{"id":"vidhyamitra:city-day:perth:2020-06-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2020-06-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2020-06-18","date_display":"June 18, 2020 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":2020,"month":6,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459018.770833,"kali_year":5122,"ahargana":1870553.2708,"sun":{"sidereal_longitude":62.8487,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":24.2846,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":321.4359,"elapsed_within_tithi_degrees":9.4359},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4,"moon_longitude":24.2846,"elapsed_within_degrees":10.9513},"yoga":{"number":7,"name":"Sukarma","sum_longitude":87.1333},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2020,"month":6,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459018.770833,"ahargana":1870553.2708,"kali_year":5122,"ayanamsa_lahiri":24.1388,"grahas":{"sun":{"sidereal_longitude":63.14165700000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":25.658857000000012,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false,"latitude":-3.1693},"mars":{"sidereal_longitude":329.332357,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":80.45165700000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":271.3084570000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":41.892457000000036,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":276.694657,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":69.086,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":249.086,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","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":2020,"month":6,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459018.770833,"kali_year":5122,"ahargana":1870553.2708,"sun":{"sidereal_longitude":62.8487,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":24.2846,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":321.4359,"elapsed_within_tithi_degrees":9.4359},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4,"moon_longitude":24.2846,"elapsed_within_degrees":10.9513},"yoga":{"number":7,"name":"Sukarma","sum_longitude":87.1333},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.169,"elongation":38.564},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.169,"opposition_distance":141.436}},"eclipse_window_40days":[{"offset_days":17,"type":"lunar","occurs":true,"moon_latitude":-0.833,"opposition_distance":0.084}]},"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":"07:16","sunsetLocal":"17:19","solarNoonLocal":"12:17","dayLengthHours":10.059205867169894,"dayLengthDisplay":"10 Hours 03 Mins 33 Secs","nightLengthDisplay":"13 Hours 56 Mins 27 Secs","moonriseLocal":"04:30","moonsetLocal":"15:05","rahuKala":{"name":"Rāhu Kāla","start":"13:33","end":"14:48","startHours":13.546977961177902,"endHours":14.804378694574137,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:16","end":"08:31","startHours":7.259974294196717,"endHours":8.517375027592955,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:46","end":"11:02","startHours":9.77477576098919,"endHours":11.032176494385428,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:36","end":"09:57","startHours":9.607122329869693,"endHours":9.942429192108689,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:41","end":"07:57","startHours":7.679107871995463,"endHours":7.94735336178666,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:37","startHours":11.954270365542667,"endHours":12.62488409002066,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:55","end":"06:35","startHours":5.918746845240731,"endHours":6.589360569718725,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:25","end":"07:16","startHours":6.421707138599226,"endHours":7.259974294196717,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:58","end":"14:38","startHours":13.966111538976648,"endHours":14.636725263454641,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:07","end":"17:31","startHours":17.11918016136661,"endHours":17.51918016136661,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:19","end":"17:44","startHours":17.31918016136661,"endHours":17.738313739165356,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:04","end":"18:49","startHours":17.06918016136661,"endHours":18.81918016136661,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:37","startHours":23.954270365542666,"endHours":24.62488409002066,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:16","end":"08:31","startHours":7.259974294196717,"endHours":8.517375027592955,"quality":"auspicious"},{"name":"Roga","start":"08:31","end":"09:46","startHours":8.517375027592955,"endHours":9.77477576098919,"quality":"inauspicious"},{"name":"Udveg","start":"09:46","end":"11:02","startHours":9.77477576098919,"endHours":11.032176494385428,"quality":"inauspicious"},{"name":"Chala","start":"11:02","end":"12:17","startHours":11.032176494385428,"endHours":12.289577227781663,"quality":"neutral"},{"name":"Labha","start":"12:17","end":"13:33","startHours":12.289577227781663,"endHours":13.546977961177902,"quality":"auspicious"},{"name":"Amṛta","start":"13:33","end":"14:48","startHours":13.546977961177902,"endHours":14.804378694574137,"quality":"auspicious"},{"name":"Kāla","start":"14:48","end":"16:04","startHours":14.804378694574137,"endHours":16.061779427970375,"quality":"inauspicious"},{"name":"Śubha","start":"16:04","end":"17:19","startHours":16.061779427970375,"endHours":17.31918016136661,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:19","end":"19:04","startHours":17.31918016136661,"endHours":19.06177942797037,"quality":"auspicious"},{"name":"Kāla","start":"19:04","end":"20:48","startHours":19.06177942797037,"endHours":20.804378694574137,"quality":"inauspicious"},{"name":"Śubha","start":"20:48","end":"22:33","startHours":20.804378694574137,"endHours":22.5469779611779,"quality":"auspicious"},{"name":"Roga","start":"22:33","end":"00:17","startHours":22.5469779611779,"endHours":24.289577227781663,"quality":"inauspicious"},{"name":"Udveg","start":"00:17","end":"02:02","startHours":24.289577227781663,"endHours":26.032176494385425,"quality":"inauspicious"},{"name":"Chala","start":"02:02","end":"03:46","startHours":26.032176494385425,"endHours":27.77477576098919,"quality":"neutral"},{"name":"Labha","start":"03:46","end":"05:31","startHours":27.77477576098919,"endHours":29.517375027592955,"quality":"auspicious"},{"name":"Amṛta","start":"05:31","end":"07:16","startHours":29.517375027592955,"endHours":31.259974294196716,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:16","end":"08:16","startHours":7.259974294196717,"endHours":8.259974294196716,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:16","end":"09:16","startHours":8.259974294196716,"endHours":9.259974294196716,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:16","end":"10:16","startHours":9.259974294196716,"endHours":10.259974294196716,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:16","end":"11:16","startHours":10.259974294196716,"endHours":11.259974294196716,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:16","end":"12:16","startHours":11.259974294196716,"endHours":12.259974294196716,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:16","end":"13:16","startHours":12.259974294196716,"endHours":13.259974294196716,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:16","end":"14:16","startHours":13.259974294196716,"endHours":14.259974294196716,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:16","end":"15:16","startHours":14.259974294196716,"endHours":15.259974294196716,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:16","end":"16:16","startHours":15.259974294196716,"endHours":16.259974294196716,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:16","end":"17:16","startHours":16.259974294196716,"endHours":17.259974294196716,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:16","end":"18:16","startHours":17.259974294196716,"endHours":18.259974294196716,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:16","end":"19:16","startHours":18.259974294196716,"endHours":19.259974294196716,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:16","end":"20:16","startHours":19.259974294196716,"endHours":20.259974294196716,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:16","end":"21:16","startHours":20.259974294196716,"endHours":21.259974294196716,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:16","end":"22:16","startHours":21.259974294196716,"endHours":22.259974294196716,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:16","end":"23:16","startHours":22.259974294196716,"endHours":23.259974294196716,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:16","end":"00:16","startHours":23.259974294196716,"endHours":24.259974294196716,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:16","end":"01:16","startHours":24.259974294196716,"endHours":25.259974294196716,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:16","end":"02:16","startHours":25.259974294196716,"endHours":26.259974294196716,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:16","end":"03:16","startHours":26.259974294196716,"endHours":27.259974294196716,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:16","end":"04:16","startHours":27.259974294196716,"endHours":28.259974294196716,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:16","end":"05:16","startHours":28.259974294196716,"endHours":29.259974294196716,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:16","end":"06:16","startHours":29.259974294196716,"endHours":30.259974294196716,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:16","end":"07:16","startHours":30.259974294196716,"endHours":31.259974294196716,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"drikRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":23.408529769511205,"eotMinutes":-0.8166336668997627,"ayanamsa":24.1388}},"calendars":{"vikram_samvat":2077,"vikram_samvatsara":"Pramādī","saka_samvat":1942,"saka_samvatsara":"Śārvarī","bengali_samvat":1427,"malayalam_era":1196,"nanakshahi_year":551,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Kṛṣṇa Pakṣa","solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Kṛṣṇa Dvādaśī · Vikram 2077 Pramādī · Śaka 1942 Śārvarī"},"festivals":[{"id":"mithuna-sankranti","name":"Mithuna Saṅkrānti","name_sanskrit":"मिथुन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Gemini.","vrata":false,"detection":{"sun_rashi":"Mithuna"},"precedence":5}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 June 18, 2020 CE · Perth, Australia · Vidhyamitra","description":"June 18, 2020 CE for Perth, Australia: Kṛṣṇa Dvādaśī, sūryodaya 07:16, sūryāsta 17:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2020-06-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2020-06-18","sa":"https://sa.vidhyamitra.com/city/perth/2020-06-18","hi":"https://hi.vidhyamitra.com/city/perth/2020-06-18","x-default":"https://vidhyamitra.com/city/perth/2020-06-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T03:06:48.962Z","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":"2026-05-15T03:06:48.962Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T03:06:48.962Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}