{"id":"vidhyamitra:city-day:perth:1980-01-05:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1980-01-05","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1980-01-05","date_display":"January 5, 1980 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":1980,"month":1,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444243.770833,"kali_year":5081,"ahargana":1855778.2708,"sun":{"sidereal_longitude":260.119,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":113.2267,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":213.1077,"elapsed_within_tithi_degrees":9.1077},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":113.2267,"elapsed_within_degrees":6.56},"yoga":{"number":2,"name":"Prīti","sum_longitude":13.3457},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1980,"month":1,"day":5,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444243.770833,"ahargana":1855778.2708,"kali_year":5081,"ayanamsa_lahiri":23.5738,"grahas":{"sun":{"sidereal_longitude":260.27357099999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":110.918971,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false,"latitude":-1.4422},"mars":{"sidereal_longitude":141.30297099999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":250.89807100000007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":136.29567099999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":293.08287100000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":153.25957100000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":131.9366,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":311.9366,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"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":1980,"month":1,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444243.770833,"kali_year":5081,"ahargana":1855778.2708,"sun":{"sidereal_longitude":260.119,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":113.2267,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":213.1077,"elapsed_within_tithi_degrees":9.1077},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":113.2267,"elapsed_within_degrees":6.56},"yoga":{"number":2,"name":"Prīti","sum_longitude":13.3457},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.442,"elongation":146.892},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.442,"opposition_distance":33.108}},"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":"05:17","sunsetLocal":"19:27","solarNoonLocal":"12:22","dayLengthHours":14.165425770850732,"dayLengthDisplay":"14 Hours 09 Mins 56 Secs","nightLengthDisplay":"9 Hours 50 Mins 04 Secs","moonriseLocal":"21:04","moonsetLocal":"07:45","rahuKala":{"name":"Rāhu Kāla","start":"08:50","end":"10:36","startHours":8.825489734356701,"endHours":10.596167955713042,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:08","end":"15:54","startHours":14.137524398425725,"endHours":15.908202619782067,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:17","end":"07:03","startHours":5.284133291644017,"endHours":7.054811513000359,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:35","end":"09:04","startHours":8.589399304842521,"endHours":9.061580163870879,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:52","end":"06:15","startHours":5.874359365429465,"endHours":6.25210405265215,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:50","startHours":11.894665318041026,"endHours":12.839027036097741,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:24","end":"04:20","startHours":3.3954098555305863,"endHours":4.339771573587302,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:06","end":"05:17","startHours":4.103681144073123,"endHours":5.284133291644017,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:40","startHours":14.72775047221117,"endHours":15.672112190267885,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:15","end":"19:39","startHours":19.24955906249475,"endHours":19.64955906249475,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:27","end":"20:02","startHours":19.44955906249475,"endHours":20.039785136280198,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:12","end":"20:57","startHours":19.19955906249475,"endHours":20.94955906249475,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:50","startHours":23.894665318041024,"endHours":24.839027036097743,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:17","end":"07:03","startHours":5.284133291644017,"endHours":7.054811513000359,"quality":"inauspicious"},{"name":"Śubha","start":"07:03","end":"08:50","startHours":7.054811513000359,"endHours":8.825489734356701,"quality":"auspicious"},{"name":"Roga","start":"08:50","end":"10:36","startHours":8.825489734356701,"endHours":10.596167955713042,"quality":"inauspicious"},{"name":"Udveg","start":"10:36","end":"12:22","startHours":10.596167955713042,"endHours":12.366846177069384,"quality":"inauspicious"},{"name":"Chala","start":"12:22","end":"14:08","startHours":12.366846177069384,"endHours":14.137524398425725,"quality":"neutral"},{"name":"Labha","start":"14:08","end":"15:54","startHours":14.137524398425725,"endHours":15.908202619782067,"quality":"auspicious"},{"name":"Amṛta","start":"15:54","end":"17:41","startHours":15.908202619782067,"endHours":17.678880841138408,"quality":"auspicious"},{"name":"Kāla","start":"17:41","end":"19:27","startHours":17.678880841138408,"endHours":19.44955906249475,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:27","end":"20:41","startHours":19.44955906249475,"endHours":20.678880841138408,"quality":"auspicious"},{"name":"Amṛta","start":"20:41","end":"21:54","startHours":20.678880841138408,"endHours":21.908202619782067,"quality":"auspicious"},{"name":"Kāla","start":"21:54","end":"23:08","startHours":21.908202619782067,"endHours":23.137524398425725,"quality":"inauspicious"},{"name":"Śubha","start":"23:08","end":"00:22","startHours":23.137524398425725,"endHours":24.366846177069384,"quality":"auspicious"},{"name":"Roga","start":"00:22","end":"01:36","startHours":24.366846177069384,"endHours":25.596167955713042,"quality":"inauspicious"},{"name":"Udveg","start":"01:36","end":"02:50","startHours":25.596167955713042,"endHours":26.8254897343567,"quality":"inauspicious"},{"name":"Chala","start":"02:50","end":"04:03","startHours":26.8254897343567,"endHours":28.05481151300036,"quality":"neutral"},{"name":"Labha","start":"04:03","end":"05:17","startHours":28.05481151300036,"endHours":29.284133291644018,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:17","end":"06:17","startHours":5.284133291644017,"endHours":6.284133291644017,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:17","end":"07:17","startHours":6.284133291644017,"endHours":7.284133291644017,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:17","end":"08:17","startHours":7.284133291644017,"endHours":8.284133291644018,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:17","end":"09:17","startHours":8.284133291644018,"endHours":9.284133291644018,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:17","end":"10:17","startHours":9.284133291644018,"endHours":10.284133291644018,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:17","end":"11:17","startHours":10.284133291644018,"endHours":11.284133291644018,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:17","end":"12:17","startHours":11.284133291644018,"endHours":12.284133291644018,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:17","end":"13:17","startHours":12.284133291644018,"endHours":13.284133291644018,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:17","end":"14:17","startHours":13.284133291644018,"endHours":14.284133291644018,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:17","end":"15:17","startHours":14.284133291644018,"endHours":15.284133291644018,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:17","end":"16:17","startHours":15.284133291644018,"endHours":16.284133291644018,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:17","end":"17:17","startHours":16.284133291644018,"endHours":17.284133291644018,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:17","end":"18:17","startHours":17.284133291644018,"endHours":18.284133291644018,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:17","end":"19:17","startHours":18.284133291644018,"endHours":19.284133291644018,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:17","end":"20:17","startHours":19.284133291644018,"endHours":20.284133291644018,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:17","end":"21:17","startHours":20.284133291644018,"endHours":21.284133291644018,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:17","end":"22:17","startHours":21.284133291644018,"endHours":22.284133291644018,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:17","end":"23:17","startHours":22.284133291644018,"endHours":23.284133291644018,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:17","end":"00:17","startHours":23.284133291644018,"endHours":24.284133291644018,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:17","end":"01:17","startHours":24.284133291644018,"endHours":25.284133291644018,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:17","end":"02:17","startHours":25.284133291644018,"endHours":26.284133291644018,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:17","end":"03:17","startHours":26.284133291644018,"endHours":27.284133291644018,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:17","end":"04:17","startHours":27.284133291644018,"endHours":28.284133291644018,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:17","end":"05:17","startHours":28.284133291644018,"endHours":29.284133291644018,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Saumya","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":-22.716584374230226,"eotMinutes":-5.452770624163118,"ayanamsa":23.5738}},"calendars":{"vikram_samvat":2037,"vikram_samvatsara":"Śrīmukha","saka_samvat":1902,"saka_samvatsara":"Raudra","bengali_samvat":1387,"malayalam_era":1156,"nanakshahi_year":511,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","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":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Tṛtīyā · Vikram 2037 Śrīmukha · Śaka 1902 Raudra"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 5, 1980 CE · Perth, Australia · Vidhyamitra","description":"January 5, 1980 CE for Perth, Australia: Kṛṣṇa Tṛtīyā, sūryodaya 05:17, sūryāsta 19:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1980-01-05","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1980-01-05","sa":"https://sa.vidhyamitra.com/city/perth/1980-01-05","hi":"https://hi.vidhyamitra.com/city/perth/1980-01-05","x-default":"https://vidhyamitra.com/city/perth/1980-01-05"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T16:39:02.562Z","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":"2026-06-01T16:39:02.562Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T16:39:02.562Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}