{"id":"vidhyamitra:city-day:perth:1971-01-05:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1971-01-05","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1971-01-05","date_display":"January 5, 1971 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":1971,"month":1,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2440956.770833,"kali_year":5072,"ahargana":1852491.2708,"sun":{"sidereal_longitude":260.457,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":359.771,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":99.3139,"elapsed_within_tithi_degrees":3.3139},"nakshatra":{"number":27,"name":"Revatī","pada":4,"moon_longitude":359.771,"elapsed_within_degrees":13.1043},"yoga":{"number":20,"name":"Śiva","sum_longitude":260.228},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1971,"month":1,"day":5,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2440956.770833,"ahargana":1852491.2708,"kali_year":5072,"ayanamsa_lahiri":23.448,"grahas":{"sun":{"sidereal_longitude":260.587759,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":1.3225590000000125,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false,"latitude":3.6241},"mars":{"sidereal_longitude":205.55665900000008,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":245.422459,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":215.674759,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":215.09025900000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":22.823059,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":306.0977,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":126.0977,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":1971,"month":1,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2440956.770833,"kali_year":5072,"ahargana":1852491.2708,"sun":{"sidereal_longitude":260.457,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":359.771,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":99.3139,"elapsed_within_tithi_degrees":3.3139},"nakshatra":{"number":27,"name":"Revatī","pada":4,"moon_longitude":359.771,"elapsed_within_degrees":13.1043},"yoga":{"number":20,"name":"Śiva","sum_longitude":260.228},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.624,"elongation":99.314},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.624,"opposition_distance":80.686}},"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":14.163413002764925,"dayLengthDisplay":"14 Hours 09 Mins 48 Secs","nightLengthDisplay":"9 Hours 50 Mins 12 Secs","moonriseLocal":"13:26","moonsetLocal":"00:44","rahuKala":{"name":"Rāhu Kāla","start":"15:54","end":"17:41","startHours":15.907699427760615,"endHours":17.678126053106233,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:50","end":"10:36","startHours":8.825992926378154,"endHours":10.59641955172377,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:22","end":"14:08","startHours":12.366846177069384,"endHours":14.137272802415,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:35","end":"09:04","startHours":8.589936042998739,"endHours":9.06204980975757,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:53","end":"06:15","startHours":5.875281884135461,"endHours":6.252972897542525,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:50","startHours":11.894732410310553,"endHours":12.838959943828215,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:24","end":"04:20","startHours":3.396684608651599,"endHours":4.340912142169261,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:06","end":"05:17","startHours":4.104855258789845,"endHours":5.2851396756869224,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:40","startHours":14.727415010863538,"endHours":15.6716425443812,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:15","end":"19:39","startHours":19.248552678451848,"endHours":19.648552678451846,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:27","end":"20:02","startHours":19.448552678451847,"endHours":20.038694886900384,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:12","end":"20:57","startHours":19.198552678451847,"endHours":20.948552678451847,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:50","startHours":23.894732410310553,"endHours":24.838959943828215,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:17","end":"07:03","startHours":5.2851396756869224,"endHours":7.055566301032538,"quality":"inauspicious"},{"name":"Udveg","start":"07:03","end":"08:50","startHours":7.055566301032538,"endHours":8.825992926378154,"quality":"inauspicious"},{"name":"Chala","start":"08:50","end":"10:36","startHours":8.825992926378154,"endHours":10.59641955172377,"quality":"neutral"},{"name":"Labha","start":"10:36","end":"12:22","startHours":10.59641955172377,"endHours":12.366846177069384,"quality":"auspicious"},{"name":"Amṛta","start":"12:22","end":"14:08","startHours":12.366846177069384,"endHours":14.137272802415,"quality":"auspicious"},{"name":"Kāla","start":"14:08","end":"15:54","startHours":14.137272802415,"endHours":15.907699427760615,"quality":"inauspicious"},{"name":"Śubha","start":"15:54","end":"17:41","startHours":15.907699427760615,"endHours":17.678126053106233,"quality":"auspicious"},{"name":"Roga","start":"17:41","end":"19:27","startHours":17.678126053106233,"endHours":19.448552678451847,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:27","end":"20:41","startHours":19.448552678451847,"endHours":20.678126053106233,"quality":"inauspicious"},{"name":"Śubha","start":"20:41","end":"21:54","startHours":20.678126053106233,"endHours":21.907699427760615,"quality":"auspicious"},{"name":"Roga","start":"21:54","end":"23:08","startHours":21.907699427760615,"endHours":23.137272802415,"quality":"inauspicious"},{"name":"Udveg","start":"23:08","end":"00:22","startHours":23.137272802415,"endHours":24.366846177069384,"quality":"inauspicious"},{"name":"Chala","start":"00:22","end":"01:36","startHours":24.366846177069384,"endHours":25.59641955172377,"quality":"neutral"},{"name":"Labha","start":"01:36","end":"02:50","startHours":25.59641955172377,"endHours":26.825992926378156,"quality":"auspicious"},{"name":"Amṛta","start":"02:50","end":"04:03","startHours":26.825992926378156,"endHours":28.05556630103254,"quality":"auspicious"},{"name":"Kāla","start":"04:03","end":"05:17","startHours":28.05556630103254,"endHours":29.28513967568692,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:17","end":"06:17","startHours":5.2851396756869224,"endHours":6.2851396756869224,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:17","end":"07:17","startHours":6.2851396756869224,"endHours":7.2851396756869224,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:17","end":"08:17","startHours":7.2851396756869224,"endHours":8.285139675686922,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:17","end":"09:17","startHours":8.285139675686922,"endHours":9.285139675686922,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:17","end":"10:17","startHours":9.285139675686922,"endHours":10.285139675686922,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:17","end":"11:17","startHours":10.285139675686922,"endHours":11.285139675686922,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:17","end":"12:17","startHours":11.285139675686922,"endHours":12.285139675686922,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:17","end":"13:17","startHours":12.285139675686922,"endHours":13.285139675686922,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:17","end":"14:17","startHours":13.285139675686922,"endHours":14.285139675686922,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:17","end":"15:17","startHours":14.285139675686922,"endHours":15.285139675686922,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:17","end":"16:17","startHours":15.285139675686922,"endHours":16.28513967568692,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:17","end":"17:17","startHours":16.28513967568692,"endHours":17.28513967568692,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:17","end":"18:17","startHours":17.28513967568692,"endHours":18.28513967568692,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:17","end":"19:17","startHours":18.28513967568692,"endHours":19.28513967568692,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:17","end":"20:17","startHours":19.28513967568692,"endHours":20.28513967568692,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:17","end":"21:17","startHours":20.28513967568692,"endHours":21.28513967568692,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:17","end":"22:17","startHours":21.28513967568692,"endHours":22.28513967568692,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:17","end":"23:17","startHours":22.28513967568692,"endHours":23.28513967568692,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:17","end":"00:17","startHours":23.28513967568692,"endHours":24.28513967568692,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:17","end":"01:17","startHours":24.28513967568692,"endHours":25.28513967568692,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:17","end":"02:17","startHours":25.28513967568692,"endHours":26.28513967568692,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:17","end":"03:17","startHours":26.28513967568692,"endHours":27.28513967568692,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:17","end":"04:17","startHours":27.28513967568692,"endHours":28.28513967568692,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:17","end":"05:17","startHours":28.28513967568692,"endHours":29.28513967568692,"planetary_lord":"Saturn"}],"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","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Dhvaja","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":-22.69701503551469,"eotMinutes":-5.452770624163118,"ayanamsa":23.448}},"calendars":{"vikram_samvat":2028,"vikram_samvatsara":"Raktākṣī","saka_samvat":1893,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1378,"malayalam_era":1147,"nanakshahi_year":502,"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 Navamī · Vikram 2028 Raktākṣī · Śaka 1893 Virodhakṛt"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 January 5, 1971 CE · Perth, Australia · Vidhyamitra","description":"January 5, 1971 CE for Perth, Australia: Śukla Navamī, sūryodaya 05:17, sūryāsta 19:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1971-01-05","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1971-01-05","sa":"https://sa.vidhyamitra.com/city/perth/1971-01-05","hi":"https://hi.vidhyamitra.com/city/perth/1971-01-05","x-default":"https://vidhyamitra.com/city/perth/1971-01-05"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T20:30:16.654Z","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":"2026-05-31T20:30:16.654Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T20:30:16.654Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}