{"id":"vidhyamitra:city-day:perth:1920-06-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1920-06-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1920-06-15","date_display":"June 15, 1920 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":1920,"month":6,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422490.770833,"kali_year":5022,"ahargana":1834025.2708,"sun":{"sidereal_longitude":60.8353,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":40.1526,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":339.3173,"elapsed_within_tithi_degrees":3.3173},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1,"moon_longitude":40.1526,"elapsed_within_degrees":0.1526},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":100.9879},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"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":1920,"month":6,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2422490.770833,"ahargana":1834025.2708,"kali_year":5022,"ayanamsa_lahiri":22.7418,"grahas":{"sun":{"sidereal_longitude":60.87499600000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":39.19349599999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false,"latitude":-1.2118},"mars":{"sidereal_longitude":180.84429599999999,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":true},"mercury":{"sidereal_longitude":82.61449600000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":112.819096,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":56.83249599999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":133.70919600000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":204.5152,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":24.5152,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":1920,"month":6,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422490.770833,"kali_year":5022,"ahargana":1834025.2708,"sun":{"sidereal_longitude":60.8353,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":40.1526,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":339.3173,"elapsed_within_tithi_degrees":3.3173},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1,"moon_longitude":40.1526,"elapsed_within_degrees":0.1526},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":100.9879},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.212,"elongation":20.683},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.212,"opposition_distance":159.317}},"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":"07:15","sunsetLocal":"17:19","solarNoonLocal":"12:17","dayLengthHours":10.071896832186702,"dayLengthDisplay":"10 Hours 04 Mins 19 Secs","nightLengthDisplay":"13 Hours 55 Mins 41 Secs","moonriseLocal":"05:41","moonsetLocal":"15:59","rahuKala":{"name":"Rāhu Kāla","start":"14:48","end":"16:03","startHours":14.797148490802197,"endHours":16.056135594825534,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:46","end":"11:01","startHours":9.761200074708846,"endHours":11.020187178732183,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:17","end":"13:32","startHours":12.27917428275552,"endHours":13.538161386778858,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:36","end":"09:56","startHours":9.593335127505734,"endHours":9.929065021911956,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:40","end":"07:56","startHours":7.662888234669949,"endHours":7.931472150194928,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:37","startHours":11.943444388349297,"endHours":12.614904177161742,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:54","end":"06:34","startHours":5.9003062890372755,"endHours":6.571766077849722,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:24","end":"07:15","startHours":6.403901130646611,"endHours":7.243225866662169,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:38","startHours":13.957823754786638,"endHours":14.629283543599085,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:07","end":"17:31","startHours":17.11512269884887,"endHours":17.51512269884887,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:19","end":"17:44","startHours":17.31512269884887,"endHours":17.73478506685665,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:04","end":"18:49","startHours":17.06512269884887,"endHours":18.81512269884887,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:37","startHours":23.943444388349295,"endHours":24.614904177161744,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:15","end":"08:30","startHours":7.243225866662169,"endHours":8.502212970685507,"quality":"inauspicious"},{"name":"Udveg","start":"08:30","end":"09:46","startHours":8.502212970685507,"endHours":9.761200074708846,"quality":"inauspicious"},{"name":"Chala","start":"09:46","end":"11:01","startHours":9.761200074708846,"endHours":11.020187178732183,"quality":"neutral"},{"name":"Labha","start":"11:01","end":"12:17","startHours":11.020187178732183,"endHours":12.27917428275552,"quality":"auspicious"},{"name":"Amṛta","start":"12:17","end":"13:32","startHours":12.27917428275552,"endHours":13.538161386778858,"quality":"auspicious"},{"name":"Kāla","start":"13:32","end":"14:48","startHours":13.538161386778858,"endHours":14.797148490802197,"quality":"inauspicious"},{"name":"Śubha","start":"14:48","end":"16:03","startHours":14.797148490802197,"endHours":16.056135594825534,"quality":"auspicious"},{"name":"Roga","start":"16:03","end":"17:19","startHours":16.056135594825534,"endHours":17.31512269884887,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:19","end":"19:03","startHours":17.31512269884887,"endHours":19.056135594825534,"quality":"inauspicious"},{"name":"Śubha","start":"19:03","end":"20:48","startHours":19.056135594825534,"endHours":20.797148490802194,"quality":"auspicious"},{"name":"Roga","start":"20:48","end":"22:32","startHours":20.797148490802194,"endHours":22.538161386778857,"quality":"inauspicious"},{"name":"Udveg","start":"22:32","end":"00:17","startHours":22.538161386778857,"endHours":24.27917428275552,"quality":"inauspicious"},{"name":"Chala","start":"00:17","end":"02:01","startHours":24.27917428275552,"endHours":26.020187178732183,"quality":"neutral"},{"name":"Labha","start":"02:01","end":"03:46","startHours":26.020187178732183,"endHours":27.761200074708846,"quality":"auspicious"},{"name":"Amṛta","start":"03:46","end":"05:30","startHours":27.761200074708846,"endHours":29.502212970685505,"quality":"auspicious"},{"name":"Kāla","start":"05:30","end":"07:15","startHours":29.502212970685505,"endHours":31.24322586666217,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:15","end":"08:15","startHours":7.243225866662169,"endHours":8.243225866662168,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:15","end":"09:15","startHours":8.243225866662168,"endHours":9.243225866662168,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:15","end":"10:15","startHours":9.243225866662168,"endHours":10.243225866662168,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:15","end":"11:15","startHours":10.243225866662168,"endHours":11.243225866662168,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:15","end":"12:15","startHours":11.243225866662168,"endHours":12.243225866662168,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:15","end":"13:15","startHours":12.243225866662168,"endHours":13.243225866662168,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:15","end":"14:15","startHours":13.243225866662168,"endHours":14.243225866662168,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:15","end":"15:15","startHours":14.243225866662168,"endHours":15.243225866662168,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:15","end":"16:15","startHours":15.243225866662168,"endHours":16.24322586666217,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:15","end":"17:15","startHours":16.24322586666217,"endHours":17.24322586666217,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:15","end":"18:15","startHours":17.24322586666217,"endHours":18.24322586666217,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:15","end":"19:15","startHours":18.24322586666217,"endHours":19.24322586666217,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:15","end":"20:15","startHours":19.24322586666217,"endHours":20.24322586666217,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:15","end":"21:15","startHours":20.24322586666217,"endHours":21.24322586666217,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:15","end":"22:15","startHours":21.24322586666217,"endHours":22.24322586666217,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:15","end":"23:15","startHours":22.24322586666217,"endHours":23.24322586666217,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:15","end":"00:15","startHours":23.24322586666217,"endHours":24.24322586666217,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:15","end":"01:15","startHours":24.24322586666217,"endHours":25.24322586666217,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:15","end":"02:15","startHours":25.24322586666217,"endHours":26.24322586666217,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:15","end":"03:15","startHours":26.24322586666217,"endHours":27.24322586666217,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:15","end":"04:15","startHours":27.24322586666217,"endHours":28.24322586666217,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:15","end":"05:15","startHours":28.24322586666217,"endHours":29.24322586666217,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:15","end":"06:15","startHours":29.24322586666217,"endHours":30.24322586666217,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:15","end":"07:15","startHours":30.24322586666217,"endHours":31.24322586666217,"planetary_lord":"Saturn"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":23.282610981088094,"eotMinutes":-0.19245696533128553,"ayanamsa":22.7418}},"calendars":{"vikram_samvat":1977,"vikram_samvatsara":"Śrīmukha","saka_samvat":1842,"saka_samvatsara":"Raudra","bengali_samvat":1327,"malayalam_era":1096,"nanakshahi_year":451,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Jyeṣṭha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Kṛṣṇa Caturdaśī · Vikram 1977 Śrīmukha · Śaka 1842 Raudra"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","relevance":0.5}]},"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 June 15, 1920 CE · Perth, Australia · Vidhyamitra","description":"June 15, 1920 CE for Perth, Australia: Kṛṣṇa Caturdaśī, sūryodaya 07:15, sūryāsta 17:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1920-06-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1920-06-15","sa":"https://sa.vidhyamitra.com/city/perth/1920-06-15","hi":"https://hi.vidhyamitra.com/city/perth/1920-06-15","x-default":"https://vidhyamitra.com/city/perth/1920-06-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T10:32:16.787Z","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":"2026-05-31T10:32:16.787Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T10:32:16.787Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}