{"id":"vidhyamitra:city-day:perth:2089-10-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2089-10-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2089-10-17","date_display":"October 17, 2089 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":2089,"month":10,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2484341.770833,"kali_year":5191,"ahargana":1895876.2708,"sun":{"sidereal_longitude":178.3618,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":328.5706,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.2089,"elapsed_within_tithi_degrees":6.2089},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":328.5706,"elapsed_within_degrees":8.5706},"yoga":{"number":12,"name":"Dhruva","sum_longitude":146.9324},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2089,"month":10,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2484341.770833,"ahargana":1895876.2708,"kali_year":5191,"ayanamsa_lahiri":25.1074,"grahas":{"sun":{"sidereal_longitude":179.31103299999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":330.363833,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false,"latitude":1.4474},"mars":{"sidereal_longitude":207.27633300000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":179.12803299999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":206.20863299999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":162.93653300000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":44.99633299999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":167.3516,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":347.3516,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"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":2089,"month":10,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2484341.770833,"kali_year":5191,"ahargana":1895876.2708,"sun":{"sidereal_longitude":178.3618,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":328.5706,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.2089,"elapsed_within_tithi_degrees":6.2089},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":328.5706,"elapsed_within_degrees":8.5706},"yoga":{"number":12,"name":"Dhruva","sum_longitude":146.9324},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.447,"elongation":150.209},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.447,"opposition_distance":29.791}},"eclipse_window_40days":[{"offset_days":-13,"type":"solar","occurs":true,"moon_latitude":-0.097,"elongation":1.303}]},"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":"05:33","sunsetLocal":"18:29","solarNoonLocal":"12:01","dayLengthHours":12.929179245405138,"dayLengthDisplay":"12 Hours 55 Mins 45 Secs","nightLengthDisplay":"11 Hours 04 Mins 15 Secs","moonriseLocal":"15:58","moonsetLocal":"04:13","rahuKala":{"name":"Rāhu Kāla","start":"07:10","end":"08:47","startHours":7.173734123605942,"endHours":8.789881529281583,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:24","end":"12:01","startHours":10.406028934957227,"endHours":12.022176340632868,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:38","end":"15:15","startHours":13.638323746308512,"endHours":15.254471151984152,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:34","end":"09:00","startHours":8.574395208524832,"endHours":9.005367850038336,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:06","end":"06:26","startHours":6.0963025198221805,"endHours":6.441080633032984,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:35","end":"12:27","startHours":11.591203699119363,"endHours":12.453148982146372,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:50","end":"04:42","startHours":3.8336961518762815,"endHours":4.6956414349032904,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:29","end":"05:33","startHours":4.480155114146538,"endHours":5.5575867179303,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:02","startHours":14.17703954820039,"endHours":15.038984831227399,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:17","end":"18:41","startHours":18.286765963335437,"endHours":18.686765963335436,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:29","end":"19:02","startHours":18.486765963335436,"endHours":19.02548176522732,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:14","end":"19:59","startHours":18.236765963335436,"endHours":19.986765963335436,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:35","end":"00:27","startHours":23.59120369911936,"endHours":24.453148982146374,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:33","end":"07:10","startHours":5.5575867179303,"endHours":7.173734123605942,"quality":"auspicious"},{"name":"Kāla","start":"07:10","end":"08:47","startHours":7.173734123605942,"endHours":8.789881529281583,"quality":"inauspicious"},{"name":"Śubha","start":"08:47","end":"10:24","startHours":8.789881529281583,"endHours":10.406028934957227,"quality":"auspicious"},{"name":"Roga","start":"10:24","end":"12:01","startHours":10.406028934957227,"endHours":12.022176340632868,"quality":"inauspicious"},{"name":"Udveg","start":"12:01","end":"13:38","startHours":12.022176340632868,"endHours":13.638323746308512,"quality":"inauspicious"},{"name":"Chala","start":"13:38","end":"15:15","startHours":13.638323746308512,"endHours":15.254471151984152,"quality":"neutral"},{"name":"Labha","start":"15:15","end":"16:52","startHours":15.254471151984152,"endHours":16.870618557659796,"quality":"auspicious"},{"name":"Amṛta","start":"16:52","end":"18:29","startHours":16.870618557659796,"endHours":18.486765963335436,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:29","end":"19:52","startHours":18.486765963335436,"endHours":19.870618557659796,"quality":"neutral"},{"name":"Labha","start":"19:52","end":"21:15","startHours":19.870618557659796,"endHours":21.254471151984152,"quality":"auspicious"},{"name":"Amṛta","start":"21:15","end":"22:38","startHours":21.254471151984152,"endHours":22.638323746308508,"quality":"auspicious"},{"name":"Kāla","start":"22:38","end":"00:01","startHours":22.638323746308508,"endHours":24.022176340632868,"quality":"inauspicious"},{"name":"Śubha","start":"00:01","end":"01:24","startHours":24.022176340632868,"endHours":25.406028934957227,"quality":"auspicious"},{"name":"Roga","start":"01:24","end":"02:47","startHours":25.406028934957227,"endHours":26.789881529281583,"quality":"inauspicious"},{"name":"Udveg","start":"02:47","end":"04:10","startHours":26.789881529281583,"endHours":28.17373412360594,"quality":"inauspicious"},{"name":"Chala","start":"04:10","end":"05:33","startHours":28.17373412360594,"endHours":29.5575867179303,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:33","end":"06:33","startHours":5.5575867179303,"endHours":6.5575867179303,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:33","end":"07:33","startHours":6.5575867179303,"endHours":7.5575867179303,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:33","end":"08:33","startHours":7.5575867179303,"endHours":8.557586717930299,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:33","end":"09:33","startHours":8.557586717930299,"endHours":9.557586717930299,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:33","end":"10:33","startHours":9.557586717930299,"endHours":10.557586717930299,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:33","end":"11:33","startHours":10.557586717930299,"endHours":11.557586717930299,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:33","end":"12:33","startHours":11.557586717930299,"endHours":12.557586717930299,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:33","end":"13:33","startHours":12.557586717930299,"endHours":13.557586717930299,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:33","end":"14:33","startHours":13.557586717930299,"endHours":14.557586717930299,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:33","end":"15:33","startHours":14.557586717930299,"endHours":15.557586717930299,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:33","end":"16:33","startHours":15.557586717930299,"endHours":16.5575867179303,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:33","end":"17:33","startHours":16.5575867179303,"endHours":17.5575867179303,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:33","end":"18:33","startHours":17.5575867179303,"endHours":18.5575867179303,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:33","end":"19:33","startHours":18.5575867179303,"endHours":19.5575867179303,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:33","end":"20:33","startHours":19.5575867179303,"endHours":20.5575867179303,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:33","end":"21:33","startHours":20.5575867179303,"endHours":21.5575867179303,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:33","end":"22:33","startHours":21.5575867179303,"endHours":22.5575867179303,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:33","end":"23:33","startHours":22.5575867179303,"endHours":23.5575867179303,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:33","end":"00:33","startHours":23.5575867179303,"endHours":24.5575867179303,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:33","end":"01:33","startHours":24.5575867179303,"endHours":25.5575867179303,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:33","end":"02:33","startHours":25.5575867179303,"endHours":26.5575867179303,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:33","end":"03:33","startHours":26.5575867179303,"endHours":27.5575867179303,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:33","end":"04:33","startHours":27.5575867179303,"endHours":28.5575867179303,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:33","end":"05:33","startHours":28.5575867179303,"endHours":29.5575867179303,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Ānanda","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-9.463633459790906,"eotMinutes":15.227419562027912,"ayanamsa":25.1074}},"calendars":{"vikram_samvat":2146,"vikram_samvatsara":"Dundubhi","saka_samvat":2011,"saka_samvatsara":"Saumya","bengali_samvat":1496,"malayalam_era":1265,"nanakshahi_year":620,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","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 Śukla Trayodaśī · Vikram 2146 Dundubhi · Śaka 2011 Saumya"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 October 17, 2089 CE · Perth, Australia · Vidhyamitra","description":"October 17, 2089 CE for Perth, Australia: Śukla Trayodaśī, sūryodaya 05:33, sūryāsta 18:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2089-10-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2089-10-17","sa":"https://sa.vidhyamitra.com/city/perth/2089-10-17","hi":"https://hi.vidhyamitra.com/city/perth/2089-10-17","x-default":"https://vidhyamitra.com/city/perth/2089-10-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T00:23:09.038Z","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":"2026-06-03T00:23:09.038Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T00:23:09.038Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}