{"id":"vidhyamitra:city-day:perth:1941-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1941-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1941-02-01","date_display":"February 1, 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":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2430026.770833,"kali_year":5042,"ahargana":1841561.2708,"sun":{"sidereal_longitude":288.9306,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":343.7977,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":54.8671,"elapsed_within_tithi_degrees":6.8671},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":343.7977,"elapsed_within_degrees":10.4644},"yoga":{"number":21,"name":"Siddha","sum_longitude":272.7283},"karana":{"half_tithi_index":9,"name":"Bālava"},"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":1941,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2430026.770833,"ahargana":1841561.2708,"kali_year":5042,"ayanamsa_lahiri":23.03,"grahas":{"sun":{"sidereal_longitude":288.77236500000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":341.405465,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false,"latitude":0.1117},"mars":{"sidereal_longitude":236.21616500000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":303.69716500000004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":15.029364999999984,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":270.477165,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":15.708964999999978,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":165.2217,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":345.2217,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"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":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2430026.770833,"kali_year":5042,"ahargana":1841561.2708,"sun":{"sidereal_longitude":288.9306,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":343.7977,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":54.8671,"elapsed_within_tithi_degrees":6.8671},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":343.7977,"elapsed_within_degrees":10.4644},"yoga":{"number":21,"name":"Siddha","sum_longitude":272.7283},"karana":{"half_tithi_index":9,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.112,"elongation":54.867},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.112,"opposition_distance":125.133}},"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":"05:41","sunsetLocal":"19:19","solarNoonLocal":"12:30","dayLengthHours":13.628482416061468,"dayLengthDisplay":"13 Hours 37 Mins 43 Secs","nightLengthDisplay":"10 Hours 22 Mins 17 Secs","moonriseLocal":"10:02","moonsetLocal":"21:59","rahuKala":{"name":"Rāhu Kāla","start":"09:06","end":"10:48","startHours":9.097001864607893,"endHours":10.800562166615578,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:12","end":"15:55","startHours":14.207682770630944,"endHours":15.911243072638628,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:41","end":"07:24","startHours":5.689881260592527,"endHours":7.39344156260021,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:19","startHours":8.86986049100687,"endHours":9.324143238208919,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:15","end":"06:37","startHours":6.257734694595088,"endHours":6.621160892356728,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:58","startHours":12.049839721421211,"endHours":12.958405215825309,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:52","end":"04:47","startHours":3.872750271784331,"endHours":4.781315766188429,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:33","end":"05:41","startHours":4.554174392587404,"endHours":5.689881260592527,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:41","startHours":14.775536204633505,"endHours":15.684101699037603,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:07","end":"19:31","startHours":19.118363676653995,"endHours":19.518363676653994,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:19","end":"19:53","startHours":19.318363676653995,"endHours":19.886217110656556,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:04","end":"20:49","startHours":19.068363676653995,"endHours":20.818363676653995,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:58","startHours":24.049839721421208,"endHours":24.95840521582531,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:41","end":"07:24","startHours":5.689881260592527,"endHours":7.39344156260021,"quality":"inauspicious"},{"name":"Śubha","start":"07:24","end":"09:06","startHours":7.39344156260021,"endHours":9.097001864607893,"quality":"auspicious"},{"name":"Roga","start":"09:06","end":"10:48","startHours":9.097001864607893,"endHours":10.800562166615578,"quality":"inauspicious"},{"name":"Udveg","start":"10:48","end":"12:30","startHours":10.800562166615578,"endHours":12.504122468623262,"quality":"inauspicious"},{"name":"Chala","start":"12:30","end":"14:12","startHours":12.504122468623262,"endHours":14.207682770630944,"quality":"neutral"},{"name":"Labha","start":"14:12","end":"15:55","startHours":14.207682770630944,"endHours":15.911243072638628,"quality":"auspicious"},{"name":"Amṛta","start":"15:55","end":"17:37","startHours":15.911243072638628,"endHours":17.61480337464631,"quality":"auspicious"},{"name":"Kāla","start":"17:37","end":"19:19","startHours":17.61480337464631,"endHours":19.318363676653995,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:19","end":"20:37","startHours":19.318363676653995,"endHours":20.61480337464631,"quality":"auspicious"},{"name":"Amṛta","start":"20:37","end":"21:55","startHours":20.61480337464631,"endHours":21.911243072638626,"quality":"auspicious"},{"name":"Kāla","start":"21:55","end":"23:12","startHours":21.911243072638626,"endHours":23.207682770630946,"quality":"inauspicious"},{"name":"Śubha","start":"23:12","end":"00:30","startHours":23.207682770630946,"endHours":24.50412246862326,"quality":"auspicious"},{"name":"Roga","start":"00:30","end":"01:48","startHours":24.50412246862326,"endHours":25.800562166615578,"quality":"inauspicious"},{"name":"Udveg","start":"01:48","end":"03:06","startHours":25.800562166615578,"endHours":27.097001864607893,"quality":"inauspicious"},{"name":"Chala","start":"03:06","end":"04:24","startHours":27.097001864607893,"endHours":28.39344156260021,"quality":"neutral"},{"name":"Labha","start":"04:24","end":"05:41","startHours":28.39344156260021,"endHours":29.68988126059253,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:41","end":"06:41","startHours":5.689881260592527,"endHours":6.689881260592527,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:41","end":"07:41","startHours":6.689881260592527,"endHours":7.689881260592527,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:41","end":"08:41","startHours":7.689881260592527,"endHours":8.689881260592527,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:41","end":"09:41","startHours":8.689881260592527,"endHours":9.689881260592527,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:41","end":"10:41","startHours":9.689881260592527,"endHours":10.689881260592527,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:41","end":"11:41","startHours":10.689881260592527,"endHours":11.689881260592527,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:41","end":"12:41","startHours":11.689881260592527,"endHours":12.689881260592527,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:41","end":"13:41","startHours":12.689881260592527,"endHours":13.689881260592527,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:41","end":"14:41","startHours":13.689881260592527,"endHours":14.689881260592527,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:41","end":"15:41","startHours":14.689881260592527,"endHours":15.689881260592527,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:41","end":"16:41","startHours":15.689881260592527,"endHours":16.68988126059253,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:41","end":"17:41","startHours":16.68988126059253,"endHours":17.68988126059253,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:41","end":"18:41","startHours":17.68988126059253,"endHours":18.68988126059253,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:41","end":"19:41","startHours":18.68988126059253,"endHours":19.68988126059253,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:41","end":"20:41","startHours":19.68988126059253,"endHours":20.68988126059253,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:41","end":"21:41","startHours":20.68988126059253,"endHours":21.68988126059253,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:41","end":"22:41","startHours":21.68988126059253,"endHours":22.68988126059253,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:41","end":"23:41","startHours":22.68988126059253,"endHours":23.68988126059253,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:41","end":"00:41","startHours":23.68988126059253,"endHours":24.68988126059253,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:41","end":"01:41","startHours":24.68988126059253,"endHours":25.68988126059253,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:41","end":"02:41","startHours":25.68988126059253,"endHours":26.68988126059253,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:41","end":"03:41","startHours":26.68988126059253,"endHours":27.68988126059253,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:41","end":"04:41","startHours":27.68988126059253,"endHours":28.68988126059253,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:41","end":"05:41","startHours":28.68988126059253,"endHours":29.68988126059253,"planetary_lord":"Mercury"}],"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":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-17.246849500238046,"eotMinutes":-13.689348117395623,"ayanamsa":23.03}},"calendars":{"vikram_samvat":1998,"vikram_samvatsara":"Jaya","saka_samvat":1863,"saka_samvatsara":"Vṛṣa","bengali_samvat":1348,"malayalam_era":1117,"nanakshahi_year":472,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","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 Śukla Pañcamī · Vikram 1998 Jaya · Śaka 1863 Vṛṣa"},"festivals":[{"id":"sarasvati-jayanti","name":"Sarasvatī Jayantī (Vasanta Pañchamī)","name_sanskrit":"सरस्वती जयन्ती / वसन्त पञ्चमी","tradition":"Pan-Hindu","associated_deity":"Sarasvatī (Vāk-tattva)","significance":"Manifestation of Devī Sarasvatī; vidyā-ārambha day; vasanta-ṛtu begins.","vrata":true,"detection":{"tithi_number":5,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2,"sources":["Skanda Purāṇa","Devī Bhāgavata"]}],"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":[]},"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 February 1, 1941 CE · Perth, Australia · Vidhyamitra","description":"February 1, 1941 CE for Perth, Australia: Śukla Pañcamī, sūryodaya 05:41, sūryāsta 19:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1941-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1941-02-01","sa":"https://sa.vidhyamitra.com/city/perth/1941-02-01","hi":"https://hi.vidhyamitra.com/city/perth/1941-02-01","x-default":"https://vidhyamitra.com/city/perth/1941-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T22:42:45.827Z","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":"2026-05-30T22:42:45.827Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T22:42:45.827Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}