{"id":"vidhyamitra:city-day:perth:2017-09-22:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2017-09-22","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2017-09-22","date_display":"September 22, 2017 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":2017,"month":9,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458018.770833,"kali_year":5119,"ahargana":1869553.2708,"sun":{"sidereal_longitude":154.3541,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":178.5456,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":24.1915,"elapsed_within_tithi_degrees":0.1915},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":178.5456,"elapsed_within_degrees":5.2123},"yoga":{"number":25,"name":"Brahma","sum_longitude":332.8997},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2017,"month":9,"day":22,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458018.770833,"ahargana":1869553.2708,"kali_year":5119,"ayanamsa_lahiri":24.1006,"grahas":{"sun":{"sidereal_longitude":155.13606499999992,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":177.02126499999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false,"latitude":3.7502},"mars":{"sidereal_longitude":136.19356499999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":141.32376499999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":181.70126499999992,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":128.10706499999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":237.53686500000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":122.0708,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":302.0708,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":2017,"month":9,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458018.770833,"kali_year":5119,"ahargana":1869553.2708,"sun":{"sidereal_longitude":154.3541,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":178.5456,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":24.1915,"elapsed_within_tithi_degrees":0.1915},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":178.5456,"elapsed_within_degrees":5.2123},"yoga":{"number":25,"name":"Brahma","sum_longitude":332.8997},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.75,"elongation":24.191},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.75,"opposition_distance":155.809}},"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":"06:05","sunsetLocal":"18:12","solarNoonLocal":"12:08","dayLengthHours":12.105651417092446,"dayLengthDisplay":"12 Hours 06 Mins 20 Secs","nightLengthDisplay":"11 Hours 53 Mins 40 Secs","moonriseLocal":"07:13","moonsetLocal":"20:00","rahuKala":{"name":"Rāhu Kāla","start":"10:38","end":"12:08","startHours":10.628165178878138,"endHours":12.141371606014694,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:10","end":"16:41","startHours":15.167784460287805,"endHours":16.68099088742436,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:36","end":"09:07","startHours":7.601752324605026,"endHours":9.114958751741582,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:19","startHours":8.913197894790041,"endHours":9.316719608693122,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:36","end":"06:55","startHours":6.592948039847322,"endHours":6.915765410969787,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:33","startHours":11.737849892111612,"endHours":12.544893319917776,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:28","end":"05:17","startHours":4.474459041856144,"endHours":5.281502469662307,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:05","end":"06:05","startHours":5.079741612710766,"endHours":6.08854589746847,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:58","startHours":14.1589801755301,"endHours":14.966023603336263,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:00","end":"18:24","startHours":17.994197314560918,"endHours":18.394197314560916,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:12","end":"18:42","startHours":18.194197314560917,"endHours":18.698599456939768,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:57","end":"19:42","startHours":17.944197314560917,"endHours":19.694197314560917,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:33","startHours":23.737849892111612,"endHours":24.544893319917776,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:05","end":"07:36","startHours":6.08854589746847,"endHours":7.601752324605026,"quality":"neutral"},{"name":"Labha","start":"07:36","end":"09:07","startHours":7.601752324605026,"endHours":9.114958751741582,"quality":"auspicious"},{"name":"Amṛta","start":"09:07","end":"10:38","startHours":9.114958751741582,"endHours":10.628165178878138,"quality":"auspicious"},{"name":"Kāla","start":"10:38","end":"12:08","startHours":10.628165178878138,"endHours":12.141371606014694,"quality":"inauspicious"},{"name":"Śubha","start":"12:08","end":"13:39","startHours":12.141371606014694,"endHours":13.65457803315125,"quality":"auspicious"},{"name":"Roga","start":"13:39","end":"15:10","startHours":13.65457803315125,"endHours":15.167784460287805,"quality":"inauspicious"},{"name":"Udveg","start":"15:10","end":"16:41","startHours":15.167784460287805,"endHours":16.68099088742436,"quality":"inauspicious"},{"name":"Chala","start":"16:41","end":"18:12","startHours":16.68099088742436,"endHours":18.194197314560917,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:12","end":"19:41","startHours":18.194197314560917,"endHours":19.68099088742436,"quality":"inauspicious"},{"name":"Udveg","start":"19:41","end":"21:10","startHours":19.68099088742436,"endHours":21.167784460287805,"quality":"inauspicious"},{"name":"Chala","start":"21:10","end":"22:39","startHours":21.167784460287805,"endHours":22.65457803315125,"quality":"neutral"},{"name":"Labha","start":"22:39","end":"00:08","startHours":22.65457803315125,"endHours":24.141371606014694,"quality":"auspicious"},{"name":"Amṛta","start":"00:08","end":"01:38","startHours":24.141371606014694,"endHours":25.628165178878138,"quality":"auspicious"},{"name":"Kāla","start":"01:38","end":"03:07","startHours":25.628165178878138,"endHours":27.114958751741582,"quality":"inauspicious"},{"name":"Śubha","start":"03:07","end":"04:36","startHours":27.114958751741582,"endHours":28.601752324605027,"quality":"auspicious"},{"name":"Roga","start":"04:36","end":"06:05","startHours":28.601752324605027,"endHours":30.08854589746847,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:05","end":"07:05","startHours":6.08854589746847,"endHours":7.08854589746847,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:05","end":"08:05","startHours":7.08854589746847,"endHours":8.088545897468471,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:05","end":"09:05","startHours":8.088545897468471,"endHours":9.088545897468471,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:05","end":"10:05","startHours":9.088545897468471,"endHours":10.088545897468471,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:05","end":"11:05","startHours":10.088545897468471,"endHours":11.088545897468471,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:05","end":"12:05","startHours":11.088545897468471,"endHours":12.088545897468471,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:05","end":"13:05","startHours":12.088545897468471,"endHours":13.088545897468471,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:05","end":"14:05","startHours":13.088545897468471,"endHours":14.088545897468471,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:05","end":"15:05","startHours":14.088545897468471,"endHours":15.088545897468471,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:05","end":"16:05","startHours":15.088545897468471,"endHours":16.08854589746847,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:05","end":"17:05","startHours":16.08854589746847,"endHours":17.08854589746847,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:05","end":"18:05","startHours":17.08854589746847,"endHours":18.08854589746847,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:05","end":"19:05","startHours":18.08854589746847,"endHours":19.08854589746847,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:05","end":"20:05","startHours":19.08854589746847,"endHours":20.08854589746847,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:05","end":"21:05","startHours":20.08854589746847,"endHours":21.08854589746847,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:05","end":"22:05","startHours":21.08854589746847,"endHours":22.08854589746847,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:05","end":"23:05","startHours":22.08854589746847,"endHours":23.08854589746847,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:05","end":"00:05","startHours":23.08854589746847,"endHours":24.08854589746847,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:05","end":"01:05","startHours":24.08854589746847,"endHours":25.08854589746847,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:05","end":"02:05","startHours":25.08854589746847,"endHours":26.08854589746847,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:05","end":"03:05","startHours":26.08854589746847,"endHours":27.08854589746847,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:05","end":"04:05","startHours":27.08854589746847,"endHours":28.08854589746847,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:05","end":"05:05","startHours":28.08854589746847,"endHours":29.08854589746847,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:05","end":"06:05","startHours":29.08854589746847,"endHours":30.08854589746847,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"South-East","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"drikRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":0.3035955476632959,"eotMinutes":8.075703639118354,"ayanamsa":24.1006}},"calendars":{"vikram_samvat":2074,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1939,"saka_samvatsara":"Hemalambī","bengali_samvat":1424,"malayalam_era":1193,"nanakshahi_year":548,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Tṛtīyā · Vikram 2074 Sādhāraṇa · Śaka 1939 Hemalambī"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 22, 2017 CE · Perth, Australia · Vidhyamitra","description":"September 22, 2017 CE for Perth, Australia: Śukla Tṛtīyā, sūryodaya 06:05, sūryāsta 18:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2017-09-22","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2017-09-22","sa":"https://sa.vidhyamitra.com/city/perth/2017-09-22","hi":"https://hi.vidhyamitra.com/city/perth/2017-09-22","x-default":"https://vidhyamitra.com/city/perth/2017-09-22"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T00:22:36.624Z","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":"2026-05-16T00:22:36.624Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T00:22:36.624Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}