{"id":"vidhyamitra:city-day:perth:2179-07-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2179-07-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2179-07-20","date_display":"July 20, 2179 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":2179,"month":7,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517123.770833,"kali_year":5281,"ahargana":1928658.2708,"sun":{"sidereal_longitude":90.1715,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":286.7283,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":196.5568,"elapsed_within_tithi_degrees":4.5568},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":286.7283,"elapsed_within_degrees":6.7283},"yoga":{"number":2,"name":"Prīti","sum_longitude":16.8998},"karana":{"half_tithi_index":32,"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":2179,"month":7,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517123.770833,"ahargana":1928658.2708,"kali_year":5281,"ayanamsa_lahiri":26.3611,"grahas":{"sun":{"sidereal_longitude":91.04741899999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"moon":{"sidereal_longitude":285.21111900000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false,"latitude":3.7437},"mars":{"sidereal_longitude":116.86381900000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":75.22181899999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":66.30671899999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":93.650619,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":61.89301899999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":230.4035,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":50.4035,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":2179,"month":7,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517123.770833,"kali_year":5281,"ahargana":1928658.2708,"sun":{"sidereal_longitude":90.1715,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":286.7283,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":196.5568,"elapsed_within_tithi_degrees":4.5568},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":286.7283,"elapsed_within_degrees":6.7283},"yoga":{"number":2,"name":"Prīti","sum_longitude":16.8998},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.744,"elongation":163.443},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.744,"opposition_distance":16.557}},"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":"07:13","sunsetLocal":"17:32","solarNoonLocal":"12:23","dayLengthHours":10.32851667186281,"dayLengthDisplay":"10 Hours 19 Mins 43 Secs","nightLengthDisplay":"13 Hours 40 Mins 17 Secs","moonriseLocal":"18:31","moonsetLocal":"08:07","rahuKala":{"name":"Rāhu Kāla","start":"14:57","end":"16:15","startHours":14.957999521551658,"endHours":16.249064105534508,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:48","end":"11:05","startHours":9.793741185620252,"endHours":11.084805769603104,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:23","end":"13:40","startHours":12.375870353585956,"endHours":13.666934937568806,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:37","end":"09:58","startHours":9.621599241089207,"endHours":9.9658831301513,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:39","end":"07:55","startHours":7.641966878982167,"endHours":7.917393990231842,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:43","startHours":12.031586464523862,"endHours":12.72015424264805,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:50","end":"06:31","startHours":5.834476461406176,"endHours":6.523044239530363,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:21","end":"07:13","startHours":6.350902294999316,"endHours":7.21161201765455,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:06","end":"14:47","startHours":14.097289798896423,"endHours":14.78585757702061,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:20","end":"17:44","startHours":17.34012868951736,"endHours":17.74012868951736,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:32","end":"17:58","startHours":17.54012868951736,"endHours":17.97048355084498,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:17","end":"19:02","startHours":17.29012868951736,"endHours":19.04012868951736,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:43","startHours":24.031586464523862,"endHours":24.72015424264805,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:13","end":"08:30","startHours":7.21161201765455,"endHours":8.502676601637402,"quality":"inauspicious"},{"name":"Udveg","start":"08:30","end":"09:48","startHours":8.502676601637402,"endHours":9.793741185620252,"quality":"inauspicious"},{"name":"Chala","start":"09:48","end":"11:05","startHours":9.793741185620252,"endHours":11.084805769603104,"quality":"neutral"},{"name":"Labha","start":"11:05","end":"12:23","startHours":11.084805769603104,"endHours":12.375870353585956,"quality":"auspicious"},{"name":"Amṛta","start":"12:23","end":"13:40","startHours":12.375870353585956,"endHours":13.666934937568806,"quality":"auspicious"},{"name":"Kāla","start":"13:40","end":"14:57","startHours":13.666934937568806,"endHours":14.957999521551658,"quality":"inauspicious"},{"name":"Śubha","start":"14:57","end":"16:15","startHours":14.957999521551658,"endHours":16.249064105534508,"quality":"auspicious"},{"name":"Roga","start":"16:15","end":"17:32","startHours":16.249064105534508,"endHours":17.54012868951736,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:32","end":"19:15","startHours":17.54012868951736,"endHours":19.249064105534508,"quality":"inauspicious"},{"name":"Śubha","start":"19:15","end":"20:57","startHours":19.249064105534508,"endHours":20.957999521551656,"quality":"auspicious"},{"name":"Roga","start":"20:57","end":"22:40","startHours":20.957999521551656,"endHours":22.666934937568804,"quality":"inauspicious"},{"name":"Udveg","start":"22:40","end":"00:23","startHours":22.666934937568804,"endHours":24.375870353585956,"quality":"inauspicious"},{"name":"Chala","start":"00:23","end":"02:05","startHours":24.375870353585956,"endHours":26.084805769603104,"quality":"neutral"},{"name":"Labha","start":"02:05","end":"03:48","startHours":26.084805769603104,"endHours":27.793741185620252,"quality":"auspicious"},{"name":"Amṛta","start":"03:48","end":"05:30","startHours":27.793741185620252,"endHours":29.502676601637404,"quality":"auspicious"},{"name":"Kāla","start":"05:30","end":"07:13","startHours":29.502676601637404,"endHours":31.211612017654552,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:13","end":"08:13","startHours":7.21161201765455,"endHours":8.21161201765455,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:13","end":"09:13","startHours":8.21161201765455,"endHours":9.21161201765455,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:13","end":"10:13","startHours":9.21161201765455,"endHours":10.21161201765455,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:13","end":"11:13","startHours":10.21161201765455,"endHours":11.21161201765455,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:13","end":"12:13","startHours":11.21161201765455,"endHours":12.21161201765455,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:13","end":"13:13","startHours":12.21161201765455,"endHours":13.21161201765455,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:13","end":"14:13","startHours":13.21161201765455,"endHours":14.21161201765455,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:13","end":"15:13","startHours":14.21161201765455,"endHours":15.21161201765455,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:13","end":"16:13","startHours":15.21161201765455,"endHours":16.211612017654552,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:13","end":"17:13","startHours":16.211612017654552,"endHours":17.211612017654552,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:13","end":"18:13","startHours":17.211612017654552,"endHours":18.211612017654552,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:13","end":"19:13","startHours":18.211612017654552,"endHours":19.211612017654552,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:13","end":"20:13","startHours":19.211612017654552,"endHours":20.211612017654552,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:13","end":"21:13","startHours":20.211612017654552,"endHours":21.211612017654552,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:13","end":"22:13","startHours":21.211612017654552,"endHours":22.211612017654552,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:13","end":"23:13","startHours":22.211612017654552,"endHours":23.211612017654552,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:13","end":"00:13","startHours":23.211612017654552,"endHours":24.211612017654552,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:13","end":"01:13","startHours":24.211612017654552,"endHours":25.211612017654552,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:13","end":"02:13","startHours":25.211612017654552,"endHours":26.211612017654552,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:13","end":"03:13","startHours":26.211612017654552,"endHours":27.211612017654552,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:13","end":"04:13","startHours":27.211612017654552,"endHours":28.211612017654552,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:13","end":"05:13","startHours":28.211612017654552,"endHours":29.211612017654552,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:13","end":"06:13","startHours":29.211612017654552,"endHours":30.211612017654552,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:13","end":"07:13","startHours":30.211612017654552,"endHours":31.211612017654552,"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":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"tropicalRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":20.676171759995064,"eotMinutes":-5.99422121515736,"ayanamsa":26.3611}},"calendars":{"vikram_samvat":2236,"vikram_samvatsara":"Nandana","saka_samvat":2101,"saka_samvatsara":"Pramāthi","bengali_samvat":1586,"malayalam_era":1355,"nanakshahi_year":710,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","lunar_month_amanta":"Āṣāḍha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Kṛṣṇa Dvitīyā · Vikram 2236 Nandana · Śaka 2101 Pramāthi"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi_ingress":"Karka"},"precedence":2}],"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 July 20, 2179 CE · Perth, Australia · Vidhyamitra","description":"July 20, 2179 CE for Perth, Australia: Kṛṣṇa Dvitīyā, sūryodaya 07:13, sūryāsta 17:32.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2179-07-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2179-07-20","sa":"https://sa.vidhyamitra.com/city/perth/2179-07-20","hi":"https://hi.vidhyamitra.com/city/perth/2179-07-20","x-default":"https://vidhyamitra.com/city/perth/2179-07-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T16:13:27.474Z","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":"2026-05-31T16:13:27.474Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T16:13:27.474Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}