{"id":"vidhyamitra:city-day:perth:2025-07-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2025-07-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2025-07-17","date_display":"July 17, 2025 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":2025,"month":7,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460873.770833,"kali_year":5127,"ahargana":1872408.2708,"sun":{"sidereal_longitude":90.0279,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":348.0861,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":258.0581,"elapsed_within_tithi_degrees":6.0581},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":348.0861,"elapsed_within_degrees":1.4194},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":78.114},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2025,"month":7,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2460873.770833,"ahargana":1872408.2708,"kali_year":5127,"ayanamsa_lahiri":24.2098,"grahas":{"sun":{"sidereal_longitude":90.530483,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"moon":{"sidereal_longitude":347.552183,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false,"latitude":1.336},"mars":{"sidereal_longitude":142.61738300000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":111.03918299999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":74.14448299999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":49.24388299999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":337.783683,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":330.7992,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":150.7992,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":2025,"month":7,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460873.770833,"kali_year":5127,"ahargana":1872408.2708,"sun":{"sidereal_longitude":90.0279,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":348.0861,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":258.0581,"elapsed_within_tithi_degrees":6.0581},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":348.0861,"elapsed_within_degrees":1.4194},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":78.114},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.336,"elongation":101.942},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.336,"opposition_distance":78.058}},"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":"07:14","sunsetLocal":"17:31","solarNoonLocal":"12:22","dayLengthHours":10.280202515508526,"dayLengthDisplay":"10 Hours 16 Mins 49 Secs","nightLengthDisplay":"13 Hours 43 Mins 11 Secs","moonriseLocal":"23:39","moonsetLocal":"11:22","rahuKala":{"name":"Rāhu Kāla","start":"13:39","end":"14:57","startHours":13.657218362760212,"endHours":14.942243677198777,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:14","end":"08:31","startHours":7.232091790567383,"endHours":8.517117105005948,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:48","end":"11:05","startHours":9.802142419444515,"endHours":11.08716773388308,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"09:58","startHours":9.630805710852705,"endHours":9.973479128036324,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:40","end":"07:56","startHours":7.660433562046904,"endHours":7.9345722957937985,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:43","startHours":12.029519631138028,"endHours":12.714866465505262,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:52","end":"06:33","startHours":5.861398121832913,"endHours":6.546744956200148,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:23","end":"07:14","startHours":6.375408247608339,"endHours":7.232091790567383,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:05","end":"14:46","startHours":14.085560134239733,"endHours":14.770906968606969,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:19","end":"17:43","startHours":17.31229430607591,"endHours":17.712294306075908,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:31","end":"17:56","startHours":17.51229430607591,"endHours":17.940636077555432,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:16","end":"19:01","startHours":17.26229430607591,"endHours":19.01229430607591,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:43","startHours":24.029519631138026,"endHours":24.714866465505263,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:14","end":"08:31","startHours":7.232091790567383,"endHours":8.517117105005948,"quality":"auspicious"},{"name":"Roga","start":"08:31","end":"09:48","startHours":8.517117105005948,"endHours":9.802142419444515,"quality":"inauspicious"},{"name":"Udveg","start":"09:48","end":"11:05","startHours":9.802142419444515,"endHours":11.08716773388308,"quality":"inauspicious"},{"name":"Chala","start":"11:05","end":"12:22","startHours":11.08716773388308,"endHours":12.372193048321645,"quality":"neutral"},{"name":"Labha","start":"12:22","end":"13:39","startHours":12.372193048321645,"endHours":13.657218362760212,"quality":"auspicious"},{"name":"Amṛta","start":"13:39","end":"14:57","startHours":13.657218362760212,"endHours":14.942243677198777,"quality":"auspicious"},{"name":"Kāla","start":"14:57","end":"16:14","startHours":14.942243677198777,"endHours":16.227268991637345,"quality":"inauspicious"},{"name":"Śubha","start":"16:14","end":"17:31","startHours":16.227268991637345,"endHours":17.51229430607591,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:31","end":"19:14","startHours":17.51229430607591,"endHours":19.22726899163734,"quality":"auspicious"},{"name":"Kāla","start":"19:14","end":"20:57","startHours":19.22726899163734,"endHours":20.94224367719878,"quality":"inauspicious"},{"name":"Śubha","start":"20:57","end":"22:39","startHours":20.94224367719878,"endHours":22.65721836276021,"quality":"auspicious"},{"name":"Roga","start":"22:39","end":"00:22","startHours":22.65721836276021,"endHours":24.372193048321645,"quality":"inauspicious"},{"name":"Udveg","start":"00:22","end":"02:05","startHours":24.372193048321645,"endHours":26.087167733883078,"quality":"inauspicious"},{"name":"Chala","start":"02:05","end":"03:48","startHours":26.087167733883078,"endHours":27.802142419444515,"quality":"neutral"},{"name":"Labha","start":"03:48","end":"05:31","startHours":27.802142419444515,"endHours":29.517117105005948,"quality":"auspicious"},{"name":"Amṛta","start":"05:31","end":"07:14","startHours":29.517117105005948,"endHours":31.23209179056738,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:14","end":"08:14","startHours":7.232091790567383,"endHours":8.232091790567383,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:14","end":"09:14","startHours":8.232091790567383,"endHours":9.232091790567383,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:14","end":"10:14","startHours":9.232091790567383,"endHours":10.232091790567383,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:14","end":"11:14","startHours":10.232091790567383,"endHours":11.232091790567383,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:14","end":"12:14","startHours":11.232091790567383,"endHours":12.232091790567383,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:14","end":"13:14","startHours":12.232091790567383,"endHours":13.232091790567383,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:14","end":"14:14","startHours":13.232091790567383,"endHours":14.232091790567383,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:14","end":"15:14","startHours":14.232091790567383,"endHours":15.232091790567383,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:14","end":"16:14","startHours":15.232091790567383,"endHours":16.23209179056738,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:14","end":"17:14","startHours":16.23209179056738,"endHours":17.23209179056738,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:14","end":"18:14","startHours":17.23209179056738,"endHours":18.23209179056738,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:14","end":"19:14","startHours":18.23209179056738,"endHours":19.23209179056738,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:14","end":"20:14","startHours":19.23209179056738,"endHours":20.23209179056738,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:14","end":"21:14","startHours":20.23209179056738,"endHours":21.23209179056738,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:14","end":"22:14","startHours":21.23209179056738,"endHours":22.23209179056738,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:14","end":"23:14","startHours":22.23209179056738,"endHours":23.23209179056738,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:14","end":"00:14","startHours":23.23209179056738,"endHours":24.23209179056738,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:14","end":"01:14","startHours":24.23209179056738,"endHours":25.23209179056738,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:14","end":"02:14","startHours":25.23209179056738,"endHours":26.23209179056738,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:14","end":"03:14","startHours":26.23209179056738,"endHours":27.23209179056738,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:14","end":"04:14","startHours":27.23209179056738,"endHours":28.23209179056738,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:14","end":"05:14","startHours":28.23209179056738,"endHours":29.23209179056738,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:14","end":"06:14","startHours":29.23209179056738,"endHours":30.23209179056738,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:14","end":"07:14","startHours":30.23209179056738,"endHours":31.23209179056738,"planetary_lord":"Moon"}],"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":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"drikRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":21.17552360346874,"eotMinutes":-5.773582899298716,"ayanamsa":24.2098}},"calendars":{"vikram_samvat":2082,"vikram_samvatsara":"Kālayukta","saka_samvat":1947,"saka_samvatsara":"Viśvāvasu","bengali_samvat":1432,"malayalam_era":1201,"nanakshahi_year":556,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Kṛṣṇa Saptamī · Vikram 2082 Kālayukta · Śaka 1947 Viśvāvasu"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 July 17, 2025 CE · Perth, Australia · Vidhyamitra","description":"July 17, 2025 CE for Perth, Australia: Kṛṣṇa Saptamī, sūryodaya 07:14, sūryāsta 17:31.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2025-07-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2025-07-17","sa":"https://sa.vidhyamitra.com/city/perth/2025-07-17","hi":"https://hi.vidhyamitra.com/city/perth/2025-07-17","x-default":"https://vidhyamitra.com/city/perth/2025-07-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T23:43:40.198Z","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":"2026-05-14T23:43:40.198Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T23:43:40.198Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}