{"id":"vidhyamitra:city-day:perth:1909-03-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1909-03-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1909-03-13","date_display":"March 13, 1909 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":1909,"month":3,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2418378.770833,"kali_year":5010,"ahargana":1829913.2708,"sun":{"sidereal_longitude":329.6394,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":218.63,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":248.9905,"elapsed_within_tithi_degrees":8.9905},"nakshatra":{"number":17,"name":"Anurādhā","pada":2,"moon_longitude":218.63,"elapsed_within_degrees":5.2966},"yoga":{"number":15,"name":"Vajra","sum_longitude":188.2694},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"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":1909,"month":3,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2418378.770833,"ahargana":1829913.2708,"kali_year":5010,"ayanamsa_lahiri":22.5845,"grahas":{"sun":{"sidereal_longitude":329.252604,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":214.565604,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false,"latitude":1.8114},"mars":{"sidereal_longitude":260.07230400000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":303.35840400000006,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":136.519904,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":318.630304,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":348.932904,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":62.3888,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":242.3888,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","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":1909,"month":3,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2418378.770833,"kali_year":5010,"ahargana":1829913.2708,"sun":{"sidereal_longitude":329.6394,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":218.63,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":248.9905,"elapsed_within_tithi_degrees":8.9905},"nakshatra":{"number":17,"name":"Anurādhā","pada":2,"moon_longitude":218.63,"elapsed_within_degrees":5.2966},"yoga":{"number":15,"name":"Vajra","sum_longitude":188.2694},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.811,"elongation":111.009},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.811,"opposition_distance":68.991}},"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":"06:15","sunsetLocal":"18:39","solarNoonLocal":"12:27","dayLengthHours":12.40078069420069,"dayLengthDisplay":"12 Hours 24 Mins 03 Secs","nightLengthDisplay":"11 Hours 35 Mins 57 Secs","moonriseLocal":"21:54","moonsetLocal":"11:42","rahuKala":{"name":"Rāhu Kāla","start":"09:21","end":"10:54","startHours":9.346070158596639,"endHours":10.896167745371724,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:00","end":"15:33","startHours":13.996362918921896,"endHours":15.546460505696984,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:15","end":"07:48","startHours":6.245874985046465,"endHours":7.795972571821552,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:08","end":"09:33","startHours":9.13939048035996,"endHours":9.552749836833316,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:46","end":"07:06","startHours":6.762574180638161,"endHours":7.093261665816846,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:52","startHours":12.032905975673456,"endHours":12.859624688620167,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:36","end":"05:25","startHours":4.59243755915304,"endHours":5.419156272099753,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:13","end":"06:15","startHours":5.212476593863075,"endHours":6.245874985046465,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:20","startHours":14.513062114513591,"endHours":15.339780827460304,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:27","end":"18:51","startHours":18.446655679247158,"endHours":18.846655679247156,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:39","end":"19:10","startHours":18.646655679247157,"endHours":19.163354874838852,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:24","end":"20:09","startHours":18.396655679247157,"endHours":20.146655679247157,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:52","startHours":24.032905975673454,"endHours":24.85962468862017,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:15","end":"07:48","startHours":6.245874985046465,"endHours":7.795972571821552,"quality":"inauspicious"},{"name":"Śubha","start":"07:48","end":"09:21","startHours":7.795972571821552,"endHours":9.346070158596639,"quality":"auspicious"},{"name":"Roga","start":"09:21","end":"10:54","startHours":9.346070158596639,"endHours":10.896167745371724,"quality":"inauspicious"},{"name":"Udveg","start":"10:54","end":"12:27","startHours":10.896167745371724,"endHours":12.446265332146812,"quality":"inauspicious"},{"name":"Chala","start":"12:27","end":"14:00","startHours":12.446265332146812,"endHours":13.996362918921896,"quality":"neutral"},{"name":"Labha","start":"14:00","end":"15:33","startHours":13.996362918921896,"endHours":15.546460505696984,"quality":"auspicious"},{"name":"Amṛta","start":"15:33","end":"17:06","startHours":15.546460505696984,"endHours":17.09655809247207,"quality":"auspicious"},{"name":"Kāla","start":"17:06","end":"18:39","startHours":17.09655809247207,"endHours":18.646655679247157,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:39","end":"20:06","startHours":18.646655679247157,"endHours":20.096558092472073,"quality":"auspicious"},{"name":"Amṛta","start":"20:06","end":"21:33","startHours":20.096558092472073,"endHours":21.546460505696984,"quality":"auspicious"},{"name":"Kāla","start":"21:33","end":"23:00","startHours":21.546460505696984,"endHours":22.996362918921896,"quality":"inauspicious"},{"name":"Śubha","start":"23:00","end":"00:27","startHours":22.996362918921896,"endHours":24.44626533214681,"quality":"auspicious"},{"name":"Roga","start":"00:27","end":"01:54","startHours":24.44626533214681,"endHours":25.896167745371727,"quality":"inauspicious"},{"name":"Udveg","start":"01:54","end":"03:21","startHours":25.896167745371727,"endHours":27.34607015859664,"quality":"inauspicious"},{"name":"Chala","start":"03:21","end":"04:48","startHours":27.34607015859664,"endHours":28.79597257182155,"quality":"neutral"},{"name":"Labha","start":"04:48","end":"06:15","startHours":28.79597257182155,"endHours":30.245874985046466,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:15","end":"07:15","startHours":6.245874985046465,"endHours":7.245874985046465,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:15","end":"08:15","startHours":7.245874985046465,"endHours":8.245874985046466,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:15","end":"09:15","startHours":8.245874985046466,"endHours":9.245874985046466,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:15","end":"10:15","startHours":9.245874985046466,"endHours":10.245874985046466,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:15","end":"11:15","startHours":10.245874985046466,"endHours":11.245874985046466,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:15","end":"12:15","startHours":11.245874985046466,"endHours":12.245874985046466,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:15","end":"13:15","startHours":12.245874985046466,"endHours":13.245874985046466,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:15","end":"14:15","startHours":13.245874985046466,"endHours":14.245874985046466,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:15","end":"15:15","startHours":14.245874985046466,"endHours":15.245874985046466,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:15","end":"16:15","startHours":15.245874985046466,"endHours":16.245874985046466,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:15","end":"17:15","startHours":16.245874985046466,"endHours":17.245874985046466,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:15","end":"18:15","startHours":17.245874985046466,"endHours":18.245874985046466,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:15","end":"19:15","startHours":18.245874985046466,"endHours":19.245874985046466,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:15","end":"20:15","startHours":19.245874985046466,"endHours":20.245874985046466,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:15","end":"21:15","startHours":20.245874985046466,"endHours":21.245874985046466,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:15","end":"22:15","startHours":21.245874985046466,"endHours":22.245874985046466,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:15","end":"23:15","startHours":22.245874985046466,"endHours":23.245874985046466,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:15","end":"00:15","startHours":23.245874985046466,"endHours":24.245874985046466,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:15","end":"01:15","startHours":24.245874985046466,"endHours":25.245874985046466,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:15","end":"02:15","startHours":25.245874985046466,"endHours":26.245874985046466,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:15","end":"03:15","startHours":26.245874985046466,"endHours":27.245874985046466,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:15","end":"04:15","startHours":27.245874985046466,"endHours":28.245874985046466,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:15","end":"05:15","startHours":28.245874985046466,"endHours":29.245874985046466,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:15","end":"06:15","startHours":29.245874985046466,"endHours":30.245874985046466,"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":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"East","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-3.2373990532067576,"eotMinutes":-10.217919928808794,"ayanamsa":22.5845}},"calendars":{"vikram_samvat":1966,"vikram_samvatsara":"Dundubhi","saka_samvat":1831,"saka_samvatsara":"Saumya","bengali_samvat":1316,"malayalam_era":1085,"nanakshahi_year":440,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Phālguna","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Kṛṣṇa Ṣaṣṭhī · Vikram 1966 Dundubhi · Śaka 1831 Saumya"},"festivals":[{"id":"mina-sankranti","name":"Mīna Saṅkrānti","name_sanskrit":"मीन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Pisces; Mīna-māsa begins.","vrata":false,"detection":{"sun_rashi_ingress":"Mīna"},"precedence":5}],"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 March 13, 1909 CE · Perth, Australia · Vidhyamitra","description":"March 13, 1909 CE for Perth, Australia: Kṛṣṇa Ṣaṣṭhī, sūryodaya 06:15, sūryāsta 18:39.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1909-03-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1909-03-13","sa":"https://sa.vidhyamitra.com/city/perth/1909-03-13","hi":"https://hi.vidhyamitra.com/city/perth/1909-03-13","x-default":"https://vidhyamitra.com/city/perth/1909-03-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T04:54:44.992Z","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":"2026-06-01T04:54:44.992Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T04:54:44.992Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}