{"id":"vidhyamitra:city-day:perth:1985-05-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1985-05-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1985-05-28","date_display":"May 28, 1985 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":1985,"month":5,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446213.770833,"kali_year":5087,"ahargana":1857748.2708,"sun":{"sidereal_longitude":42.9541,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":142.4185,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":99.4643,"elapsed_within_tithi_degrees":3.4643},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":142.4185,"elapsed_within_degrees":9.0851},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":185.3726},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1985,"month":5,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446213.770833,"ahargana":1857748.2708,"kali_year":5087,"ayanamsa_lahiri":23.6491,"grahas":{"sun":{"sidereal_longitude":43.02040199999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":139.543002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false,"latitude":4.0822},"mars":{"sidereal_longitude":58.27360199999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":30.74010199999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":294.104202,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":358.530402,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":209.93950199999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":27.5565,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":207.5565,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":1985,"month":5,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446213.770833,"kali_year":5087,"ahargana":1857748.2708,"sun":{"sidereal_longitude":42.9541,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":142.4185,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":99.4643,"elapsed_within_tithi_degrees":3.4643},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":142.4185,"elapsed_within_degrees":9.0851},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":185.3726},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.082,"elongation":99.464},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.082,"opposition_distance":80.536}},"eclipse_window_40days":[{"offset_days":-8,"type":"solar","occurs":true,"moon_latitude":0.744,"elongation":2.194}]},"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":"07:06","sunsetLocal":"17:21","solarNoonLocal":"12:14","dayLengthHours":10.256345891163477,"dayLengthDisplay":"10 Hours 15 Mins 23 Secs","nightLengthDisplay":"13 Hours 44 Mins 37 Secs","moonriseLocal":"12:54","moonsetLocal":"00:26","rahuKala":{"name":"Rāhu Kāla","start":"14:48","end":"16:04","startHours":14.791856247286756,"endHours":16.07389948368219,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:40","end":"10:57","startHours":9.663683301705017,"endHours":10.945726538100452,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:14","end":"13:31","startHours":12.227769774495886,"endHours":13.509813010891321,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:30","end":"09:50","startHours":9.49274420351896,"endHours":9.834622399891076,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:32","end":"07:48","startHours":7.526944574379294,"endHours":7.800447131476987,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:34","startHours":11.88589157812377,"endHours":12.569647970868003,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:44","end":"06:25","startHours":5.732084043425685,"endHours":6.415840436169917,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:15","end":"07:06","startHours":6.244901337983859,"endHours":7.099596828914149,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:37","startHours":13.937160756356466,"endHours":14.620917149100698,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:09","end":"17:33","startHours":17.155942720077626,"endHours":17.555942720077624,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:21","end":"17:47","startHours":17.355942720077625,"endHours":17.78329046554277,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:06","end":"18:51","startHours":17.105942720077625,"endHours":18.855942720077625,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:34","startHours":23.885891578123772,"endHours":24.569647970868,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:06","end":"08:23","startHours":7.099596828914149,"endHours":8.381640065309583,"quality":"inauspicious"},{"name":"Udveg","start":"08:23","end":"09:40","startHours":8.381640065309583,"endHours":9.663683301705017,"quality":"inauspicious"},{"name":"Chala","start":"09:40","end":"10:57","startHours":9.663683301705017,"endHours":10.945726538100452,"quality":"neutral"},{"name":"Labha","start":"10:57","end":"12:14","startHours":10.945726538100452,"endHours":12.227769774495886,"quality":"auspicious"},{"name":"Amṛta","start":"12:14","end":"13:31","startHours":12.227769774495886,"endHours":13.509813010891321,"quality":"auspicious"},{"name":"Kāla","start":"13:31","end":"14:48","startHours":13.509813010891321,"endHours":14.791856247286756,"quality":"inauspicious"},{"name":"Śubha","start":"14:48","end":"16:04","startHours":14.791856247286756,"endHours":16.07389948368219,"quality":"auspicious"},{"name":"Roga","start":"16:04","end":"17:21","startHours":16.07389948368219,"endHours":17.355942720077625,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:21","end":"19:04","startHours":17.355942720077625,"endHours":19.07389948368219,"quality":"inauspicious"},{"name":"Śubha","start":"19:04","end":"20:48","startHours":19.07389948368219,"endHours":20.791856247286756,"quality":"auspicious"},{"name":"Roga","start":"20:48","end":"22:31","startHours":20.791856247286756,"endHours":22.50981301089132,"quality":"inauspicious"},{"name":"Udveg","start":"22:31","end":"00:14","startHours":22.50981301089132,"endHours":24.227769774495886,"quality":"inauspicious"},{"name":"Chala","start":"00:14","end":"01:57","startHours":24.227769774495886,"endHours":25.945726538100452,"quality":"neutral"},{"name":"Labha","start":"01:57","end":"03:40","startHours":25.945726538100452,"endHours":27.663683301705017,"quality":"auspicious"},{"name":"Amṛta","start":"03:40","end":"05:23","startHours":27.663683301705017,"endHours":29.381640065309583,"quality":"auspicious"},{"name":"Kāla","start":"05:23","end":"07:06","startHours":29.381640065309583,"endHours":31.099596828914148,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:06","end":"08:06","startHours":7.099596828914149,"endHours":8.099596828914148,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:06","end":"09:06","startHours":8.099596828914148,"endHours":9.099596828914148,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:06","end":"10:06","startHours":9.099596828914148,"endHours":10.099596828914148,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:06","end":"11:06","startHours":10.099596828914148,"endHours":11.099596828914148,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:06","end":"12:06","startHours":11.099596828914148,"endHours":12.099596828914148,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:06","end":"13:06","startHours":12.099596828914148,"endHours":13.099596828914148,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:06","end":"14:06","startHours":13.099596828914148,"endHours":14.099596828914148,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:06","end":"15:06","startHours":14.099596828914148,"endHours":15.099596828914148,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:06","end":"16:06","startHours":15.099596828914148,"endHours":16.099596828914148,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:06","end":"17:06","startHours":16.099596828914148,"endHours":17.099596828914148,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:06","end":"18:06","startHours":17.099596828914148,"endHours":18.099596828914148,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:06","end":"19:06","startHours":18.099596828914148,"endHours":19.099596828914148,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:06","end":"20:06","startHours":19.099596828914148,"endHours":20.099596828914148,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:06","end":"21:06","startHours":20.099596828914148,"endHours":21.099596828914148,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:06","end":"22:06","startHours":21.099596828914148,"endHours":22.099596828914148,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:06","end":"23:06","startHours":22.099596828914148,"endHours":23.099596828914148,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:06","end":"00:06","startHours":23.099596828914148,"endHours":24.099596828914148,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:06","end":"01:06","startHours":24.099596828914148,"endHours":25.099596828914148,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:06","end":"02:06","startHours":25.099596828914148,"endHours":26.099596828914148,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:06","end":"03:06","startHours":26.099596828914148,"endHours":27.099596828914148,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:06","end":"04:06","startHours":27.099596828914148,"endHours":28.099596828914148,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:06","end":"05:06","startHours":28.099596828914148,"endHours":29.099596828914148,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:06","end":"06:06","startHours":29.099596828914148,"endHours":30.099596828914148,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:06","end":"07:06","startHours":30.099596828914148,"endHours":31.099596828914148,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"West","rahuVasa":"North","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"drikRitu":"Grīṣma (Summer) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":21.42063919296787,"eotMinutes":2.8918135302468597,"ayanamsa":23.6491}},"calendars":{"vikram_samvat":2042,"vikram_samvatsara":"Bahudhānya","saka_samvat":1907,"saka_samvatsara":"Krodhana","bengali_samvat":1392,"malayalam_era":1161,"nanakshahi_year":516,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Śukla Pakṣa","solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Śukla Navamī · Vikram 2042 Bahudhānya · Śaka 1907 Krodhana"},"festivals":[{"id":"vrishabha-sankranti","name":"Vṛṣabha Saṅkrānti","name_sanskrit":"वृषभ सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Taurus.","vrata":false,"detection":{"sun_rashi":"Vṛṣabha"},"precedence":5}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 Śukla Navamī","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 May 28, 1985 CE · Perth, Australia · Vidhyamitra","description":"May 28, 1985 CE for Perth, Australia: Śukla Navamī, sūryodaya 07:06, sūryāsta 17:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1985-05-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1985-05-28","sa":"https://sa.vidhyamitra.com/city/perth/1985-05-28","hi":"https://hi.vidhyamitra.com/city/perth/1985-05-28","x-default":"https://vidhyamitra.com/city/perth/1985-05-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-24T11:25:52.778Z","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":"2026-05-24T11:25:52.778Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-24T11:25:52.778Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}