{"id":"vidhyamitra:city-day:perth:2011-09-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2011-09-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-09-23","date_display":"September 23, 2011 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":2011,"month":9,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455827.770833,"kali_year":5113,"ahargana":1867362.2708,"sun":{"sidereal_longitude":154.8939,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":97.456,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":302.5621,"elapsed_within_tithi_degrees":2.5621},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":97.456,"elapsed_within_degrees":4.1227},"yoga":{"number":19,"name":"Parigha","sum_longitude":252.3499},"karana":{"half_tithi_index":50,"name":"Bava"},"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":2011,"month":9,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455827.770833,"ahargana":1867362.2708,"kali_year":5113,"ayanamsa_lahiri":24.0168,"grahas":{"sun":{"sidereal_longitude":155.66157699999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":95.46817700000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false,"latitude":-2.8482},"mars":{"sidereal_longitude":98.200177,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":150.57637699999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":15.300976999999989,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":165.705777,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":173.38227700000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":238.1605,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":58.1605,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":2011,"month":9,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455827.770833,"kali_year":5113,"ahargana":1867362.2708,"sun":{"sidereal_longitude":154.8939,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":97.456,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":302.5621,"elapsed_within_tithi_degrees":2.5621},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":97.456,"elapsed_within_degrees":4.1227},"yoga":{"number":19,"name":"Parigha","sum_longitude":252.3499},"karana":{"half_tithi_index":50,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.848,"elongation":57.438},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.848,"opposition_distance":122.562}},"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":12.120260224242422,"dayLengthDisplay":"12 Hours 07 Mins 13 Secs","nightLengthDisplay":"11 Hours 52 Mins 47 Secs","moonriseLocal":"02:58","moonsetLocal":"13:17","rahuKala":{"name":"Rāhu Kāla","start":"10:37","end":"12:08","startHours":10.62033357197361,"endHours":12.135366100003914,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:10","end":"16:41","startHours":15.165431156064518,"endHours":16.68046368409482,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:35","end":"09:06","startHours":7.590268515913005,"endHours":9.105301043943307,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.9032967068726,"endHours":9.307305381014015,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:35","end":"06:54","startHours":6.58024683055947,"endHours":6.903453769872601,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:32","startHours":11.7313574258625,"endHours":12.539374774145328,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:28","end":"05:16","startHours":4.459201291317045,"endHours":5.267218639599874,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:04","end":"06:05","startHours":5.065214302529167,"endHours":6.075235987882702,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:58","startHours":14.155409470710982,"endHours":14.96342681899381,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:00","end":"18:24","startHours":17.995496212125126,"endHours":18.395496212125124,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:12","end":"18:42","startHours":18.195496212125125,"endHours":18.700507054801893,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:57","end":"19:42","startHours":17.945496212125125,"endHours":19.695496212125125,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:32","startHours":23.731357425862498,"endHours":24.53937477414533,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:05","end":"07:35","startHours":6.075235987882702,"endHours":7.590268515913005,"quality":"neutral"},{"name":"Labha","start":"07:35","end":"09:06","startHours":7.590268515913005,"endHours":9.105301043943307,"quality":"auspicious"},{"name":"Amṛta","start":"09:06","end":"10:37","startHours":9.105301043943307,"endHours":10.62033357197361,"quality":"auspicious"},{"name":"Kāla","start":"10:37","end":"12:08","startHours":10.62033357197361,"endHours":12.135366100003914,"quality":"inauspicious"},{"name":"Śubha","start":"12:08","end":"13:39","startHours":12.135366100003914,"endHours":13.650398628034216,"quality":"auspicious"},{"name":"Roga","start":"13:39","end":"15:10","startHours":13.650398628034216,"endHours":15.165431156064518,"quality":"inauspicious"},{"name":"Udveg","start":"15:10","end":"16:41","startHours":15.165431156064518,"endHours":16.68046368409482,"quality":"inauspicious"},{"name":"Chala","start":"16:41","end":"18:12","startHours":16.68046368409482,"endHours":18.195496212125125,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:12","end":"19:41","startHours":18.195496212125125,"endHours":19.68046368409482,"quality":"inauspicious"},{"name":"Udveg","start":"19:41","end":"21:10","startHours":19.68046368409482,"endHours":21.16543115606452,"quality":"inauspicious"},{"name":"Chala","start":"21:10","end":"22:39","startHours":21.16543115606452,"endHours":22.650398628034218,"quality":"neutral"},{"name":"Labha","start":"22:39","end":"00:08","startHours":22.650398628034218,"endHours":24.135366100003914,"quality":"auspicious"},{"name":"Amṛta","start":"00:08","end":"01:37","startHours":24.135366100003914,"endHours":25.62033357197361,"quality":"auspicious"},{"name":"Kāla","start":"01:37","end":"03:06","startHours":25.62033357197361,"endHours":27.105301043943307,"quality":"inauspicious"},{"name":"Śubha","start":"03:06","end":"04:35","startHours":27.105301043943307,"endHours":28.590268515913007,"quality":"auspicious"},{"name":"Roga","start":"04:35","end":"06:05","startHours":28.590268515913007,"endHours":30.075235987882703,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:05","end":"07:05","startHours":6.075235987882702,"endHours":7.075235987882702,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:05","end":"08:05","startHours":7.075235987882702,"endHours":8.075235987882703,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:05","end":"09:05","startHours":8.075235987882703,"endHours":9.075235987882703,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:05","end":"10:05","startHours":9.075235987882703,"endHours":10.075235987882703,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:05","end":"11:05","startHours":10.075235987882703,"endHours":11.075235987882703,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:05","end":"12:05","startHours":11.075235987882703,"endHours":12.075235987882703,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:05","end":"13:05","startHours":12.075235987882703,"endHours":13.075235987882703,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:05","end":"14:05","startHours":13.075235987882703,"endHours":14.075235987882703,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:05","end":"15:05","startHours":14.075235987882703,"endHours":15.075235987882703,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:05","end":"16:05","startHours":15.075235987882703,"endHours":16.075235987882703,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:05","end":"17:05","startHours":16.075235987882703,"endHours":17.075235987882703,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:05","end":"18:05","startHours":17.075235987882703,"endHours":18.075235987882703,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:05","end":"19:05","startHours":18.075235987882703,"endHours":19.075235987882703,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:05","end":"20:05","startHours":19.075235987882703,"endHours":20.075235987882703,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:05","end":"21:05","startHours":20.075235987882703,"endHours":21.075235987882703,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:05","end":"22:05","startHours":21.075235987882703,"endHours":22.075235987882703,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:05","end":"23:05","startHours":22.075235987882703,"endHours":23.075235987882703,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:05","end":"00:05","startHours":23.075235987882703,"endHours":24.075235987882703,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:05","end":"01:05","startHours":24.075235987882703,"endHours":25.075235987882703,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:05","end":"02:05","startHours":25.075235987882703,"endHours":26.075235987882703,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:05","end":"03:05","startHours":26.075235987882703,"endHours":27.075235987882703,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:05","end":"04:05","startHours":27.075235987882703,"endHours":28.075235987882703,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:05","end":"05:05","startHours":28.075235987882703,"endHours":29.075235987882703,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:05","end":"06:05","startHours":29.075235987882703,"endHours":30.075235987882703,"planetary_lord":"Mars"}],"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","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"South-East","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":0.1279193418356578,"eotMinutes":8.436033999765183,"ayanamsa":24.0168}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Ekādaśī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"festivals":[{"id":"rama-ekadashi","name":"Ramā Ekādaśī","name_sanskrit":"रमा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu (with Ramā = Lakṣmī)","significance":"Lakṣmī (Ramā) granted boon to King Mucukunda.","vrata":true,"detection":{"tithi_number":26,"tithi_paksha":"Kṛṣṇa","lunar_month":"Āśvina"},"precedence":4},{"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},{"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":"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 23, 2011 CE · Perth, Australia · Vidhyamitra","description":"September 23, 2011 CE for Perth, Australia: Kṛṣṇa Ekādaśī, sūryodaya 06:05, sūryāsta 18:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2011-09-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2011-09-23","sa":"https://sa.vidhyamitra.com/city/perth/2011-09-23","hi":"https://hi.vidhyamitra.com/city/perth/2011-09-23","x-default":"https://vidhyamitra.com/city/perth/2011-09-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T03:12:05.922Z","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":"2026-05-16T03:12:05.922Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T03:12:05.922Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}