{"id":"vidhyamitra:city-day:perth:2129-09-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2129-09-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2129-09-12","date_display":"September 12, 2129 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":2129,"month":9,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498915.770833,"kali_year":5231,"ahargana":1910450.2708,"sun":{"sidereal_longitude":142.6984,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":123.7431,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":341.0447,"elapsed_within_tithi_degrees":5.0447},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":123.7431,"elapsed_within_degrees":3.7431},"yoga":{"number":20,"name":"Śiva","sum_longitude":266.4415},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"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":2129,"month":9,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2498915.770833,"ahargana":1910450.2708,"kali_year":5231,"ayanamsa_lahiri":25.6648,"grahas":{"sun":{"sidereal_longitude":143.72879899999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":125.181599,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false,"latitude":0.6716},"mars":{"sidereal_longitude":294.21409900000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":124.145399,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":349.980599,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":120.57399900000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":173.50039900000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":115.1509,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":295.1509,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":2129,"month":9,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498915.770833,"kali_year":5231,"ahargana":1910450.2708,"sun":{"sidereal_longitude":142.6984,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":123.7431,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":341.0447,"elapsed_within_tithi_degrees":5.0447},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":123.7431,"elapsed_within_degrees":3.7431},"yoga":{"number":20,"name":"Śiva","sum_longitude":266.4415},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.672,"elongation":18.955},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.672,"opposition_distance":161.045}},"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":"06:19","sunsetLocal":"18:06","solarNoonLocal":"12:12","dayLengthHours":11.781482516270373,"dayLengthDisplay":"11 Hours 46 Mins 53 Secs","nightLengthDisplay":"12 Hours 13 Mins 07 Secs","moonriseLocal":"05:23","moonsetLocal":"16:33","rahuKala":{"name":"Rāhu Kāla","start":"07:47","end":"09:15","startHours":7.7848521305988525,"endHours":9.257537445132648,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:44","end":"12:12","startHours":10.730222759666447,"endHours":12.202908074200241,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:41","end":"15:09","startHours":13.67559338873404,"endHours":15.148278703267835,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:04","end":"09:27","startHours":9.06117940319481,"endHours":9.453895487070488,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:48","end":"07:07","startHours":6.803061920909655,"endHours":7.117234788010198,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:36","startHours":11.810191990324562,"endHours":12.595624158075921,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:44","end":"05:32","startHours":4.741302480562339,"endHours":5.526734648313698,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:20","end":"06:19","startHours":5.330376606375858,"endHours":6.312166816065056,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:57","startHours":14.166488493578637,"endHours":14.951920661329995,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:54","end":"18:18","startHours":17.89364933233543,"endHours":18.293649332335427,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:06","end":"18:35","startHours":18.093649332335428,"endHours":18.58454443718003,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:51","end":"19:36","startHours":17.843649332335428,"endHours":19.593649332335428,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:36","startHours":23.81019199032456,"endHours":24.59562415807592,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:19","end":"07:47","startHours":6.312166816065056,"endHours":7.7848521305988525,"quality":"auspicious"},{"name":"Kāla","start":"07:47","end":"09:15","startHours":7.7848521305988525,"endHours":9.257537445132648,"quality":"inauspicious"},{"name":"Śubha","start":"09:15","end":"10:44","startHours":9.257537445132648,"endHours":10.730222759666447,"quality":"auspicious"},{"name":"Roga","start":"10:44","end":"12:12","startHours":10.730222759666447,"endHours":12.202908074200241,"quality":"inauspicious"},{"name":"Udveg","start":"12:12","end":"13:41","startHours":12.202908074200241,"endHours":13.67559338873404,"quality":"inauspicious"},{"name":"Chala","start":"13:41","end":"15:09","startHours":13.67559338873404,"endHours":15.148278703267835,"quality":"neutral"},{"name":"Labha","start":"15:09","end":"16:37","startHours":15.148278703267835,"endHours":16.620964017801633,"quality":"auspicious"},{"name":"Amṛta","start":"16:37","end":"18:06","startHours":16.620964017801633,"endHours":18.093649332335428,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:06","end":"19:37","startHours":18.093649332335428,"endHours":19.620964017801633,"quality":"neutral"},{"name":"Labha","start":"19:37","end":"21:09","startHours":19.620964017801633,"endHours":21.148278703267835,"quality":"auspicious"},{"name":"Amṛta","start":"21:09","end":"22:41","startHours":21.148278703267835,"endHours":22.675593388734036,"quality":"auspicious"},{"name":"Kāla","start":"22:41","end":"00:12","startHours":22.675593388734036,"endHours":24.20290807420024,"quality":"inauspicious"},{"name":"Śubha","start":"00:12","end":"01:44","startHours":24.20290807420024,"endHours":25.730222759666447,"quality":"auspicious"},{"name":"Roga","start":"01:44","end":"03:15","startHours":25.730222759666447,"endHours":27.257537445132648,"quality":"inauspicious"},{"name":"Udveg","start":"03:15","end":"04:47","startHours":27.257537445132648,"endHours":28.78485213059885,"quality":"inauspicious"},{"name":"Chala","start":"04:47","end":"06:19","startHours":28.78485213059885,"endHours":30.312166816065055,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:19","end":"07:19","startHours":6.312166816065056,"endHours":7.312166816065056,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:19","end":"08:19","startHours":7.312166816065056,"endHours":8.312166816065055,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:19","end":"09:19","startHours":8.312166816065055,"endHours":9.312166816065055,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:19","end":"10:19","startHours":9.312166816065055,"endHours":10.312166816065055,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:19","end":"11:19","startHours":10.312166816065055,"endHours":11.312166816065055,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:19","end":"12:19","startHours":11.312166816065055,"endHours":12.312166816065055,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:19","end":"13:19","startHours":12.312166816065055,"endHours":13.312166816065055,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:19","end":"14:19","startHours":13.312166816065055,"endHours":14.312166816065055,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:19","end":"15:19","startHours":14.312166816065055,"endHours":15.312166816065055,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:19","end":"16:19","startHours":15.312166816065055,"endHours":16.312166816065055,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:19","end":"17:19","startHours":16.312166816065055,"endHours":17.312166816065055,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:19","end":"18:19","startHours":17.312166816065055,"endHours":18.312166816065055,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:19","end":"19:19","startHours":18.312166816065055,"endHours":19.312166816065055,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:19","end":"20:19","startHours":19.312166816065055,"endHours":20.312166816065055,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:19","end":"21:19","startHours":20.312166816065055,"endHours":21.312166816065055,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:19","end":"22:19","startHours":21.312166816065055,"endHours":22.312166816065055,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:19","end":"23:19","startHours":22.312166816065055,"endHours":23.312166816065055,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:19","end":"00:19","startHours":23.312166816065055,"endHours":24.312166816065055,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:19","end":"01:19","startHours":24.312166816065055,"endHours":25.312166816065055,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:19","end":"02:19","startHours":25.312166816065055,"endHours":26.312166816065055,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:19","end":"03:19","startHours":26.312166816065055,"endHours":27.312166816065055,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:19","end":"04:19","startHours":27.312166816065055,"endHours":28.312166816065055,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:19","end":"05:19","startHours":28.312166816065055,"endHours":29.312166816065055,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:19","end":"06:19","startHours":29.312166816065055,"endHours":30.312166816065055,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":4.198213400555232,"eotMinutes":4.383515547985428,"ayanamsa":25.6648}},"calendars":{"vikram_samvat":2186,"vikram_samvatsara":"Śubhakṛt","saka_samvat":2051,"saka_samvatsara":"Virodhi","bengali_samvat":1536,"malayalam_era":1305,"nanakshahi_year":660,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","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 Kṛṣṇa Caturdaśī · Vikram 2186 Śubhakṛt · Śaka 2051 Virodhi"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":[]},"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 12, 2129 CE · Perth, Australia · Vidhyamitra","description":"September 12, 2129 CE for Perth, Australia: Kṛṣṇa Caturdaśī, sūryodaya 06:19, sūryāsta 18:06.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2129-09-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2129-09-12","sa":"https://sa.vidhyamitra.com/city/perth/2129-09-12","hi":"https://hi.vidhyamitra.com/city/perth/2129-09-12","x-default":"https://vidhyamitra.com/city/perth/2129-09-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T22:01:58.678Z","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":"2026-05-31T22:01:58.678Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T22:01:58.678Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}