{"id":"vidhyamitra:city-day:perth:2090-07-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2090-07-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2090-07-31","date_display":"July 31, 2090 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":2090,"month":7,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2484628.770833,"kali_year":5192,"ahargana":1896163.2708,"sun":{"sidereal_longitude":102.5318,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":154.7642,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":52.2324,"elapsed_within_tithi_degrees":4.2324},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":154.7642,"elapsed_within_degrees":8.0975},"yoga":{"number":20,"name":"Śiva","sum_longitude":257.2959},"karana":{"half_tithi_index":8,"name":"Bava"},"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":2090,"month":7,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2484628.770833,"ahargana":1896163.2708,"kali_year":5192,"ayanamsa_lahiri":25.1183,"grahas":{"sun":{"sidereal_longitude":103.27606700000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"moon":{"sidereal_longitude":158.401067,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false,"latitude":0.2054},"mars":{"sidereal_longitude":63.000067,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":124.08606699999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":224.257567,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":147.58596699999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":55.814967000000024,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":152.1449,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":332.1449,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"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":2090,"month":7,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2484628.770833,"kali_year":5192,"ahargana":1896163.2708,"sun":{"sidereal_longitude":102.5318,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":154.7642,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":52.2324,"elapsed_within_tithi_degrees":4.2324},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":154.7642,"elapsed_within_degrees":8.0975},"yoga":{"number":20,"name":"Śiva","sum_longitude":257.2959},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.205,"elongation":52.232},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.205,"opposition_distance":127.768}},"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":"17:40","solarNoonLocal":"12:23","dayLengthHours":10.566264533533484,"dayLengthDisplay":"10 Hours 33 Mins 59 Secs","nightLengthDisplay":"13 Hours 26 Mins 01 Secs","moonriseLocal":"09:57","moonsetLocal":"22:09","rahuKala":{"name":"Rāhu Kāla","start":"08:25","end":"09:44","startHours":8.414807041797456,"endHours":9.735590108489141,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:03","end":"12:23","startHours":11.056373175180827,"endHours":12.377156241872513,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:42","end":"15:01","startHours":13.697939308564198,"endHours":15.018722375255884,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:34","end":"09:55","startHours":9.559485699596916,"endHours":9.911694517381367,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:32","end":"07:49","startHours":7.534284997336332,"endHours":7.816052051563892,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:44","startHours":12.024947424088063,"endHours":12.729365059656962,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:41","end":"06:23","startHours":5.685188703967972,"endHours":6.389606339536871,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:13","end":"07:06","startHours":6.213501930644647,"endHours":7.09402397510577,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:51","startHours":14.13820033079476,"endHours":14.842617966363658,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:28","end":"17:52","startHours":17.460288508639255,"endHours":17.860288508639254,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:40","end":"18:06","startHours":17.660288508639255,"endHours":18.100549530869817,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:25","end":"19:10","startHours":17.410288508639255,"endHours":19.160288508639255,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:44","startHours":24.02494742408806,"endHours":24.729365059656963,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:06","end":"08:25","startHours":7.09402397510577,"endHours":8.414807041797456,"quality":"auspicious"},{"name":"Kāla","start":"08:25","end":"09:44","startHours":8.414807041797456,"endHours":9.735590108489141,"quality":"inauspicious"},{"name":"Śubha","start":"09:44","end":"11:03","startHours":9.735590108489141,"endHours":11.056373175180827,"quality":"auspicious"},{"name":"Roga","start":"11:03","end":"12:23","startHours":11.056373175180827,"endHours":12.377156241872513,"quality":"inauspicious"},{"name":"Udveg","start":"12:23","end":"13:42","startHours":12.377156241872513,"endHours":13.697939308564198,"quality":"inauspicious"},{"name":"Chala","start":"13:42","end":"15:01","startHours":13.697939308564198,"endHours":15.018722375255884,"quality":"neutral"},{"name":"Labha","start":"15:01","end":"16:20","startHours":15.018722375255884,"endHours":16.33950544194757,"quality":"auspicious"},{"name":"Amṛta","start":"16:20","end":"17:40","startHours":16.33950544194757,"endHours":17.660288508639255,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:40","end":"19:20","startHours":17.660288508639255,"endHours":19.33950544194757,"quality":"neutral"},{"name":"Labha","start":"19:20","end":"21:01","startHours":19.33950544194757,"endHours":21.018722375255884,"quality":"auspicious"},{"name":"Amṛta","start":"21:01","end":"22:42","startHours":21.018722375255884,"endHours":22.697939308564198,"quality":"auspicious"},{"name":"Kāla","start":"22:42","end":"00:23","startHours":22.697939308564198,"endHours":24.377156241872513,"quality":"inauspicious"},{"name":"Śubha","start":"00:23","end":"02:03","startHours":24.377156241872513,"endHours":26.056373175180827,"quality":"auspicious"},{"name":"Roga","start":"02:03","end":"03:44","startHours":26.056373175180827,"endHours":27.73559010848914,"quality":"inauspicious"},{"name":"Udveg","start":"03:44","end":"05:25","startHours":27.73559010848914,"endHours":29.414807041797456,"quality":"inauspicious"},{"name":"Chala","start":"05:25","end":"07:06","startHours":29.414807041797456,"endHours":31.09402397510577,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:06","end":"08:06","startHours":7.09402397510577,"endHours":8.09402397510577,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:06","end":"09:06","startHours":8.09402397510577,"endHours":9.09402397510577,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:06","end":"10:06","startHours":9.09402397510577,"endHours":10.09402397510577,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:06","end":"11:06","startHours":10.09402397510577,"endHours":11.09402397510577,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:06","end":"12:06","startHours":11.09402397510577,"endHours":12.09402397510577,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:06","end":"13:06","startHours":12.09402397510577,"endHours":13.09402397510577,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:06","end":"14:06","startHours":13.09402397510577,"endHours":14.09402397510577,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:06","end":"15:06","startHours":14.09402397510577,"endHours":15.09402397510577,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:06","end":"16:06","startHours":15.09402397510577,"endHours":16.09402397510577,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:06","end":"17:06","startHours":16.09402397510577,"endHours":17.09402397510577,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:06","end":"18:06","startHours":17.09402397510577,"endHours":18.09402397510577,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:06","end":"19:06","startHours":18.09402397510577,"endHours":19.09402397510577,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:06","end":"20:06","startHours":19.09402397510577,"endHours":20.09402397510577,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:06","end":"21:06","startHours":20.09402397510577,"endHours":21.09402397510577,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:06","end":"22:06","startHours":21.09402397510577,"endHours":22.09402397510577,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:06","end":"23:06","startHours":22.09402397510577,"endHours":23.09402397510577,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:06","end":"00:06","startHours":23.09402397510577,"endHours":24.09402397510577,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:06","end":"01:06","startHours":24.09402397510577,"endHours":25.09402397510577,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:06","end":"02:06","startHours":25.09402397510577,"endHours":26.09402397510577,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:06","end":"03:06","startHours":26.09402397510577,"endHours":27.09402397510577,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:06","end":"04:06","startHours":27.09402397510577,"endHours":28.09402397510577,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:06","end":"05:06","startHours":28.09402397510577,"endHours":29.09402397510577,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:06","end":"06:06","startHours":29.09402397510577,"endHours":30.09402397510577,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:06","end":"07:06","startHours":30.09402397510577,"endHours":31.09402397510577,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":18.163194556962928,"eotMinutes":-6.071374512350812,"ayanamsa":25.1183}},"calendars":{"vikram_samvat":2147,"vikram_samvatsara":"Rudhirodgāri","saka_samvat":2012,"saka_samvatsara":"Sādhāraṇa","bengali_samvat":1497,"malayalam_era":1266,"nanakshahi_year":621,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Pañcamī · Vikram 2147 Rudhirodgāri · Śaka 2012 Sādhāraṇa"},"festivals":[],"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 July 31, 2090 CE · Perth, Australia · Vidhyamitra","description":"July 31, 2090 CE for Perth, Australia: Śukla Pañcamī, sūryodaya 07:06, sūryāsta 17:40.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2090-07-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2090-07-31","sa":"https://sa.vidhyamitra.com/city/perth/2090-07-31","hi":"https://hi.vidhyamitra.com/city/perth/2090-07-31","x-default":"https://vidhyamitra.com/city/perth/2090-07-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T01:38:07.167Z","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":"2026-06-02T01:38:07.167Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T01:38:07.167Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}