{"id":"vidhyamitra:city-day:perth:2131-08-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2131-08-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2131-08-25","date_display":"August 25, 2131 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":2131,"month":8,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499627.770833,"kali_year":5233,"ahargana":1911162.2708,"sun":{"sidereal_longitude":124.8504,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":152.6543,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":27.804,"elapsed_within_tithi_degrees":3.804},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":152.6543,"elapsed_within_degrees":5.9877},"yoga":{"number":21,"name":"Siddha","sum_longitude":277.5047},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2131,"month":8,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2499627.770833,"ahargana":1911162.2708,"kali_year":5233,"ayanamsa_lahiri":25.692,"grahas":{"sun":{"sidereal_longitude":125.81839500000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":150.858795,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false,"latitude":4.351},"mars":{"sidereal_longitude":12.562995,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":115.90079500000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":58.88629500000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":135.311595,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":193.58129499999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":77.4257,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":257.4257,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2131,"month":8,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499627.770833,"kali_year":5233,"ahargana":1911162.2708,"sun":{"sidereal_longitude":124.8504,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":152.6543,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":27.804,"elapsed_within_tithi_degrees":3.804},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":152.6543,"elapsed_within_degrees":5.9877},"yoga":{"number":21,"name":"Siddha","sum_longitude":277.5047},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.351,"elongation":27.804},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.351,"opposition_distance":152.196}},"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":"06:42","sunsetLocal":"17:55","solarNoonLocal":"12:18","dayLengthHours":11.211285267238656,"dayLengthDisplay":"11 Hours 12 Mins 41 Secs","nightLengthDisplay":"12 Hours 47 Mins 19 Secs","moonriseLocal":"07:59","moonsetLocal":"19:58","rahuKala":{"name":"Rāhu Kāla","start":"09:30","end":"10:54","startHours":9.50160208411371,"endHours":10.903012742518541,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:42","end":"15:06","startHours":13.705834059328206,"endHours":15.107244717733037,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:42","end":"08:06","startHours":6.698780767304045,"endHours":8.100191425708877,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:19","end":"09:41","startHours":9.314747329659731,"endHours":9.688456838567687,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:10","end":"07:28","startHours":7.1659176534389895,"endHours":7.464885260565354,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:41","startHours":11.930713892015417,"endHours":12.678132909831328,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:12","end":"05:57","startHours":5.203942731672225,"endHours":5.951361749488135,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:46","end":"06:42","startHours":5.764506995034157,"endHours":6.698780767304045,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:55","startHours":14.172970945463149,"endHours":14.92038996327906,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:43","end":"18:07","startHours":17.710066034542702,"endHours":18.1100660345427,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:55","end":"18:23","startHours":17.9100660345427,"endHours":18.377202920677647,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:40","end":"19:25","startHours":17.6600660345427,"endHours":19.4100660345427,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:41","startHours":23.93071389201542,"endHours":24.678132909831326,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:42","end":"08:06","startHours":6.698780767304045,"endHours":8.100191425708877,"quality":"inauspicious"},{"name":"Śubha","start":"08:06","end":"09:30","startHours":8.100191425708877,"endHours":9.50160208411371,"quality":"auspicious"},{"name":"Roga","start":"09:30","end":"10:54","startHours":9.50160208411371,"endHours":10.903012742518541,"quality":"inauspicious"},{"name":"Udveg","start":"10:54","end":"12:18","startHours":10.903012742518541,"endHours":12.304423400923373,"quality":"inauspicious"},{"name":"Chala","start":"12:18","end":"13:42","startHours":12.304423400923373,"endHours":13.705834059328206,"quality":"neutral"},{"name":"Labha","start":"13:42","end":"15:06","startHours":13.705834059328206,"endHours":15.107244717733037,"quality":"auspicious"},{"name":"Amṛta","start":"15:06","end":"16:31","startHours":15.107244717733037,"endHours":16.50865537613787,"quality":"auspicious"},{"name":"Kāla","start":"16:31","end":"17:55","startHours":16.50865537613787,"endHours":17.9100660345427,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:55","end":"19:31","startHours":17.9100660345427,"endHours":19.50865537613787,"quality":"auspicious"},{"name":"Amṛta","start":"19:31","end":"21:06","startHours":19.50865537613787,"endHours":21.10724471773304,"quality":"auspicious"},{"name":"Kāla","start":"21:06","end":"22:42","startHours":21.10724471773304,"endHours":22.705834059328204,"quality":"inauspicious"},{"name":"Śubha","start":"22:42","end":"00:18","startHours":22.705834059328204,"endHours":24.304423400923373,"quality":"auspicious"},{"name":"Roga","start":"00:18","end":"01:54","startHours":24.304423400923373,"endHours":25.90301274251854,"quality":"inauspicious"},{"name":"Udveg","start":"01:54","end":"03:30","startHours":25.90301274251854,"endHours":27.50160208411371,"quality":"inauspicious"},{"name":"Chala","start":"03:30","end":"05:06","startHours":27.50160208411371,"endHours":29.10019142570888,"quality":"neutral"},{"name":"Labha","start":"05:06","end":"06:42","startHours":29.10019142570888,"endHours":30.698780767304044,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:42","end":"07:42","startHours":6.698780767304045,"endHours":7.698780767304045,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:42","end":"08:42","startHours":7.698780767304045,"endHours":8.698780767304045,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:42","end":"09:42","startHours":8.698780767304045,"endHours":9.698780767304045,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:42","end":"10:42","startHours":9.698780767304045,"endHours":10.698780767304045,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:42","end":"11:42","startHours":10.698780767304045,"endHours":11.698780767304045,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:42","end":"12:42","startHours":11.698780767304045,"endHours":12.698780767304045,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:42","end":"13:42","startHours":12.698780767304045,"endHours":13.698780767304045,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:42","end":"14:42","startHours":13.698780767304045,"endHours":14.698780767304045,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:42","end":"15:42","startHours":14.698780767304045,"endHours":15.698780767304045,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:42","end":"16:42","startHours":15.698780767304045,"endHours":16.698780767304044,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:42","end":"17:42","startHours":16.698780767304044,"endHours":17.698780767304044,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:42","end":"18:42","startHours":17.698780767304044,"endHours":18.698780767304044,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:42","end":"19:42","startHours":18.698780767304044,"endHours":19.698780767304044,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:42","end":"20:42","startHours":19.698780767304044,"endHours":20.698780767304044,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:42","end":"21:42","startHours":20.698780767304044,"endHours":21.698780767304044,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:42","end":"22:42","startHours":21.698780767304044,"endHours":22.698780767304044,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:42","end":"23:42","startHours":22.698780767304044,"endHours":23.698780767304044,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:42","end":"00:42","startHours":23.698780767304044,"endHours":24.698780767304044,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:42","end":"01:42","startHours":24.698780767304044,"endHours":25.698780767304044,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:42","end":"02:42","startHours":25.698780767304044,"endHours":26.698780767304044,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:42","end":"03:42","startHours":26.698780767304044,"endHours":27.698780767304044,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:42","end":"04:42","startHours":27.698780767304044,"endHours":28.698780767304044,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:42","end":"05:42","startHours":28.698780767304044,"endHours":29.698780767304044,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:42","end":"06:42","startHours":29.698780767304044,"endHours":30.698780767304044,"planetary_lord":"Mercury"}],"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":"East","anandadiYoga":{"name":"Śrīvatsa","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":10.936333885445524,"eotMinutes":-1.7074040554023546,"ayanamsa":25.692}},"calendars":{"vikram_samvat":2188,"vikram_samvatsara":"Krodhi","saka_samvat":2053,"saka_samvatsara":"Khara","bengali_samvat":1538,"malayalam_era":1307,"nanakshahi_year":662,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","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":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Tṛtīyā · Vikram 2188 Krodhi · Śaka 2053 Khara"},"festivals":[{"id":"varaha-jayanti","name":"Varāha Jayantī","name_sanskrit":"वराह जयन्ती","tradition":"Vaishnava","associated_deity":"Varāha (3rd daśāvatāra of Krishna)","deity_avatara_index":12,"significance":"Varāha lifted Bhū-Devī from the cosmic ocean.","vrata":false,"detection":{"tithi_number":3,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":4,"sources":["Bhāgavata 3.13"]}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 August 25, 2131 CE · Perth, Australia · Vidhyamitra","description":"August 25, 2131 CE for Perth, Australia: Śukla Tṛtīyā, sūryodaya 06:42, sūryāsta 17:55.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2131-08-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2131-08-25","sa":"https://sa.vidhyamitra.com/city/perth/2131-08-25","hi":"https://hi.vidhyamitra.com/city/perth/2131-08-25","x-default":"https://vidhyamitra.com/city/perth/2131-08-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T10:44:06.218Z","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":"2026-05-31T10:44:06.218Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T10:44:06.218Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}