{"id":"vidhyamitra:city-day:perth:2029-10-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2029-10-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2029-10-18","date_display":"October 18, 2029 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":2029,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462427.770833,"kali_year":5131,"ahargana":1873962.2708,"sun":{"sidereal_longitude":179.8783,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":309.961,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":130.0826,"elapsed_within_tithi_degrees":10.0826},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":309.961,"elapsed_within_degrees":3.2943},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":129.8393},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"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":2029,"month":10,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2462427.770833,"ahargana":1873962.2708,"kali_year":5131,"ayanamsa_lahiri":24.2692,"grahas":{"sun":{"sidereal_longitude":180.67940799999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":312.59250799999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false,"latitude":3.9538},"mars":{"sidereal_longitude":232.80390799999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":171.258108,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":190.81520799999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":226.959608,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":29.189208000000008,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":248.4608,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":68.4608,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":2029,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462427.770833,"kali_year":5131,"ahargana":1873962.2708,"sun":{"sidereal_longitude":179.8783,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":309.961,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":130.0826,"elapsed_within_tithi_degrees":10.0826},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":309.961,"elapsed_within_degrees":3.2943},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":129.8393},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.954,"elongation":130.083},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.954,"opposition_distance":49.917}},"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":"05:33","sunsetLocal":"18:30","solarNoonLocal":"12:01","dayLengthHours":12.945997025682914,"dayLengthDisplay":"12 Hours 56 Mins 46 Secs","nightLengthDisplay":"11 Hours 03 Mins 14 Secs","moonriseLocal":"14:23","moonsetLocal":"03:14","rahuKala":{"name":"Rāhu Kāla","start":"13:38","end":"15:15","startHours":13.637621991490057,"endHours":15.255871619700422,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:33","end":"07:10","startHours":5.546373850438237,"endHours":7.164623478648601,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:47","end":"10:24","startHours":8.782873106858965,"endHours":10.401122735069329,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:34","end":"09:00","startHours":8.56710648976425,"endHours":8.99863972395368,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:05","end":"06:26","startHours":6.085790393175025,"endHours":6.43101698052657,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:35","end":"12:27","startHours":11.587839129090263,"endHours":12.450905597469124,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:49","end":"04:41","startHours":3.8202409136805153,"endHours":4.683307382059376,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:28","end":"05:33","startHours":4.467540764964661,"endHours":5.546373850438237,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:02","startHours":14.177038534226845,"endHours":15.040105002605706,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:18","end":"18:42","startHours":18.29237087612115,"endHours":18.69237087612115,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:30","end":"19:02","startHours":18.49237087612115,"endHours":19.031787418857938,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:15","end":"20:00","startHours":18.24237087612115,"endHours":19.99237087612115,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:35","end":"00:27","startHours":23.587839129090263,"endHours":24.450905597469124,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:33","end":"07:10","startHours":5.546373850438237,"endHours":7.164623478648601,"quality":"auspicious"},{"name":"Roga","start":"07:10","end":"08:47","startHours":7.164623478648601,"endHours":8.782873106858965,"quality":"inauspicious"},{"name":"Udveg","start":"08:47","end":"10:24","startHours":8.782873106858965,"endHours":10.401122735069329,"quality":"inauspicious"},{"name":"Chala","start":"10:24","end":"12:01","startHours":10.401122735069329,"endHours":12.019372363279693,"quality":"neutral"},{"name":"Labha","start":"12:01","end":"13:38","startHours":12.019372363279693,"endHours":13.637621991490057,"quality":"auspicious"},{"name":"Amṛta","start":"13:38","end":"15:15","startHours":13.637621991490057,"endHours":15.255871619700422,"quality":"auspicious"},{"name":"Kāla","start":"15:15","end":"16:52","startHours":15.255871619700422,"endHours":16.874121247910786,"quality":"inauspicious"},{"name":"Śubha","start":"16:52","end":"18:30","startHours":16.874121247910786,"endHours":18.49237087612115,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:30","end":"19:52","startHours":18.49237087612115,"endHours":19.874121247910786,"quality":"auspicious"},{"name":"Kāla","start":"19:52","end":"21:15","startHours":19.874121247910786,"endHours":21.25587161970042,"quality":"inauspicious"},{"name":"Śubha","start":"21:15","end":"22:38","startHours":21.25587161970042,"endHours":22.637621991490057,"quality":"auspicious"},{"name":"Roga","start":"22:38","end":"00:01","startHours":22.637621991490057,"endHours":24.019372363279693,"quality":"inauspicious"},{"name":"Udveg","start":"00:01","end":"01:24","startHours":24.019372363279693,"endHours":25.40112273506933,"quality":"inauspicious"},{"name":"Chala","start":"01:24","end":"02:47","startHours":25.40112273506933,"endHours":26.782873106858965,"quality":"neutral"},{"name":"Labha","start":"02:47","end":"04:10","startHours":26.782873106858965,"endHours":28.1646234786486,"quality":"auspicious"},{"name":"Amṛta","start":"04:10","end":"05:33","startHours":28.1646234786486,"endHours":29.546373850438236,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:33","end":"06:33","startHours":5.546373850438237,"endHours":6.546373850438237,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:33","end":"07:33","startHours":6.546373850438237,"endHours":7.546373850438237,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:33","end":"08:33","startHours":7.546373850438237,"endHours":8.546373850438236,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:33","end":"09:33","startHours":8.546373850438236,"endHours":9.546373850438236,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:33","end":"10:33","startHours":9.546373850438236,"endHours":10.546373850438236,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:33","end":"11:33","startHours":10.546373850438236,"endHours":11.546373850438236,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:33","end":"12:33","startHours":11.546373850438236,"endHours":12.546373850438236,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:33","end":"13:33","startHours":12.546373850438236,"endHours":13.546373850438236,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:33","end":"14:33","startHours":13.546373850438236,"endHours":14.546373850438236,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:33","end":"15:33","startHours":14.546373850438236,"endHours":15.546373850438236,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:33","end":"16:33","startHours":15.546373850438236,"endHours":16.546373850438236,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:33","end":"17:33","startHours":16.546373850438236,"endHours":17.546373850438236,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:33","end":"18:33","startHours":17.546373850438236,"endHours":18.546373850438236,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:33","end":"19:33","startHours":18.546373850438236,"endHours":19.546373850438236,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:33","end":"20:33","startHours":19.546373850438236,"endHours":20.546373850438236,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:33","end":"21:33","startHours":20.546373850438236,"endHours":21.546373850438236,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:33","end":"22:33","startHours":21.546373850438236,"endHours":22.546373850438236,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:33","end":"23:33","startHours":22.546373850438236,"endHours":23.546373850438236,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:33","end":"00:33","startHours":23.546373850438236,"endHours":24.546373850438236,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:33","end":"01:33","startHours":24.546373850438236,"endHours":25.546373850438236,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:33","end":"02:33","startHours":25.546373850438236,"endHours":26.546373850438236,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:33","end":"03:33","startHours":26.546373850438236,"endHours":27.546373850438236,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:33","end":"04:33","startHours":27.546373850438236,"endHours":28.546373850438236,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:33","end":"05:33","startHours":28.546373850438236,"endHours":29.546373850438236,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South","rahuVasa":"North-West","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"drikRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-9.657932149082349,"eotMinutes":15.395658203218455,"ayanamsa":24.2692}},"calendars":{"vikram_samvat":2086,"vikram_samvatsara":"Dundubhi","saka_samvat":1951,"saka_samvatsara":"Saumya","bengali_samvat":1436,"malayalam_era":1205,"nanakshahi_year":560,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Śukla Pakṣa","solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Śukla Ekādaśī · Vikram 2086 Dundubhi · Śaka 1951 Saumya"},"festivals":[{"id":"devotthana-ekadashi","name":"Devotthāna Ekādaśī (Prabodhinī)","name_sanskrit":"देवोत्थान एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Bhagavān Viṣṇu awakens; Cāturmāsya ends; weddings can resume.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Kārtika"},"precedence":3},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5},{"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":"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 October 18, 2029 CE · Perth, Australia · Vidhyamitra","description":"October 18, 2029 CE for Perth, Australia: Śukla Ekādaśī, sūryodaya 05:33, sūryāsta 18:30.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2029-10-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2029-10-18","sa":"https://sa.vidhyamitra.com/city/perth/2029-10-18","hi":"https://hi.vidhyamitra.com/city/perth/2029-10-18","x-default":"https://vidhyamitra.com/city/perth/2029-10-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T22:42:37.152Z","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":"2026-05-14T22:42:37.152Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T22:42:37.152Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}