{"id":"vidhyamitra:city-day:perth:2152-09-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2152-09-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2152-09-17","date_display":"September 17, 2152 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":2152,"month":9,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2507321.770833,"kali_year":5254,"ahargana":1918856.2708,"sun":{"sidereal_longitude":147.5989,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":4.9883,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":217.3894,"elapsed_within_tithi_degrees":1.3894},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":4.9883,"elapsed_within_degrees":4.9883},"yoga":{"number":12,"name":"Dhruva","sum_longitude":152.5872},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2152,"month":9,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2507321.770833,"ahargana":1918856.2708,"kali_year":5254,"ayanamsa_lahiri":25.9863,"grahas":{"sun":{"sidereal_longitude":148.69732799999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":2.7604279999999903,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false,"latitude":-1.884},"mars":{"sidereal_longitude":84.41632800000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":171.761528,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":318.7113280000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":182.842128,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":99.20022799999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":29.7606,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":209.7606,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":2152,"month":9,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2507321.770833,"kali_year":5254,"ahargana":1918856.2708,"sun":{"sidereal_longitude":147.5989,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":4.9883,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":217.3894,"elapsed_within_tithi_degrees":1.3894},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":4.9883,"elapsed_within_degrees":4.9883},"yoga":{"number":12,"name":"Dhruva","sum_longitude":152.5872},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.884,"elongation":142.611},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.884,"opposition_distance":37.389}},"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":"06:12","sunsetLocal":"18:09","solarNoonLocal":"12:10","dayLengthHours":11.955281276680434,"dayLengthDisplay":"11 Hours 57 Mins 19 Secs","nightLengthDisplay":"12 Hours 02 Mins 41 Secs","moonriseLocal":"20:52","moonsetLocal":"08:01","rahuKala":{"name":"Rāhu Kāla","start":"16:39","end":"18:09","startHours":16.6552044161657,"endHours":18.149614575750753,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:10","end":"13:40","startHours":12.171973937410534,"endHours":13.66638409699559,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:10","end":"16:39","startHours":15.160794256580644,"endHours":16.6552044161657,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:59","end":"09:23","startHours":8.983898930295753,"endHours":9.3824083061851,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:42","end":"07:01","startHours":6.692470018932003,"endHours":7.011277519643481,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:34","startHours":11.77346456152119,"endHours":12.570483313299883,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:36","end":"05:24","startHours":4.600295795512927,"endHours":5.397314547291622,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:12","end":"06:12","startHours":5.198059859346949,"endHours":6.194333299070318,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:58","startHours":14.164520816857275,"endHours":14.96153956863597,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.949614575750754,"endHours":18.349614575750753,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:39","startHours":18.149614575750753,"endHours":18.647751295612437,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.899614575750753,"endHours":19.649614575750753,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:34","startHours":23.773464561521187,"endHours":24.57048331329988,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:12","end":"07:41","startHours":6.194333299070318,"endHours":7.688743458655372,"quality":"inauspicious"},{"name":"Chala","start":"07:41","end":"09:11","startHours":7.688743458655372,"endHours":9.183153618240427,"quality":"neutral"},{"name":"Labha","start":"09:11","end":"10:41","startHours":9.183153618240427,"endHours":10.67756377782548,"quality":"auspicious"},{"name":"Amṛta","start":"10:41","end":"12:10","startHours":10.67756377782548,"endHours":12.171973937410534,"quality":"auspicious"},{"name":"Kāla","start":"12:10","end":"13:40","startHours":12.171973937410534,"endHours":13.66638409699559,"quality":"inauspicious"},{"name":"Śubha","start":"13:40","end":"15:10","startHours":13.66638409699559,"endHours":15.160794256580644,"quality":"auspicious"},{"name":"Roga","start":"15:10","end":"16:39","startHours":15.160794256580644,"endHours":16.6552044161657,"quality":"inauspicious"},{"name":"Udveg","start":"16:39","end":"18:09","startHours":16.6552044161657,"endHours":18.149614575750753,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:09","end":"19:39","startHours":18.149614575750753,"endHours":19.6552044161657,"quality":"auspicious"},{"name":"Roga","start":"19:39","end":"21:10","startHours":19.6552044161657,"endHours":21.160794256580644,"quality":"inauspicious"},{"name":"Udveg","start":"21:10","end":"22:40","startHours":21.160794256580644,"endHours":22.666384096995593,"quality":"inauspicious"},{"name":"Chala","start":"22:40","end":"00:10","startHours":22.666384096995593,"endHours":24.171973937410534,"quality":"neutral"},{"name":"Labha","start":"00:10","end":"01:41","startHours":24.171973937410534,"endHours":25.677563777825483,"quality":"auspicious"},{"name":"Amṛta","start":"01:41","end":"03:11","startHours":25.677563777825483,"endHours":27.18315361824043,"quality":"auspicious"},{"name":"Kāla","start":"03:11","end":"04:41","startHours":27.18315361824043,"endHours":28.688743458655374,"quality":"inauspicious"},{"name":"Śubha","start":"04:41","end":"06:12","startHours":28.688743458655374,"endHours":30.19433329907032,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:12","end":"07:12","startHours":6.194333299070318,"endHours":7.194333299070318,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:12","end":"08:12","startHours":7.194333299070318,"endHours":8.194333299070319,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:12","end":"09:12","startHours":8.194333299070319,"endHours":9.194333299070319,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:12","end":"10:12","startHours":9.194333299070319,"endHours":10.194333299070319,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:12","end":"11:12","startHours":10.194333299070319,"endHours":11.194333299070319,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:12","end":"12:12","startHours":11.194333299070319,"endHours":12.194333299070319,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:12","end":"13:12","startHours":12.194333299070319,"endHours":13.194333299070319,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:12","end":"14:12","startHours":13.194333299070319,"endHours":14.194333299070319,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:12","end":"15:12","startHours":14.194333299070319,"endHours":15.194333299070319,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:12","end":"16:12","startHours":15.194333299070319,"endHours":16.19433329907032,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:12","end":"17:12","startHours":16.19433329907032,"endHours":17.19433329907032,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:12","end":"18:12","startHours":17.19433329907032,"endHours":18.19433329907032,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:12","end":"19:12","startHours":18.19433329907032,"endHours":19.19433329907032,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:12","end":"20:12","startHours":19.19433329907032,"endHours":20.19433329907032,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:12","end":"21:12","startHours":20.19433329907032,"endHours":21.19433329907032,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:12","end":"22:12","startHours":21.19433329907032,"endHours":22.19433329907032,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:12","end":"23:12","startHours":22.19433329907032,"endHours":23.19433329907032,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:12","end":"00:12","startHours":23.19433329907032,"endHours":24.19433329907032,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:12","end":"01:12","startHours":24.19433329907032,"endHours":25.19433329907032,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:12","end":"02:12","startHours":25.19433329907032,"endHours":26.19433329907032,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:12","end":"03:12","startHours":26.19433329907032,"endHours":27.19433329907032,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:12","end":"04:12","startHours":27.19433329907032,"endHours":28.19433329907032,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:12","end":"05:12","startHours":28.19433329907032,"endHours":29.19433329907032,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:12","end":"06:12","startHours":29.19433329907032,"endHours":30.19433329907032,"planetary_lord":"Jupiter"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Ānanda","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":2.111939060471193,"eotMinutes":6.239563755367786,"ayanamsa":25.9863}},"calendars":{"vikram_samvat":2209,"vikram_samvatsara":"Krodhana","saka_samvat":2074,"saka_samvatsara":"Paridhāvi","bengali_samvat":1559,"malayalam_era":1328,"nanakshahi_year":683,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","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":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Caturthī · Vikram 2209 Krodhana · Śaka 2074 Paridhāvi"},"festivals":[{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 17, 2152 CE · Perth, Australia · Vidhyamitra","description":"September 17, 2152 CE for Perth, Australia: Kṛṣṇa Caturthī, sūryodaya 06:12, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2152-09-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2152-09-17","sa":"https://sa.vidhyamitra.com/city/perth/2152-09-17","hi":"https://hi.vidhyamitra.com/city/perth/2152-09-17","x-default":"https://vidhyamitra.com/city/perth/2152-09-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:24:32.363Z","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":"2026-05-31T18:24:32.363Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:24:32.363Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}