{"id":"vidhyamitra:city-day:perth:1985-10-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1985-10-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1985-10-28","date_display":"October 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":10,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446366.770833,"kali_year":5087,"ahargana":1857901.2708,"sun":{"sidereal_longitude":190.2469,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":3.3,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":173.0531,"elapsed_within_tithi_degrees":5.0531},"nakshatra":{"number":1,"name":"Aśvinī","pada":1,"moon_longitude":3.3,"elapsed_within_degrees":3.3},"yoga":{"number":15,"name":"Vajra","sum_longitude":193.5469},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"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":1985,"month":10,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446366.770833,"ahargana":1857901.2708,"kali_year":5087,"ayanamsa_lahiri":23.655,"grahas":{"sun":{"sidereal_longitude":190.91175699999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":3.4177569999999946,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false,"latitude":-1.2505},"mars":{"sidereal_longitude":156.771657,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":211.79595700000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":285.303357,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"venus":{"sidereal_longitude":170.865457,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":213.64005700000007,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":19.4498,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":199.4498,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","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":1985,"month":10,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446366.770833,"kali_year":5087,"ahargana":1857901.2708,"sun":{"sidereal_longitude":190.2469,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":3.3,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":173.0531,"elapsed_within_tithi_degrees":5.0531},"nakshatra":{"number":1,"name":"Aśvinī","pada":1,"moon_longitude":3.3,"elapsed_within_degrees":3.3},"yoga":{"number":15,"name":"Vajra","sum_longitude":193.5469},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.25,"elongation":173.053},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.25,"opposition_distance":6.947}},"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":"05:23","sunsetLocal":"18:37","solarNoonLocal":"12:00","dayLengthHours":13.243459372672056,"dayLengthDisplay":"13 Hours 14 Mins 36 Secs","nightLengthDisplay":"10 Hours 45 Mins 24 Secs","moonriseLocal":"17:54","moonsetLocal":"05:07","rahuKala":{"name":"Rāhu Kāla","start":"07:02","end":"08:42","startHours":7.0362761395897895,"endHours":8.691708561173797,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:21","end":"12:00","startHours":10.347140982757804,"endHours":12.00257340434181,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:39","end":"15:19","startHours":13.658005825925816,"endHours":15.313438247509826,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:28","end":"08:55","startHours":8.470984238295928,"endHours":8.912432884051665,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:56","end":"06:17","startHours":5.9326545252004514,"endHours":6.28581344180504,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:34","end":"12:27","startHours":11.561124758586075,"endHours":12.444022050097544,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:37","end":"04:30","startHours":3.6150491349828417,"endHours":4.497946426494312,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:17","end":"05:23","startHours":4.277222103616444,"endHours":5.380843718005782,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:13","end":"15:06","startHours":14.209816633120486,"endHours":15.092713924631957,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:25","end":"18:49","startHours":18.42430309067784,"endHours":18.824303090677837,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:37","end":"19:11","startHours":18.624303090677838,"endHours":19.176113897872508,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:22","end":"20:07","startHours":18.374303090677838,"endHours":20.124303090677838,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:34","end":"00:27","startHours":23.561124758586075,"endHours":24.444022050097544,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:23","end":"07:02","startHours":5.380843718005782,"endHours":7.0362761395897895,"quality":"auspicious"},{"name":"Kāla","start":"07:02","end":"08:42","startHours":7.0362761395897895,"endHours":8.691708561173797,"quality":"inauspicious"},{"name":"Śubha","start":"08:42","end":"10:21","startHours":8.691708561173797,"endHours":10.347140982757804,"quality":"auspicious"},{"name":"Roga","start":"10:21","end":"12:00","startHours":10.347140982757804,"endHours":12.00257340434181,"quality":"inauspicious"},{"name":"Udveg","start":"12:00","end":"13:39","startHours":12.00257340434181,"endHours":13.658005825925816,"quality":"inauspicious"},{"name":"Chala","start":"13:39","end":"15:19","startHours":13.658005825925816,"endHours":15.313438247509826,"quality":"neutral"},{"name":"Labha","start":"15:19","end":"16:58","startHours":15.313438247509826,"endHours":16.968870669093832,"quality":"auspicious"},{"name":"Amṛta","start":"16:58","end":"18:37","startHours":16.968870669093832,"endHours":18.624303090677838,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:37","end":"19:58","startHours":18.624303090677838,"endHours":19.968870669093832,"quality":"neutral"},{"name":"Labha","start":"19:58","end":"21:19","startHours":19.968870669093832,"endHours":21.313438247509822,"quality":"auspicious"},{"name":"Amṛta","start":"21:19","end":"22:39","startHours":21.313438247509822,"endHours":22.658005825925816,"quality":"auspicious"},{"name":"Kāla","start":"22:39","end":"00:00","startHours":22.658005825925816,"endHours":24.00257340434181,"quality":"inauspicious"},{"name":"Śubha","start":"00:00","end":"01:21","startHours":24.00257340434181,"endHours":25.347140982757804,"quality":"auspicious"},{"name":"Roga","start":"01:21","end":"02:42","startHours":25.347140982757804,"endHours":26.691708561173797,"quality":"inauspicious"},{"name":"Udveg","start":"02:42","end":"04:02","startHours":26.691708561173797,"endHours":28.036276139589788,"quality":"inauspicious"},{"name":"Chala","start":"04:02","end":"05:23","startHours":28.036276139589788,"endHours":29.38084371800578,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:23","end":"06:23","startHours":5.380843718005782,"endHours":6.380843718005782,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:23","end":"07:23","startHours":6.380843718005782,"endHours":7.380843718005782,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:23","end":"08:23","startHours":7.380843718005782,"endHours":8.380843718005782,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:23","end":"09:23","startHours":8.380843718005782,"endHours":9.380843718005782,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:23","end":"10:23","startHours":9.380843718005782,"endHours":10.380843718005782,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:23","end":"11:23","startHours":10.380843718005782,"endHours":11.380843718005782,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:23","end":"12:23","startHours":11.380843718005782,"endHours":12.380843718005782,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:23","end":"13:23","startHours":12.380843718005782,"endHours":13.380843718005782,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:23","end":"14:23","startHours":13.380843718005782,"endHours":14.380843718005782,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:23","end":"15:23","startHours":14.380843718005782,"endHours":15.380843718005782,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:23","end":"16:23","startHours":15.380843718005782,"endHours":16.38084371800578,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:23","end":"17:23","startHours":16.38084371800578,"endHours":17.38084371800578,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:23","end":"18:23","startHours":17.38084371800578,"endHours":18.38084371800578,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:23","end":"19:23","startHours":18.38084371800578,"endHours":19.38084371800578,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:23","end":"20:23","startHours":19.38084371800578,"endHours":20.38084371800578,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:23","end":"21:23","startHours":20.38084371800578,"endHours":21.38084371800578,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:23","end":"22:23","startHours":21.38084371800578,"endHours":22.38084371800578,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:23","end":"23:23","startHours":22.38084371800578,"endHours":23.38084371800578,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:23","end":"00:23","startHours":23.38084371800578,"endHours":24.38084371800578,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:23","end":"01:23","startHours":24.38084371800578,"endHours":25.38084371800578,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:23","end":"02:23","startHours":25.38084371800578,"endHours":26.38084371800578,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:23","end":"03:23","startHours":26.38084371800578,"endHours":27.38084371800578,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:23","end":"04:23","startHours":27.38084371800578,"endHours":28.38084371800578,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:23","end":"05:23","startHours":28.38084371800578,"endHours":29.38084371800578,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-13.041685785799238,"eotMinutes":16.40359573949132,"ayanamsa":23.655}},"calendars":{"vikram_samvat":2042,"vikram_samvatsara":"Bahudhānya","saka_samvat":1907,"saka_samvatsara":"Krodhana","bengali_samvat":1392,"malayalam_era":1161,"nanakshahi_year":516,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Śukla Pakṣa","solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Śukla Pūrṇimā · Vikram 2042 Bahudhānya · Śaka 1907 Krodhana"},"festivals":[{"id":"kartik-purnima","name":"Kārtika Pūrṇimā / Tripurī Pūrṇimā","name_sanskrit":"कार्तिक पूर्णिमा","tradition":"Pan-Hindu","significance":"Day Mahābhārata war began (4 Oct 3138 BCE). Śiva destroyed Tripurāsura.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Kārtika"},"precedence":2,"historical_anchor":{"event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","date_julian":"-3137-10-04","location":"Kurukṣetra"}},{"id":"tula-sankranti","name":"Tulā Saṅkrānti","name_sanskrit":"तुला सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Libra.","vrata":false,"detection":{"sun_rashi":"Tulā"},"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":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","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 October 28, 1985 CE · Perth, Australia · Vidhyamitra","description":"October 28, 1985 CE for Perth, Australia: Śukla Pūrṇimā, sūryodaya 05:23, sūryāsta 18:37.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1985-10-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1985-10-28","sa":"https://sa.vidhyamitra.com/city/perth/1985-10-28","hi":"https://hi.vidhyamitra.com/city/perth/1985-10-28","x-default":"https://vidhyamitra.com/city/perth/1985-10-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-24T12:27:43.319Z","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":"2026-05-24T12:27:43.319Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-24T12:27:43.319Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}