{"id":"vidhyamitra:city-day:perth:1852-05-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1852-05-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1852-05-31","date_display":"May 31, 1852 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":1852,"month":5,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2397639.770833,"kali_year":4954,"ahargana":1809174.2708,"sun":{"sidereal_longitude":48.109,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":199.6521,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":151.5431,"elapsed_within_tithi_degrees":7.5431},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":199.6521,"elapsed_within_degrees":12.9855},"yoga":{"number":19,"name":"Parigha","sum_longitude":247.7611},"karana":{"half_tithi_index":25,"name":"Taitila"},"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":1852,"month":5,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2397639.770833,"ahargana":1809174.2708,"kali_year":4954,"ayanamsa_lahiri":21.7913,"grahas":{"sun":{"sidereal_longitude":47.89668599999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":197.28018599999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false,"latitude":3.9571},"mars":{"sidereal_longitude":123.97238600000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":25.532186000000024,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":205.92348600000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":93.79308600000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":21.38698599999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":81.2408,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":261.2408,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"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":1852,"month":5,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2397639.770833,"kali_year":4954,"ahargana":1809174.2708,"sun":{"sidereal_longitude":48.109,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":199.6521,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":151.5431,"elapsed_within_tithi_degrees":7.5431},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":199.6521,"elapsed_within_degrees":12.9855},"yoga":{"number":19,"name":"Parigha","sum_longitude":247.7611},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.957,"elongation":151.543},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.957,"opposition_distance":28.457}},"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":"07:08","sunsetLocal":"17:20","solarNoonLocal":"12:14","dayLengthHours":10.209340826175236,"dayLengthDisplay":"10 Hours 12 Mins 34 Secs","nightLengthDisplay":"13 Hours 47 Mins 26 Secs","moonriseLocal":"15:32","moonsetLocal":"04:52","rahuKala":{"name":"Rāhu Kāla","start":"08:24","end":"09:41","startHours":8.405804410881956,"endHours":9.68197201415386,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:57","end":"12:14","startHours":10.958139617425765,"endHours":12.23430722069767,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:31","end":"14:47","startHours":13.510474823969574,"endHours":14.786642427241478,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:31","end":"09:51","startHours":9.511816333717606,"endHours":9.852127694590115,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:33","end":"07:50","startHours":7.555026008700686,"endHours":7.827275097398693,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:34","startHours":11.89399585982516,"endHours":12.574618581570178,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:46","end":"06:27","startHours":5.76839136412002,"endHours":6.449014085865036,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:17","end":"07:08","startHours":6.278858405428782,"endHours":7.129636807610051,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:37","startHours":13.935864025060209,"endHours":14.616486746805224,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:08","end":"17:32","startHours":17.138977633785288,"endHours":17.538977633785287,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:20","end":"17:46","startHours":17.338977633785287,"endHours":17.764366834875922,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:05","end":"18:50","startHours":17.088977633785287,"endHours":18.838977633785287,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:34","startHours":23.89399585982516,"endHours":24.574618581570178,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:08","end":"08:24","startHours":7.129636807610051,"endHours":8.405804410881956,"quality":"auspicious"},{"name":"Kāla","start":"08:24","end":"09:41","startHours":8.405804410881956,"endHours":9.68197201415386,"quality":"inauspicious"},{"name":"Śubha","start":"09:41","end":"10:57","startHours":9.68197201415386,"endHours":10.958139617425765,"quality":"auspicious"},{"name":"Roga","start":"10:57","end":"12:14","startHours":10.958139617425765,"endHours":12.23430722069767,"quality":"inauspicious"},{"name":"Udveg","start":"12:14","end":"13:31","startHours":12.23430722069767,"endHours":13.510474823969574,"quality":"inauspicious"},{"name":"Chala","start":"13:31","end":"14:47","startHours":13.510474823969574,"endHours":14.786642427241478,"quality":"neutral"},{"name":"Labha","start":"14:47","end":"16:04","startHours":14.786642427241478,"endHours":16.062810030513383,"quality":"auspicious"},{"name":"Amṛta","start":"16:04","end":"17:20","startHours":16.062810030513383,"endHours":17.338977633785287,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:20","end":"19:04","startHours":17.338977633785287,"endHours":19.062810030513383,"quality":"neutral"},{"name":"Labha","start":"19:04","end":"20:47","startHours":19.062810030513383,"endHours":20.78664242724148,"quality":"auspicious"},{"name":"Amṛta","start":"20:47","end":"22:31","startHours":20.78664242724148,"endHours":22.510474823969574,"quality":"auspicious"},{"name":"Kāla","start":"22:31","end":"00:14","startHours":22.510474823969574,"endHours":24.23430722069767,"quality":"inauspicious"},{"name":"Śubha","start":"00:14","end":"01:57","startHours":24.23430722069767,"endHours":25.958139617425765,"quality":"auspicious"},{"name":"Roga","start":"01:57","end":"03:41","startHours":25.958139617425765,"endHours":27.68197201415386,"quality":"inauspicious"},{"name":"Udveg","start":"03:41","end":"05:24","startHours":27.68197201415386,"endHours":29.405804410881956,"quality":"inauspicious"},{"name":"Chala","start":"05:24","end":"07:08","startHours":29.405804410881956,"endHours":31.12963680761005,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:08","end":"08:08","startHours":7.129636807610051,"endHours":8.129636807610051,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:08","end":"09:08","startHours":8.129636807610051,"endHours":9.129636807610051,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:08","end":"10:08","startHours":9.129636807610051,"endHours":10.129636807610051,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:08","end":"11:08","startHours":10.129636807610051,"endHours":11.129636807610051,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:08","end":"12:08","startHours":11.129636807610051,"endHours":12.129636807610051,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:08","end":"13:08","startHours":12.129636807610051,"endHours":13.129636807610051,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:08","end":"14:08","startHours":13.129636807610051,"endHours":14.129636807610051,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:08","end":"15:08","startHours":14.129636807610051,"endHours":15.129636807610051,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:08","end":"16:08","startHours":15.129636807610051,"endHours":16.12963680761005,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:08","end":"17:08","startHours":16.12963680761005,"endHours":17.12963680761005,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:08","end":"18:08","startHours":17.12963680761005,"endHours":18.12963680761005,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:08","end":"19:08","startHours":18.12963680761005,"endHours":19.12963680761005,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:08","end":"20:08","startHours":19.12963680761005,"endHours":20.12963680761005,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:08","end":"21:08","startHours":20.12963680761005,"endHours":21.12963680761005,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:08","end":"22:08","startHours":21.12963680761005,"endHours":22.12963680761005,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:08","end":"23:08","startHours":22.12963680761005,"endHours":23.12963680761005,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:08","end":"00:08","startHours":23.12963680761005,"endHours":24.12963680761005,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:08","end":"01:08","startHours":24.12963680761005,"endHours":25.12963680761005,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:08","end":"02:08","startHours":25.12963680761005,"endHours":26.12963680761005,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:08","end":"03:08","startHours":26.12963680761005,"endHours":27.12963680761005,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:08","end":"04:08","startHours":27.12963680761005,"endHours":28.12963680761005,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:08","end":"05:08","startHours":28.12963680761005,"endHours":29.12963680761005,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:08","end":"06:08","startHours":29.12963680761005,"endHours":30.12963680761005,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:08","end":"07:08","startHours":30.12963680761005,"endHours":31.12963680761005,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"North-East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":21.900750272071246,"eotMinutes":2.4995667581397525,"ayanamsa":21.7913}},"calendars":{"vikram_samvat":1909,"vikram_samvatsara":"Krodhana","saka_samvat":1774,"saka_samvatsara":"Paridhāvi","bengali_samvat":1259,"malayalam_era":1028,"nanakshahi_year":383,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Jyeṣṭha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Śukla Trayodaśī · Vikram 1909 Krodhana · Śaka 1774 Paridhāvi"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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 May 31, 1852 CE · Perth, Australia · Vidhyamitra","description":"May 31, 1852 CE for Perth, Australia: Śukla Trayodaśī, sūryodaya 07:08, sūryāsta 17:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1852-05-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1852-05-31","sa":"https://sa.vidhyamitra.com/city/perth/1852-05-31","hi":"https://hi.vidhyamitra.com/city/perth/1852-05-31","x-default":"https://vidhyamitra.com/city/perth/1852-05-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T06:16:59.477Z","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":"2026-06-03T06:16:59.477Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T06:16:59.477Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}