{"id":"vidhyamitra:city-day:perth:2004-05-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2004-05-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2004-05-17","date_display":"May 17, 2004 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":2004,"month":5,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453142.770833,"kali_year":5106,"ahargana":1864677.2708,"sun":{"sidereal_longitude":32.5284,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":8.3739,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":335.8455,"elapsed_within_tithi_degrees":11.8455},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":8.3739,"elapsed_within_degrees":8.3739},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":40.9023},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"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":2004,"month":5,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2453142.770833,"ahargana":1864677.2708,"kali_year":5106,"ayanamsa_lahiri":23.9141,"grahas":{"sun":{"sidereal_longitude":32.569564000000014,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":8.659163999999976,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false,"latitude":-0.9386},"mars":{"sidereal_longitude":72.136664,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":6.659064000000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":135.36156400000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":62.229264,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":76.385964,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":20.4247,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":200.4247,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":2004,"month":5,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453142.770833,"kali_year":5106,"ahargana":1864677.2708,"sun":{"sidereal_longitude":32.5284,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":8.3739,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":335.8455,"elapsed_within_tithi_degrees":11.8455},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":8.3739,"elapsed_within_degrees":8.3739},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":40.9023},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.939,"elongation":24.154},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.939,"opposition_distance":155.846}},"eclipse_window_40days":[{"offset_days":-12,"type":"lunar","occurs":true,"moon_latitude":-0.097,"opposition_distance":1.287},{"offset_days":2,"type":"solar","occurs":true,"moon_latitude":1.066,"elongation":0.412}]},"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":"06:59","sunsetLocal":"17:26","solarNoonLocal":"12:13","dayLengthHours":10.453544540328828,"dayLengthDisplay":"10 Hours 27 Mins 13 Secs","nightLengthDisplay":"13 Hours 32 Mins 47 Secs","moonriseLocal":"05:06","moonsetLocal":"16:09","rahuKala":{"name":"Rāhu Kāla","start":"08:18","end":"09:36","startHours":8.293872804143138,"endHours":9.600565871684243,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:54","end":"12:13","startHours":10.907258939225345,"endHours":12.213952006766448,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:31","end":"14:50","startHours":13.520645074307552,"endHours":14.827338141848657,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:46","startHours":9.426340129345428,"endHours":9.774791614023055,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:25","end":"07:42","startHours":7.4227440924490695,"endHours":7.701505280191172,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.865500522088821,"endHours":12.562403491444075,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:36","end":"06:17","startHours":5.593373797891524,"endHours":6.290276767246779,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:07","end":"06:59","startHours":6.116051024907966,"endHours":6.987179736602035,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:39","startHours":13.956209430154587,"endHours":14.653112399509842,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:14","end":"17:38","startHours":17.240724276930862,"endHours":17.64072427693086,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:26","end":"17:53","startHours":17.44072427693086,"endHours":17.876288632777896,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:11","end":"18:56","startHours":17.19072427693086,"endHours":18.94072427693086,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.86550052208882,"endHours":24.562403491444076,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:59","end":"08:18","startHours":6.987179736602035,"endHours":8.293872804143138,"quality":"auspicious"},{"name":"Kāla","start":"08:18","end":"09:36","startHours":8.293872804143138,"endHours":9.600565871684243,"quality":"inauspicious"},{"name":"Śubha","start":"09:36","end":"10:54","startHours":9.600565871684243,"endHours":10.907258939225345,"quality":"auspicious"},{"name":"Roga","start":"10:54","end":"12:13","startHours":10.907258939225345,"endHours":12.213952006766448,"quality":"inauspicious"},{"name":"Udveg","start":"12:13","end":"13:31","startHours":12.213952006766448,"endHours":13.520645074307552,"quality":"inauspicious"},{"name":"Chala","start":"13:31","end":"14:50","startHours":13.520645074307552,"endHours":14.827338141848657,"quality":"neutral"},{"name":"Labha","start":"14:50","end":"16:08","startHours":14.827338141848657,"endHours":16.134031209389757,"quality":"auspicious"},{"name":"Amṛta","start":"16:08","end":"17:26","startHours":16.134031209389757,"endHours":17.44072427693086,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:26","end":"19:08","startHours":17.44072427693086,"endHours":19.134031209389757,"quality":"neutral"},{"name":"Labha","start":"19:08","end":"20:50","startHours":19.134031209389757,"endHours":20.827338141848657,"quality":"auspicious"},{"name":"Amṛta","start":"20:50","end":"22:31","startHours":20.827338141848657,"endHours":22.520645074307552,"quality":"auspicious"},{"name":"Kāla","start":"22:31","end":"00:13","startHours":22.520645074307552,"endHours":24.213952006766448,"quality":"inauspicious"},{"name":"Śubha","start":"00:13","end":"01:54","startHours":24.213952006766448,"endHours":25.907258939225343,"quality":"auspicious"},{"name":"Roga","start":"01:54","end":"03:36","startHours":25.907258939225343,"endHours":27.60056587168424,"quality":"inauspicious"},{"name":"Udveg","start":"03:36","end":"05:18","startHours":27.60056587168424,"endHours":29.293872804143138,"quality":"inauspicious"},{"name":"Chala","start":"05:18","end":"06:59","startHours":29.293872804143138,"endHours":30.987179736602034,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:59","end":"07:59","startHours":6.987179736602035,"endHours":7.987179736602035,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:59","end":"08:59","startHours":7.987179736602035,"endHours":8.987179736602034,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:59","end":"09:59","startHours":8.987179736602034,"endHours":9.987179736602034,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:59","end":"10:59","startHours":9.987179736602034,"endHours":10.987179736602034,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:59","end":"11:59","startHours":10.987179736602034,"endHours":11.987179736602034,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:59","end":"12:59","startHours":11.987179736602034,"endHours":12.987179736602034,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:59","end":"13:59","startHours":12.987179736602034,"endHours":13.987179736602034,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:59","end":"14:59","startHours":13.987179736602034,"endHours":14.987179736602034,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:59","end":"15:59","startHours":14.987179736602034,"endHours":15.987179736602034,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:59","end":"16:59","startHours":15.987179736602034,"endHours":16.987179736602034,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:59","end":"17:59","startHours":16.987179736602034,"endHours":17.987179736602034,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:59","end":"18:59","startHours":17.987179736602034,"endHours":18.987179736602034,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:59","end":"19:59","startHours":18.987179736602034,"endHours":19.987179736602034,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:59","end":"20:59","startHours":19.987179736602034,"endHours":20.987179736602034,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:59","end":"21:59","startHours":20.987179736602034,"endHours":21.987179736602034,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:59","end":"22:59","startHours":21.987179736602034,"endHours":22.987179736602034,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:59","end":"23:59","startHours":22.987179736602034,"endHours":23.987179736602034,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:59","end":"00:59","startHours":23.987179736602034,"endHours":24.987179736602034,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:59","end":"01:59","startHours":24.987179736602034,"endHours":25.987179736602034,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:59","end":"02:59","startHours":25.987179736602034,"endHours":26.987179736602034,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:59","end":"03:59","startHours":26.987179736602034,"endHours":27.987179736602034,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:59","end":"04:59","startHours":27.987179736602034,"endHours":28.987179736602034,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:59","end":"05:59","startHours":28.987179736602034,"endHours":29.987179736602034,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:59","end":"06:59","startHours":29.987179736602034,"endHours":30.987179736602034,"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"drikRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":19.365969829126033,"eotMinutes":3.7208795940131294,"ayanamsa":23.9141}},"calendars":{"vikram_samvat":2061,"vikram_samvatsara":"Hemalambī","saka_samvat":1926,"saka_samvatsara":"Tāraṇa","bengali_samvat":1411,"malayalam_era":1180,"nanakshahi_year":535,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Trayodaśī · Vikram 2061 Hemalambī · Śaka 1926 Tāraṇa"},"festivals":[{"id":"vrishabha-sankranti","name":"Vṛṣabha Saṅkrānti","name_sanskrit":"वृषभ सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Taurus.","vrata":false,"detection":{"sun_rashi":"Vṛṣabha"},"precedence":5},{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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":"-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 May 17, 2004 CE · Perth, Australia · Vidhyamitra","description":"May 17, 2004 CE for Perth, Australia: Kṛṣṇa Trayodaśī, sūryodaya 06:59, sūryāsta 17:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2004-05-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2004-05-17","sa":"https://sa.vidhyamitra.com/city/perth/2004-05-17","hi":"https://hi.vidhyamitra.com/city/perth/2004-05-17","x-default":"https://vidhyamitra.com/city/perth/2004-05-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-23T01:34:06.950Z","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":"2026-05-23T01:34:06.950Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-23T01:34:06.950Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}