{"id":"vidhyamitra:city-day:perth:1971-08-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1971-08-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1971-08-16","date_display":"August 16, 1971 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":1971,"month":8,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441179.770833,"kali_year":5073,"ahargana":1852714.2708,"sun":{"sidereal_longitude":118.5321,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":59.645,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":301.1129,"elapsed_within_tithi_degrees":1.1129},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":59.645,"elapsed_within_degrees":6.3117},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":178.1771},"karana":{"half_tithi_index":50,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1971,"month":8,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441179.770833,"ahargana":1852714.2708,"kali_year":5073,"ayanamsa_lahiri":23.4566,"grahas":{"sun":{"sidereal_longitude":119.080038,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":61.68053800000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false,"latitude":3.6685},"mars":{"sidereal_longitude":292.381938,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":137.14623800000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":214.63183800000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":116.26263799999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":42.415437999999995,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":294.282,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":114.282,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":1971,"month":8,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441179.770833,"kali_year":5073,"ahargana":1852714.2708,"sun":{"sidereal_longitude":118.5321,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":59.645,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":301.1129,"elapsed_within_tithi_degrees":1.1129},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":59.645,"elapsed_within_degrees":6.3117},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":178.1771},"karana":{"half_tithi_index":50,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.668,"elongation":58.887},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.668,"opposition_distance":121.113}},"eclipse_window_40days":[{"offset_days":-9,"type":"lunar","occurs":true,"moon_latitude":-0.252,"opposition_distance":1.604},{"offset_days":5,"type":"solar","occurs":true,"moon_latitude":-0.93,"elongation":2.643}]},"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":"06:52","sunsetLocal":"17:49","solarNoonLocal":"12:21","dayLengthHours":10.943615682594164,"dayLengthDisplay":"10 Hours 56 Mins 37 Secs","nightLengthDisplay":"13 Hours 03 Mins 23 Secs","moonriseLocal":"03:30","moonsetLocal":"13:32","rahuKala":{"name":"Rāhu Kāla","start":"08:14","end":"09:36","startHours":8.23827504564606,"endHours":9.60622700597033,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:58","end":"12:21","startHours":10.974178966294602,"endHours":12.342130926618871,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:43","end":"15:05","startHours":13.710082886943141,"endHours":15.078034847267412,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:25","end":"09:47","startHours":9.423833411260429,"endHours":9.788620600680233,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:20","end":"07:37","startHours":7.326307072096546,"endHours":7.6181368236323905,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:59","end":"12:42","startHours":11.977343737199066,"endHours":12.706918116038677,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:25","end":"06:08","startHours":5.411174327642568,"endHours":6.140748706482179,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:58","end":"06:52","startHours":5.958355111772276,"endHours":6.87032308532179,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:54","startHours":14.166066873717899,"endHours":14.89564125255751,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:37","end":"18:01","startHours":17.613938767915954,"endHours":18.013938767915953,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:49","end":"18:16","startHours":17.813938767915953,"endHours":18.26992275469071,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:34","end":"19:19","startHours":17.563938767915953,"endHours":19.313938767915953,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:59","end":"00:42","startHours":23.977343737199067,"endHours":24.706918116038675,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:52","end":"08:14","startHours":6.87032308532179,"endHours":8.23827504564606,"quality":"auspicious"},{"name":"Kāla","start":"08:14","end":"09:36","startHours":8.23827504564606,"endHours":9.60622700597033,"quality":"inauspicious"},{"name":"Śubha","start":"09:36","end":"10:58","startHours":9.60622700597033,"endHours":10.974178966294602,"quality":"auspicious"},{"name":"Roga","start":"10:58","end":"12:21","startHours":10.974178966294602,"endHours":12.342130926618871,"quality":"inauspicious"},{"name":"Udveg","start":"12:21","end":"13:43","startHours":12.342130926618871,"endHours":13.710082886943141,"quality":"inauspicious"},{"name":"Chala","start":"13:43","end":"15:05","startHours":13.710082886943141,"endHours":15.078034847267412,"quality":"neutral"},{"name":"Labha","start":"15:05","end":"16:27","startHours":15.078034847267412,"endHours":16.445986807591684,"quality":"auspicious"},{"name":"Amṛta","start":"16:27","end":"17:49","startHours":16.445986807591684,"endHours":17.813938767915953,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:49","end":"19:27","startHours":17.813938767915953,"endHours":19.445986807591684,"quality":"neutral"},{"name":"Labha","start":"19:27","end":"21:05","startHours":19.445986807591684,"endHours":21.07803484726741,"quality":"auspicious"},{"name":"Amṛta","start":"21:05","end":"22:43","startHours":21.07803484726741,"endHours":22.71008288694314,"quality":"auspicious"},{"name":"Kāla","start":"22:43","end":"00:21","startHours":22.71008288694314,"endHours":24.34213092661887,"quality":"inauspicious"},{"name":"Śubha","start":"00:21","end":"01:58","startHours":24.34213092661887,"endHours":25.974178966294602,"quality":"auspicious"},{"name":"Roga","start":"01:58","end":"03:36","startHours":25.974178966294602,"endHours":27.606227005970332,"quality":"inauspicious"},{"name":"Udveg","start":"03:36","end":"05:14","startHours":27.606227005970332,"endHours":29.23827504564606,"quality":"inauspicious"},{"name":"Chala","start":"05:14","end":"06:52","startHours":29.23827504564606,"endHours":30.87032308532179,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:52","end":"07:52","startHours":6.87032308532179,"endHours":7.87032308532179,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:52","end":"08:52","startHours":7.87032308532179,"endHours":8.87032308532179,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:52","end":"09:52","startHours":8.87032308532179,"endHours":9.87032308532179,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:52","end":"10:52","startHours":9.87032308532179,"endHours":10.87032308532179,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:52","end":"11:52","startHours":10.87032308532179,"endHours":11.87032308532179,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:52","end":"12:52","startHours":11.87032308532179,"endHours":12.87032308532179,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:52","end":"13:52","startHours":12.87032308532179,"endHours":13.87032308532179,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:52","end":"14:52","startHours":13.87032308532179,"endHours":14.87032308532179,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:52","end":"15:52","startHours":14.87032308532179,"endHours":15.87032308532179,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:52","end":"16:52","startHours":15.87032308532179,"endHours":16.87032308532179,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:52","end":"17:52","startHours":16.87032308532179,"endHours":17.87032308532179,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:52","end":"18:52","startHours":17.87032308532179,"endHours":18.87032308532179,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:52","end":"19:52","startHours":18.87032308532179,"endHours":19.87032308532179,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:52","end":"20:52","startHours":19.87032308532179,"endHours":20.87032308532179,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:52","end":"21:52","startHours":20.87032308532179,"endHours":21.87032308532179,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:52","end":"22:52","startHours":21.87032308532179,"endHours":22.87032308532179,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:52","end":"23:52","startHours":22.87032308532179,"endHours":23.87032308532179,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:52","end":"00:52","startHours":23.87032308532179,"endHours":24.87032308532179,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:52","end":"01:52","startHours":24.87032308532179,"endHours":25.87032308532179,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:52","end":"02:52","startHours":25.87032308532179,"endHours":26.87032308532179,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:52","end":"03:52","startHours":26.87032308532179,"endHours":27.87032308532179,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:52","end":"04:52","startHours":27.87032308532179,"endHours":28.87032308532179,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:52","end":"05:52","startHours":28.87032308532179,"endHours":29.87032308532179,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:52","end":"06:52","startHours":29.87032308532179,"endHours":30.87032308532179,"planetary_lord":"Venus"}],"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","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Vajra","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":14.000027256478065,"eotMinutes":-3.969855597132357,"ayanamsa":23.4566}},"calendars":{"vikram_samvat":2028,"vikram_samvatsara":"Raktākṣī","saka_samvat":1893,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1378,"malayalam_era":1147,"nanakshahi_year":502,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","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":"Bhādrapada Kṛṣṇa Ekādaśī · Vikram 2028 Raktākṣī · Śaka 1893 Virodhakṛt"},"festivals":[{"id":"indira-ekadashi","name":"Indirā Ekādaśī","name_sanskrit":"इन्दिरा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Falls in Pitṛ Pakṣa; liberates ancestors from naraka.","vrata":true,"detection":{"tithi_number":26,"tithi_paksha":"Kṛṣṇa","lunar_month":"Bhādrapada"},"precedence":3},{"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":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 16, 1971 CE · Perth, Australia · Vidhyamitra","description":"August 16, 1971 CE for Perth, Australia: Kṛṣṇa Ekādaśī, sūryodaya 06:52, sūryāsta 17:49.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1971-08-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1971-08-16","sa":"https://sa.vidhyamitra.com/city/perth/1971-08-16","hi":"https://hi.vidhyamitra.com/city/perth/1971-08-16","x-default":"https://vidhyamitra.com/city/perth/1971-08-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T00:29:04.462Z","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":"2026-06-01T00:29:04.462Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T00:29:04.462Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}