{"id":"vidhyamitra:city-day:perth:1922-01-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1922-01-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1922-01-18","date_display":"January 18, 1922 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":1922,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2423072.770833,"kali_year":5023,"ahargana":1834607.2708,"sun":{"sidereal_longitude":274.5093,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":152.5715,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":238.0622,"elapsed_within_tithi_degrees":10.0622},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":152.5715,"elapsed_within_degrees":5.9048},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":67.0808},"karana":{"half_tithi_index":39,"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":1922,"month":1,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2423072.770833,"ahargana":1834607.2708,"kali_year":5023,"ayanamsa_lahiri":22.764,"grahas":{"sun":{"sidereal_longitude":274.4098590000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":155.860859,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false,"latitude":-1.619},"mars":{"sidereal_longitude":201.24215900000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":288.926659,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":176.61795899999993,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":270.160259,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":165.17895900000008,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":173.678,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":353.678,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":1922,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2423072.770833,"kali_year":5023,"ahargana":1834607.2708,"sun":{"sidereal_longitude":274.5093,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":152.5715,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":238.0622,"elapsed_within_tithi_degrees":10.0622},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":152.5715,"elapsed_within_degrees":5.9048},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":67.0808},"karana":{"half_tithi_index":39,"name":"Taitila"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.619,"elongation":121.938},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.619,"opposition_distance":58.062}},"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":13.963936090859306,"dayLengthDisplay":"13 Hours 57 Mins 50 Secs","nightLengthDisplay":"10 Hours 02 Mins 10 Secs","moonriseLocal":"22:31","moonsetLocal":"10:34","rahuKala":{"name":"Rāhu Kāla","start":"12:27","end":"14:12","startHours":12.448453826361494,"endHours":14.193945837718907,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:13","end":"08:57","startHours":7.211977792289254,"endHours":8.957469803646667,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:42","end":"12:27","startHours":10.70296181500408,"endHours":12.448453826361494,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:43","end":"09:11","startHours":8.724737535465678,"endHours":9.190202071827656,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:03","end":"06:25","startHours":6.048316451384312,"endHours":6.4206880804738935,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:59","end":"12:55","startHours":11.982989289999518,"endHours":12.91391836272347,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:36","end":"04:32","startHours":3.604627635483933,"endHours":4.535556708207887,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:18","end":"05:28","startHours":4.302824440026899,"endHours":5.466485780931841,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:42","startHours":14.775776508171377,"endHours":15.706705580895331,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:14","end":"19:38","startHours":19.230421871791147,"endHours":19.630421871791146,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:26","end":"20:01","startHours":19.430421871791147,"endHours":20.01225254224362,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:11","end":"20:56","startHours":19.180421871791147,"endHours":20.930421871791147,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:59","end":"00:55","startHours":23.982989289999516,"endHours":24.91391836272347,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:28","end":"07:13","startHours":5.466485780931841,"endHours":7.211977792289254,"quality":"auspicious"},{"name":"Amṛta","start":"07:13","end":"08:57","startHours":7.211977792289254,"endHours":8.957469803646667,"quality":"auspicious"},{"name":"Kāla","start":"08:57","end":"10:42","startHours":8.957469803646667,"endHours":10.70296181500408,"quality":"inauspicious"},{"name":"Śubha","start":"10:42","end":"12:27","startHours":10.70296181500408,"endHours":12.448453826361494,"quality":"auspicious"},{"name":"Roga","start":"12:27","end":"14:12","startHours":12.448453826361494,"endHours":14.193945837718907,"quality":"inauspicious"},{"name":"Udveg","start":"14:12","end":"15:56","startHours":14.193945837718907,"endHours":15.93943784907632,"quality":"inauspicious"},{"name":"Chala","start":"15:56","end":"17:41","startHours":15.93943784907632,"endHours":17.684929860433733,"quality":"neutral"},{"name":"Labha","start":"17:41","end":"19:26","startHours":17.684929860433733,"endHours":19.430421871791147,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:26","end":"20:41","startHours":19.430421871791147,"endHours":20.684929860433733,"quality":"inauspicious"},{"name":"Chala","start":"20:41","end":"21:56","startHours":20.684929860433733,"endHours":21.93943784907632,"quality":"neutral"},{"name":"Labha","start":"21:56","end":"23:12","startHours":21.93943784907632,"endHours":23.193945837718907,"quality":"auspicious"},{"name":"Amṛta","start":"23:12","end":"00:27","startHours":23.193945837718907,"endHours":24.448453826361494,"quality":"auspicious"},{"name":"Kāla","start":"00:27","end":"01:42","startHours":24.448453826361494,"endHours":25.70296181500408,"quality":"inauspicious"},{"name":"Śubha","start":"01:42","end":"02:57","startHours":25.70296181500408,"endHours":26.957469803646667,"quality":"auspicious"},{"name":"Roga","start":"02:57","end":"04:13","startHours":26.957469803646667,"endHours":28.211977792289254,"quality":"inauspicious"},{"name":"Udveg","start":"04:13","end":"05:28","startHours":28.211977792289254,"endHours":29.46648578093184,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:28","end":"06:28","startHours":5.466485780931841,"endHours":6.466485780931841,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:28","end":"07:28","startHours":6.466485780931841,"endHours":7.466485780931841,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:28","end":"08:28","startHours":7.466485780931841,"endHours":8.46648578093184,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:28","end":"09:28","startHours":8.46648578093184,"endHours":9.46648578093184,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:28","end":"10:28","startHours":9.46648578093184,"endHours":10.46648578093184,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:28","end":"11:28","startHours":10.46648578093184,"endHours":11.46648578093184,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:28","end":"12:28","startHours":11.46648578093184,"endHours":12.46648578093184,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:28","end":"13:28","startHours":12.46648578093184,"endHours":13.46648578093184,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:28","end":"14:28","startHours":13.46648578093184,"endHours":14.46648578093184,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:28","end":"15:28","startHours":14.46648578093184,"endHours":15.46648578093184,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:28","end":"16:28","startHours":15.46648578093184,"endHours":16.46648578093184,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:28","end":"17:28","startHours":16.46648578093184,"endHours":17.46648578093184,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:28","end":"18:28","startHours":17.46648578093184,"endHours":18.46648578093184,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:28","end":"19:28","startHours":18.46648578093184,"endHours":19.46648578093184,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:28","end":"20:28","startHours":19.46648578093184,"endHours":20.46648578093184,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:28","end":"21:28","startHours":20.46648578093184,"endHours":21.46648578093184,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:28","end":"22:28","startHours":21.46648578093184,"endHours":22.46648578093184,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:28","end":"23:28","startHours":22.46648578093184,"endHours":23.46648578093184,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:28","end":"00:28","startHours":23.46648578093184,"endHours":24.46648578093184,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:28","end":"01:28","startHours":24.46648578093184,"endHours":25.46648578093184,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:28","end":"02:28","startHours":25.46648578093184,"endHours":26.46648578093184,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:28","end":"03:28","startHours":26.46648578093184,"endHours":27.46648578093184,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:28","end":"04:28","startHours":27.46648578093184,"endHours":28.46648578093184,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:28","end":"05:28","startHours":28.46648578093184,"endHours":29.46648578093184,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"South-West","anandadiYoga":{"name":"Mātaṇga","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":-20.72191857098458,"eotMinutes":-10.349229581689698,"ayanamsa":22.764}},"calendars":{"vikram_samvat":1979,"vikram_samvatsara":"Yuva","saka_samvat":1844,"saka_samvatsara":"Dundubhi","bengali_samvat":1329,"malayalam_era":1098,"nanakshahi_year":453,"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 Pañcamī · Vikram 1979 Yuva · Śaka 1844 Dundubhi"},"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, 1922 CE · Perth, Australia · Vidhyamitra","description":"January 18, 1922 CE for Perth, Australia: Kṛṣṇa Pañcamī, sūryodaya 05:28, sūryāsta 19:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1922-01-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1922-01-18","sa":"https://sa.vidhyamitra.com/city/perth/1922-01-18","hi":"https://hi.vidhyamitra.com/city/perth/1922-01-18","x-default":"https://vidhyamitra.com/city/perth/1922-01-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T19:47:52.951Z","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":"2026-06-01T19:47:52.951Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T19:47:52.951Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}