":"inauspicious"},{"name":"Chala","start":"12:22","end":"13:42","startHours":12.372531091067298,"endHours":13.701645900980987,"quality":"neutral"},{"name":"Labha","start":"13:42","end":"15:02","startHours":13.701645900980987,"endHours":15.030760710894677,"quality":"auspicious"},{"name":"Amṛta","start":"15:02","end":"16:22","startHours":15.030760710894677,"endHours":16.359875520808366,"quality":"auspicious"},{"name":"Kāla","start":"16:22","end":"17:41","startHours":16.359875520808366,"endHours":17.688990330722056,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:41","end":"19:22","startHours":17.688990330722056,"endHours":19.359875520808366,"quality":"auspicious"},{"name":"Amṛta","start":"19:22","end":"21:02","startHours":19.359875520808366,"endHours":21.030760710894675,"quality":"auspicious"},{"name":"Kāla","start":"21:02","end":"22:42","startHours":21.030760710894675,"endHours":22.701645900980985,"quality":"inauspicious"},{"name":"Śubha","start":"22:42","end":"00:22","startHours":22.701645900980985,"endHours":24.372531091067298,"quality":"auspicious"},{"name":"Roga","start":"00:22","end":"02:03","startHours":24.372531091067298,"endHours":26.043416281153608,"quality":"inauspicious"},{"name":"Udveg","start":"02:03","end":"03:43","startHours":26.043416281153608,"endHours":27.714301471239917,"quality":"inauspicious"},{"name":"Chala","start":"03:43","end":"05:23","startHours":27.714301471239917,"endHours":29.38518666132623,"quality":"neutral"},{"name":"Labha","start":"05:23","end":"07:03","startHours":29.38518666132623,"endHours":31.05607185141254,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:03","end":"08:03","startHours":7.056071851412538,"endHours":8.056071851412538,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:03","end":"09:03","startHours":8.056071851412538,"endHours":9.056071851412538,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:03","end":"10:03","startHours":9.056071851412538,"endHours":10.056071851412538,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:03","end":"11:03","startHours":10.056071851412538,"endHours":11.056071851412538,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:03","end":"12:03","startHours":11.056071851412538,"endHours":12.056071851412538,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:03","end":"13:03","startHours":12.056071851412538,"endHours":13.056071851412538,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:03","end":"14:03","startHours":13.056071851412538,"endHours":14.056071851412538,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:03","end":"15:03","startHours":14.056071851412538,"endHours":15.056071851412538,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:03","end":"16:03","startHours":15.056071851412538,"endHours":16.05607185141254,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:03","end":"17:03","startHours":16.05607185141254,"endHours":17.05607185141254,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:03","end":"18:03","startHours":17.05607185141254,"endHours":18.05607185141254,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:03","end":"19:03","startHours":18.05607185141254,"endHours":19.05607185141254,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:03","end":"20:03","startHours":19.05607185141254,"endHours":20.05607185141254,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:03","end":"21:03","startHours":20.05607185141254,"endHours":21.05607185141254,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:03","end":"22:03","startHours":21.05607185141254,"endHours":22.05607185141254,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:03","end":"23:03","startHours":22.05607185141254,"endHours":23.05607185141254,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:03","end":"00:03","startHours":23.05607185141254,"endHours":24.05607185141254,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:03","end":"01:03","startHours":24.05607185141254,"endHours":25.05607185141254,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:03","end":"02:03","startHours":25.05607185141254,"endHours":26.05607185141254,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:03","end":"03:03","startHours":26.05607185141254,"endHours":27.05607185141254,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:03","end":"04:03","startHours":27.05607185141254,"endHours":28.05607185141254,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:03","end":"05:03","startHours":28.05607185141254,"endHours":29.05607185141254,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:03","end":"06:03","startHours":29.05607185141254,"endHours":30.05607185141254,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:03","end":"07:03","startHours":30.05607185141254,"endHours":31.05607185141254,"planetary_lord":"Mercury"}],"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":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":17.44270605511387,"eotMinutes":-5.793865464037833,"ayanamsa":23.5679}},"calendars":{"vikram_samvat":2036,"vikram_samvatsara":"Aṅgirasa","saka_samvat":1901,"saka_samvatsara":"Siddhārthī","bengali_samvat":1386,"malayalam_era":1155,"nanakshahi_year":510,"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":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Ekādaśī · Vikram 2036 Aṅgirasa · Śaka 1901 Siddhārthī"},"festivals":[{"id":"pavitropana-ekadashi","name":"Pavitropanā Ekādaśī (Putradā)","name_sanskrit":"पवित्रोपना एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Confers son; pavitra (sacred thread) ceremony for Viṣṇu.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","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 4, 1979 CE · Perth, Australia · Vidhyamitra","description":"August 4, 1979 CE for Perth, Australia: Śukla Ekādaśī, sūryodaya 07:03, sūryāsta 17:41.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1979-08-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1979-08-04","sa":"https://sa.vidhyamitra.com/city/perth/1979-08-04","hi":"https://hi.vidhyamitra.com/city/perth/1979-08-04","x-default":"https://vidhyamitra.com/city/perth/1979-08-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T19:37:06.156Z","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":"2026-05-31T19:37:06.156Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T19:37:06.156Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}