{"id":"vidhyamitra:city-day:perth:1833-07-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1833-07-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1833-07-20","date_display":"July 20, 1833 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":1833,"month":7,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2390749.770833,"kali_year":4935,"ahargana":1802284.2708,"sun":{"sidereal_longitude":95.4131,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":131.4179,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":36.0049,"elapsed_within_tithi_degrees":0.0049},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":131.4179,"elapsed_within_degrees":11.4179},"yoga":{"number":18,"name":"Varīyān","sum_longitude":226.831},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"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":1833,"month":7,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2390749.770833,"ahargana":1802284.2708,"kali_year":4935,"ayanamsa_lahiri":21.5278,"grahas":{"sun":{"sidereal_longitude":95.49013500000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"moon":{"sidereal_longitude":133.923335,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false,"latitude":3.1865},"mars":{"sidereal_longitude":131.66173500000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":124.16103499999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":13.855934999999988,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":52.271435,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":153.950335,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":86.3061,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":266.3061,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":1833,"month":7,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2390749.770833,"kali_year":4935,"ahargana":1802284.2708,"sun":{"sidereal_longitude":95.4131,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":131.4179,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":36.0049,"elapsed_within_tithi_degrees":0.0049},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":131.4179,"elapsed_within_degrees":11.4179},"yoga":{"number":18,"name":"Varīyān","sum_longitude":226.831},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.187,"elongation":36.005},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.187,"opposition_distance":143.995}},"eclipse_window_40days":[{"offset_days":-18,"type":"lunar","occurs":true,"moon_latitude":0.56,"opposition_distance":1.737}]},"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":"07:13","sunsetLocal":"17:32","solarNoonLocal":"12:23","dayLengthHours":10.321192562579306,"dayLengthDisplay":"10 Hours 19 Mins 16 Secs","nightLengthDisplay":"13 Hours 40 Mins 44 Secs","moonriseLocal":"09:17","moonsetLocal":"20:35","rahuKala":{"name":"Rāhu Kāla","start":"09:48","end":"11:05","startHours":9.79557221294113,"endHours":11.085721283263542,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:40","end":"14:57","startHours":13.66601942390837,"endHours":14.956168494230782,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:13","end":"08:30","startHours":7.215274072296303,"endHours":8.505423142618717,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:37","end":"09:58","startHours":9.623552336898141,"endHours":9.967592088984118,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:39","end":"07:55","startHours":7.645323762403774,"endHours":7.920555564072556,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:43","startHours":12.03183060149998,"endHours":12.719910105671932,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:50","end":"06:32","startHours":5.839115063952396,"endHours":6.527194568124349,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:21","end":"07:13","startHours":6.355174692081361,"endHours":7.215274072296303,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:06","end":"14:47","startHours":14.09606911401584,"endHours":14.784148618187794,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:20","end":"17:44","startHours":17.33646663487561,"endHours":17.736466634875608,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:32","end":"17:58","startHours":17.53646663487561,"endHours":17.96651632498308,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:17","end":"19:02","startHours":17.28646663487561,"endHours":19.03646663487561,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:43","startHours":24.03183060149998,"endHours":24.719910105671932,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:13","end":"08:30","startHours":7.215274072296303,"endHours":8.505423142618717,"quality":"inauspicious"},{"name":"Śubha","start":"08:30","end":"09:48","startHours":8.505423142618717,"endHours":9.79557221294113,"quality":"auspicious"},{"name":"Roga","start":"09:48","end":"11:05","startHours":9.79557221294113,"endHours":11.085721283263542,"quality":"inauspicious"},{"name":"Udveg","start":"11:05","end":"12:23","startHours":11.085721283263542,"endHours":12.375870353585956,"quality":"inauspicious"},{"name":"Chala","start":"12:23","end":"13:40","startHours":12.375870353585956,"endHours":13.66601942390837,"quality":"neutral"},{"name":"Labha","start":"13:40","end":"14:57","startHours":13.66601942390837,"endHours":14.956168494230782,"quality":"auspicious"},{"name":"Amṛta","start":"14:57","end":"16:15","startHours":14.956168494230782,"endHours":16.246317564553195,"quality":"auspicious"},{"name":"Kāla","start":"16:15","end":"17:32","startHours":16.246317564553195,"endHours":17.53646663487561,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:32","end":"19:15","startHours":17.53646663487561,"endHours":19.246317564553195,"quality":"auspicious"},{"name":"Amṛta","start":"19:15","end":"20:57","startHours":19.246317564553195,"endHours":20.95616849423078,"quality":"auspicious"},{"name":"Kāla","start":"20:57","end":"22:40","startHours":20.95616849423078,"endHours":22.66601942390837,"quality":"inauspicious"},{"name":"Śubha","start":"22:40","end":"00:23","startHours":22.66601942390837,"endHours":24.375870353585956,"quality":"auspicious"},{"name":"Roga","start":"00:23","end":"02:05","startHours":24.375870353585956,"endHours":26.085721283263542,"quality":"inauspicious"},{"name":"Udveg","start":"02:05","end":"03:48","startHours":26.085721283263542,"endHours":27.79557221294113,"quality":"inauspicious"},{"name":"Chala","start":"03:48","end":"05:30","startHours":27.79557221294113,"endHours":29.505423142618717,"quality":"neutral"},{"name":"Labha","start":"05:30","end":"07:13","startHours":29.505423142618717,"endHours":31.215274072296303,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:13","end":"08:13","startHours":7.215274072296303,"endHours":8.215274072296303,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:13","end":"09:13","startHours":8.215274072296303,"endHours":9.215274072296303,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:13","end":"10:13","startHours":9.215274072296303,"endHours":10.215274072296303,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:13","end":"11:13","startHours":10.215274072296303,"endHours":11.215274072296303,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:13","end":"12:13","startHours":11.215274072296303,"endHours":12.215274072296303,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:13","end":"13:13","startHours":12.215274072296303,"endHours":13.215274072296303,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:13","end":"14:13","startHours":13.215274072296303,"endHours":14.215274072296303,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:13","end":"15:13","startHours":14.215274072296303,"endHours":15.215274072296303,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:13","end":"16:13","startHours":15.215274072296303,"endHours":16.215274072296303,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:13","end":"17:13","startHours":16.215274072296303,"endHours":17.215274072296303,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:13","end":"18:13","startHours":17.215274072296303,"endHours":18.215274072296303,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:13","end":"19:13","startHours":18.215274072296303,"endHours":19.215274072296303,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:13","end":"20:13","startHours":19.215274072296303,"endHours":20.215274072296303,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:13","end":"21:13","startHours":20.215274072296303,"endHours":21.215274072296303,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:13","end":"22:13","startHours":21.215274072296303,"endHours":22.215274072296303,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:13","end":"23:13","startHours":22.215274072296303,"endHours":23.215274072296303,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:13","end":"00:13","startHours":23.215274072296303,"endHours":24.215274072296303,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:13","end":"01:13","startHours":24.215274072296303,"endHours":25.215274072296303,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:13","end":"02:13","startHours":25.215274072296303,"endHours":26.215274072296303,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:13","end":"03:13","startHours":26.215274072296303,"endHours":27.215274072296303,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:13","end":"04:13","startHours":27.215274072296303,"endHours":28.215274072296303,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:13","end":"05:13","startHours":28.215274072296303,"endHours":29.215274072296303,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:13","end":"06:13","startHours":29.215274072296303,"endHours":30.215274072296303,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:13","end":"07:13","startHours":30.215274072296303,"endHours":31.215274072296303,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","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":"East (Pūrva)","chandraVasa":"West","rahuVasa":"East","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"tropicalRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":20.752122442966733,"eotMinutes":-5.99422121515736,"ayanamsa":21.5278}},"calendars":{"vikram_samvat":1890,"vikram_samvatsara":"Parābhava","saka_samvat":1755,"saka_samvatsara":"Vijaya","bengali_samvat":1240,"malayalam_era":1009,"nanakshahi_year":364,"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 1890 Parābhava · Śaka 1755 Vijaya"},"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":"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 July 20, 1833 CE · Perth, Australia · Vidhyamitra","description":"July 20, 1833 CE for Perth, Australia: Śukla Caturthī, sūryodaya 07:13, sūryāsta 17:32.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1833-07-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1833-07-20","sa":"https://sa.vidhyamitra.com/city/perth/1833-07-20","hi":"https://hi.vidhyamitra.com/city/perth/1833-07-20","x-default":"https://vidhyamitra.com/city/perth/1833-07-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T00:37:01.360Z","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":"2026-06-04T00:37:01.360Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-04T00:37:01.360Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}