{"id":"vidhyamitra:city-day:perth:2007-07-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2007-07-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2007-07-31","date_display":"July 31, 2007 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":2007,"month":7,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2454312.770833,"kali_year":5109,"ahargana":1865847.2708,"sun":{"sidereal_longitude":102.9848,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":294.6113,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":191.6265,"elapsed_within_tithi_degrees":11.6265},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1,"moon_longitude":294.6113,"elapsed_within_degrees":1.278},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":37.5961},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2007,"month":7,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2454312.770833,"ahargana":1865847.2708,"kali_year":5109,"ayanamsa_lahiri":23.9589,"grahas":{"sun":{"sidereal_longitude":103.530461,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"moon":{"sidereal_longitude":296.2160610000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false,"latitude":-1.8159},"mars":{"sidereal_longitude":31.176761,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":87.27716099999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":226.77186099999994,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":128.641861,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":121.61706100000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":318.4325,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":138.4325,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva 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":2007,"month":7,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2454312.770833,"kali_year":5109,"ahargana":1865847.2708,"sun":{"sidereal_longitude":102.9848,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":294.6113,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":191.6265,"elapsed_within_tithi_degrees":11.6265},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1,"moon_longitude":294.6113,"elapsed_within_degrees":1.278},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":37.5961},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.816,"elongation":168.373},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.816,"opposition_distance":11.627}},"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":"07:06","sunsetLocal":"17:39","solarNoonLocal":"12:23","dayLengthHours":10.544566163564665,"dayLengthDisplay":"10 Hours 32 Mins 40 Secs","nightLengthDisplay":"13 Hours 27 Mins 20 Secs","moonriseLocal":"18:33","moonsetLocal":"07:54","rahuKala":{"name":"Rāhu Kāla","start":"15:01","end":"16:20","startHours":15.01329778276368,"endHours":16.331368553209263,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:44","end":"11:04","startHours":9.741014700981347,"endHours":11.059085471426929,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:23","end":"13:42","startHours":12.377156241872513,"endHours":13.695227012318096,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:34","end":"09:55","startHours":9.565271931588603,"endHours":9.91675747037409,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:33","end":"07:50","startHours":7.5442300835720415,"endHours":7.8254185146004325,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:44","startHours":12.025670703087023,"endHours":12.728641780658002,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:42","end":"06:24","startHours":5.698931004948225,"endHours":6.401902082519203,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:14","end":"07:06","startHours":6.226159313126459,"endHours":7.104873160090181,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:50","startHours":14.134583935799958,"endHours":14.837555013370935,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:27","end":"17:51","startHours":17.449439323654847,"endHours":17.849439323654845,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:39","end":"18:05","startHours":17.649439323654846,"endHours":18.088796247136706,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:24","end":"19:09","startHours":17.399439323654846,"endHours":19.149439323654846,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:44","startHours":24.025670703087023,"endHours":24.728641780658002,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:06","end":"08:25","startHours":7.104873160090181,"endHours":8.422943930535764,"quality":"inauspicious"},{"name":"Udveg","start":"08:25","end":"09:44","startHours":8.422943930535764,"endHours":9.741014700981347,"quality":"inauspicious"},{"name":"Chala","start":"09:44","end":"11:04","startHours":9.741014700981347,"endHours":11.059085471426929,"quality":"neutral"},{"name":"Labha","start":"11:04","end":"12:23","startHours":11.059085471426929,"endHours":12.377156241872513,"quality":"auspicious"},{"name":"Amṛta","start":"12:23","end":"13:42","startHours":12.377156241872513,"endHours":13.695227012318096,"quality":"auspicious"},{"name":"Kāla","start":"13:42","end":"15:01","startHours":13.695227012318096,"endHours":15.01329778276368,"quality":"inauspicious"},{"name":"Śubha","start":"15:01","end":"16:20","startHours":15.01329778276368,"endHours":16.331368553209263,"quality":"auspicious"},{"name":"Roga","start":"16:20","end":"17:39","startHours":16.331368553209263,"endHours":17.649439323654846,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:39","end":"19:20","startHours":17.649439323654846,"endHours":19.331368553209263,"quality":"inauspicious"},{"name":"Śubha","start":"19:20","end":"21:01","startHours":19.331368553209263,"endHours":21.01329778276368,"quality":"auspicious"},{"name":"Roga","start":"21:01","end":"22:42","startHours":21.01329778276368,"endHours":22.695227012318096,"quality":"inauspicious"},{"name":"Udveg","start":"22:42","end":"00:23","startHours":22.695227012318096,"endHours":24.377156241872513,"quality":"inauspicious"},{"name":"Chala","start":"00:23","end":"02:04","startHours":24.377156241872513,"endHours":26.059085471426933,"quality":"neutral"},{"name":"Labha","start":"02:04","end":"03:44","startHours":26.059085471426933,"endHours":27.741014700981346,"quality":"auspicious"},{"name":"Amṛta","start":"03:44","end":"05:25","startHours":27.741014700981346,"endHours":29.422943930535766,"quality":"auspicious"},{"name":"Kāla","start":"05:25","end":"07:06","startHours":29.422943930535766,"endHours":31.10487316009018,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:06","end":"08:06","startHours":7.104873160090181,"endHours":8.10487316009018,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:06","end":"09:06","startHours":8.10487316009018,"endHours":9.10487316009018,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:06","end":"10:06","startHours":9.10487316009018,"endHours":10.10487316009018,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:06","end":"11:06","startHours":10.10487316009018,"endHours":11.10487316009018,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:06","end":"12:06","startHours":11.10487316009018,"endHours":12.10487316009018,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:06","end":"13:06","startHours":12.10487316009018,"endHours":13.10487316009018,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:06","end":"14:06","startHours":13.10487316009018,"endHours":14.10487316009018,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:06","end":"15:06","startHours":14.10487316009018,"endHours":15.10487316009018,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:06","end":"16:06","startHours":15.10487316009018,"endHours":16.10487316009018,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:06","end":"17:06","startHours":16.10487316009018,"endHours":17.10487316009018,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:06","end":"18:06","startHours":17.10487316009018,"endHours":18.10487316009018,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:06","end":"19:06","startHours":18.10487316009018,"endHours":19.10487316009018,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:06","end":"20:06","startHours":19.10487316009018,"endHours":20.10487316009018,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:06","end":"21:06","startHours":20.10487316009018,"endHours":21.10487316009018,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:06","end":"22:06","startHours":21.10487316009018,"endHours":22.10487316009018,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:06","end":"23:06","startHours":22.10487316009018,"endHours":23.10487316009018,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:06","end":"00:06","startHours":23.10487316009018,"endHours":24.10487316009018,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:06","end":"01:06","startHours":24.10487316009018,"endHours":25.10487316009018,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:06","end":"02:06","startHours":25.10487316009018,"endHours":26.10487316009018,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:06","end":"03:06","startHours":26.10487316009018,"endHours":27.10487316009018,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:06","end":"04:06","startHours":27.10487316009018,"endHours":28.10487316009018,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:06","end":"05:06","startHours":28.10487316009018,"endHours":29.10487316009018,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:06","end":"06:06","startHours":29.10487316009018,"endHours":30.10487316009018,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:06","end":"07:06","startHours":30.10487316009018,"endHours":31.10487316009018,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":18.396274011069732,"eotMinutes":-6.071374512350812,"ayanamsa":23.9589}},"calendars":{"vikram_samvat":2064,"vikram_samvatsara":"Śārvarī","saka_samvat":1929,"saka_samvatsara":"Sarvajit","bengali_samvat":1414,"malayalam_era":1183,"nanakshahi_year":538,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Kṛṣṇa Pratipada · Vikram 2064 Śārvarī · Śaka 1929 Sarvajit"},"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":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 31, 2007 CE · Perth, Australia · Vidhyamitra","description":"July 31, 2007 CE for Perth, Australia: Kṛṣṇa Pratipada, sūryodaya 07:06, sūryāsta 17:39.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2007-07-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2007-07-31","sa":"https://sa.vidhyamitra.com/city/perth/2007-07-31","hi":"https://hi.vidhyamitra.com/city/perth/2007-07-31","x-default":"https://vidhyamitra.com/city/perth/2007-07-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T05:44:22.056Z","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":"2026-05-16T05:44:22.056Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T05:44:22.056Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}