{"id":"vidhyamitra:city-day:perth:2173-08-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2173-08-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2173-08-12","date_display":"August 12, 2173 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":2173,"month":8,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514955.770833,"kali_year":5275,"ahargana":1926490.2708,"sun":{"sidereal_longitude":112.5471,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":151.922,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":39.3748,"elapsed_within_tithi_degrees":3.3748},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":151.922,"elapsed_within_degrees":5.2553},"yoga":{"number":20,"name":"Śiva","sum_longitude":264.4691},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"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":2173,"month":8,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2514955.770833,"ahargana":1926490.2708,"kali_year":5275,"ayanamsa_lahiri":26.2782,"grahas":{"sun":{"sidereal_longitude":113.55375300000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":149.779653,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false,"latitude":1.0382},"mars":{"sidereal_longitude":95.77185300000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":130.662353,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":221.685653,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":154.563353,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":345.572953,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":345.2745,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":165.2745,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":2173,"month":8,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514955.770833,"kali_year":5275,"ahargana":1926490.2708,"sun":{"sidereal_longitude":112.5471,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":151.922,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":39.3748,"elapsed_within_tithi_degrees":3.3748},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":151.922,"elapsed_within_degrees":5.2553},"yoga":{"number":20,"name":"Śiva","sum_longitude":264.4691},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.038,"elongation":39.375},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.038,"opposition_distance":140.625}},"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":"06:55","sunsetLocal":"17:47","solarNoonLocal":"12:21","dayLengthHours":10.866617883407153,"dayLengthDisplay":"10 Hours 52 Mins 00 Secs","nightLengthDisplay":"13 Hours 08 Mins 00 Secs","moonriseLocal":"08:47","moonsetLocal":"20:45","rahuKala":{"name":"Rāhu Kāla","start":"13:43","end":"15:04","startHours":13.713280582689947,"endHours":15.071607818115842,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:55","end":"08:17","startHours":6.921644405560476,"endHours":8.279971640986371,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:38","end":"11:00","startHours":9.638298876412264,"endHours":10.99662611183816,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:27","end":"09:49","startHours":9.45718857835548,"endHours":9.819409174469051,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:22","end":"07:40","startHours":7.374420150702441,"endHours":7.664196627593299,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:43","startHours":11.99273275115048,"endHours":12.717173943377624,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:28","end":"06:12","startHours":5.472762021106189,"endHours":6.197203213333333,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:01","end":"06:55","startHours":6.0160929152765465,"endHours":6.921644405560476,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:53","startHours":14.166056327831912,"endHours":14.890497520059055,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:35","end":"17:59","startHours":17.58826228896763,"endHours":17.98826228896763,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:47","end":"18:14","startHours":17.78826228896763,"endHours":18.241038034109593,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:32","end":"19:17","startHours":17.53826228896763,"endHours":19.28826228896763,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:43","startHours":23.992732751150477,"endHours":24.717173943377624,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:55","end":"08:17","startHours":6.921644405560476,"endHours":8.279971640986371,"quality":"auspicious"},{"name":"Roga","start":"08:17","end":"09:38","startHours":8.279971640986371,"endHours":9.638298876412264,"quality":"inauspicious"},{"name":"Udveg","start":"09:38","end":"11:00","startHours":9.638298876412264,"endHours":10.99662611183816,"quality":"inauspicious"},{"name":"Chala","start":"11:00","end":"12:21","startHours":10.99662611183816,"endHours":12.354953347264054,"quality":"neutral"},{"name":"Labha","start":"12:21","end":"13:43","startHours":12.354953347264054,"endHours":13.713280582689947,"quality":"auspicious"},{"name":"Amṛta","start":"13:43","end":"15:04","startHours":13.713280582689947,"endHours":15.071607818115842,"quality":"auspicious"},{"name":"Kāla","start":"15:04","end":"16:26","startHours":15.071607818115842,"endHours":16.429935053541733,"quality":"inauspicious"},{"name":"Śubha","start":"16:26","end":"17:47","startHours":16.429935053541733,"endHours":17.78826228896763,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:47","end":"19:26","startHours":17.78826228896763,"endHours":19.429935053541737,"quality":"auspicious"},{"name":"Kāla","start":"19:26","end":"21:04","startHours":19.429935053541737,"endHours":21.07160781811584,"quality":"inauspicious"},{"name":"Śubha","start":"21:04","end":"22:43","startHours":21.07160781811584,"endHours":22.713280582689947,"quality":"auspicious"},{"name":"Roga","start":"22:43","end":"00:21","startHours":22.713280582689947,"endHours":24.354953347264054,"quality":"inauspicious"},{"name":"Udveg","start":"00:21","end":"02:00","startHours":24.354953347264054,"endHours":25.99662611183816,"quality":"inauspicious"},{"name":"Chala","start":"02:00","end":"03:38","startHours":25.99662611183816,"endHours":27.638298876412264,"quality":"neutral"},{"name":"Labha","start":"03:38","end":"05:17","startHours":27.638298876412264,"endHours":29.27997164098637,"quality":"auspicious"},{"name":"Amṛta","start":"05:17","end":"06:55","startHours":29.27997164098637,"endHours":30.921644405560478,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:55","end":"07:55","startHours":6.921644405560476,"endHours":7.921644405560476,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:55","end":"08:55","startHours":7.921644405560476,"endHours":8.921644405560476,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:55","end":"09:55","startHours":8.921644405560476,"endHours":9.921644405560476,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:55","end":"10:55","startHours":9.921644405560476,"endHours":10.921644405560476,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:55","end":"11:55","startHours":10.921644405560476,"endHours":11.921644405560476,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:55","end":"12:55","startHours":11.921644405560476,"endHours":12.921644405560476,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:55","end":"13:55","startHours":12.921644405560476,"endHours":13.921644405560476,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:55","end":"14:55","startHours":13.921644405560476,"endHours":14.921644405560476,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:55","end":"15:55","startHours":14.921644405560476,"endHours":15.921644405560476,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:55","end":"16:55","startHours":15.921644405560476,"endHours":16.921644405560478,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:55","end":"17:55","startHours":16.921644405560478,"endHours":17.921644405560478,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:55","end":"18:55","startHours":17.921644405560478,"endHours":18.921644405560478,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:55","end":"19:55","startHours":18.921644405560478,"endHours":19.921644405560478,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:55","end":"20:55","startHours":19.921644405560478,"endHours":20.921644405560478,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:55","end":"21:55","startHours":20.921644405560478,"endHours":21.921644405560478,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:55","end":"22:55","startHours":21.921644405560478,"endHours":22.921644405560478,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:55","end":"23:55","startHours":22.921644405560478,"endHours":23.921644405560478,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:55","end":"00:55","startHours":23.921644405560478,"endHours":24.921644405560478,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:55","end":"01:55","startHours":24.921644405560478,"endHours":25.921644405560478,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:55","end":"02:55","startHours":25.921644405560478,"endHours":26.921644405560478,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:55","end":"03:55","startHours":26.921644405560478,"endHours":27.921644405560478,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:55","end":"04:55","startHours":27.921644405560478,"endHours":28.921644405560478,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:55","end":"05:55","startHours":28.921644405560478,"endHours":29.921644405560478,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:55","end":"06:55","startHours":29.921644405560478,"endHours":30.921644405560478,"planetary_lord":"Moon"}],"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":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":14.865450405549343,"eotMinutes":-4.739200835843176,"ayanamsa":26.2782}},"calendars":{"vikram_samvat":2230,"vikram_samvatsara":"Vyaya","saka_samvat":2095,"saka_samvatsara":"Śrīmukha","bengali_samvat":1580,"malayalam_era":1349,"nanakshahi_year":704,"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 Caturthī · Vikram 2230 Vyaya · Śaka 2095 Śrīmukha"},"festivals":[{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"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 August 12, 2173 CE · Perth, Australia · Vidhyamitra","description":"August 12, 2173 CE for Perth, Australia: Śukla Caturthī, sūryodaya 06:55, sūryāsta 17:47.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2173-08-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2173-08-12","sa":"https://sa.vidhyamitra.com/city/perth/2173-08-12","hi":"https://hi.vidhyamitra.com/city/perth/2173-08-12","x-default":"https://vidhyamitra.com/city/perth/2173-08-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T19:07:06.362Z","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":"2026-05-31T19:07:06.362Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T19:07:06.362Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}