{"id":"vidhyamitra:city-day:perth:2024-10-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2024-10-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2024-10-20","date_display":"October 20, 2024 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":2024,"month":10,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460603.770833,"kali_year":5126,"ahargana":1872138.2708,"sun":{"sidereal_longitude":182.162,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":36.6412,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":214.4792,"elapsed_within_tithi_degrees":10.4792},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":36.6412,"elapsed_within_degrees":9.9746},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":218.8032},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2024,"month":10,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2460603.770833,"ahargana":1872138.2708,"kali_year":5126,"ayanamsa_lahiri":24.1995,"grahas":{"sun":{"sidereal_longitude":182.94529899999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":38.76499899999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false,"latitude":3.5221},"mars":{"sidereal_longitude":89.53449899999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":195.15599900000007,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":56.927999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":218.16729899999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":319.180299,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":345.1051,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":165.1051,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":2024,"month":10,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460603.770833,"kali_year":5126,"ahargana":1872138.2708,"sun":{"sidereal_longitude":182.162,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":36.6412,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":214.4792,"elapsed_within_tithi_degrees":10.4792},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":36.6412,"elapsed_within_degrees":9.9746},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":218.8032},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.522,"elongation":145.521},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.522,"opposition_distance":34.479}},"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":"05:30","sunsetLocal":"18:31","solarNoonLocal":"12:01","dayLengthHours":13.015254410645419,"dayLengthDisplay":"13 Hours 00 Mins 55 Secs","nightLengthDisplay":"10 Hours 59 Mins 05 Secs","moonriseLocal":"21:16","moonsetLocal":"07:32","rahuKala":{"name":"Rāhu Kāla","start":"16:54","end":"18:31","startHours":16.89507254992151,"endHours":18.521979351252188,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:01","end":"13:38","startHours":12.014352145929479,"endHours":13.641258947260155,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:16","end":"16:54","startHours":15.268165748590835,"endHours":16.89507254992151,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:33","end":"08:59","startHours":8.543617636424035,"endHours":8.977459450112216,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:03","end":"06:24","startHours":6.049027207716996,"endHours":6.396100658667541,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:35","end":"12:27","startHours":11.580510332241298,"endHours":12.44819395961766,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:46","end":"04:38","startHours":3.771357685854048,"endHours":4.639041313230409,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:25","end":"05:30","startHours":4.422120406386319,"endHours":5.50672494060677,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:03","startHours":14.183561214370382,"endHours":15.051244841746744,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:19","end":"18:43","startHours":18.32197935125219,"endHours":18.721979351252187,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:31","end":"19:04","startHours":18.521979351252188,"endHours":19.064281618362415,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:16","end":"20:01","startHours":18.271979351252188,"endHours":20.021979351252188,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:35","end":"00:27","startHours":23.5805103322413,"endHours":24.448193959617658,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:30","end":"07:08","startHours":5.50672494060677,"endHours":7.133631741937448,"quality":"inauspicious"},{"name":"Chala","start":"07:08","end":"08:46","startHours":7.133631741937448,"endHours":8.760538543268126,"quality":"neutral"},{"name":"Labha","start":"08:46","end":"10:23","startHours":8.760538543268126,"endHours":10.387445344598802,"quality":"auspicious"},{"name":"Amṛta","start":"10:23","end":"12:01","startHours":10.387445344598802,"endHours":12.014352145929479,"quality":"auspicious"},{"name":"Kāla","start":"12:01","end":"13:38","startHours":12.014352145929479,"endHours":13.641258947260155,"quality":"inauspicious"},{"name":"Śubha","start":"13:38","end":"15:16","startHours":13.641258947260155,"endHours":15.268165748590835,"quality":"auspicious"},{"name":"Roga","start":"15:16","end":"16:54","startHours":15.268165748590835,"endHours":16.89507254992151,"quality":"inauspicious"},{"name":"Udveg","start":"16:54","end":"18:31","startHours":16.89507254992151,"endHours":18.521979351252188,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:31","end":"19:54","startHours":18.521979351252188,"endHours":19.89507254992151,"quality":"auspicious"},{"name":"Roga","start":"19:54","end":"21:16","startHours":19.89507254992151,"endHours":21.26816574859083,"quality":"inauspicious"},{"name":"Udveg","start":"21:16","end":"22:38","startHours":21.26816574859083,"endHours":22.641258947260155,"quality":"inauspicious"},{"name":"Chala","start":"22:38","end":"00:01","startHours":22.641258947260155,"endHours":24.01435214592948,"quality":"neutral"},{"name":"Labha","start":"00:01","end":"01:23","startHours":24.01435214592948,"endHours":25.387445344598802,"quality":"auspicious"},{"name":"Amṛta","start":"01:23","end":"02:46","startHours":25.387445344598802,"endHours":26.760538543268126,"quality":"auspicious"},{"name":"Kāla","start":"02:46","end":"04:08","startHours":26.760538543268126,"endHours":28.133631741937446,"quality":"inauspicious"},{"name":"Śubha","start":"04:08","end":"05:30","startHours":28.133631741937446,"endHours":29.50672494060677,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:30","end":"06:30","startHours":5.50672494060677,"endHours":6.50672494060677,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:30","end":"07:30","startHours":6.50672494060677,"endHours":7.50672494060677,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:30","end":"08:30","startHours":7.50672494060677,"endHours":8.50672494060677,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:30","end":"09:30","startHours":8.50672494060677,"endHours":9.50672494060677,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:30","end":"10:30","startHours":9.50672494060677,"endHours":10.50672494060677,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:30","end":"11:30","startHours":10.50672494060677,"endHours":11.50672494060677,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:30","end":"12:30","startHours":11.50672494060677,"endHours":12.50672494060677,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:30","end":"13:30","startHours":12.50672494060677,"endHours":13.50672494060677,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:30","end":"14:30","startHours":13.50672494060677,"endHours":14.50672494060677,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:30","end":"15:30","startHours":14.50672494060677,"endHours":15.50672494060677,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:30","end":"16:30","startHours":15.50672494060677,"endHours":16.50672494060677,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:30","end":"17:30","startHours":16.50672494060677,"endHours":17.50672494060677,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:30","end":"18:30","startHours":17.50672494060677,"endHours":18.50672494060677,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:30","end":"19:30","startHours":18.50672494060677,"endHours":19.50672494060677,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:30","end":"20:30","startHours":19.50672494060677,"endHours":20.50672494060677,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:30","end":"21:30","startHours":20.50672494060677,"endHours":21.50672494060677,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:30","end":"22:30","startHours":21.50672494060677,"endHours":22.50672494060677,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:30","end":"23:30","startHours":22.50672494060677,"endHours":23.50672494060677,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:30","end":"00:30","startHours":23.50672494060677,"endHours":24.50672494060677,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:30","end":"01:30","startHours":24.50672494060677,"endHours":25.50672494060677,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:30","end":"02:30","startHours":25.50672494060677,"endHours":26.50672494060677,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:30","end":"03:30","startHours":26.50672494060677,"endHours":27.50672494060677,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:30","end":"04:30","startHours":27.50672494060677,"endHours":28.50672494060677,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:30","end":"05:30","startHours":28.50672494060677,"endHours":29.50672494060677,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"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":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"drikRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-10.454916103742358,"eotMinutes":15.696871244231174,"ayanamsa":24.1995}},"calendars":{"vikram_samvat":2081,"vikram_samvatsara":"Piṅgala","saka_samvat":1946,"saka_samvatsara":"Krodhi","bengali_samvat":1431,"malayalam_era":1200,"nanakshahi_year":555,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Tṛtīyā · Vikram 2081 Piṅgala · Śaka 1946 Krodhi"},"festivals":[{"id":"tula-sankranti","name":"Tulā Saṅkrānti","name_sanskrit":"तुला सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Libra.","vrata":false,"detection":{"sun_rashi":"Tulā"},"precedence":5}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","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 October 20, 2024 CE · Perth, Australia · Vidhyamitra","description":"October 20, 2024 CE for Perth, Australia: Kṛṣṇa Tṛtīyā, sūryodaya 05:30, sūryāsta 18:31.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2024-10-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2024-10-20","sa":"https://sa.vidhyamitra.com/city/perth/2024-10-20","hi":"https://hi.vidhyamitra.com/city/perth/2024-10-20","x-default":"https://vidhyamitra.com/city/perth/2024-10-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T03:38:52.137Z","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":"2026-05-15T03:38:52.137Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T03:38:52.137Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}