{"id":"vidhyamitra:city-day:perth:1963-12-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1963-12-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1963-12-08","date_display":"December 8, 1963 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":1963,"month":12,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438371.770833,"kali_year":5065,"ahargana":1849906.2708,"sun":{"sidereal_longitude":231.5114,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":140.4341,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":268.9227,"elapsed_within_tithi_degrees":4.9227},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":140.4341,"elapsed_within_degrees":7.1008},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":11.9455},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1963,"month":12,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438371.770833,"ahargana":1849906.2708,"kali_year":5065,"ayanamsa_lahiri":23.3492,"grahas":{"sun":{"sidereal_longitude":231.87182499999994,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":143.603225,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false,"latitude":3.7887},"mars":{"sidereal_longitude":249.173225,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":249.90992499999993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":346.900525,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":257.62942499999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":295.62822499999993,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":83.0634,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":263.0634,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":1963,"month":12,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438371.770833,"kali_year":5065,"ahargana":1849906.2708,"sun":{"sidereal_longitude":231.5114,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":140.4341,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":268.9227,"elapsed_within_tithi_degrees":4.9227},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":140.4341,"elapsed_within_degrees":7.1008},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":11.9455},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.789,"elongation":91.077},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.789,"opposition_distance":88.923}},"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":"05:05","sunsetLocal":"19:14","solarNoonLocal":"12:09","dayLengthHours":14.155223300496573,"dayLengthDisplay":"14 Hours 09 Mins 19 Secs","nightLengthDisplay":"9 Hours 50 Mins 41 Secs","moonriseLocal":"00:26","moonsetLocal":"12:06","rahuKala":{"name":"Rāhu Kāla","start":"17:28","end":"19:14","startHours":17.462538319247315,"endHours":19.231941231809387,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:09","end":"13:55","startHours":12.1543295815611,"endHours":13.923732494123172,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:42","end":"17:28","startHours":15.693135406685244,"endHours":17.462538319247315,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:23","end":"08:51","startHours":8.37960336809535,"endHours":8.851444144778569,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:40","end":"06:03","startHours":5.666518902166839,"endHours":6.043991523513414,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:38","startHours":11.682488804877881,"endHours":12.62617035824432,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:11","end":"04:08","startHours":3.1893548245799384,"endHours":4.133036377946377,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:54","end":"05:05","startHours":3.897115989604767,"endHours":5.076717931312815,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:27","startHours":14.513533464977197,"endHours":15.457215018343636,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:02","end":"19:26","startHours":19.031941231809387,"endHours":19.431941231809386,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:14","end":"19:49","startHours":19.231941231809387,"endHours":19.821742202663412,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:59","end":"20:44","startHours":18.981941231809387,"endHours":20.731941231809387,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:38","startHours":23.68248880487788,"endHours":24.62617035824432,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:05","end":"06:51","startHours":5.076717931312815,"endHours":6.846120843874886,"quality":"inauspicious"},{"name":"Chala","start":"06:51","end":"08:37","startHours":6.846120843874886,"endHours":8.615523756436957,"quality":"neutral"},{"name":"Labha","start":"08:37","end":"10:23","startHours":8.615523756436957,"endHours":10.384926668999029,"quality":"auspicious"},{"name":"Amṛta","start":"10:23","end":"12:09","startHours":10.384926668999029,"endHours":12.1543295815611,"quality":"auspicious"},{"name":"Kāla","start":"12:09","end":"13:55","startHours":12.1543295815611,"endHours":13.923732494123172,"quality":"inauspicious"},{"name":"Śubha","start":"13:55","end":"15:42","startHours":13.923732494123172,"endHours":15.693135406685244,"quality":"auspicious"},{"name":"Roga","start":"15:42","end":"17:28","startHours":15.693135406685244,"endHours":17.462538319247315,"quality":"inauspicious"},{"name":"Udveg","start":"17:28","end":"19:14","startHours":17.462538319247315,"endHours":19.231941231809387,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:14","end":"20:28","startHours":19.231941231809387,"endHours":20.462538319247315,"quality":"auspicious"},{"name":"Roga","start":"20:28","end":"21:42","startHours":20.462538319247315,"endHours":21.693135406685244,"quality":"inauspicious"},{"name":"Udveg","start":"21:42","end":"22:55","startHours":21.693135406685244,"endHours":22.923732494123172,"quality":"inauspicious"},{"name":"Chala","start":"22:55","end":"00:09","startHours":22.923732494123172,"endHours":24.1543295815611,"quality":"neutral"},{"name":"Labha","start":"00:09","end":"01:23","startHours":24.1543295815611,"endHours":25.38492666899903,"quality":"auspicious"},{"name":"Amṛta","start":"01:23","end":"02:37","startHours":25.38492666899903,"endHours":26.615523756436957,"quality":"auspicious"},{"name":"Kāla","start":"02:37","end":"03:51","startHours":26.615523756436957,"endHours":27.846120843874886,"quality":"inauspicious"},{"name":"Śubha","start":"03:51","end":"05:05","startHours":27.846120843874886,"endHours":29.076717931312814,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:05","end":"06:05","startHours":5.076717931312815,"endHours":6.076717931312815,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:05","end":"07:05","startHours":6.076717931312815,"endHours":7.076717931312815,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:05","end":"08:05","startHours":7.076717931312815,"endHours":8.076717931312814,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:05","end":"09:05","startHours":8.076717931312814,"endHours":9.076717931312814,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:05","end":"10:05","startHours":9.076717931312814,"endHours":10.076717931312814,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:05","end":"11:05","startHours":10.076717931312814,"endHours":11.076717931312814,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:05","end":"12:05","startHours":11.076717931312814,"endHours":12.076717931312814,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:05","end":"13:05","startHours":12.076717931312814,"endHours":13.076717931312814,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:05","end":"14:05","startHours":13.076717931312814,"endHours":14.076717931312814,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:05","end":"15:05","startHours":14.076717931312814,"endHours":15.076717931312814,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:05","end":"16:05","startHours":15.076717931312814,"endHours":16.076717931312814,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:05","end":"17:05","startHours":16.076717931312814,"endHours":17.076717931312814,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:05","end":"18:05","startHours":17.076717931312814,"endHours":18.076717931312814,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:05","end":"19:05","startHours":18.076717931312814,"endHours":19.076717931312814,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:05","end":"20:05","startHours":19.076717931312814,"endHours":20.076717931312814,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:05","end":"21:05","startHours":20.076717931312814,"endHours":21.076717931312814,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:05","end":"22:05","startHours":21.076717931312814,"endHours":22.076717931312814,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:05","end":"23:05","startHours":22.076717931312814,"endHours":23.076717931312814,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:05","end":"00:05","startHours":23.076717931312814,"endHours":24.076717931312814,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:05","end":"01:05","startHours":24.076717931312814,"endHours":25.076717931312814,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:05","end":"02:05","startHours":25.076717931312814,"endHours":26.076717931312814,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:05","end":"03:05","startHours":26.076717931312814,"endHours":27.076717931312814,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:05","end":"04:05","startHours":27.076717931312814,"endHours":28.076717931312814,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:05","end":"05:05","startHours":28.076717931312814,"endHours":29.076717931312814,"planetary_lord":"Jupiter"}],"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":"West (Paścim)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-22.617314975231682,"eotMinutes":7.298225106333945,"ayanamsa":23.3492}},"calendars":{"vikram_samvat":2020,"vikram_samvatsara":"Nala","saka_samvat":1885,"saka_samvatsara":"Śobhana","bengali_samvat":1370,"malayalam_era":1139,"nanakshahi_year":494,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Kārtika","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Kṛṣṇa Aṣṭamī · Vikram 2020 Nala · Śaka 1885 Śobhana"},"festivals":[{"id":"kalabhairava-ashtami","name":"Kālabhairava Aṣṭamī","name_sanskrit":"कालभैरव अष्टमी","tradition":"Shaiva","associated_deity":"Kālabhairava (fierce Śiva)","significance":"Kālabhairava's manifestation; Kāśī-kṣetrapāla.","vrata":true,"detection":{"tithi_number":23,"tithi_paksha":"Kṛṣṇa","lunar_month":"Mārgaśīrṣa"},"precedence":3}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","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 December 8, 1963 CE · Perth, Australia · Vidhyamitra","description":"December 8, 1963 CE for Perth, Australia: Kṛṣṇa Aṣṭamī, sūryodaya 05:05, sūryāsta 19:14.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1963-12-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1963-12-08","sa":"https://sa.vidhyamitra.com/city/perth/1963-12-08","hi":"https://hi.vidhyamitra.com/city/perth/1963-12-08","x-default":"https://vidhyamitra.com/city/perth/1963-12-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T10:22:56.560Z","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":"2026-05-31T10:22:56.560Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T10:22:56.560Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}