{"id":"vidhyamitra:city-day:perth:2163-01-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2163-01-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2163-01-12","date_display":"January 12, 2163 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":2163,"month":1,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2511090.770833,"kali_year":5264,"ahargana":1922625.2708,"sun":{"sidereal_longitude":264.8963,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":350.8358,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":85.9395,"elapsed_within_tithi_degrees":1.9395},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":350.8358,"elapsed_within_degrees":4.1692},"yoga":{"number":20,"name":"Śiva","sum_longitude":255.7321},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2163,"month":1,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2511090.770833,"ahargana":1922625.2708,"kali_year":5264,"ayanamsa_lahiri":26.1304,"grahas":{"sun":{"sidereal_longitude":265.43942400000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":352.672624,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false,"latitude":1.4804},"mars":{"sidereal_longitude":225.50142400000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":244.55542400000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":269.95192399999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":221.47792400000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":223.79272400000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":190.0608,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":10.0608,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":2163,"month":1,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2511090.770833,"kali_year":5264,"ahargana":1922625.2708,"sun":{"sidereal_longitude":264.8963,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":350.8358,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":85.9395,"elapsed_within_tithi_degrees":1.9395},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":350.8358,"elapsed_within_degrees":4.1692},"yoga":{"number":20,"name":"Śiva","sum_longitude":255.7321},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.48,"elongation":85.94},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.48,"opposition_distance":94.06}},"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":"05:23","sunsetLocal":"19:27","solarNoonLocal":"12:25","dayLengthHours":14.062657814171022,"dayLengthDisplay":"14 Hours 03 Mins 46 Secs","nightLengthDisplay":"9 Hours 56 Mins 14 Secs","moonriseLocal":"12:29","moonsetLocal":"23:58","rahuKala":{"name":"Rāhu Kāla","start":"12:25","end":"14:10","startHours":12.413724710606296,"endHours":14.171556937377673,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:08","end":"08:54","startHours":7.140228030292164,"endHours":8.898060257063541,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:39","end":"12:25","startHours":10.655892483834918,"endHours":12.413724710606296,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:40","end":"09:08","startHours":8.663682626827358,"endHours":9.132437887299725,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:58","end":"06:21","startHours":5.9683398791112445,"endHours":6.343344087489139,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:53","startHours":11.94496945013393,"endHours":12.882479971078665,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:30","end":"04:27","startHours":3.5073747616313162,"endHours":4.444885282576051,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:13","end":"05:23","startHours":4.210507652339867,"endHours":5.382395803520786,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:45","end":"15:42","startHours":14.757501012968135,"endHours":15.695011533912869,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:15","end":"19:39","startHours":19.24505361769181,"endHours":19.645053617691808,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:27","end":"20:02","startHours":19.44505361769181,"endHours":20.030997693282266,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:12","end":"20:57","startHours":19.19505361769181,"endHours":20.94505361769181,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:53","startHours":23.94496945013393,"endHours":24.882479971078663,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:23","end":"07:08","startHours":5.382395803520786,"endHours":7.140228030292164,"quality":"auspicious"},{"name":"Amṛta","start":"07:08","end":"08:54","startHours":7.140228030292164,"endHours":8.898060257063541,"quality":"auspicious"},{"name":"Kāla","start":"08:54","end":"10:39","startHours":8.898060257063541,"endHours":10.655892483834918,"quality":"inauspicious"},{"name":"Śubha","start":"10:39","end":"12:25","startHours":10.655892483834918,"endHours":12.413724710606296,"quality":"auspicious"},{"name":"Roga","start":"12:25","end":"14:10","startHours":12.413724710606296,"endHours":14.171556937377673,"quality":"inauspicious"},{"name":"Udveg","start":"14:10","end":"15:56","startHours":14.171556937377673,"endHours":15.929389164149054,"quality":"inauspicious"},{"name":"Chala","start":"15:56","end":"17:41","startHours":15.929389164149054,"endHours":17.68722139092043,"quality":"neutral"},{"name":"Labha","start":"17:41","end":"19:27","startHours":17.68722139092043,"endHours":19.44505361769181,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:27","end":"20:41","startHours":19.44505361769181,"endHours":20.68722139092043,"quality":"inauspicious"},{"name":"Chala","start":"20:41","end":"21:56","startHours":20.68722139092043,"endHours":21.929389164149054,"quality":"neutral"},{"name":"Labha","start":"21:56","end":"23:10","startHours":21.929389164149054,"endHours":23.171556937377677,"quality":"auspicious"},{"name":"Amṛta","start":"23:10","end":"00:25","startHours":23.171556937377677,"endHours":24.413724710606296,"quality":"auspicious"},{"name":"Kāla","start":"00:25","end":"01:39","startHours":24.413724710606296,"endHours":25.65589248383492,"quality":"inauspicious"},{"name":"Śubha","start":"01:39","end":"02:54","startHours":25.65589248383492,"endHours":26.89806025706354,"quality":"auspicious"},{"name":"Roga","start":"02:54","end":"04:08","startHours":26.89806025706354,"endHours":28.140228030292164,"quality":"inauspicious"},{"name":"Udveg","start":"04:08","end":"05:23","startHours":28.140228030292164,"endHours":29.382395803520787,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:23","end":"06:23","startHours":5.382395803520786,"endHours":6.382395803520786,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:23","end":"07:23","startHours":6.382395803520786,"endHours":7.382395803520786,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:23","end":"08:23","startHours":7.382395803520786,"endHours":8.382395803520787,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:23","end":"09:23","startHours":8.382395803520787,"endHours":9.382395803520787,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:23","end":"10:23","startHours":9.382395803520787,"endHours":10.382395803520787,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:23","end":"11:23","startHours":10.382395803520787,"endHours":11.382395803520787,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:23","end":"12:23","startHours":11.382395803520787,"endHours":12.382395803520787,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:23","end":"13:23","startHours":12.382395803520787,"endHours":13.382395803520787,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:23","end":"14:23","startHours":13.382395803520787,"endHours":14.382395803520787,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:23","end":"15:23","startHours":14.382395803520787,"endHours":15.382395803520787,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:23","end":"16:23","startHours":15.382395803520787,"endHours":16.382395803520787,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:23","end":"17:23","startHours":16.382395803520787,"endHours":17.382395803520787,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:23","end":"18:23","startHours":17.382395803520787,"endHours":18.382395803520787,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:23","end":"19:23","startHours":18.382395803520787,"endHours":19.382395803520787,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:23","end":"20:23","startHours":19.382395803520787,"endHours":20.382395803520787,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:23","end":"21:23","startHours":20.382395803520787,"endHours":21.382395803520787,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:23","end":"22:23","startHours":21.382395803520787,"endHours":22.382395803520787,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:23","end":"23:23","startHours":22.382395803520787,"endHours":23.382395803520787,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:23","end":"00:23","startHours":23.382395803520787,"endHours":24.382395803520787,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:23","end":"01:23","startHours":24.382395803520787,"endHours":25.382395803520787,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:23","end":"02:23","startHours":25.382395803520787,"endHours":26.382395803520787,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:23","end":"03:23","startHours":26.382395803520787,"endHours":27.382395803520787,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:23","end":"04:23","startHours":27.382395803520787,"endHours":28.382395803520787,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:23","end":"05:23","startHours":28.382395803520787,"endHours":29.382395803520787,"planetary_lord":"Sun"}],"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":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"South-West","anandadiYoga":{"name":"Chatra","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":-21.708176759114394,"eotMinutes":-8.265482636377905,"ayanamsa":26.1304}},"calendars":{"vikram_samvat":2220,"vikram_samvatsara":"Dhātṛ","saka_samvat":2085,"saka_samvatsara":"Rudhirodgāri","bengali_samvat":1570,"malayalam_era":1339,"nanakshahi_year":694,"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 Aṣṭamī · Vikram 2220 Dhātṛ · Śaka 2085 Rudhirodgāri"},"festivals":[],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","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 12, 2163 CE · Perth, Australia · Vidhyamitra","description":"January 12, 2163 CE for Perth, Australia: Śukla Aṣṭamī, sūryodaya 05:23, sūryāsta 19:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2163-01-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2163-01-12","sa":"https://sa.vidhyamitra.com/city/perth/2163-01-12","hi":"https://hi.vidhyamitra.com/city/perth/2163-01-12","x-default":"https://vidhyamitra.com/city/perth/2163-01-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T18:45:38.929Z","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":"2026-06-01T18:45:38.929Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T18:45:38.929Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}