{"id":"vidhyamitra:city-day:perth:2176-05-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2176-05-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2176-05-21","date_display":"May 21, 2176 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":2176,"month":5,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515968.770833,"kali_year":5278,"ahargana":1927503.2708,"sun":{"sidereal_longitude":33.9581,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":184.0248,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.0667,"elapsed_within_tithi_degrees":6.0667},"nakshatra":{"number":14,"name":"Citrā","pada":4,"moon_longitude":184.0248,"elapsed_within_degrees":10.6914},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":217.9828},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2176,"month":5,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2515968.770833,"ahargana":1927503.2708,"kali_year":5278,"ayanamsa_lahiri":26.317,"grahas":{"sun":{"sidereal_longitude":34.41524900000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":185.25294899999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false,"latitude":-4.2895},"mars":{"sidereal_longitude":278.56994899999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":15.80194899999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":328.55904899999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":39.427549,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":17.91784899999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":291.6009,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":111.6009,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":2176,"month":5,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515968.770833,"kali_year":5278,"ahargana":1927503.2708,"sun":{"sidereal_longitude":33.9581,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":184.0248,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.0667,"elapsed_within_tithi_degrees":6.0667},"nakshatra":{"number":14,"name":"Citrā","pada":4,"moon_longitude":184.0248,"elapsed_within_degrees":10.6914},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":217.9828},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.29,"elongation":150.067},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.29,"opposition_distance":29.933}},"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":"07:02","sunsetLocal":"17:24","solarNoonLocal":"12:13","dayLengthHours":10.364524411724005,"dayLengthDisplay":"10 Hours 21 Mins 52 Secs","nightLengthDisplay":"13 Hours 38 Mins 08 Secs","moonriseLocal":"15:43","moonsetLocal":"04:50","rahuKala":{"name":"Rāhu Kāla","start":"14:48","end":"16:06","startHours":14.808107473223032,"endHours":16.103673024688533,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:38","end":"10:55","startHours":9.62584526736103,"endHours":10.92141081882653,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:13","end":"13:31","startHours":12.21697637029203,"endHours":13.512541921757531,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:27","end":"09:48","startHours":9.453103193832296,"endHours":9.798587340889764,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:28","end":"07:45","startHours":7.466569348251863,"endHours":7.742956665897836,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.871492223234563,"endHours":12.562460517349498,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:39","end":"06:21","startHours":5.652777576200162,"endHours":6.343745870315095,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:10","end":"07:02","startHours":6.171003796786362,"endHours":7.034714164430029,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:38","startHours":13.944397105579366,"endHours":14.6353653996943,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:12","end":"17:36","startHours":17.199238576154034,"endHours":17.599238576154033,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:24","end":"17:50","startHours":17.399238576154033,"endHours":17.831093759975868,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:09","end":"18:54","startHours":17.149238576154033,"endHours":18.899238576154033,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.871492223234565,"endHours":24.562460517349496,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:02","end":"08:20","startHours":7.034714164430029,"endHours":8.330279715895529,"quality":"inauspicious"},{"name":"Udveg","start":"08:20","end":"09:38","startHours":8.330279715895529,"endHours":9.62584526736103,"quality":"inauspicious"},{"name":"Chala","start":"09:38","end":"10:55","startHours":9.62584526736103,"endHours":10.92141081882653,"quality":"neutral"},{"name":"Labha","start":"10:55","end":"12:13","startHours":10.92141081882653,"endHours":12.21697637029203,"quality":"auspicious"},{"name":"Amṛta","start":"12:13","end":"13:31","startHours":12.21697637029203,"endHours":13.512541921757531,"quality":"auspicious"},{"name":"Kāla","start":"13:31","end":"14:48","startHours":13.512541921757531,"endHours":14.808107473223032,"quality":"inauspicious"},{"name":"Śubha","start":"14:48","end":"16:06","startHours":14.808107473223032,"endHours":16.103673024688533,"quality":"auspicious"},{"name":"Roga","start":"16:06","end":"17:24","startHours":16.103673024688533,"endHours":17.399238576154033,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:24","end":"19:06","startHours":17.399238576154033,"endHours":19.103673024688533,"quality":"inauspicious"},{"name":"Śubha","start":"19:06","end":"20:48","startHours":19.103673024688533,"endHours":20.808107473223032,"quality":"auspicious"},{"name":"Roga","start":"20:48","end":"22:31","startHours":20.808107473223032,"endHours":22.51254192175753,"quality":"inauspicious"},{"name":"Udveg","start":"22:31","end":"00:13","startHours":22.51254192175753,"endHours":24.21697637029203,"quality":"inauspicious"},{"name":"Chala","start":"00:13","end":"01:55","startHours":24.21697637029203,"endHours":25.92141081882653,"quality":"neutral"},{"name":"Labha","start":"01:55","end":"03:38","startHours":25.92141081882653,"endHours":27.62584526736103,"quality":"auspicious"},{"name":"Amṛta","start":"03:38","end":"05:20","startHours":27.62584526736103,"endHours":29.33027971589553,"quality":"auspicious"},{"name":"Kāla","start":"05:20","end":"07:02","startHours":29.33027971589553,"endHours":31.034714164430028,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:02","end":"08:02","startHours":7.034714164430029,"endHours":8.034714164430028,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:02","end":"09:02","startHours":8.034714164430028,"endHours":9.034714164430028,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:02","end":"10:02","startHours":9.034714164430028,"endHours":10.034714164430028,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:02","end":"11:02","startHours":10.034714164430028,"endHours":11.034714164430028,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:02","end":"12:02","startHours":11.034714164430028,"endHours":12.034714164430028,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:02","end":"13:02","startHours":12.034714164430028,"endHours":13.034714164430028,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:02","end":"14:02","startHours":13.034714164430028,"endHours":14.034714164430028,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:02","end":"15:02","startHours":14.034714164430028,"endHours":15.034714164430028,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:02","end":"16:02","startHours":15.034714164430028,"endHours":16.034714164430028,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:02","end":"17:02","startHours":16.034714164430028,"endHours":17.034714164430028,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:02","end":"18:02","startHours":17.034714164430028,"endHours":18.034714164430028,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:02","end":"19:02","startHours":18.034714164430028,"endHours":19.034714164430028,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:02","end":"20:02","startHours":19.034714164430028,"endHours":20.034714164430028,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:02","end":"21:02","startHours":20.034714164430028,"endHours":21.034714164430028,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:02","end":"22:02","startHours":21.034714164430028,"endHours":22.034714164430028,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:02","end":"23:02","startHours":22.034714164430028,"endHours":23.034714164430028,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:02","end":"00:02","startHours":23.034714164430028,"endHours":24.034714164430028,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:02","end":"01:02","startHours":24.034714164430028,"endHours":25.034714164430028,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:02","end":"02:02","startHours":25.034714164430028,"endHours":26.034714164430028,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:02","end":"03:02","startHours":26.034714164430028,"endHours":27.034714164430028,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:02","end":"04:02","startHours":27.034714164430028,"endHours":28.034714164430028,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:02","end":"05:02","startHours":28.034714164430028,"endHours":29.034714164430028,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:02","end":"06:02","startHours":29.034714164430028,"endHours":30.034714164430028,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:02","end":"07:02","startHours":30.034714164430028,"endHours":31.034714164430028,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"North (Uttara)","chandraVasa":"North","rahuVasa":"North","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":20.301472690569746,"eotMinutes":3.539417782478063,"ayanamsa":26.317}},"calendars":{"vikram_samvat":2233,"vikram_samvatsara":"Virodhi","saka_samvat":2098,"saka_samvatsara":"Dhātṛ","bengali_samvat":1583,"malayalam_era":1352,"nanakshahi_year":707,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Trayodaśī · Vikram 2233 Virodhi · Śaka 2098 Dhātṛ"},"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":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 21, 2176 CE · Perth, Australia · Vidhyamitra","description":"May 21, 2176 CE for Perth, Australia: Śukla Trayodaśī, sūryodaya 07:02, sūryāsta 17:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2176-05-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2176-05-21","sa":"https://sa.vidhyamitra.com/city/perth/2176-05-21","hi":"https://hi.vidhyamitra.com/city/perth/2176-05-21","x-default":"https://vidhyamitra.com/city/perth/2176-05-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T14:54:05.496Z","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":"2026-06-02T14:54:05.496Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T14:54:05.496Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}