{"id":"vidhyamitra:city-day:perth:2180-10-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2180-10-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2180-10-19","date_display":"October 19, 2180 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":2180,"month":10,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517580.770833,"kali_year":5282,"ahargana":1929115.2708,"sun":{"sidereal_longitude":178.8121,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":177.656,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":358.8438,"elapsed_within_tithi_degrees":10.8438},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":177.656,"elapsed_within_degrees":4.3226},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":356.4681},"karana":{"half_tithi_index":59,"name":"Nāga"},"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":2180,"month":10,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517580.770833,"ahargana":1929115.2708,"kali_year":5282,"ayanamsa_lahiri":26.3786,"grahas":{"sun":{"sidereal_longitude":179.980958,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":180.09845799999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false,"latitude":-2.1478},"mars":{"sidereal_longitude":61.345057999999995,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":true},"mercury":{"sidereal_longitude":165.071458,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":109.99385799999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":151.20565799999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":82.19735800000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":206.1894,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":26.1894,"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":2180,"month":10,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517580.770833,"kali_year":5282,"ahargana":1929115.2708,"sun":{"sidereal_longitude":178.8121,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":177.656,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":358.8438,"elapsed_within_tithi_degrees":10.8438},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":177.656,"elapsed_within_degrees":4.3226},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":356.4681},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.148,"elongation":1.156},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.148,"opposition_distance":178.844}},"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":"05:31","sunsetLocal":"18:31","solarNoonLocal":"12:01","dayLengthHours":12.990569968737468,"dayLengthDisplay":"12 Hours 59 Mins 26 Secs","nightLengthDisplay":"11 Hours 00 Mins 34 Secs","moonriseLocal":"05:33","moonsetLocal":"18:30","rahuKala":{"name":"Rāhu Kāla","start":"13:38","end":"15:16","startHours":13.64058432989787,"endHours":15.264405575990052,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:31","end":"07:09","startHours":5.521478099436951,"endHours":7.145299345529135,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:46","end":"10:24","startHours":8.769120591621318,"endHours":10.3929418377135,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:33","end":"08:59","startHours":8.55261109214236,"endHours":8.985630091100276,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:04","end":"06:25","startHours":6.062751848134345,"endHours":6.409167047300678,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:35","end":"12:27","startHours":11.583744084847769,"endHours":12.449782082763601,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:47","end":"04:39","startHours":3.7894021036052887,"endHours":4.65544010152112,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:26","end":"05:31","startHours":4.438930602042163,"endHours":5.521478099436951,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:03","startHours":14.181858078595262,"endHours":15.047896076511092,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:19","end":"18:43","startHours":18.31204806817442,"endHours":18.71204806817442,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:31","end":"19:03","startHours":18.51204806817442,"endHours":19.053321816871815,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:16","end":"20:01","startHours":18.26204806817442,"endHours":20.01204806817442,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:35","end":"00:27","startHours":23.58374408484777,"endHours":24.4497820827636,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:31","end":"07:09","startHours":5.521478099436951,"endHours":7.145299345529135,"quality":"auspicious"},{"name":"Roga","start":"07:09","end":"08:46","startHours":7.145299345529135,"endHours":8.769120591621318,"quality":"inauspicious"},{"name":"Udveg","start":"08:46","end":"10:24","startHours":8.769120591621318,"endHours":10.3929418377135,"quality":"inauspicious"},{"name":"Chala","start":"10:24","end":"12:01","startHours":10.3929418377135,"endHours":12.016763083805685,"quality":"neutral"},{"name":"Labha","start":"12:01","end":"13:38","startHours":12.016763083805685,"endHours":13.64058432989787,"quality":"auspicious"},{"name":"Amṛta","start":"13:38","end":"15:16","startHours":13.64058432989787,"endHours":15.264405575990052,"quality":"auspicious"},{"name":"Kāla","start":"15:16","end":"16:53","startHours":15.264405575990052,"endHours":16.888226822082235,"quality":"inauspicious"},{"name":"Śubha","start":"16:53","end":"18:31","startHours":16.888226822082235,"endHours":18.51204806817442,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:31","end":"19:53","startHours":18.51204806817442,"endHours":19.888226822082235,"quality":"auspicious"},{"name":"Kāla","start":"19:53","end":"21:16","startHours":19.888226822082235,"endHours":21.264405575990054,"quality":"inauspicious"},{"name":"Śubha","start":"21:16","end":"22:38","startHours":21.264405575990054,"endHours":22.64058432989787,"quality":"auspicious"},{"name":"Roga","start":"22:38","end":"00:01","startHours":22.64058432989787,"endHours":24.016763083805685,"quality":"inauspicious"},{"name":"Udveg","start":"00:01","end":"01:24","startHours":24.016763083805685,"endHours":25.3929418377135,"quality":"inauspicious"},{"name":"Chala","start":"01:24","end":"02:46","startHours":25.3929418377135,"endHours":26.769120591621316,"quality":"neutral"},{"name":"Labha","start":"02:46","end":"04:09","startHours":26.769120591621316,"endHours":28.145299345529136,"quality":"auspicious"},{"name":"Amṛta","start":"04:09","end":"05:31","startHours":28.145299345529136,"endHours":29.52147809943695,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:31","end":"06:31","startHours":5.521478099436951,"endHours":6.521478099436951,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:31","end":"07:31","startHours":6.521478099436951,"endHours":7.521478099436951,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:31","end":"08:31","startHours":7.521478099436951,"endHours":8.521478099436951,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:31","end":"09:31","startHours":8.521478099436951,"endHours":9.521478099436951,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:31","end":"10:31","startHours":9.521478099436951,"endHours":10.521478099436951,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:31","end":"11:31","startHours":10.521478099436951,"endHours":11.521478099436951,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:31","end":"12:31","startHours":11.521478099436951,"endHours":12.521478099436951,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:31","end":"13:31","startHours":12.521478099436951,"endHours":13.521478099436951,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:31","end":"14:31","startHours":13.521478099436951,"endHours":14.521478099436951,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:31","end":"15:31","startHours":14.521478099436951,"endHours":15.521478099436951,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:31","end":"16:31","startHours":15.521478099436951,"endHours":16.52147809943695,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:31","end":"17:31","startHours":16.52147809943695,"endHours":17.52147809943695,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:31","end":"18:31","startHours":17.52147809943695,"endHours":18.52147809943695,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:31","end":"19:31","startHours":18.52147809943695,"endHours":19.52147809943695,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:31","end":"20:31","startHours":19.52147809943695,"endHours":20.52147809943695,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:31","end":"21:31","startHours":20.52147809943695,"endHours":21.52147809943695,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:31","end":"22:31","startHours":21.52147809943695,"endHours":22.52147809943695,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:31","end":"23:31","startHours":22.52147809943695,"endHours":23.52147809943695,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:31","end":"00:31","startHours":23.52147809943695,"endHours":24.52147809943695,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:31","end":"01:31","startHours":24.52147809943695,"endHours":25.52147809943695,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:31","end":"02:31","startHours":25.52147809943695,"endHours":26.52147809943695,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:31","end":"03:31","startHours":26.52147809943695,"endHours":27.52147809943695,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:31","end":"04:31","startHours":27.52147809943695,"endHours":28.52147809943695,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:31","end":"05:31","startHours":28.52147809943695,"endHours":29.52147809943695,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-10.171452202021417,"eotMinutes":15.552214971658897,"ayanamsa":26.3786}},"calendars":{"vikram_samvat":2237,"vikram_samvatsara":"Vijaya","saka_samvat":2102,"saka_samvatsara":"Vikrama","bengali_samvat":1587,"malayalam_era":1356,"nanakshahi_year":711,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Amāvasyā · Vikram 2237 Vijaya · Śaka 2102 Vikrama"},"festivals":[{"id":"mahalaya-amavasya","name":"Mahālaya Amāvasyā (Sarvapitṛ Amāvasyā)","name_sanskrit":"महालय अमावस्या","tradition":"Pan-Hindu","associated_deity":"Pitṛ-deva","significance":"Final day of Pitṛ-Pakṣa; tarpaṇa for all ancestors.","vrata":true,"detection":{"tithi_number":30,"tithi_paksha":"Kṛṣṇa","lunar_month":"Āśvina"},"precedence":1}],"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","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 19, 2180 CE · Perth, Australia · Vidhyamitra","description":"October 19, 2180 CE for Perth, Australia: Kṛṣṇa Amāvasyā, sūryodaya 05:31, sūryāsta 18:31.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2180-10-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2180-10-19","sa":"https://sa.vidhyamitra.com/city/perth/2180-10-19","hi":"https://hi.vidhyamitra.com/city/perth/2180-10-19","x-default":"https://vidhyamitra.com/city/perth/2180-10-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T23:00:05.410Z","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":"2026-05-31T23:00:05.410Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T23:00:05.410Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}