{"id":"vidhyamitra:city-day:perth:2147-09-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2147-09-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2147-09-04","date_display":"September 4, 2147 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":2147,"month":9,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505481.770833,"kali_year":5249,"ahargana":1917016.2708,"sun":{"sidereal_longitude":134.3304,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":237.1063,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":102.776,"elapsed_within_tithi_degrees":6.776},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4,"moon_longitude":237.1063,"elapsed_within_degrees":10.4397},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":11.4367},"karana":{"half_tithi_index":17,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2147,"month":9,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2505481.770833,"ahargana":1917016.2708,"kali_year":5249,"ayanamsa_lahiri":25.9159,"grahas":{"sun":{"sidereal_longitude":135.37732899999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":234.48582899999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false,"latitude":4.232},"mars":{"sidereal_longitude":143.811129,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":159.47172899999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":164.816729,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"venus":{"sidereal_longitude":148.571329,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":32.39182900000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":127.2526,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":307.2526,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"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":2147,"month":9,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505481.770833,"kali_year":5249,"ahargana":1917016.2708,"sun":{"sidereal_longitude":134.3304,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":237.1063,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":102.776,"elapsed_within_tithi_degrees":6.776},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4,"moon_longitude":237.1063,"elapsed_within_degrees":10.4397},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":11.4367},"karana":{"half_tithi_index":17,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.232,"elongation":102.776},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.232,"opposition_distance":77.224}},"eclipse_window_40days":[{"offset_days":-9,"type":"solar","occurs":true,"moon_latitude":-0.342,"elongation":2.308},{"offset_days":6,"type":"lunar","occurs":true,"moon_latitude":-1.111,"opposition_distance":1.114}]},"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":"06:29","sunsetLocal":"18:01","solarNoonLocal":"12:15","dayLengthHours":11.518876502883916,"dayLengthDisplay":"11 Hours 31 Mins 08 Secs","nightLengthDisplay":"12 Hours 28 Mins 52 Secs","moonriseLocal":"11:47","moonsetLocal":"01:56","rahuKala":{"name":"Rāhu Kāla","start":"07:56","end":"09:22","startHours":7.9314240431309315,"endHours":9.37128360599142,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:49","end":"12:15","startHours":10.81114316885191,"endHours":12.2510027317124,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:41","end":"15:08","startHours":13.690862294572888,"endHours":15.130721857433379,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:11","end":"09:34","startHours":9.179302330943354,"endHours":9.563264881039487,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:58","end":"07:17","startHours":6.971517667890605,"endHours":7.278687707967509,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:38","startHours":11.867040181616268,"endHours":12.63496528180853,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:57","end":"05:43","startHours":4.955714279885919,"endHours":5.723639380078181,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:32","end":"06:29","startHours":5.5316581050301155,"endHours":6.4915644802704415,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:56","startHours":14.170815482193053,"endHours":14.938740582385314,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:49","end":"18:13","startHours":17.810440983154358,"endHours":18.210440983154356,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:01","end":"18:29","startHours":18.010440983154357,"endHours":18.490394170774522,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:46","end":"19:31","startHours":17.760440983154357,"endHours":19.510440983154357,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:38","startHours":23.867040181616268,"endHours":24.634965281808526,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:29","end":"07:56","startHours":6.4915644802704415,"endHours":7.9314240431309315,"quality":"auspicious"},{"name":"Kāla","start":"07:56","end":"09:22","startHours":7.9314240431309315,"endHours":9.37128360599142,"quality":"inauspicious"},{"name":"Śubha","start":"09:22","end":"10:49","startHours":9.37128360599142,"endHours":10.81114316885191,"quality":"auspicious"},{"name":"Roga","start":"10:49","end":"12:15","startHours":10.81114316885191,"endHours":12.2510027317124,"quality":"inauspicious"},{"name":"Udveg","start":"12:15","end":"13:41","startHours":12.2510027317124,"endHours":13.690862294572888,"quality":"inauspicious"},{"name":"Chala","start":"13:41","end":"15:08","startHours":13.690862294572888,"endHours":15.130721857433379,"quality":"neutral"},{"name":"Labha","start":"15:08","end":"16:34","startHours":15.130721857433379,"endHours":16.57058142029387,"quality":"auspicious"},{"name":"Amṛta","start":"16:34","end":"18:01","startHours":16.57058142029387,"endHours":18.010440983154357,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:01","end":"19:34","startHours":18.010440983154357,"endHours":19.570581420293866,"quality":"neutral"},{"name":"Labha","start":"19:34","end":"21:08","startHours":19.570581420293866,"endHours":21.13072185743338,"quality":"auspicious"},{"name":"Amṛta","start":"21:08","end":"22:41","startHours":21.13072185743338,"endHours":22.690862294572888,"quality":"auspicious"},{"name":"Kāla","start":"22:41","end":"00:15","startHours":22.690862294572888,"endHours":24.251002731712397,"quality":"inauspicious"},{"name":"Śubha","start":"00:15","end":"01:49","startHours":24.251002731712397,"endHours":25.81114316885191,"quality":"auspicious"},{"name":"Roga","start":"01:49","end":"03:22","startHours":25.81114316885191,"endHours":27.37128360599142,"quality":"inauspicious"},{"name":"Udveg","start":"03:22","end":"04:56","startHours":27.37128360599142,"endHours":28.93142404313093,"quality":"inauspicious"},{"name":"Chala","start":"04:56","end":"06:29","startHours":28.93142404313093,"endHours":30.49156448027044,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:29","end":"07:29","startHours":6.4915644802704415,"endHours":7.4915644802704415,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:29","end":"08:29","startHours":7.4915644802704415,"endHours":8.49156448027044,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:29","end":"09:29","startHours":8.49156448027044,"endHours":9.49156448027044,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:29","end":"10:29","startHours":9.49156448027044,"endHours":10.49156448027044,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:29","end":"11:29","startHours":10.49156448027044,"endHours":11.49156448027044,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:29","end":"12:29","startHours":11.49156448027044,"endHours":12.49156448027044,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:29","end":"13:29","startHours":12.49156448027044,"endHours":13.49156448027044,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:29","end":"14:29","startHours":13.49156448027044,"endHours":14.49156448027044,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:29","end":"15:29","startHours":14.49156448027044,"endHours":15.49156448027044,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:29","end":"16:29","startHours":15.49156448027044,"endHours":16.49156448027044,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:29","end":"17:29","startHours":16.49156448027044,"endHours":17.49156448027044,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:29","end":"18:29","startHours":17.49156448027044,"endHours":18.49156448027044,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:29","end":"19:29","startHours":18.49156448027044,"endHours":19.49156448027044,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:29","end":"20:29","startHours":19.49156448027044,"endHours":20.49156448027044,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:29","end":"21:29","startHours":20.49156448027044,"endHours":21.49156448027044,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:29","end":"22:29","startHours":21.49156448027044,"endHours":22.49156448027044,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:29","end":"23:29","startHours":22.49156448027044,"endHours":23.49156448027044,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:29","end":"00:29","startHours":23.49156448027044,"endHours":24.49156448027044,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:29","end":"01:29","startHours":24.49156448027044,"endHours":25.49156448027044,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:29","end":"02:29","startHours":25.49156448027044,"endHours":26.49156448027044,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:29","end":"03:29","startHours":26.49156448027044,"endHours":27.49156448027044,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:29","end":"04:29","startHours":27.49156448027044,"endHours":28.49156448027044,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:29","end":"05:29","startHours":28.49156448027044,"endHours":29.49156448027044,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:29","end":"06:29","startHours":29.49156448027044,"endHours":30.49156448027044,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"North-East","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":7.3287734938454685,"eotMinutes":1.4978360972560227,"ayanamsa":25.9159}},"calendars":{"vikram_samvat":2204,"vikram_samvatsara":"Raudra","saka_samvat":2069,"saka_samvatsara":"Plavaṅga","bengali_samvat":1554,"malayalam_era":1323,"nanakshahi_year":678,"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 Navamī · Vikram 2204 Raudra · Śaka 2069 Plavaṅga"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5},{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 September 4, 2147 CE · Perth, Australia · Vidhyamitra","description":"September 4, 2147 CE for Perth, Australia: Śukla Navamī, sūryodaya 06:29, sūryāsta 18:01.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2147-09-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2147-09-04","sa":"https://sa.vidhyamitra.com/city/perth/2147-09-04","hi":"https://hi.vidhyamitra.com/city/perth/2147-09-04","x-default":"https://vidhyamitra.com/city/perth/2147-09-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T13:59:09.354Z","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":"2026-05-31T13:59:09.354Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T13:59:09.354Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}