{"id":"vidhyamitra:city-day:perth:2103-09-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2103-09-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2103-09-12","date_display":"September 12, 2103 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":2103,"month":9,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489418.770833,"kali_year":5205,"ahargana":1900953.2708,"sun":{"sidereal_longitude":142.4345,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":265.4976,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":123.0631,"elapsed_within_tithi_degrees":3.0631},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4,"moon_longitude":265.4976,"elapsed_within_degrees":12.1642},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":47.9321},"karana":{"half_tithi_index":20,"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":2103,"month":9,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2489418.770833,"ahargana":1900953.2708,"kali_year":5205,"ayanamsa_lahiri":25.3015,"grahas":{"sun":{"sidereal_longitude":143.40085399999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":263.3286539999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false,"latitude":0.5595},"mars":{"sidereal_longitude":68.190854,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":126.00185399999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":261.380854,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":97.394654,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":210.44395400000008,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":258.3477,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":78.3477,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":2103,"month":9,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489418.770833,"kali_year":5205,"ahargana":1900953.2708,"sun":{"sidereal_longitude":142.4345,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":265.4976,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":123.0631,"elapsed_within_tithi_degrees":3.0631},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4,"moon_longitude":265.4976,"elapsed_within_degrees":12.1642},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":47.9321},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.56,"elongation":123.063},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.56,"opposition_distance":56.937}},"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":"06:19","sunsetLocal":"18:05","solarNoonLocal":"12:12","dayLengthHours":11.758880047443874,"dayLengthDisplay":"11 Hours 45 Mins 32 Secs","nightLengthDisplay":"12 Hours 14 Mins 28 Secs","moonriseLocal":"13:10","moonsetLocal":"03:14","rahuKala":{"name":"Rāhu Kāla","start":"12:12","end":"13:40","startHours":12.202908074200241,"endHours":13.672768080130727,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:48","end":"09:16","startHours":7.7933280564087895,"endHours":9.263188062339275,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:44","end":"12:12","startHours":10.733048068269758,"endHours":12.202908074200241,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:04","end":"09:28","startHours":9.06720672821521,"endHours":9.459169396463338,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:49","end":"07:08","startHours":6.813421385788467,"endHours":7.12699152038697,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:36","startHours":11.810945405952113,"endHours":12.59487074244837,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:45","end":"05:32","startHours":4.755617377485788,"endHours":5.539542713982047,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:21","end":"06:19","startHours":5.343561379857983,"endHours":6.323468050478305,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:57","startHours":14.162721415440888,"endHours":14.946646751937147,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:53","end":"18:17","startHours":17.88234809792218,"endHours":18.282348097922178,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:05","end":"18:34","startHours":18.08234809792218,"endHours":18.57230143323234,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:50","end":"19:35","startHours":17.83234809792218,"endHours":19.58234809792218,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:36","startHours":23.81094540595211,"endHours":24.59487074244837,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:19","end":"07:48","startHours":6.323468050478305,"endHours":7.7933280564087895,"quality":"auspicious"},{"name":"Amṛta","start":"07:48","end":"09:16","startHours":7.7933280564087895,"endHours":9.263188062339275,"quality":"auspicious"},{"name":"Kāla","start":"09:16","end":"10:44","startHours":9.263188062339275,"endHours":10.733048068269758,"quality":"inauspicious"},{"name":"Śubha","start":"10:44","end":"12:12","startHours":10.733048068269758,"endHours":12.202908074200241,"quality":"auspicious"},{"name":"Roga","start":"12:12","end":"13:40","startHours":12.202908074200241,"endHours":13.672768080130727,"quality":"inauspicious"},{"name":"Udveg","start":"13:40","end":"15:09","startHours":13.672768080130727,"endHours":15.142628086061212,"quality":"inauspicious"},{"name":"Chala","start":"15:09","end":"16:37","startHours":15.142628086061212,"endHours":16.612488091991693,"quality":"neutral"},{"name":"Labha","start":"16:37","end":"18:05","startHours":16.612488091991693,"endHours":18.08234809792218,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:05","end":"19:37","startHours":18.08234809792218,"endHours":19.612488091991693,"quality":"inauspicious"},{"name":"Chala","start":"19:37","end":"21:09","startHours":19.612488091991693,"endHours":21.142628086061208,"quality":"neutral"},{"name":"Labha","start":"21:09","end":"22:40","startHours":21.142628086061208,"endHours":22.672768080130727,"quality":"auspicious"},{"name":"Amṛta","start":"22:40","end":"00:12","startHours":22.672768080130727,"endHours":24.20290807420024,"quality":"auspicious"},{"name":"Kāla","start":"00:12","end":"01:44","startHours":24.20290807420024,"endHours":25.733048068269756,"quality":"inauspicious"},{"name":"Śubha","start":"01:44","end":"03:16","startHours":25.733048068269756,"endHours":27.263188062339275,"quality":"auspicious"},{"name":"Roga","start":"03:16","end":"04:48","startHours":27.263188062339275,"endHours":28.79332805640879,"quality":"inauspicious"},{"name":"Udveg","start":"04:48","end":"06:19","startHours":28.79332805640879,"endHours":30.323468050478304,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:19","end":"07:19","startHours":6.323468050478305,"endHours":7.323468050478305,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:19","end":"08:19","startHours":7.323468050478305,"endHours":8.323468050478304,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:19","end":"09:19","startHours":8.323468050478304,"endHours":9.323468050478304,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:19","end":"10:19","startHours":9.323468050478304,"endHours":10.323468050478304,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:19","end":"11:19","startHours":10.323468050478304,"endHours":11.323468050478304,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:19","end":"12:19","startHours":11.323468050478304,"endHours":12.323468050478304,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:19","end":"13:19","startHours":12.323468050478304,"endHours":13.323468050478304,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:19","end":"14:19","startHours":13.323468050478304,"endHours":14.323468050478304,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:19","end":"15:19","startHours":14.323468050478304,"endHours":15.323468050478304,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:19","end":"16:19","startHours":15.323468050478304,"endHours":16.323468050478304,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:19","end":"17:19","startHours":16.323468050478304,"endHours":17.323468050478304,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:19","end":"18:19","startHours":17.323468050478304,"endHours":18.323468050478304,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:19","end":"19:19","startHours":18.323468050478304,"endHours":19.323468050478304,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:19","end":"20:19","startHours":19.323468050478304,"endHours":20.323468050478304,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:19","end":"21:19","startHours":20.323468050478304,"endHours":21.323468050478304,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:19","end":"22:19","startHours":21.323468050478304,"endHours":22.323468050478304,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:19","end":"23:19","startHours":22.323468050478304,"endHours":23.323468050478304,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:19","end":"00:19","startHours":23.323468050478304,"endHours":24.323468050478304,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:19","end":"01:19","startHours":24.323468050478304,"endHours":25.323468050478304,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:19","end":"02:19","startHours":25.323468050478304,"endHours":26.323468050478304,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:19","end":"03:19","startHours":26.323468050478304,"endHours":27.323468050478304,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:19","end":"04:19","startHours":27.323468050478304,"endHours":28.323468050478304,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:19","end":"05:19","startHours":28.323468050478304,"endHours":29.323468050478304,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:19","end":"06:19","startHours":29.323468050478304,"endHours":30.323468050478304,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"South-West","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":4.468909079915892,"eotMinutes":4.383515547985428,"ayanamsa":25.3015}},"calendars":{"vikram_samvat":2160,"vikram_samvatsara":"Dhātṛ","saka_samvat":2025,"saka_samvatsara":"Rudhirodgāri","bengali_samvat":1510,"malayalam_era":1279,"nanakshahi_year":634,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Ekādaśī · Vikram 2160 Dhātṛ · Śaka 2025 Rudhirodgāri"},"festivals":[{"id":"parsva-ekadashi","name":"Pārśva (Parivartinī) Ekādaśī","name_sanskrit":"पार्श्व एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu (turning side in yoga-nidrā)","significance":"Viṣṇu turns from one side to another in yoga-nidrā (mid-Cāturmāsya).","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":3},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"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 September 12, 2103 CE · Perth, Australia · Vidhyamitra","description":"September 12, 2103 CE for Perth, Australia: Śukla Ekādaśī, sūryodaya 06:19, sūryāsta 18:05.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2103-09-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2103-09-12","sa":"https://sa.vidhyamitra.com/city/perth/2103-09-12","hi":"https://hi.vidhyamitra.com/city/perth/2103-09-12","x-default":"https://vidhyamitra.com/city/perth/2103-09-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T03:58:38.899Z","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":"2026-06-02T03:58:38.899Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T03:58:38.899Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}