{"id":"vidhyamitra:city-day:perth:2073-01-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2073-01-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2073-01-18","date_display":"January 18, 2073 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":2073,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2478225.770833,"kali_year":5174,"ahargana":1889760.2708,"sun":{"sidereal_longitude":273.409,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":22.6208,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":109.2118,"elapsed_within_tithi_degrees":1.2118},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3,"moon_longitude":22.6208,"elapsed_within_degrees":9.2875},"yoga":{"number":23,"name":"Śubha","sum_longitude":296.0298},"karana":{"half_tithi_index":18,"name":"Taitila"},"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":2073,"month":1,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2478225.770833,"ahargana":1889760.2708,"kali_year":5174,"ayanamsa_lahiri":24.8734,"grahas":{"sun":{"sidereal_longitude":273.671109,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":20.942908999999986,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false,"latitude":-4.2598},"mars":{"sidereal_longitude":267.887609,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":282.88820899999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":66.87590899999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":317.74560900000006,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":208.119009,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":131.4067,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":311.4067,"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":2073,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2478225.770833,"kali_year":5174,"ahargana":1889760.2708,"sun":{"sidereal_longitude":273.409,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":22.6208,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":109.2118,"elapsed_within_tithi_degrees":1.2118},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3,"moon_longitude":22.6208,"elapsed_within_degrees":9.2875},"yoga":{"number":23,"name":"Śubha","sum_longitude":296.0298},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.26,"elongation":109.212},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.26,"opposition_distance":70.788}},"eclipse_window_40days":[{"offset_days":20,"type":"solar","occurs":true,"moon_latitude":1.189,"elongation":1.133}]},"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":"05:29","sunsetLocal":"19:25","solarNoonLocal":"12:27","dayLengthHours":13.936992662927672,"dayLengthDisplay":"13 Hours 56 Mins 13 Secs","nightLengthDisplay":"10 Hours 03 Mins 47 Secs","moonriseLocal":"14:16","moonsetLocal":"00:56","rahuKala":{"name":"Rāhu Kāla","start":"12:27","end":"14:11","startHours":12.448453826361494,"endHours":14.190577909227454,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:13","end":"08:58","startHours":7.222081577763616,"endHours":8.964205660629574,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:42","end":"12:27","startHours":10.706329743495534,"endHours":12.448453826361494,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:44","end":"09:12","startHours":8.73192244958078,"endHours":9.196488871678369,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:04","end":"06:26","startHours":6.060665522519643,"endHours":6.432318660197714,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:59","end":"12:55","startHours":11.983887404263905,"endHours":12.913020248459082,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:37","end":"04:33","startHours":3.6216918065073003,"endHours":4.550824650702479,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:19","end":"05:29","startHours":4.318541439653684,"endHours":5.479957494897657,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:46","end":"15:42","startHours":14.771285936849438,"endHours":15.700418781044617,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:13","end":"19:37","startHours":19.21695015782533,"endHours":19.61695015782533,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:25","end":"20:00","startHours":19.41695015782533,"endHours":19.997658185447317,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:10","end":"20:55","startHours":19.16695015782533,"endHours":20.91695015782533,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:59","end":"00:55","startHours":23.983887404263903,"endHours":24.913020248459084,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:29","end":"07:13","startHours":5.479957494897657,"endHours":7.222081577763616,"quality":"auspicious"},{"name":"Amṛta","start":"07:13","end":"08:58","startHours":7.222081577763616,"endHours":8.964205660629574,"quality":"auspicious"},{"name":"Kāla","start":"08:58","end":"10:42","startHours":8.964205660629574,"endHours":10.706329743495534,"quality":"inauspicious"},{"name":"Śubha","start":"10:42","end":"12:27","startHours":10.706329743495534,"endHours":12.448453826361494,"quality":"auspicious"},{"name":"Roga","start":"12:27","end":"14:11","startHours":12.448453826361494,"endHours":14.190577909227454,"quality":"inauspicious"},{"name":"Udveg","start":"14:11","end":"15:56","startHours":14.190577909227454,"endHours":15.93270199209341,"quality":"inauspicious"},{"name":"Chala","start":"15:56","end":"17:40","startHours":15.93270199209341,"endHours":17.67482607495937,"quality":"neutral"},{"name":"Labha","start":"17:40","end":"19:25","startHours":17.67482607495937,"endHours":19.41695015782533,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:25","end":"20:40","startHours":19.41695015782533,"endHours":20.67482607495937,"quality":"inauspicious"},{"name":"Chala","start":"20:40","end":"21:56","startHours":20.67482607495937,"endHours":21.932701992093413,"quality":"neutral"},{"name":"Labha","start":"21:56","end":"23:11","startHours":21.932701992093413,"endHours":23.190577909227454,"quality":"auspicious"},{"name":"Amṛta","start":"23:11","end":"00:27","startHours":23.190577909227454,"endHours":24.448453826361494,"quality":"auspicious"},{"name":"Kāla","start":"00:27","end":"01:42","startHours":24.448453826361494,"endHours":25.706329743495534,"quality":"inauspicious"},{"name":"Śubha","start":"01:42","end":"02:58","startHours":25.706329743495534,"endHours":26.964205660629574,"quality":"auspicious"},{"name":"Roga","start":"02:58","end":"04:13","startHours":26.964205660629574,"endHours":28.222081577763618,"quality":"inauspicious"},{"name":"Udveg","start":"04:13","end":"05:29","startHours":28.222081577763618,"endHours":29.479957494897658,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:29","end":"06:29","startHours":5.479957494897657,"endHours":6.479957494897657,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:29","end":"07:29","startHours":6.479957494897657,"endHours":7.479957494897657,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:29","end":"08:29","startHours":7.479957494897657,"endHours":8.479957494897658,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:29","end":"09:29","startHours":8.479957494897658,"endHours":9.479957494897658,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:29","end":"10:29","startHours":9.479957494897658,"endHours":10.479957494897658,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:29","end":"11:29","startHours":10.479957494897658,"endHours":11.479957494897658,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:29","end":"12:29","startHours":11.479957494897658,"endHours":12.479957494897658,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:29","end":"13:29","startHours":12.479957494897658,"endHours":13.479957494897658,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:29","end":"14:29","startHours":13.479957494897658,"endHours":14.479957494897658,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:29","end":"15:29","startHours":14.479957494897658,"endHours":15.479957494897658,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:29","end":"16:29","startHours":15.479957494897658,"endHours":16.479957494897658,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:29","end":"17:29","startHours":16.479957494897658,"endHours":17.479957494897658,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:29","end":"18:29","startHours":17.479957494897658,"endHours":18.479957494897658,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:29","end":"19:29","startHours":18.479957494897658,"endHours":19.479957494897658,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:29","end":"20:29","startHours":19.479957494897658,"endHours":20.479957494897658,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:29","end":"21:29","startHours":20.479957494897658,"endHours":21.479957494897658,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:29","end":"22:29","startHours":21.479957494897658,"endHours":22.479957494897658,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:29","end":"23:29","startHours":22.479957494897658,"endHours":23.479957494897658,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:29","end":"00:29","startHours":23.479957494897658,"endHours":24.479957494897658,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:29","end":"01:29","startHours":24.479957494897658,"endHours":25.479957494897658,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:29","end":"02:29","startHours":25.479957494897658,"endHours":26.479957494897658,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:29","end":"03:29","startHours":26.479957494897658,"endHours":27.479957494897658,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:29","end":"04:29","startHours":27.479957494897658,"endHours":28.479957494897658,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:29","end":"05:29","startHours":28.479957494897658,"endHours":29.479957494897658,"planetary_lord":"Sun"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"South-West","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-20.449798979271193,"eotMinutes":-10.349229581689698,"ayanamsa":24.8734}},"calendars":{"vikram_samvat":2130,"vikram_samvatsara":"Parābhava","saka_samvat":1995,"saka_samvatsara":"Vijaya","bengali_samvat":1480,"malayalam_era":1249,"nanakshahi_year":604,"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":"Makara (Tai)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Daśamī · Vikram 2130 Parābhava · Śaka 1995 Vijaya"},"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":[]},"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 18, 2073 CE · Perth, Australia · Vidhyamitra","description":"January 18, 2073 CE for Perth, Australia: Śukla Daśamī, sūryodaya 05:29, sūryāsta 19:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2073-01-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2073-01-18","sa":"https://sa.vidhyamitra.com/city/perth/2073-01-18","hi":"https://hi.vidhyamitra.com/city/perth/2073-01-18","x-default":"https://vidhyamitra.com/city/perth/2073-01-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T21:41:16.630Z","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":"2026-06-01T21:41:16.630Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T21:41:16.630Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}