{"id":"vidhyamitra:city-day:perth:2181-09-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2181-09-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2181-09-19","date_display":"September 19, 2181 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":2181,"month":9,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517915.770833,"kali_year":5283,"ahargana":1929450.2708,"sun":{"sidereal_longitude":149.0541,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":278.2334,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":129.1793,"elapsed_within_tithi_degrees":9.1793},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":278.2334,"elapsed_within_degrees":11.5668},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":67.2876},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"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":2181,"month":9,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517915.770833,"ahargana":1929450.2708,"kali_year":5283,"ayanamsa_lahiri":26.3914,"grahas":{"sun":{"sidereal_longitude":150.226559,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":278.06815900000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false,"latitude":4.5},"mars":{"sidereal_longitude":168.16075899999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":130.066759,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":129.79075899999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":193.75515900000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":93.66165899999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":188.4395,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":8.4395,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"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":2181,"month":9,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517915.770833,"kali_year":5283,"ahargana":1929450.2708,"sun":{"sidereal_longitude":149.0541,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":278.2334,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":129.1793,"elapsed_within_tithi_degrees":9.1793},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":278.2334,"elapsed_within_degrees":11.5668},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":67.2876},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.5,"elongation":129.179},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.5,"opposition_distance":50.821}},"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":"06:09","sunsetLocal":"18:10","solarNoonLocal":"12:10","dayLengthHours":12.019105556626833,"dayLengthDisplay":"12 Hours 01 Mins 09 Secs","nightLengthDisplay":"11 Hours 58 Mins 51 Secs","moonriseLocal":"13:48","moonsetLocal":"03:34","rahuKala":{"name":"Rāhu Kāla","start":"12:10","end":"13:40","startHours":12.159645398542501,"endHours":13.662033593120857,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:39","end":"09:09","startHours":7.65248081480744,"endHours":9.154869009385795,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:39","end":"12:10","startHours":10.657257203964148,"endHours":12.159645398542501,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:21","startHours":8.954550583442014,"endHours":9.355187435329574,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:39","end":"06:58","startHours":6.650888685088537,"endHours":6.971398166598586,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:34","startHours":11.75900854665494,"endHours":12.560282250430063,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:33","end":"05:21","startHours":4.547545212678841,"endHours":5.348818916453964,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:09","end":"06:09","startHours":5.148500490510183,"endHours":6.150092620229086,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:58","startHours":14.162829657980307,"endHours":14.964103361755429,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:58","end":"18:22","startHours":17.96919817685592,"endHours":18.369198176855917,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:10","end":"18:40","startHours":18.169198176855918,"endHours":18.66999424171537,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:55","end":"19:40","startHours":17.919198176855918,"endHours":19.669198176855918,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:34","startHours":23.75900854665494,"endHours":24.560282250430063,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:09","end":"07:39","startHours":6.150092620229086,"endHours":7.65248081480744,"quality":"auspicious"},{"name":"Amṛta","start":"07:39","end":"09:09","startHours":7.65248081480744,"endHours":9.154869009385795,"quality":"auspicious"},{"name":"Kāla","start":"09:09","end":"10:39","startHours":9.154869009385795,"endHours":10.657257203964148,"quality":"inauspicious"},{"name":"Śubha","start":"10:39","end":"12:10","startHours":10.657257203964148,"endHours":12.159645398542501,"quality":"auspicious"},{"name":"Roga","start":"12:10","end":"13:40","startHours":12.159645398542501,"endHours":13.662033593120857,"quality":"inauspicious"},{"name":"Udveg","start":"13:40","end":"15:10","startHours":13.662033593120857,"endHours":15.164421787699212,"quality":"inauspicious"},{"name":"Chala","start":"15:10","end":"16:40","startHours":15.164421787699212,"endHours":16.666809982277563,"quality":"neutral"},{"name":"Labha","start":"16:40","end":"18:10","startHours":16.666809982277563,"endHours":18.169198176855918,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:10","end":"19:40","startHours":18.169198176855918,"endHours":19.666809982277563,"quality":"inauspicious"},{"name":"Chala","start":"19:40","end":"21:10","startHours":19.666809982277563,"endHours":21.16442178769921,"quality":"neutral"},{"name":"Labha","start":"21:10","end":"22:40","startHours":21.16442178769921,"endHours":22.662033593120857,"quality":"auspicious"},{"name":"Amṛta","start":"22:40","end":"00:10","startHours":22.662033593120857,"endHours":24.1596453985425,"quality":"auspicious"},{"name":"Kāla","start":"00:10","end":"01:39","startHours":24.1596453985425,"endHours":25.657257203964146,"quality":"inauspicious"},{"name":"Śubha","start":"01:39","end":"03:09","startHours":25.657257203964146,"endHours":27.15486900938579,"quality":"auspicious"},{"name":"Roga","start":"03:09","end":"04:39","startHours":27.15486900938579,"endHours":28.65248081480744,"quality":"inauspicious"},{"name":"Udveg","start":"04:39","end":"06:09","startHours":28.65248081480744,"endHours":30.150092620229085,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:09","end":"07:09","startHours":6.150092620229086,"endHours":7.150092620229086,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:09","end":"08:09","startHours":7.150092620229086,"endHours":8.150092620229085,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:09","end":"09:09","startHours":8.150092620229085,"endHours":9.150092620229085,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:09","end":"10:09","startHours":9.150092620229085,"endHours":10.150092620229085,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:09","end":"11:09","startHours":10.150092620229085,"endHours":11.150092620229085,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:09","end":"12:09","startHours":11.150092620229085,"endHours":12.150092620229085,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:09","end":"13:09","startHours":12.150092620229085,"endHours":13.150092620229085,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:09","end":"14:09","startHours":13.150092620229085,"endHours":14.150092620229085,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:09","end":"15:09","startHours":14.150092620229085,"endHours":15.150092620229085,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:09","end":"16:09","startHours":15.150092620229085,"endHours":16.150092620229085,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:09","end":"17:09","startHours":16.150092620229085,"endHours":17.150092620229085,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:09","end":"18:09","startHours":17.150092620229085,"endHours":18.150092620229085,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:09","end":"19:09","startHours":18.150092620229085,"endHours":19.150092620229085,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:09","end":"20:09","startHours":19.150092620229085,"endHours":20.150092620229085,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:09","end":"21:09","startHours":20.150092620229085,"endHours":21.150092620229085,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:09","end":"22:09","startHours":21.150092620229085,"endHours":22.150092620229085,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:09","end":"23:09","startHours":22.150092620229085,"endHours":23.150092620229085,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:09","end":"00:09","startHours":23.150092620229085,"endHours":24.150092620229085,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:09","end":"01:09","startHours":24.150092620229085,"endHours":25.150092620229085,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:09","end":"02:09","startHours":25.150092620229085,"endHours":26.150092620229085,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:09","end":"03:09","startHours":26.150092620229085,"endHours":27.150092620229085,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:09","end":"04:09","startHours":27.150092620229085,"endHours":28.150092620229085,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:09","end":"05:09","startHours":28.150092620229085,"endHours":29.150092620229085,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:09","end":"06:09","startHours":29.150092620229085,"endHours":30.150092620229085,"planetary_lord":"Sun"}],"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":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":1.344489868225975,"eotMinutes":6.979276087449932,"ayanamsa":26.3914}},"calendars":{"vikram_samvat":2238,"vikram_samvatsara":"Jaya","saka_samvat":2103,"saka_samvatsara":"Vṛṣa","bengali_samvat":1588,"malayalam_era":1357,"nanakshahi_year":712,"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":"Kanyā (Puraṭṭāsi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Ekādaśī · Vikram 2238 Jaya · Śaka 2103 Vṛṣa"},"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 19, 2181 CE · Perth, Australia · Vidhyamitra","description":"September 19, 2181 CE for Perth, Australia: Śukla Ekādaśī, sūryodaya 06:09, sūryāsta 18:10.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2181-09-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2181-09-19","sa":"https://sa.vidhyamitra.com/city/perth/2181-09-19","hi":"https://hi.vidhyamitra.com/city/perth/2181-09-19","x-default":"https://vidhyamitra.com/city/perth/2181-09-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T05:44:12.644Z","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":"2026-06-01T05:44:12.644Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T05:44:12.644Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}