{"id":"vidhyamitra:city-day:perth:1985-10-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1985-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1985-10-01","date_display":"October 1, 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":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446339.770833,"kali_year":5087,"ahargana":1857874.2708,"sun":{"sidereal_longitude":163.4478,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":8.6047,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":205.1569,"elapsed_within_tithi_degrees":1.1569},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":8.6047,"elapsed_within_degrees":8.6047},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":172.0524},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"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":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446339.770833,"ahargana":1857874.2708,"kali_year":5087,"ayanamsa_lahiri":23.6539,"grahas":{"sun":{"sidereal_longitude":164.15898800000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":6.520388000000025,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false,"latitude":-0.9558},"mars":{"sidereal_longitude":139.808488,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":170.62768800000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":284.323488,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"venus":{"sidereal_longitude":137.48938799999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":210.841188,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":20.8804,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":200.8804,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":1985,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446339.770833,"kali_year":5087,"ahargana":1857874.2708,"sun":{"sidereal_longitude":163.4478,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":8.6047,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":205.1569,"elapsed_within_tithi_degrees":1.1569},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":8.6047,"elapsed_within_degrees":8.6047},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":172.0524},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.956,"elongation":154.843},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.956,"opposition_distance":25.157}},"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":"05:54","sunsetLocal":"18:17","solarNoonLocal":"12:05","dayLengthHours":12.389231282222752,"dayLengthDisplay":"12 Hours 23 Mins 21 Secs","nightLengthDisplay":"11 Hours 36 Mins 39 Secs","moonriseLocal":"20:01","moonsetLocal":"07:08","rahuKala":{"name":"Rāhu Kāla","start":"15:11","end":"16:44","startHours":15.187145084112615,"endHours":16.735798994390457,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:00","end":"10:32","startHours":8.992529443001239,"endHours":10.54118335327908,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:05","end":"13:38","startHours":12.089837263556927,"endHours":13.638491173834769,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:47","end":"09:12","startHours":8.786042254964192,"endHours":9.199016631038283,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:25","end":"06:45","startHours":6.411439592538164,"endHours":6.741819093397438,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:30","startHours":11.676862887482836,"endHours":12.502811639631018,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:15","end":"05:04","startHours":4.243324118149182,"endHours":5.069272870297366,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:52","end":"05:54","startHours":4.86278568226032,"endHours":5.89522162244555,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:59","startHours":14.154709143927384,"endHours":14.980657896075568,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:05","end":"18:29","startHours":18.084452904668304,"endHours":18.484452904668302,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:17","end":"18:48","startHours":18.284452904668303,"endHours":18.800670874760918,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:02","end":"19:47","startHours":18.034452904668303,"endHours":19.784452904668303,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:30","startHours":23.676862887482834,"endHours":24.50281163963102,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:54","end":"07:27","startHours":5.89522162244555,"endHours":7.443875532723394,"quality":"inauspicious"},{"name":"Udveg","start":"07:27","end":"09:00","startHours":7.443875532723394,"endHours":8.992529443001239,"quality":"inauspicious"},{"name":"Chala","start":"09:00","end":"10:32","startHours":8.992529443001239,"endHours":10.54118335327908,"quality":"neutral"},{"name":"Labha","start":"10:32","end":"12:05","startHours":10.54118335327908,"endHours":12.089837263556927,"quality":"auspicious"},{"name":"Amṛta","start":"12:05","end":"13:38","startHours":12.089837263556927,"endHours":13.638491173834769,"quality":"auspicious"},{"name":"Kāla","start":"13:38","end":"15:11","startHours":13.638491173834769,"endHours":15.187145084112615,"quality":"inauspicious"},{"name":"Śubha","start":"15:11","end":"16:44","startHours":15.187145084112615,"endHours":16.735798994390457,"quality":"auspicious"},{"name":"Roga","start":"16:44","end":"18:17","startHours":16.735798994390457,"endHours":18.284452904668303,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:17","end":"19:44","startHours":18.284452904668303,"endHours":19.735798994390457,"quality":"inauspicious"},{"name":"Śubha","start":"19:44","end":"21:11","startHours":19.735798994390457,"endHours":21.187145084112615,"quality":"auspicious"},{"name":"Roga","start":"21:11","end":"22:38","startHours":21.187145084112615,"endHours":22.638491173834772,"quality":"inauspicious"},{"name":"Udveg","start":"22:38","end":"00:05","startHours":22.638491173834772,"endHours":24.089837263556927,"quality":"inauspicious"},{"name":"Chala","start":"00:05","end":"01:32","startHours":24.089837263556927,"endHours":25.54118335327908,"quality":"neutral"},{"name":"Labha","start":"01:32","end":"03:00","startHours":25.54118335327908,"endHours":26.99252944300124,"quality":"auspicious"},{"name":"Amṛta","start":"03:00","end":"04:27","startHours":26.99252944300124,"endHours":28.443875532723396,"quality":"auspicious"},{"name":"Kāla","start":"04:27","end":"05:54","startHours":28.443875532723396,"endHours":29.89522162244555,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:54","end":"06:54","startHours":5.89522162244555,"endHours":6.89522162244555,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:54","end":"07:54","startHours":6.89522162244555,"endHours":7.89522162244555,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:54","end":"08:54","startHours":7.89522162244555,"endHours":8.89522162244555,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:54","end":"09:54","startHours":8.89522162244555,"endHours":9.89522162244555,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:54","end":"10:54","startHours":9.89522162244555,"endHours":10.89522162244555,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:54","end":"11:54","startHours":10.89522162244555,"endHours":11.89522162244555,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:54","end":"12:54","startHours":11.89522162244555,"endHours":12.89522162244555,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:54","end":"13:54","startHours":12.89522162244555,"endHours":13.89522162244555,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:54","end":"14:54","startHours":13.89522162244555,"endHours":14.89522162244555,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:54","end":"15:54","startHours":14.89522162244555,"endHours":15.89522162244555,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:54","end":"16:54","startHours":15.89522162244555,"endHours":16.89522162244555,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:54","end":"17:54","startHours":16.89522162244555,"endHours":17.89522162244555,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:54","end":"18:54","startHours":17.89522162244555,"endHours":18.89522162244555,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:54","end":"19:54","startHours":18.89522162244555,"endHours":19.89522162244555,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:54","end":"20:54","startHours":19.89522162244555,"endHours":20.89522162244555,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:54","end":"21:54","startHours":20.89522162244555,"endHours":21.89522162244555,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:54","end":"22:54","startHours":21.89522162244555,"endHours":22.89522162244555,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:54","end":"23:54","startHours":22.89522162244555,"endHours":23.89522162244555,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:54","end":"00:54","startHours":23.89522162244555,"endHours":24.89522162244555,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:54","end":"01:54","startHours":24.89522162244555,"endHours":25.89522162244555,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:54","end":"02:54","startHours":25.89522162244555,"endHours":26.89522162244555,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:54","end":"03:54","startHours":26.89522162244555,"endHours":27.89522162244555,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:54","end":"04:54","startHours":27.89522162244555,"endHours":28.89522162244555,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:54","end":"05:54","startHours":28.89522162244555,"endHours":29.89522162244555,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-3.0993293287564683,"eotMinutes":11.167764186584405,"ayanamsa":23.6539}},"calendars":{"vikram_samvat":2042,"vikram_samvatsara":"Bahudhānya","saka_samvat":1907,"saka_samvatsara":"Krodhana","bengali_samvat":1392,"malayalam_era":1161,"nanakshahi_year":516,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Tṛtīyā · Vikram 2042 Bahudhānya · Śaka 1907 Krodhana"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"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":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 1, 1985 CE · Perth, Australia · Vidhyamitra","description":"October 1, 1985 CE for Perth, Australia: Kṛṣṇa Tṛtīyā, sūryodaya 05:54, sūryāsta 18:17.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1985-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1985-10-01","sa":"https://sa.vidhyamitra.com/city/perth/1985-10-01","hi":"https://hi.vidhyamitra.com/city/perth/1985-10-01","x-default":"https://vidhyamitra.com/city/perth/1985-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T07:19:11.840Z","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":"2026-05-18T07:19:11.840Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T07:19:11.840Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}