{"id":"vidhyamitra:city-day:perth:2022-05-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2022-05-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2022-05-13","date_display":"May 13, 2022 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":2022,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459712.770833,"kali_year":5124,"ahargana":1871247.2708,"sun":{"sidereal_longitude":28.0644,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":166.9517,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":138.8873,"elapsed_within_tithi_degrees":6.8873},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":166.9517,"elapsed_within_degrees":6.9517},"yoga":{"number":15,"name":"Vajra","sum_longitude":195.0161},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2022,"month":5,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459712.770833,"ahargana":1871247.2708,"kali_year":5124,"ayanamsa_lahiri":24.1654,"grahas":{"sun":{"sidereal_longitude":28.12014099999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":166.27114099999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false,"latitude":3.2004},"mars":{"sidereal_longitude":326.563541,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":40.316340999999966,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":336.224641,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":347.442041,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":300.71584099999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":32.3145,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":212.3145,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","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":2022,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459712.770833,"kali_year":5124,"ahargana":1871247.2708,"sun":{"sidereal_longitude":28.0644,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":166.9517,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":138.8873,"elapsed_within_tithi_degrees":6.8873},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":166.9517,"elapsed_within_degrees":6.9517},"yoga":{"number":15,"name":"Vajra","sum_longitude":195.0161},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.2,"elongation":138.887},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.2,"opposition_distance":41.113}},"eclipse_window_40days":[{"offset_days":3,"type":"lunar","occurs":true,"moon_latitude":0.329,"opposition_distance":2.986}]},"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":"06:56","sunsetLocal":"17:29","solarNoonLocal":"12:13","dayLengthHours":10.549931012339622,"dayLengthDisplay":"10 Hours 33 Mins 00 Secs","nightLengthDisplay":"13 Hours 27 Mins 00 Secs","moonriseLocal":"15:12","moonsetLocal":"03:38","rahuKala":{"name":"Rāhu Kāla","start":"10:54","end":"12:13","startHours":10.894667977731606,"endHours":12.21340935427406,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:51","end":"16:10","startHours":14.850892107358964,"endHours":16.169633483901414,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:15","end":"09:35","startHours":8.257185224646701,"endHours":9.575926601189153,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:24","end":"09:45","startHours":9.400094417650159,"endHours":9.751758784728146,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:23","end":"07:40","startHours":7.3780243069517315,"endHours":7.659355800614121,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.861744987196072,"endHours":12.565073721352046,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:32","end":"06:14","startHours":5.531786379792298,"endHours":6.235115113948273,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:04","end":"06:56","startHours":6.059282930409279,"endHours":6.938443848104248,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:58","end":"14:41","startHours":13.971731189663995,"endHours":14.675059923819969,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:17","end":"17:41","startHours":17.28837486044387,"endHours":17.68837486044387,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:29","end":"17:56","startHours":17.48837486044387,"endHours":17.927955319291353,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:14","end":"18:59","startHours":17.23837486044387,"endHours":18.98837486044387,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.861744987196072,"endHours":24.565073721352046,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:56","end":"08:15","startHours":6.938443848104248,"endHours":8.257185224646701,"quality":"neutral"},{"name":"Labha","start":"08:15","end":"09:35","startHours":8.257185224646701,"endHours":9.575926601189153,"quality":"auspicious"},{"name":"Amṛta","start":"09:35","end":"10:54","startHours":9.575926601189153,"endHours":10.894667977731606,"quality":"auspicious"},{"name":"Kāla","start":"10:54","end":"12:13","startHours":10.894667977731606,"endHours":12.21340935427406,"quality":"inauspicious"},{"name":"Śubha","start":"12:13","end":"13:32","startHours":12.21340935427406,"endHours":13.532150730816511,"quality":"auspicious"},{"name":"Roga","start":"13:32","end":"14:51","startHours":13.532150730816511,"endHours":14.850892107358964,"quality":"inauspicious"},{"name":"Udveg","start":"14:51","end":"16:10","startHours":14.850892107358964,"endHours":16.169633483901414,"quality":"inauspicious"},{"name":"Chala","start":"16:10","end":"17:29","startHours":16.169633483901414,"endHours":17.48837486044387,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:29","end":"19:10","startHours":17.48837486044387,"endHours":19.169633483901418,"quality":"inauspicious"},{"name":"Udveg","start":"19:10","end":"20:51","startHours":19.169633483901418,"endHours":20.850892107358963,"quality":"inauspicious"},{"name":"Chala","start":"20:51","end":"22:32","startHours":20.850892107358963,"endHours":22.53215073081651,"quality":"neutral"},{"name":"Labha","start":"22:32","end":"00:13","startHours":22.53215073081651,"endHours":24.21340935427406,"quality":"auspicious"},{"name":"Amṛta","start":"00:13","end":"01:54","startHours":24.21340935427406,"endHours":25.894667977731608,"quality":"auspicious"},{"name":"Kāla","start":"01:54","end":"03:35","startHours":25.894667977731608,"endHours":27.575926601189153,"quality":"inauspicious"},{"name":"Śubha","start":"03:35","end":"05:15","startHours":27.575926601189153,"endHours":29.2571852246467,"quality":"auspicious"},{"name":"Roga","start":"05:15","end":"06:56","startHours":29.2571852246467,"endHours":30.93844384810425,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:56","end":"07:56","startHours":6.938443848104248,"endHours":7.938443848104248,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:56","end":"08:56","startHours":7.938443848104248,"endHours":8.938443848104248,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:56","end":"09:56","startHours":8.938443848104248,"endHours":9.938443848104248,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:56","end":"10:56","startHours":9.938443848104248,"endHours":10.938443848104248,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:56","end":"11:56","startHours":10.938443848104248,"endHours":11.938443848104248,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:56","end":"12:56","startHours":11.938443848104248,"endHours":12.938443848104248,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:56","end":"13:56","startHours":12.938443848104248,"endHours":13.938443848104248,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:56","end":"14:56","startHours":13.938443848104248,"endHours":14.938443848104248,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:56","end":"15:56","startHours":14.938443848104248,"endHours":15.938443848104248,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:56","end":"16:56","startHours":15.938443848104248,"endHours":16.93844384810425,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:56","end":"17:56","startHours":16.93844384810425,"endHours":17.93844384810425,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:56","end":"18:56","startHours":17.93844384810425,"endHours":18.93844384810425,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:56","end":"19:56","startHours":18.93844384810425,"endHours":19.93844384810425,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:56","end":"20:56","startHours":19.93844384810425,"endHours":20.93844384810425,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:56","end":"21:56","startHours":20.93844384810425,"endHours":21.93844384810425,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:56","end":"22:56","startHours":21.93844384810425,"endHours":22.93844384810425,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:56","end":"23:56","startHours":22.93844384810425,"endHours":23.93844384810425,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:56","end":"00:56","startHours":23.93844384810425,"endHours":24.93844384810425,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:56","end":"01:56","startHours":24.93844384810425,"endHours":25.93844384810425,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:56","end":"02:56","startHours":25.93844384810425,"endHours":26.93844384810425,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:56","end":"03:56","startHours":26.93844384810425,"endHours":27.93844384810425,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:56","end":"04:56","startHours":27.93844384810425,"endHours":28.93844384810425,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:56","end":"05:56","startHours":28.93844384810425,"endHours":29.93844384810425,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:56","end":"06:56","startHours":29.93844384810425,"endHours":30.93844384810425,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"South-East","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":18.33871371336857,"eotMinutes":3.7534387435564067,"ayanamsa":24.1654}},"calendars":{"vikram_samvat":2079,"vikram_samvatsara":"Rākṣasa","saka_samvat":1944,"saka_samvatsara":"Śubhakṛt","bengali_samvat":1429,"malayalam_era":1198,"nanakshahi_year":553,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Dvādaśī · Vikram 2079 Rākṣasa · Śaka 1944 Śubhakṛt"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 13, 2022 CE · Perth, Australia · Vidhyamitra","description":"May 13, 2022 CE for Perth, Australia: Śukla Dvādaśī, sūryodaya 06:56, sūryāsta 17:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2022-05-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2022-05-13","sa":"https://sa.vidhyamitra.com/city/perth/2022-05-13","hi":"https://hi.vidhyamitra.com/city/perth/2022-05-13","x-default":"https://vidhyamitra.com/city/perth/2022-05-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T17:03:00.036Z","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":"2026-05-14T17:03:00.036Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T17:03:00.036Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}