{"id":"vidhyamitra:city-day:perth:2017-04-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2017-04-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2017-04-11","date_display":"April 11, 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":4,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457854.770833,"kali_year":5118,"ahargana":1869389.2708,"sun":{"sidereal_longitude":357.3592,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":176.5629,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":179.2038,"elapsed_within_tithi_degrees":11.2038},"nakshatra":{"number":14,"name":"Citrā","pada":1,"moon_longitude":176.5629,"elapsed_within_degrees":3.2296},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":173.9221},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":4,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457854.770833,"ahargana":1869389.2708,"kali_year":5118,"ayanamsa_lahiri":24.0943,"grahas":{"sun":{"sidereal_longitude":357.256531,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":174.872931,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false,"latitude":3.2246},"mars":{"sidereal_longitude":28.42643099999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":10.672130999999979,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":173.31153100000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":true},"venus":{"sidereal_longitude":332.986231,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":243.50903100000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":130.7603,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":310.7603,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"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":4,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457854.770833,"kali_year":5118,"ahargana":1869389.2708,"sun":{"sidereal_longitude":357.3592,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":176.5629,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":179.2038,"elapsed_within_tithi_degrees":11.2038},"nakshatra":{"number":14,"name":"Citrā","pada":1,"moon_longitude":176.5629,"elapsed_within_degrees":3.2296},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":173.9221},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.225,"elongation":179.204},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.225,"opposition_distance":0.796}},"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":"06:35","sunsetLocal":"18:01","solarNoonLocal":"12:18","dayLengthHours":11.434498370222052,"dayLengthDisplay":"11 Hours 26 Mins 04 Secs","nightLengthDisplay":"12 Hours 33 Mins 56 Secs","moonriseLocal":"17:47","moonsetLocal":"06:30","rahuKala":{"name":"Rāhu Kāla","start":"15:09","end":"16:35","startHours":15.15663604156346,"endHours":16.585948337841216,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:26","end":"10:52","startHours":9.439386856452433,"endHours":10.86869915273019,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:18","end":"13:44","startHours":12.298011449007948,"endHours":13.727323745285704,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:15","end":"09:38","startHours":9.2488118836154,"endHours":9.629961829289469,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:03","end":"07:22","startHours":7.057199695989507,"endHours":7.3621196525287615,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:41","startHours":11.91686150333388,"endHours":12.679161394682016,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:03","end":"05:49","startHours":5.056162481200648,"endHours":5.818462372548784,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:38","end":"06:35","startHours":5.62788739971175,"endHours":6.580762263896921,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:12","end":"14:58","startHours":14.20376117737829,"endHours":14.966061068726427,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:49","end":"18:13","startHours":17.815260634118975,"endHours":18.215260634118973,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:01","end":"18:30","startHours":18.015260634118974,"endHours":18.49169806621156,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:46","end":"19:31","startHours":17.765260634118974,"endHours":19.515260634118974,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:41","startHours":23.91686150333388,"endHours":24.679161394682016,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:35","end":"08:01","startHours":6.580762263896921,"endHours":8.010074560174678,"quality":"inauspicious"},{"name":"Udveg","start":"08:01","end":"09:26","startHours":8.010074560174678,"endHours":9.439386856452433,"quality":"inauspicious"},{"name":"Chala","start":"09:26","end":"10:52","startHours":9.439386856452433,"endHours":10.86869915273019,"quality":"neutral"},{"name":"Labha","start":"10:52","end":"12:18","startHours":10.86869915273019,"endHours":12.298011449007948,"quality":"auspicious"},{"name":"Amṛta","start":"12:18","end":"13:44","startHours":12.298011449007948,"endHours":13.727323745285704,"quality":"auspicious"},{"name":"Kāla","start":"13:44","end":"15:09","startHours":13.727323745285704,"endHours":15.15663604156346,"quality":"inauspicious"},{"name":"Śubha","start":"15:09","end":"16:35","startHours":15.15663604156346,"endHours":16.585948337841216,"quality":"auspicious"},{"name":"Roga","start":"16:35","end":"18:01","startHours":16.585948337841216,"endHours":18.015260634118974,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:01","end":"19:35","startHours":18.015260634118974,"endHours":19.585948337841216,"quality":"inauspicious"},{"name":"Śubha","start":"19:35","end":"21:09","startHours":19.585948337841216,"endHours":21.15663604156346,"quality":"auspicious"},{"name":"Roga","start":"21:09","end":"22:44","startHours":21.15663604156346,"endHours":22.727323745285705,"quality":"inauspicious"},{"name":"Udveg","start":"22:44","end":"00:18","startHours":22.727323745285705,"endHours":24.298011449007948,"quality":"inauspicious"},{"name":"Chala","start":"00:18","end":"01:52","startHours":24.298011449007948,"endHours":25.86869915273019,"quality":"neutral"},{"name":"Labha","start":"01:52","end":"03:26","startHours":25.86869915273019,"endHours":27.439386856452437,"quality":"auspicious"},{"name":"Amṛta","start":"03:26","end":"05:01","startHours":27.439386856452437,"endHours":29.01007456017468,"quality":"auspicious"},{"name":"Kāla","start":"05:01","end":"06:35","startHours":29.01007456017468,"endHours":30.580762263896922,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:35","end":"07:35","startHours":6.580762263896921,"endHours":7.580762263896921,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:35","end":"08:35","startHours":7.580762263896921,"endHours":8.580762263896922,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:35","end":"09:35","startHours":8.580762263896922,"endHours":9.580762263896922,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:35","end":"10:35","startHours":9.580762263896922,"endHours":10.580762263896922,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:35","end":"11:35","startHours":10.580762263896922,"endHours":11.580762263896922,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:35","end":"12:35","startHours":11.580762263896922,"endHours":12.580762263896922,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:35","end":"13:35","startHours":12.580762263896922,"endHours":13.580762263896922,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:35","end":"14:35","startHours":13.580762263896922,"endHours":14.580762263896922,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:35","end":"15:35","startHours":14.580762263896922,"endHours":15.580762263896922,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:35","end":"16:35","startHours":15.580762263896922,"endHours":16.580762263896922,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:35","end":"17:35","startHours":16.580762263896922,"endHours":17.580762263896922,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:35","end":"18:35","startHours":17.580762263896922,"endHours":18.580762263896922,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:35","end":"19:35","startHours":18.580762263896922,"endHours":19.580762263896922,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:35","end":"20:35","startHours":19.580762263896922,"endHours":20.580762263896922,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:35","end":"21:35","startHours":20.580762263896922,"endHours":21.580762263896922,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:35","end":"22:35","startHours":21.580762263896922,"endHours":22.580762263896922,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:35","end":"23:35","startHours":22.580762263896922,"endHours":23.580762263896922,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:35","end":"00:35","startHours":23.580762263896922,"endHours":24.580762263896922,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:35","end":"01:35","startHours":24.580762263896922,"endHours":25.580762263896922,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:35","end":"02:35","startHours":25.580762263896922,"endHours":26.580762263896922,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:35","end":"03:35","startHours":26.580762263896922,"endHours":27.580762263896922,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:35","end":"04:35","startHours":27.580762263896922,"endHours":28.580762263896922,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:35","end":"05:35","startHours":28.580762263896922,"endHours":29.580762263896922,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:35","end":"06:35","startHours":29.580762263896922,"endHours":30.580762263896922,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"North","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":8.326016377996398,"eotMinutes":-1.322686940476858,"ayanamsa":24.0943}},"calendars":{"vikram_samvat":2074,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1939,"saka_samvatsara":"Hemalambī","bengali_samvat":1424,"malayalam_era":1193,"nanakshahi_year":548,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Pūrṇimā · Vikram 2074 Sādhāraṇa · Śaka 1939 Hemalambī"},"festivals":[{"id":"hanuman-jayanti","name":"Hanumān Jayantī","name_sanskrit":"हनुमान जयन्ती","tradition":"Vaishnava","associated_deity":"Bhagavān Hanumān (Rudra-aṁśa, Rāma-bhakta)","significance":"Birth of Hanumān (Caitra Pūrṇimā tradition; some traditions Mārgaśīrṣa Kṛṣṇa 14).","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":1,"sources":["Vālmīki Rāmāyaṇa, Sundara-Kāṇḍa"]},{"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":"Mīna"},"precedence":5}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","relevance":0.5}]},"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 April 11, 2017 CE · Perth, Australia · Vidhyamitra","description":"April 11, 2017 CE for Perth, Australia: Śukla Pūrṇimā, sūryodaya 06:35, sūryāsta 18:01.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2017-04-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2017-04-11","sa":"https://sa.vidhyamitra.com/city/perth/2017-04-11","hi":"https://hi.vidhyamitra.com/city/perth/2017-04-11","x-default":"https://vidhyamitra.com/city/perth/2017-04-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T07:00:38.280Z","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":"2026-05-15T07:00:38.280Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T07:00:38.280Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}