{"id":"vidhyamitra:city-day:perth:1941-08-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1941-08-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1941-08-13","date_display":"August 13, 1941 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":1941,"month":8,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2430219.770833,"kali_year":5043,"ahargana":1841754.2708,"sun":{"sidereal_longitude":116.3943,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":5.9314,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":249.5371,"elapsed_within_tithi_degrees":9.5371},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":5.9314,"elapsed_within_degrees":5.9314},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":122.3257},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"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":1941,"month":8,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2430219.770833,"ahargana":1841754.2708,"kali_year":5043,"ayanamsa_lahiri":23.0374,"grahas":{"sun":{"sidereal_longitude":116.858091,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":4.6379909999999995,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false,"latitude":-2.3116},"mars":{"sidereal_longitude":357.403191,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":111.30199099999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":53.981291,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":148.19049099999995,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":35.17539099999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":154.9956,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":334.9956,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"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":1941,"month":8,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2430219.770833,"kali_year":5043,"ahargana":1841754.2708,"sun":{"sidereal_longitude":116.3943,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":5.9314,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":249.5371,"elapsed_within_tithi_degrees":9.5371},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":5.9314,"elapsed_within_degrees":5.9314},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":122.3257},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.312,"elongation":110.463},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.312,"opposition_distance":69.537}},"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":"06:55","sunsetLocal":"17:47","solarNoonLocal":"12:21","dayLengthHours":10.868404019675324,"dayLengthDisplay":"10 Hours 52 Mins 06 Secs","nightLengthDisplay":"13 Hours 07 Mins 54 Secs","moonriseLocal":"23:16","moonsetLocal":"10:28","rahuKala":{"name":"Rāhu Kāla","start":"12:21","end":"13:43","startHours":12.35199201230359,"endHours":13.710542514763006,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:17","end":"09:38","startHours":8.276340504925344,"endHours":9.63489100738476,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:00","end":"12:21","startHours":10.993441509844175,"endHours":12.35199201230359,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:27","end":"09:49","startHours":9.45375094039017,"endHours":9.816031074379348,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:22","end":"07:40","startHours":7.3706401699524,"endHours":7.660464277143742,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:59","end":"12:43","startHours":11.989711878314413,"endHours":12.714272146292767,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:28","end":"06:12","startHours":5.468669466509218,"endHours":6.1932297344875735,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:01","end":"06:55","startHours":6.012089667492984,"endHours":6.917790002465928,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:53","startHours":14.163392682249476,"endHours":14.887952950227831,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:35","end":"17:59","startHours":17.586194022141253,"endHours":17.98619402214125,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:47","end":"18:14","startHours":17.786194022141252,"endHours":18.239044189627723,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:32","end":"19:17","startHours":17.536194022141252,"endHours":19.286194022141252,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:59","end":"00:43","startHours":23.989711878314413,"endHours":24.714272146292767,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:55","end":"08:17","startHours":6.917790002465928,"endHours":8.276340504925344,"quality":"auspicious"},{"name":"Amṛta","start":"08:17","end":"09:38","startHours":8.276340504925344,"endHours":9.63489100738476,"quality":"auspicious"},{"name":"Kāla","start":"09:38","end":"11:00","startHours":9.63489100738476,"endHours":10.993441509844175,"quality":"inauspicious"},{"name":"Śubha","start":"11:00","end":"12:21","startHours":10.993441509844175,"endHours":12.35199201230359,"quality":"auspicious"},{"name":"Roga","start":"12:21","end":"13:43","startHours":12.35199201230359,"endHours":13.710542514763006,"quality":"inauspicious"},{"name":"Udveg","start":"13:43","end":"15:04","startHours":13.710542514763006,"endHours":15.069093017222421,"quality":"inauspicious"},{"name":"Chala","start":"15:04","end":"16:26","startHours":15.069093017222421,"endHours":16.427643519681837,"quality":"neutral"},{"name":"Labha","start":"16:26","end":"17:47","startHours":16.427643519681837,"endHours":17.786194022141252,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:47","end":"19:26","startHours":17.786194022141252,"endHours":19.427643519681837,"quality":"inauspicious"},{"name":"Chala","start":"19:26","end":"21:04","startHours":19.427643519681837,"endHours":21.06909301722242,"quality":"neutral"},{"name":"Labha","start":"21:04","end":"22:43","startHours":21.06909301722242,"endHours":22.710542514763006,"quality":"auspicious"},{"name":"Amṛta","start":"22:43","end":"00:21","startHours":22.710542514763006,"endHours":24.35199201230359,"quality":"auspicious"},{"name":"Kāla","start":"00:21","end":"02:00","startHours":24.35199201230359,"endHours":25.993441509844175,"quality":"inauspicious"},{"name":"Śubha","start":"02:00","end":"03:38","startHours":25.993441509844175,"endHours":27.63489100738476,"quality":"auspicious"},{"name":"Roga","start":"03:38","end":"05:17","startHours":27.63489100738476,"endHours":29.276340504925344,"quality":"inauspicious"},{"name":"Udveg","start":"05:17","end":"06:55","startHours":29.276340504925344,"endHours":30.917790002465928,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:55","end":"07:55","startHours":6.917790002465928,"endHours":7.917790002465928,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:55","end":"08:55","startHours":7.917790002465928,"endHours":8.917790002465928,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:55","end":"09:55","startHours":8.917790002465928,"endHours":9.917790002465928,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:55","end":"10:55","startHours":9.917790002465928,"endHours":10.917790002465928,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:55","end":"11:55","startHours":10.917790002465928,"endHours":11.917790002465928,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:55","end":"12:55","startHours":11.917790002465928,"endHours":12.917790002465928,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:55","end":"13:55","startHours":12.917790002465928,"endHours":13.917790002465928,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:55","end":"14:55","startHours":13.917790002465928,"endHours":14.917790002465928,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:55","end":"15:55","startHours":14.917790002465928,"endHours":15.917790002465928,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:55","end":"16:55","startHours":15.917790002465928,"endHours":16.917790002465928,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:55","end":"17:55","startHours":16.917790002465928,"endHours":17.917790002465928,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:55","end":"18:55","startHours":17.917790002465928,"endHours":18.917790002465928,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:55","end":"19:55","startHours":18.917790002465928,"endHours":19.917790002465928,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:55","end":"20:55","startHours":19.917790002465928,"endHours":20.917790002465928,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:55","end":"21:55","startHours":20.917790002465928,"endHours":21.917790002465928,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:55","end":"22:55","startHours":21.917790002465928,"endHours":22.917790002465928,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:55","end":"23:55","startHours":22.917790002465928,"endHours":23.917790002465928,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:55","end":"00:55","startHours":23.917790002465928,"endHours":24.917790002465928,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:55","end":"01:55","startHours":24.917790002465928,"endHours":25.917790002465928,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:55","end":"02:55","startHours":25.917790002465928,"endHours":26.917790002465928,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:55","end":"03:55","startHours":26.917790002465928,"endHours":27.917790002465928,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:55","end":"04:55","startHours":27.917790002465928,"endHours":28.917790002465928,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:55","end":"05:55","startHours":28.917790002465928,"endHours":29.917790002465928,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:55","end":"06:55","startHours":29.917790002465928,"endHours":30.917790002465928,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","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":"Mānasa","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":14.845462200526782,"eotMinutes":-4.561520738215509,"ayanamsa":23.0374}},"calendars":{"vikram_samvat":1998,"vikram_samvatsara":"Jaya","saka_samvat":1863,"saka_samvatsara":"Vṛṣa","bengali_samvat":1348,"malayalam_era":1117,"nanakshahi_year":472,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Ṣaṣṭhī · Vikram 1998 Jaya · Śaka 1863 Vṛṣa"},"festivals":[{"id":"balarama-jayanti","name":"Balarāma Jayantī (Hala-Ṣaṣṭhī)","name_sanskrit":"बलराम जयन्ती","tradition":"Vaishnava","associated_deity":"Balarāma (Krishna's elder brother; ādi-śeṣa)","significance":"Birth of Bala-deva, Krishna's elder brother and Saṅkarṣaṇa.","vrata":true,"detection":{"tithi_number":21,"tithi_paksha":"Kṛṣṇa","lunar_month":"Bhādrapada"},"precedence":3,"sources":["Bhāgavata 10.2-3"]}],"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":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 August 13, 1941 CE · Perth, Australia · Vidhyamitra","description":"August 13, 1941 CE for Perth, Australia: Kṛṣṇa Ṣaṣṭhī, sūryodaya 06:55, sūryāsta 17:47.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1941-08-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1941-08-13","sa":"https://sa.vidhyamitra.com/city/perth/1941-08-13","hi":"https://hi.vidhyamitra.com/city/perth/1941-08-13","x-default":"https://vidhyamitra.com/city/perth/1941-08-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T17:43:55.561Z","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":"2026-05-31T17:43:55.561Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T17:43:55.561Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}