{"id":"vidhyamitra:city-day:perth:2135-08-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2135-08-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2135-08-21","date_display":"August 21, 2135 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":2135,"month":8,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2501084.770833,"kali_year":5237,"ahargana":1912619.2708,"sun":{"sidereal_longitude":120.9847,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":270.0045,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":149.0198,"elapsed_within_tithi_degrees":5.0198},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":270.0045,"elapsed_within_degrees":3.3378},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":30.9891},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2135,"month":8,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2501084.770833,"ahargana":1912619.2708,"kali_year":5237,"ayanamsa_lahiri":25.7477,"grahas":{"sun":{"sidereal_longitude":121.94372699999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":270.768727,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false,"latitude":-4.5},"mars":{"sidereal_longitude":57.627526999999986,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":141.987727,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":158.327627,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":79.34592700000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":238.204927,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":0.2269,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":180.2269,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","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":2135,"month":8,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2501084.770833,"kali_year":5237,"ahargana":1912619.2708,"sun":{"sidereal_longitude":120.9847,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":270.0045,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":149.0198,"elapsed_within_tithi_degrees":5.0198},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":270.0045,"elapsed_within_degrees":3.3378},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":30.9891},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.5,"elongation":149.02},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.5,"opposition_distance":30.98}},"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":"06:46","sunsetLocal":"17:52","solarNoonLocal":"12:19","dayLengthHours":11.095319102896042,"dayLengthDisplay":"11 Hours 05 Mins 43 Secs","nightLengthDisplay":"12 Hours 54 Mins 17 Secs","moonriseLocal":"15:17","moonsetLocal":"05:13","rahuKala":{"name":"Rāhu Kāla","start":"16:29","end":"17:52","startHours":16.483342885519264,"endHours":17.87025777338127,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:19","end":"13:43","startHours":12.322598221933248,"endHours":13.709513109795253,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:06","end":"16:29","startHours":15.096427997657258,"endHours":16.483342885519264,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:22","end":"09:44","startHours":9.36384646116097,"endHours":9.733690431257504,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:14","end":"07:32","startHours":7.237243633105894,"endHours":7.533118809183122,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:42","startHours":11.952754251836714,"endHours":12.692442192029782,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:18","end":"06:02","startHours":5.295562790099087,"endHours":6.035250730292157,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:51","end":"06:46","startHours":5.850328745243889,"endHours":6.774938670485226,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:55","startHours":14.17181807241592,"endHours":14.91150601260899,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:40","end":"18:04","startHours":17.67025777338127,"endHours":18.070257773381268,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:52","end":"18:20","startHours":17.87025777338127,"endHours":18.332562736001936,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:37","end":"19:22","startHours":17.62025777338127,"endHours":19.37025777338127,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:42","startHours":23.952754251836712,"endHours":24.692442192029784,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:46","end":"08:10","startHours":6.774938670485226,"endHours":8.161853558347232,"quality":"inauspicious"},{"name":"Chala","start":"08:10","end":"09:33","startHours":8.161853558347232,"endHours":9.548768446209237,"quality":"neutral"},{"name":"Labha","start":"09:33","end":"10:56","startHours":9.548768446209237,"endHours":10.935683334071243,"quality":"auspicious"},{"name":"Amṛta","start":"10:56","end":"12:19","startHours":10.935683334071243,"endHours":12.322598221933248,"quality":"auspicious"},{"name":"Kāla","start":"12:19","end":"13:43","startHours":12.322598221933248,"endHours":13.709513109795253,"quality":"inauspicious"},{"name":"Śubha","start":"13:43","end":"15:06","startHours":13.709513109795253,"endHours":15.096427997657258,"quality":"auspicious"},{"name":"Roga","start":"15:06","end":"16:29","startHours":15.096427997657258,"endHours":16.483342885519264,"quality":"inauspicious"},{"name":"Udveg","start":"16:29","end":"17:52","startHours":16.483342885519264,"endHours":17.87025777338127,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:52","end":"19:29","startHours":17.87025777338127,"endHours":19.483342885519264,"quality":"auspicious"},{"name":"Roga","start":"19:29","end":"21:06","startHours":19.483342885519264,"endHours":21.09642799765726,"quality":"inauspicious"},{"name":"Udveg","start":"21:06","end":"22:43","startHours":21.09642799765726,"endHours":22.709513109795253,"quality":"inauspicious"},{"name":"Chala","start":"22:43","end":"00:19","startHours":22.709513109795253,"endHours":24.322598221933248,"quality":"neutral"},{"name":"Labha","start":"00:19","end":"01:56","startHours":24.322598221933248,"endHours":25.935683334071243,"quality":"auspicious"},{"name":"Amṛta","start":"01:56","end":"03:33","startHours":25.935683334071243,"endHours":27.548768446209237,"quality":"auspicious"},{"name":"Kāla","start":"03:33","end":"05:10","startHours":27.548768446209237,"endHours":29.161853558347232,"quality":"inauspicious"},{"name":"Śubha","start":"05:10","end":"06:46","startHours":29.161853558347232,"endHours":30.774938670485227,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:46","end":"07:46","startHours":6.774938670485226,"endHours":7.774938670485226,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:46","end":"08:46","startHours":7.774938670485226,"endHours":8.774938670485227,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:46","end":"09:46","startHours":8.774938670485227,"endHours":9.774938670485227,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:46","end":"10:46","startHours":9.774938670485227,"endHours":10.774938670485227,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:46","end":"11:46","startHours":10.774938670485227,"endHours":11.774938670485227,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:46","end":"12:46","startHours":11.774938670485227,"endHours":12.774938670485227,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:46","end":"13:46","startHours":12.774938670485227,"endHours":13.774938670485227,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:46","end":"14:46","startHours":13.774938670485227,"endHours":14.774938670485227,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:46","end":"15:46","startHours":14.774938670485227,"endHours":15.774938670485227,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:46","end":"16:46","startHours":15.774938670485227,"endHours":16.774938670485227,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:46","end":"17:46","startHours":16.774938670485227,"endHours":17.774938670485227,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:46","end":"18:46","startHours":17.774938670485227,"endHours":18.774938670485227,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:46","end":"19:46","startHours":18.774938670485227,"endHours":19.774938670485227,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:46","end":"20:46","startHours":19.774938670485227,"endHours":20.774938670485227,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:46","end":"21:46","startHours":20.774938670485227,"endHours":21.774938670485227,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:46","end":"22:46","startHours":21.774938670485227,"endHours":22.774938670485227,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:46","end":"23:46","startHours":22.774938670485227,"endHours":23.774938670485227,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:46","end":"00:46","startHours":23.774938670485227,"endHours":24.774938670485227,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:46","end":"01:46","startHours":24.774938670485227,"endHours":25.774938670485227,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:46","end":"02:46","startHours":25.774938670485227,"endHours":26.774938670485227,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:46","end":"03:46","startHours":26.774938670485227,"endHours":27.774938670485227,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:46","end":"04:46","startHours":27.774938670485227,"endHours":28.774938670485227,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:46","end":"05:46","startHours":28.774938670485227,"endHours":29.774938670485227,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:46","end":"06:46","startHours":29.774938670485227,"endHours":30.774938670485227,"planetary_lord":"Jupiter"}],"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","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":12.27356494255383,"eotMinutes":-2.7978933159948465,"ayanamsa":25.7477}},"calendars":{"vikram_samvat":2192,"vikram_samvatsara":"Kīlaka","saka_samvat":2057,"saka_samvatsara":"Manmatha","bengali_samvat":1542,"malayalam_era":1311,"nanakshahi_year":666,"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":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Trayodaśī · Vikram 2192 Kīlaka · Śaka 2057 Manmatha"},"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":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 21, 2135 CE · Perth, Australia · Vidhyamitra","description":"August 21, 2135 CE for Perth, Australia: Śukla Trayodaśī, sūryodaya 06:46, sūryāsta 17:52.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2135-08-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2135-08-21","sa":"https://sa.vidhyamitra.com/city/perth/2135-08-21","hi":"https://hi.vidhyamitra.com/city/perth/2135-08-21","x-default":"https://vidhyamitra.com/city/perth/2135-08-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T02:32:03.902Z","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":"2026-06-03T02:32:03.902Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T02:32:03.902Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}