{"id":"vidhyamitra:city-day:perth:1983-10-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1983-10-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1983-10-06","date_display":"October 6, 1983 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":1983,"month":10,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445613.770833,"kali_year":5085,"ahargana":1857148.2708,"sun":{"sidereal_longitude":167.896,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":163.4926,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":355.5966,"elapsed_within_tithi_degrees":7.5966},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":163.4926,"elapsed_within_degrees":3.4926},"yoga":{"number":25,"name":"Brahma","sum_longitude":331.3886},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1983,"month":10,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2445613.770833,"ahargana":1857148.2708,"kali_year":5085,"ayanamsa_lahiri":23.6262,"grahas":{"sun":{"sidereal_longitude":168.60112700000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"moon":{"sidereal_longitude":162.62682700000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false,"latitude":4.3633},"mars":{"sidereal_longitude":130.372927,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":152.16152699999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":224.75222699999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":126.70642700000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":190.25982699999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":59.3474,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":239.3474,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","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":1983,"month":10,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445613.770833,"kali_year":5085,"ahargana":1857148.2708,"sun":{"sidereal_longitude":167.896,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":163.4926,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":355.5966,"elapsed_within_tithi_degrees":7.5966},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":163.4926,"elapsed_within_degrees":3.4926},"yoga":{"number":25,"name":"Brahma","sum_longitude":331.3886},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.363,"elongation":4.403},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.363,"opposition_distance":175.597}},"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":"05:48","sunsetLocal":"18:20","solarNoonLocal":"12:04","dayLengthHours":12.534567950801275,"dayLengthDisplay":"12 Hours 32 Mins 04 Secs","nightLengthDisplay":"11 Hours 27 Mins 56 Secs","moonriseLocal":"05:31","moonsetLocal":"17:49","rahuKala":{"name":"Rāhu Kāla","start":"13:38","end":"15:12","startHours":13.6314605738857,"endHours":15.198281567735862,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:48","end":"07:22","startHours":5.797355604634904,"endHours":7.364176598485064,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:56","end":"10:30","startHours":8.930997592335224,"endHours":10.497818586185382,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:43","end":"09:08","startHours":8.722088126488536,"endHours":9.139907058181912,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:19","end":"06:39","startHours":6.3196292692516245,"endHours":6.653884414606325,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:39","end":"12:29","startHours":11.646820648342167,"endHours":12.482458511728918,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:08","end":"04:58","startHours":4.126079877861401,"endHours":4.961717741248153,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:45","end":"05:48","startHours":4.752808275401465,"endHours":5.797355604634904,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:59","startHours":14.153734238502423,"endHours":14.989372101889176,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:08","end":"18:32","startHours":18.13192355543618,"endHours":18.53192355543618,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:20","end":"18:51","startHours":18.33192355543618,"endHours":18.8541972200529,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:05","end":"19:50","startHours":18.08192355543618,"endHours":19.83192355543618,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:39","end":"00:29","startHours":23.646820648342167,"endHours":24.482458511728918,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:48","end":"07:22","startHours":5.797355604634904,"endHours":7.364176598485064,"quality":"auspicious"},{"name":"Roga","start":"07:22","end":"08:56","startHours":7.364176598485064,"endHours":8.930997592335224,"quality":"inauspicious"},{"name":"Udveg","start":"08:56","end":"10:30","startHours":8.930997592335224,"endHours":10.497818586185382,"quality":"inauspicious"},{"name":"Chala","start":"10:30","end":"12:04","startHours":10.497818586185382,"endHours":12.064639580035543,"quality":"neutral"},{"name":"Labha","start":"12:04","end":"13:38","startHours":12.064639580035543,"endHours":13.6314605738857,"quality":"auspicious"},{"name":"Amṛta","start":"13:38","end":"15:12","startHours":13.6314605738857,"endHours":15.198281567735862,"quality":"auspicious"},{"name":"Kāla","start":"15:12","end":"16:46","startHours":15.198281567735862,"endHours":16.76510256158602,"quality":"inauspicious"},{"name":"Śubha","start":"16:46","end":"18:20","startHours":16.76510256158602,"endHours":18.33192355543618,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:20","end":"19:46","startHours":18.33192355543618,"endHours":19.76510256158602,"quality":"auspicious"},{"name":"Kāla","start":"19:46","end":"21:12","startHours":19.76510256158602,"endHours":21.19828156773586,"quality":"inauspicious"},{"name":"Śubha","start":"21:12","end":"22:38","startHours":21.19828156773586,"endHours":22.631460573885704,"quality":"auspicious"},{"name":"Roga","start":"22:38","end":"00:04","startHours":22.631460573885704,"endHours":24.064639580035543,"quality":"inauspicious"},{"name":"Udveg","start":"00:04","end":"01:30","startHours":24.064639580035543,"endHours":25.49781858618538,"quality":"inauspicious"},{"name":"Chala","start":"01:30","end":"02:56","startHours":25.49781858618538,"endHours":26.930997592335224,"quality":"neutral"},{"name":"Labha","start":"02:56","end":"04:22","startHours":26.930997592335224,"endHours":28.364176598485066,"quality":"auspicious"},{"name":"Amṛta","start":"04:22","end":"05:48","startHours":28.364176598485066,"endHours":29.797355604634905,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:48","end":"06:48","startHours":5.797355604634904,"endHours":6.797355604634904,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:48","end":"07:48","startHours":6.797355604634904,"endHours":7.797355604634904,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:48","end":"08:48","startHours":7.797355604634904,"endHours":8.797355604634905,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:48","end":"09:48","startHours":8.797355604634905,"endHours":9.797355604634905,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:48","end":"10:48","startHours":9.797355604634905,"endHours":10.797355604634905,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:48","end":"11:48","startHours":10.797355604634905,"endHours":11.797355604634905,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:48","end":"12:48","startHours":11.797355604634905,"endHours":12.797355604634905,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:48","end":"13:48","startHours":12.797355604634905,"endHours":13.797355604634905,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:48","end":"14:48","startHours":13.797355604634905,"endHours":14.797355604634905,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:48","end":"15:48","startHours":14.797355604634905,"endHours":15.797355604634905,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:48","end":"16:48","startHours":15.797355604634905,"endHours":16.797355604634905,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:48","end":"17:48","startHours":16.797355604634905,"endHours":17.797355604634905,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:48","end":"18:48","startHours":17.797355604634905,"endHours":18.797355604634905,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:48","end":"19:48","startHours":18.797355604634905,"endHours":19.797355604634905,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:48","end":"20:48","startHours":19.797355604634905,"endHours":20.797355604634905,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:48","end":"21:48","startHours":20.797355604634905,"endHours":21.797355604634905,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:48","end":"22:48","startHours":21.797355604634905,"endHours":22.797355604634905,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:48","end":"23:48","startHours":22.797355604634905,"endHours":23.797355604634905,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:48","end":"00:48","startHours":23.797355604634905,"endHours":24.797355604634905,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:48","end":"01:48","startHours":24.797355604634905,"endHours":25.797355604634905,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:48","end":"02:48","startHours":25.797355604634905,"endHours":26.797355604634905,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:48","end":"03:48","startHours":26.797355604634905,"endHours":27.797355604634905,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:48","end":"04:48","startHours":27.797355604634905,"endHours":28.797355604634905,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:48","end":"05:48","startHours":28.797355604634905,"endHours":29.797355604634905,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North-West","rahuVasa":"North-West","anandadiYoga":{"name":"Ānanda","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":-4.832101073541727,"eotMinutes":12.679625197867345,"ayanamsa":23.6262}},"calendars":{"vikram_samvat":2040,"vikram_samvatsara":"Dhātṛ","saka_samvat":1905,"saka_samvatsara":"Rudhirodgāri","bengali_samvat":1390,"malayalam_era":1159,"nanakshahi_year":514,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Bhādrapada","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":"Āśvina Kṛṣṇa Amāvasyā · Vikram 2040 Dhātṛ · Śaka 1905 Rudhirodgāri"},"festivals":[{"id":"mahalaya-amavasya","name":"Mahālaya Amāvasyā (Sarvapitṛ Amāvasyā)","name_sanskrit":"महालय अमावस्या","tradition":"Pan-Hindu","associated_deity":"Pitṛ-deva","significance":"Final day of Pitṛ-Pakṣa; tarpaṇa for all ancestors.","vrata":true,"detection":{"tithi_number":30,"tithi_paksha":"Kṛṣṇa","lunar_month":"Āśvina"},"precedence":1}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","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 6, 1983 CE · Perth, Australia · Vidhyamitra","description":"October 6, 1983 CE for Perth, Australia: Kṛṣṇa Amāvasyā, sūryodaya 05:48, sūryāsta 18:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1983-10-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1983-10-06","sa":"https://sa.vidhyamitra.com/city/perth/1983-10-06","hi":"https://hi.vidhyamitra.com/city/perth/1983-10-06","x-default":"https://vidhyamitra.com/city/perth/1983-10-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T03:09:27.803Z","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":"2026-05-31T03:09:27.803Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T03:09:27.803Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}