{"id":"vidhyamitra:city-day:perth:1990-10-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1990-10-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-10-08","date_display":"October 8, 1990 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1990,"month":10,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448172.770833,"kali_year":5092,"ahargana":1859707.2708,"sun":{"sidereal_longitude":170.0563,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":35.9485,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":225.8923,"elapsed_within_tithi_degrees":9.8923},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":35.9485,"elapsed_within_degrees":9.2818},"yoga":{"number":16,"name":"Siddhi","sum_longitude":206.0048},"karana":{"half_tithi_index":37,"name":"Bālava"},"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":1990,"month":10,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2448172.770833,"ahargana":1859707.2708,"kali_year":5092,"ayanamsa_lahiri":23.724,"grahas":{"sun":{"sidereal_longitude":170.77705400000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"moon":{"sidereal_longitude":39.423854000000006,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false,"latitude":4.1661},"mars":{"sidereal_longitude":49.797353999999984,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":true},"mercury":{"sidereal_longitude":160.41105400000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":105.61985400000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"venus":{"sidereal_longitude":164.57615399999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":264.986354,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":283.7593,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":103.7593,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1990,"month":10,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448172.770833,"kali_year":5092,"ahargana":1859707.2708,"sun":{"sidereal_longitude":170.0563,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":35.9485,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":225.8923,"elapsed_within_tithi_degrees":9.8923},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":35.9485,"elapsed_within_degrees":9.2818},"yoga":{"number":16,"name":"Siddhi","sum_longitude":206.0048},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.166,"elongation":134.108},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.166,"opposition_distance":45.892}},"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":"05:45","sunsetLocal":"18:22","solarNoonLocal":"12:03","dayLengthHours":12.609062758251959,"dayLengthDisplay":"12 Hours 36 Mins 33 Secs","nightLengthDisplay":"11 Hours 23 Mins 27 Secs","moonriseLocal":"22:10","moonsetLocal":"08:26","rahuKala":{"name":"Rāhu Kāla","start":"07:20","end":"08:54","startHours":7.327079545196122,"endHours":8.903212389977618,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:29","end":"12:03","startHours":10.479345234759112,"endHours":12.055478079540606,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:38","end":"15:12","startHours":13.631610924322102,"endHours":15.207743769103597,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:42","end":"09:07","startHours":8.69306134400675,"endHours":9.113363435948482,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:17","end":"06:37","startHours":6.2763243153417925,"endHours":6.612565988895178,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:29","startHours":11.635175987598874,"endHours":12.475780171482338,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:04","end":"04:55","startHours":4.0697383326477,"endHours":4.910342516531164,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:42","end":"05:45","startHours":4.700191470560298,"endHours":5.7509467004146275,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"15:00","startHours":14.156988539249266,"endHours":14.99759272313273,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:10","end":"18:34","startHours":18.160009458666586,"endHours":18.560009458666585,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:22","end":"18:53","startHours":18.360009458666585,"endHours":18.88538707359375,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:07","end":"19:52","startHours":18.110009458666585,"endHours":19.860009458666585,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:29","startHours":23.635175987598874,"endHours":24.475780171482338,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:45","end":"07:20","startHours":5.7509467004146275,"endHours":7.327079545196122,"quality":"auspicious"},{"name":"Kāla","start":"07:20","end":"08:54","startHours":7.327079545196122,"endHours":8.903212389977618,"quality":"inauspicious"},{"name":"Śubha","start":"08:54","end":"10:29","startHours":8.903212389977618,"endHours":10.479345234759112,"quality":"auspicious"},{"name":"Roga","start":"10:29","end":"12:03","startHours":10.479345234759112,"endHours":12.055478079540606,"quality":"inauspicious"},{"name":"Udveg","start":"12:03","end":"13:38","startHours":12.055478079540606,"endHours":13.631610924322102,"quality":"inauspicious"},{"name":"Chala","start":"13:38","end":"15:12","startHours":13.631610924322102,"endHours":15.207743769103597,"quality":"neutral"},{"name":"Labha","start":"15:12","end":"16:47","startHours":15.207743769103597,"endHours":16.78387661388509,"quality":"auspicious"},{"name":"Amṛta","start":"16:47","end":"18:22","startHours":16.78387661388509,"endHours":18.360009458666585,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:22","end":"19:47","startHours":18.360009458666585,"endHours":19.78387661388509,"quality":"neutral"},{"name":"Labha","start":"19:47","end":"21:12","startHours":19.78387661388509,"endHours":21.207743769103594,"quality":"auspicious"},{"name":"Amṛta","start":"21:12","end":"22:38","startHours":21.207743769103594,"endHours":22.6316109243221,"quality":"auspicious"},{"name":"Kāla","start":"22:38","end":"00:03","startHours":22.6316109243221,"endHours":24.055478079540606,"quality":"inauspicious"},{"name":"Śubha","start":"00:03","end":"01:29","startHours":24.055478079540606,"endHours":25.479345234759112,"quality":"auspicious"},{"name":"Roga","start":"01:29","end":"02:54","startHours":25.479345234759112,"endHours":26.903212389977618,"quality":"inauspicious"},{"name":"Udveg","start":"02:54","end":"04:20","startHours":26.903212389977618,"endHours":28.32707954519612,"quality":"inauspicious"},{"name":"Chala","start":"04:20","end":"05:45","startHours":28.32707954519612,"endHours":29.750946700414627,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:45","end":"06:45","startHours":5.7509467004146275,"endHours":6.7509467004146275,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:45","end":"07:45","startHours":6.7509467004146275,"endHours":7.7509467004146275,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:45","end":"08:45","startHours":7.7509467004146275,"endHours":8.750946700414627,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:45","end":"09:45","startHours":8.750946700414627,"endHours":9.750946700414627,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:45","end":"10:45","startHours":9.750946700414627,"endHours":10.750946700414627,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:45","end":"11:45","startHours":10.750946700414627,"endHours":11.750946700414627,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:45","end":"12:45","startHours":11.750946700414627,"endHours":12.750946700414627,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:45","end":"13:45","startHours":12.750946700414627,"endHours":13.750946700414627,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:45","end":"14:45","startHours":13.750946700414627,"endHours":14.750946700414627,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:45","end":"15:45","startHours":14.750946700414627,"endHours":15.750946700414627,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:45","end":"16:45","startHours":15.750946700414627,"endHours":16.750946700414627,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:45","end":"17:45","startHours":16.750946700414627,"endHours":17.750946700414627,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:45","end":"18:45","startHours":17.750946700414627,"endHours":18.750946700414627,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:45","end":"19:45","startHours":18.750946700414627,"endHours":19.750946700414627,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:45","end":"20:45","startHours":19.750946700414627,"endHours":20.750946700414627,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:45","end":"21:45","startHours":20.750946700414627,"endHours":21.750946700414627,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:45","end":"22:45","startHours":21.750946700414627,"endHours":22.750946700414627,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:45","end":"23:45","startHours":22.750946700414627,"endHours":23.750946700414627,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:45","end":"00:45","startHours":23.750946700414627,"endHours":24.750946700414627,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:45","end":"01:45","startHours":24.750946700414627,"endHours":25.750946700414627,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:45","end":"02:45","startHours":25.750946700414627,"endHours":26.750946700414627,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:45","end":"03:45","startHours":26.750946700414627,"endHours":27.750946700414627,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:45","end":"04:45","startHours":27.750946700414627,"endHours":28.750946700414627,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:45","end":"05:45","startHours":28.750946700414627,"endHours":29.750946700414627,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-5.715638440124073,"eotMinutes":13.229315227563635,"ayanamsa":23.724}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Caturthī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[{"id":"karva-chauth","name":"Karvā Chauth","name_sanskrit":"करवा चौथ","tradition":"Pan-Hindu","associated_deity":"Pārvatī + Gaṇeśa + Chandra","significance":"North Indian wives' fast for husband's longevity. Kṛṣṇa Caturthī of Kārtika.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa","lunar_month":"Kārtika"},"precedence":2},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7, 6.34-35.","step_count":5,"url":"/walk/chandra-walk","steps":[{"label":"BG 6.5","url":"/bhagavad-gita/6/5","purpose":"Lift the self by the Self; begin the walk with inner responsibility."},{"label":"BG 6.6","url":"/bhagavad-gita/6/6","purpose":"See the mind as friend when mastered and enemy when unmastered."},{"label":"BG 6.7","url":"/bhagavad-gita/6/7","purpose":"Stabilize the conquered mind in heat/cold, honor/dishonor, pleasure/pain."},{"label":"BG 6.34","url":"/bhagavad-gita/6/34","purpose":"Name the restless mind honestly before trying to discipline it."},{"label":"BG 6.35","url":"/bhagavad-gita/6/35","purpose":"Complete with abhyāsa and vairāgya: practice and detachment."}]},"reason":"Dedicated festival walk for Karvā Chauth · Saṅkaṣṭī Caturthī is not live yet; 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 October 8, 1990 CE · Perth, Australia · Vidhyamitra","description":"October 8, 1990 CE for Perth, Australia: Kṛṣṇa Caturthī, sūryodaya 05:45, sūryāsta 18:22.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1990-10-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1990-10-08","sa":"https://sa.vidhyamitra.com/city/perth/1990-10-08","hi":"https://hi.vidhyamitra.com/city/perth/1990-10-08","x-default":"https://vidhyamitra.com/city/perth/1990-10-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-04T03:42:21.461Z","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":"2026-09-04T03:42:21.461Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-04T03:42:21.461Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}