{"id":"vidhyamitra:city-day:perth:1973-01-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1973-01-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1973-01-08","date_display":"January 8, 1973 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":1973,"month":1,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441690.770833,"kali_year":5074,"ahargana":1853225.2708,"sun":{"sidereal_longitude":264.0368,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":304.5571,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":40.5203,"elapsed_within_tithi_degrees":4.5203},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":304.5571,"elapsed_within_degrees":11.2238},"yoga":{"number":16,"name":"Siddhi","sum_longitude":208.594},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"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":1973,"month":1,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441690.770833,"ahargana":1853225.2708,"kali_year":5074,"ayanamsa_lahiri":23.4761,"grahas":{"sun":{"sidereal_longitude":264.142014,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":302.71711400000004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false,"latitude":2.7283},"mars":{"sidereal_longitude":222.592214,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":252.099014,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":266.518814,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":242.205914,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":51.655013999999994,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":267.2068,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":87.2068,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":"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":1973,"month":1,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441690.770833,"kali_year":5074,"ahargana":1853225.2708,"sun":{"sidereal_longitude":264.0368,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":304.5571,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":40.5203,"elapsed_within_tithi_degrees":4.5203},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":304.5571,"elapsed_within_degrees":11.2238},"yoga":{"number":16,"name":"Siddhi","sum_longitude":208.594},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.728,"elongation":40.52},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.728,"opposition_distance":139.48}},"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":"05:20","sunsetLocal":"19:27","solarNoonLocal":"12:23","dayLengthHours":14.120341508273746,"dayLengthDisplay":"14 Hours 07 Mins 13 Secs","nightLengthDisplay":"9 Hours 52 Mins 47 Secs","moonriseLocal":"08:22","moonsetLocal":"21:33","rahuKala":{"name":"Rāhu Kāla","start":"07:06","end":"08:51","startHours":7.0925344949528,"endHours":8.857577183487019,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:37","end":"12:23","startHours":10.622619872021236,"endHours":12.387662560555455,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:09","end":"15:55","startHours":14.152705249089674,"endHours":15.917747937623892,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:37","end":"09:06","startHours":8.622238158349123,"endHours":9.092916208624914,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:55","end":"06:18","startHours":5.915839369263321,"endHours":6.292381809483954,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:52","startHours":11.916984510279663,"endHours":12.858340610831247,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:27","end":"04:23","startHours":3.4447796053154156,"endHours":4.386135705866999,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:09","end":"05:20","startHours":4.150796680729103,"endHours":5.327491806418582,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:41","startHours":14.741052811934413,"endHours":15.682408912485997,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:15","end":"19:39","startHours":19.24783331469233,"endHours":19.647833314692328,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:27","end":"20:02","startHours":19.44783331469233,"endHours":20.036180877537067,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:12","end":"20:57","startHours":19.19783331469233,"endHours":20.94783331469233,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:52","startHours":23.916984510279665,"endHours":24.858340610831245,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:20","end":"07:06","startHours":5.327491806418582,"endHours":7.0925344949528,"quality":"auspicious"},{"name":"Kāla","start":"07:06","end":"08:51","startHours":7.0925344949528,"endHours":8.857577183487019,"quality":"inauspicious"},{"name":"Śubha","start":"08:51","end":"10:37","startHours":8.857577183487019,"endHours":10.622619872021236,"quality":"auspicious"},{"name":"Roga","start":"10:37","end":"12:23","startHours":10.622619872021236,"endHours":12.387662560555455,"quality":"inauspicious"},{"name":"Udveg","start":"12:23","end":"14:09","startHours":12.387662560555455,"endHours":14.152705249089674,"quality":"inauspicious"},{"name":"Chala","start":"14:09","end":"15:55","startHours":14.152705249089674,"endHours":15.917747937623892,"quality":"neutral"},{"name":"Labha","start":"15:55","end":"17:41","startHours":15.917747937623892,"endHours":17.68279062615811,"quality":"auspicious"},{"name":"Amṛta","start":"17:41","end":"19:27","startHours":17.68279062615811,"endHours":19.44783331469233,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:27","end":"20:41","startHours":19.44783331469233,"endHours":20.68279062615811,"quality":"neutral"},{"name":"Labha","start":"20:41","end":"21:55","startHours":20.68279062615811,"endHours":21.917747937623894,"quality":"auspicious"},{"name":"Amṛta","start":"21:55","end":"23:09","startHours":21.917747937623894,"endHours":23.152705249089674,"quality":"auspicious"},{"name":"Kāla","start":"23:09","end":"00:23","startHours":23.152705249089674,"endHours":24.387662560555455,"quality":"inauspicious"},{"name":"Śubha","start":"00:23","end":"01:37","startHours":24.387662560555455,"endHours":25.622619872021236,"quality":"auspicious"},{"name":"Roga","start":"01:37","end":"02:51","startHours":25.622619872021236,"endHours":26.857577183487017,"quality":"inauspicious"},{"name":"Udveg","start":"02:51","end":"04:06","startHours":26.857577183487017,"endHours":28.0925344949528,"quality":"inauspicious"},{"name":"Chala","start":"04:06","end":"05:20","startHours":28.0925344949528,"endHours":29.327491806418582,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:20","end":"06:20","startHours":5.327491806418582,"endHours":6.327491806418582,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:20","end":"07:20","startHours":6.327491806418582,"endHours":7.327491806418582,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:20","end":"08:20","startHours":7.327491806418582,"endHours":8.327491806418582,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:20","end":"09:20","startHours":8.327491806418582,"endHours":9.327491806418582,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:20","end":"10:20","startHours":9.327491806418582,"endHours":10.327491806418582,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:20","end":"11:20","startHours":10.327491806418582,"endHours":11.327491806418582,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:20","end":"12:20","startHours":11.327491806418582,"endHours":12.327491806418582,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:20","end":"13:20","startHours":12.327491806418582,"endHours":13.327491806418582,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:20","end":"14:20","startHours":13.327491806418582,"endHours":14.327491806418582,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:20","end":"15:20","startHours":14.327491806418582,"endHours":15.327491806418582,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:20","end":"16:20","startHours":15.327491806418582,"endHours":16.327491806418582,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:20","end":"17:20","startHours":16.327491806418582,"endHours":17.327491806418582,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:20","end":"18:20","startHours":17.327491806418582,"endHours":18.327491806418582,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:20","end":"19:20","startHours":18.327491806418582,"endHours":19.327491806418582,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:20","end":"20:20","startHours":19.327491806418582,"endHours":20.327491806418582,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:20","end":"21:20","startHours":20.327491806418582,"endHours":21.327491806418582,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:20","end":"22:20","startHours":21.327491806418582,"endHours":22.327491806418582,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:20","end":"23:20","startHours":22.327491806418582,"endHours":23.327491806418582,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:20","end":"00:20","startHours":23.327491806418582,"endHours":24.327491806418582,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:20","end":"01:20","startHours":24.327491806418582,"endHours":25.327491806418582,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:20","end":"02:20","startHours":25.327491806418582,"endHours":26.327491806418582,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:20","end":"03:20","startHours":26.327491806418582,"endHours":27.327491806418582,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:20","end":"04:20","startHours":27.327491806418582,"endHours":28.327491806418582,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:20","end":"05:20","startHours":28.327491806418582,"endHours":29.327491806418582,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-22.276511135842906,"eotMinutes":-6.7017536333273355,"ayanamsa":23.4761}},"calendars":{"vikram_samvat":2030,"vikram_samvatsara":"Akṣaya","saka_samvat":1895,"saka_samvatsara":"Pramādī","bengali_samvat":1380,"malayalam_era":1149,"nanakshahi_year":504,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Caturthī · Vikram 2030 Akṣaya · Śaka 1895 Pramādī"},"festivals":[{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"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 Vināyaka Caturthī (monthly) 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 January 8, 1973 CE · Perth, Australia · Vidhyamitra","description":"January 8, 1973 CE for Perth, Australia: Śukla Caturthī, sūryodaya 05:20, sūryāsta 19:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1973-01-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1973-01-08","sa":"https://sa.vidhyamitra.com/city/perth/1973-01-08","hi":"https://hi.vidhyamitra.com/city/perth/1973-01-08","x-default":"https://vidhyamitra.com/city/perth/1973-01-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-05T18:22:09.319Z","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":"2026-09-05T18:22:09.319Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-05T18:22:09.319Z","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"}}}