{"id":"vidhyamitra:city-day:perth:1946-01-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1946-01-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1946-01-18","date_display":"January 18, 1946 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":1946,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2431838.770833,"kali_year":5047,"ahargana":1843373.2708,"sun":{"sidereal_longitude":274.2937,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":101.5013,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":187.2077,"elapsed_within_tithi_degrees":7.2077},"nakshatra":{"number":8,"name":"Puṣya","pada":3,"moon_longitude":101.5013,"elapsed_within_degrees":8.168},"yoga":{"number":2,"name":"Prīti","sum_longitude":15.795},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1946,"month":1,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2431838.770833,"ahargana":1843373.2708,"kali_year":5047,"ayanamsa_lahiri":23.0993,"grahas":{"sun":{"sidereal_longitude":274.251933,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":99.78833300000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false,"latitude":2.402},"mars":{"sidereal_longitude":89.332133,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":true},"mercury":{"sidereal_longitude":260.05023299999993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":184.47913300000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":271.523633,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":88.19953299999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":69.2132,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":249.2132,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","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":"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":1946,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2431838.770833,"kali_year":5047,"ahargana":1843373.2708,"sun":{"sidereal_longitude":274.2937,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":101.5013,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":187.2077,"elapsed_within_tithi_degrees":7.2077},"nakshatra":{"number":8,"name":"Puṣya","pada":3,"moon_longitude":101.5013,"elapsed_within_degrees":8.168},"yoga":{"number":2,"name":"Prīti","sum_longitude":15.795},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.402,"elongation":172.792},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.402,"opposition_distance":7.208}},"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":"05:28","sunsetLocal":"19:26","solarNoonLocal":"12:27","dayLengthHours":13.96050861094438,"dayLengthDisplay":"13 Hours 57 Mins 38 Secs","nightLengthDisplay":"10 Hours 02 Mins 22 Secs","moonriseLocal":"19:37","moonsetLocal":"06:01","rahuKala":{"name":"Rāhu Kāla","start":"10:42","end":"12:27","startHours":10.703390249993445,"endHours":12.448453826361494,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:56","end":"17:41","startHours":15.938580979097587,"endHours":17.683644555465637,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:13","end":"08:57","startHours":7.21326309725735,"endHours":8.958326673625397,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:44","end":"09:11","startHours":8.725651530109658,"endHours":9.191001817141137,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:03","end":"06:25","startHours":6.049887379678652,"endHours":6.422167609303836,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:59","end":"12:55","startHours":11.983103539330015,"endHours":12.913804113392972,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:36","end":"04:32","startHours":3.606798372763385,"endHours":4.537498946826344,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:18","end":"05:28","startHours":4.3048238033106045,"endHours":5.468199520889303,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:42","startHours":14.775205261518888,"endHours":15.705905835581847,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:14","end":"19:38","startHours":19.228708131833685,"endHours":19.628708131833683,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:26","end":"20:01","startHours":19.428708131833684,"endHours":20.01039599062303,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:11","end":"20:56","startHours":19.178708131833684,"endHours":20.928708131833684,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:59","end":"00:55","startHours":23.983103539330013,"endHours":24.913804113392974,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:28","end":"07:13","startHours":5.468199520889303,"endHours":7.21326309725735,"quality":"neutral"},{"name":"Labha","start":"07:13","end":"08:57","startHours":7.21326309725735,"endHours":8.958326673625397,"quality":"auspicious"},{"name":"Amṛta","start":"08:57","end":"10:42","startHours":8.958326673625397,"endHours":10.703390249993445,"quality":"auspicious"},{"name":"Kāla","start":"10:42","end":"12:27","startHours":10.703390249993445,"endHours":12.448453826361494,"quality":"inauspicious"},{"name":"Śubha","start":"12:27","end":"14:12","startHours":12.448453826361494,"endHours":14.19351740272954,"quality":"auspicious"},{"name":"Roga","start":"14:12","end":"15:56","startHours":14.19351740272954,"endHours":15.938580979097587,"quality":"inauspicious"},{"name":"Udveg","start":"15:56","end":"17:41","startHours":15.938580979097587,"endHours":17.683644555465637,"quality":"inauspicious"},{"name":"Chala","start":"17:41","end":"19:26","startHours":17.683644555465637,"endHours":19.428708131833684,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:26","end":"20:41","startHours":19.428708131833684,"endHours":20.683644555465637,"quality":"inauspicious"},{"name":"Udveg","start":"20:41","end":"21:56","startHours":20.683644555465637,"endHours":21.938580979097587,"quality":"inauspicious"},{"name":"Chala","start":"21:56","end":"23:12","startHours":21.938580979097587,"endHours":23.19351740272954,"quality":"neutral"},{"name":"Labha","start":"23:12","end":"00:27","startHours":23.19351740272954,"endHours":24.448453826361494,"quality":"auspicious"},{"name":"Amṛta","start":"00:27","end":"01:42","startHours":24.448453826361494,"endHours":25.703390249993447,"quality":"auspicious"},{"name":"Kāla","start":"01:42","end":"02:57","startHours":25.703390249993447,"endHours":26.9583266736254,"quality":"inauspicious"},{"name":"Śubha","start":"02:57","end":"04:13","startHours":26.9583266736254,"endHours":28.21326309725735,"quality":"auspicious"},{"name":"Roga","start":"04:13","end":"05:28","startHours":28.21326309725735,"endHours":29.468199520889303,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:28","end":"06:28","startHours":5.468199520889303,"endHours":6.468199520889303,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:28","end":"07:28","startHours":6.468199520889303,"endHours":7.468199520889303,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:28","end":"08:28","startHours":7.468199520889303,"endHours":8.468199520889303,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:28","end":"09:28","startHours":8.468199520889303,"endHours":9.468199520889303,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:28","end":"10:28","startHours":9.468199520889303,"endHours":10.468199520889303,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:28","end":"11:28","startHours":10.468199520889303,"endHours":11.468199520889303,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:28","end":"12:28","startHours":11.468199520889303,"endHours":12.468199520889303,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:28","end":"13:28","startHours":12.468199520889303,"endHours":13.468199520889303,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:28","end":"14:28","startHours":13.468199520889303,"endHours":14.468199520889303,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:28","end":"15:28","startHours":14.468199520889303,"endHours":15.468199520889303,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:28","end":"16:28","startHours":15.468199520889303,"endHours":16.468199520889303,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:28","end":"17:28","startHours":16.468199520889303,"endHours":17.468199520889303,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:28","end":"18:28","startHours":17.468199520889303,"endHours":18.468199520889303,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:28","end":"19:28","startHours":18.468199520889303,"endHours":19.468199520889303,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:28","end":"20:28","startHours":19.468199520889303,"endHours":20.468199520889303,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:28","end":"21:28","startHours":20.468199520889303,"endHours":21.468199520889303,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:28","end":"22:28","startHours":21.468199520889303,"endHours":22.468199520889303,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:28","end":"23:28","startHours":22.468199520889303,"endHours":23.468199520889303,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:28","end":"00:28","startHours":23.468199520889303,"endHours":24.468199520889303,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:28","end":"01:28","startHours":24.468199520889303,"endHours":25.468199520889303,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:28","end":"02:28","startHours":25.468199520889303,"endHours":26.468199520889303,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:28","end":"03:28","startHours":26.468199520889303,"endHours":27.468199520889303,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:28","end":"04:28","startHours":27.468199520889303,"endHours":28.468199520889303,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:28","end":"05:28","startHours":28.468199520889303,"endHours":29.468199520889303,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"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":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"South-East","anandadiYoga":{"name":"Dhātṛ","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":-20.6873718506346,"eotMinutes":-10.349229581689698,"ayanamsa":23.0993}},"calendars":{"vikram_samvat":2003,"vikram_samvatsara":"Vikāri","saka_samvat":1868,"saka_samvatsara":"Vyaya","bengali_samvat":1353,"malayalam_era":1122,"nanakshahi_year":477,"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":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Pratipada · Vikram 2003 Vikāri · Śaka 1868 Vyaya"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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, 1946 CE · Perth, Australia · Vidhyamitra","description":"January 18, 1946 CE for Perth, Australia: Kṛṣṇa Pratipada, sūryodaya 05:28, sūryāsta 19:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1946-01-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1946-01-18","sa":"https://sa.vidhyamitra.com/city/perth/1946-01-18","hi":"https://hi.vidhyamitra.com/city/perth/1946-01-18","x-default":"https://vidhyamitra.com/city/perth/1946-01-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T01:42:03.948Z","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":"2026-06-01T01:42:03.948Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T01:42:03.948Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}