{"id":"vidhyamitra:city-day:perth:1940-01-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1940-01-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1940-01-20","date_display":"January 20, 1940 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":1940,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2429648.770833,"kali_year":5041,"ahargana":1841183.2708,"sun":{"sidereal_longitude":275.8865,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":33.8305,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":117.9441,"elapsed_within_tithi_degrees":9.9441},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":33.8305,"elapsed_within_degrees":7.1639},"yoga":{"number":24,"name":"Śukla","sum_longitude":309.717},"karana":{"half_tithi_index":19,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1940,"month":1,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2429648.770833,"ahargana":1841183.2708,"kali_year":5041,"ayanamsa_lahiri":23.0156,"grahas":{"sun":{"sidereal_longitude":275.818707,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":31.76310699999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false,"latitude":-2.1511},"mars":{"sidereal_longitude":348.714207,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":269.10290699999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":341.527507,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":309.61800700000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":2.2877070000000117,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":185.2499,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":5.2499,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":1940,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2429648.770833,"kali_year":5041,"ahargana":1841183.2708,"sun":{"sidereal_longitude":275.8865,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":33.8305,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":117.9441,"elapsed_within_tithi_degrees":9.9441},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":33.8305,"elapsed_within_degrees":7.1639},"yoga":{"number":24,"name":"Śukla","sum_longitude":309.717},"karana":{"half_tithi_index":19,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.151,"elongation":117.944},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.151,"opposition_distance":62.056}},"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":"05:30","sunsetLocal":"19:25","solarNoonLocal":"12:28","dayLengthHours":13.931162930880333,"dayLengthDisplay":"13 Hours 55 Mins 52 Secs","nightLengthDisplay":"10 Hours 04 Mins 08 Secs","moonriseLocal":"14:58","moonsetLocal":"01:25","rahuKala":{"name":"Rāhu Kāla","start":"08:59","end":"10:43","startHours":8.975914322900405,"endHours":10.717309689260446,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:12","end":"15:56","startHours":14.20010042198053,"endHours":15.941495788340571,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:30","end":"07:14","startHours":5.49312359018032,"endHours":7.234518956540362,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:45","end":"09:12","startHours":8.743728274052398,"endHours":9.20810037174841,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:04","end":"06:27","startHours":6.073588712300334,"endHours":6.445086390457143,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:55","startHours":11.994332957924478,"endHours":12.923077153316498,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:38","end":"04:34","startHours":3.635635199396276,"endHours":4.564379394788298,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:20","end":"05:30","startHours":4.332193345940293,"endHours":5.49312359018032,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:43","startHours":14.780565544100543,"endHours":15.709309739492566,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:13","end":"19:37","startHours":19.224286521060655,"endHours":19.624286521060654,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:25","end":"20:00","startHours":19.424286521060655,"endHours":20.00475164318067,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:10","end":"20:55","startHours":19.174286521060655,"endHours":20.924286521060655,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:55","startHours":23.994332957924478,"endHours":24.9230771533165,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:30","end":"07:14","startHours":5.49312359018032,"endHours":7.234518956540362,"quality":"inauspicious"},{"name":"Śubha","start":"07:14","end":"08:59","startHours":7.234518956540362,"endHours":8.975914322900405,"quality":"auspicious"},{"name":"Roga","start":"08:59","end":"10:43","startHours":8.975914322900405,"endHours":10.717309689260446,"quality":"inauspicious"},{"name":"Udveg","start":"10:43","end":"12:28","startHours":10.717309689260446,"endHours":12.458705055620488,"quality":"inauspicious"},{"name":"Chala","start":"12:28","end":"14:12","startHours":12.458705055620488,"endHours":14.20010042198053,"quality":"neutral"},{"name":"Labha","start":"14:12","end":"15:56","startHours":14.20010042198053,"endHours":15.941495788340571,"quality":"auspicious"},{"name":"Amṛta","start":"15:56","end":"17:41","startHours":15.941495788340571,"endHours":17.682891154700613,"quality":"auspicious"},{"name":"Kāla","start":"17:41","end":"19:25","startHours":17.682891154700613,"endHours":19.424286521060655,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:25","end":"20:41","startHours":19.424286521060655,"endHours":20.682891154700613,"quality":"auspicious"},{"name":"Amṛta","start":"20:41","end":"21:56","startHours":20.682891154700613,"endHours":21.94149578834057,"quality":"auspicious"},{"name":"Kāla","start":"21:56","end":"23:12","startHours":21.94149578834057,"endHours":23.20010042198053,"quality":"inauspicious"},{"name":"Śubha","start":"23:12","end":"00:28","startHours":23.20010042198053,"endHours":24.458705055620488,"quality":"auspicious"},{"name":"Roga","start":"00:28","end":"01:43","startHours":24.458705055620488,"endHours":25.717309689260446,"quality":"inauspicious"},{"name":"Udveg","start":"01:43","end":"02:59","startHours":25.717309689260446,"endHours":26.975914322900405,"quality":"inauspicious"},{"name":"Chala","start":"02:59","end":"04:14","startHours":26.975914322900405,"endHours":28.234518956540363,"quality":"neutral"},{"name":"Labha","start":"04:14","end":"05:30","startHours":28.234518956540363,"endHours":29.49312359018032,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:30","end":"06:30","startHours":5.49312359018032,"endHours":6.49312359018032,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:30","end":"07:30","startHours":6.49312359018032,"endHours":7.49312359018032,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:30","end":"08:30","startHours":7.49312359018032,"endHours":8.493123590180321,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:30","end":"09:30","startHours":8.493123590180321,"endHours":9.493123590180321,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:30","end":"10:30","startHours":9.493123590180321,"endHours":10.493123590180321,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:30","end":"11:30","startHours":10.493123590180321,"endHours":11.493123590180321,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:30","end":"12:30","startHours":11.493123590180321,"endHours":12.493123590180321,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:30","end":"13:30","startHours":12.493123590180321,"endHours":13.493123590180321,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:30","end":"14:30","startHours":13.493123590180321,"endHours":14.493123590180321,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:30","end":"15:30","startHours":14.493123590180321,"endHours":15.493123590180321,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:30","end":"16:30","startHours":15.493123590180321,"endHours":16.49312359018032,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:30","end":"17:30","startHours":16.49312359018032,"endHours":17.49312359018032,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:30","end":"18:30","startHours":17.49312359018032,"endHours":18.49312359018032,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:30","end":"19:30","startHours":18.49312359018032,"endHours":19.49312359018032,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:30","end":"20:30","startHours":19.49312359018032,"endHours":20.49312359018032,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:30","end":"21:30","startHours":20.49312359018032,"endHours":21.49312359018032,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:30","end":"22:30","startHours":21.49312359018032,"endHours":22.49312359018032,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:30","end":"23:30","startHours":22.49312359018032,"endHours":23.49312359018032,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:30","end":"00:30","startHours":23.49312359018032,"endHours":24.49312359018032,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:30","end":"01:30","startHours":24.49312359018032,"endHours":25.49312359018032,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:30","end":"02:30","startHours":25.49312359018032,"endHours":26.49312359018032,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:30","end":"03:30","startHours":26.49312359018032,"endHours":27.49312359018032,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:30","end":"04:30","startHours":27.49312359018032,"endHours":28.49312359018032,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:30","end":"05:30","startHours":28.49312359018032,"endHours":29.49312359018032,"planetary_lord":"Mercury"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Sushira","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":-20.390755814733037,"eotMinutes":-10.9643033372293,"ayanamsa":23.0156}},"calendars":{"vikram_samvat":1997,"vikram_samvatsara":"Vijaya","saka_samvat":1862,"saka_samvatsara":"Vikrama","bengali_samvat":1347,"malayalam_era":1116,"nanakshahi_year":471,"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 1997 Vijaya · Śaka 1862 Vikrama"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","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 20, 1940 CE · Perth, Australia · Vidhyamitra","description":"January 20, 1940 CE for Perth, Australia: Śukla Daśamī, sūryodaya 05:30, sūryāsta 19:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1940-01-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1940-01-20","sa":"https://sa.vidhyamitra.com/city/perth/1940-01-20","hi":"https://hi.vidhyamitra.com/city/perth/1940-01-20","x-default":"https://vidhyamitra.com/city/perth/1940-01-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T06:39:28.034Z","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":"2026-06-01T06:39:28.034Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T06:39:28.034Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}