{"id":"vidhyamitra:city-day:perth:1933-10-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1933-10-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1933-10-18","date_display":"October 18, 1933 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":1933,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2427363.770833,"kali_year":5035,"ahargana":1838898.2708,"sun":{"sidereal_longitude":180.7148,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":164.4302,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":343.7154,"elapsed_within_tithi_degrees":7.7154},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":164.4302,"elapsed_within_degrees":4.4302},"yoga":{"number":26,"name":"Indra","sum_longitude":345.1451},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1933,"month":10,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2427363.770833,"ahargana":1838898.2708,"kali_year":5035,"ayanamsa_lahiri":22.9282,"grahas":{"sun":{"sidereal_longitude":181.282011,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":165.72831100000008,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false,"latitude":-2.7755},"mars":{"sidereal_longitude":224.14291100000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":204.098611,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":165.79731100000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"venus":{"sidereal_longitude":225.938311,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":287.293011,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":306.3202,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":126.3202,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":1933,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2427363.770833,"kali_year":5035,"ahargana":1838898.2708,"sun":{"sidereal_longitude":180.7148,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":164.4302,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":343.7154,"elapsed_within_tithi_degrees":7.7154},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":164.4302,"elapsed_within_degrees":4.4302},"yoga":{"number":26,"name":"Indra","sum_longitude":345.1451},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.776,"elongation":16.285},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.776,"opposition_distance":163.715}},"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":"18:29","solarNoonLocal":"12:01","dayLengthHours":12.922564276388952,"dayLengthDisplay":"12 Hours 55 Mins 21 Secs","nightLengthDisplay":"11 Hours 04 Mins 39 Secs","moonriseLocal":"04:48","moonsetLocal":"17:10","rahuKala":{"name":"Rāhu Kāla","start":"12:01","end":"13:38","startHours":12.019372363279693,"endHours":13.634692897828312,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:10","end":"08:47","startHours":7.173410759633837,"endHours":8.788731294182456,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:24","end":"12:01","startHours":10.404051828731074,"endHours":12.019372363279693,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:34","end":"09:00","startHours":8.573355222909306,"endHours":9.004107365455605,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:06","end":"06:26","startHours":6.096530403268091,"endHours":6.441132117305131,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:35","end":"12:27","startHours":11.588620220733395,"endHours":12.450124505825992,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:50","end":"04:42","startHours":3.8350816549000246,"endHours":4.696585939992621,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:29","end":"05:33","startHours":4.481209868719472,"endHours":5.558090225085218,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"15:02","startHours":14.173133076011187,"endHours":15.034637361103783,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:17","end":"18:41","startHours":18.28065450147417,"endHours":18.68065450147417,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:29","end":"19:01","startHours":18.48065450147417,"endHours":19.019094679657044,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:14","end":"19:59","startHours":18.23065450147417,"endHours":19.98065450147417,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:35","end":"00:27","startHours":23.588620220733393,"endHours":24.450124505825993,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:33","end":"07:10","startHours":5.558090225085218,"endHours":7.173410759633837,"quality":"auspicious"},{"name":"Amṛta","start":"07:10","end":"08:47","startHours":7.173410759633837,"endHours":8.788731294182456,"quality":"auspicious"},{"name":"Kāla","start":"08:47","end":"10:24","startHours":8.788731294182456,"endHours":10.404051828731074,"quality":"inauspicious"},{"name":"Śubha","start":"10:24","end":"12:01","startHours":10.404051828731074,"endHours":12.019372363279693,"quality":"auspicious"},{"name":"Roga","start":"12:01","end":"13:38","startHours":12.019372363279693,"endHours":13.634692897828312,"quality":"inauspicious"},{"name":"Udveg","start":"13:38","end":"15:15","startHours":13.634692897828312,"endHours":15.250013432376932,"quality":"inauspicious"},{"name":"Chala","start":"15:15","end":"16:52","startHours":15.250013432376932,"endHours":16.86533396692555,"quality":"neutral"},{"name":"Labha","start":"16:52","end":"18:29","startHours":16.86533396692555,"endHours":18.48065450147417,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:29","end":"19:52","startHours":18.48065450147417,"endHours":19.86533396692555,"quality":"inauspicious"},{"name":"Chala","start":"19:52","end":"21:15","startHours":19.86533396692555,"endHours":21.25001343237693,"quality":"neutral"},{"name":"Labha","start":"21:15","end":"22:38","startHours":21.25001343237693,"endHours":22.634692897828312,"quality":"auspicious"},{"name":"Amṛta","start":"22:38","end":"00:01","startHours":22.634692897828312,"endHours":24.019372363279693,"quality":"auspicious"},{"name":"Kāla","start":"00:01","end":"01:24","startHours":24.019372363279693,"endHours":25.404051828731074,"quality":"inauspicious"},{"name":"Śubha","start":"01:24","end":"02:47","startHours":25.404051828731074,"endHours":26.788731294182455,"quality":"auspicious"},{"name":"Roga","start":"02:47","end":"04:10","startHours":26.788731294182455,"endHours":28.17341075963384,"quality":"inauspicious"},{"name":"Udveg","start":"04:10","end":"05:33","startHours":28.17341075963384,"endHours":29.558090225085216,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:33","end":"06:33","startHours":5.558090225085218,"endHours":6.558090225085218,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:33","end":"07:33","startHours":6.558090225085218,"endHours":7.558090225085218,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:33","end":"08:33","startHours":7.558090225085218,"endHours":8.558090225085218,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:33","end":"09:33","startHours":8.558090225085218,"endHours":9.558090225085218,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:33","end":"10:33","startHours":9.558090225085218,"endHours":10.558090225085218,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:33","end":"11:33","startHours":10.558090225085218,"endHours":11.558090225085218,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:33","end":"12:33","startHours":11.558090225085218,"endHours":12.558090225085218,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:33","end":"13:33","startHours":12.558090225085218,"endHours":13.558090225085218,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:33","end":"14:33","startHours":13.558090225085218,"endHours":14.558090225085218,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:33","end":"15:33","startHours":14.558090225085218,"endHours":15.558090225085218,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:33","end":"16:33","startHours":15.558090225085218,"endHours":16.558090225085216,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:33","end":"17:33","startHours":16.558090225085216,"endHours":17.558090225085216,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:33","end":"18:33","startHours":17.558090225085216,"endHours":18.558090225085216,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:33","end":"19:33","startHours":18.558090225085216,"endHours":19.558090225085216,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:33","end":"20:33","startHours":19.558090225085216,"endHours":20.558090225085216,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:33","end":"21:33","startHours":20.558090225085216,"endHours":21.558090225085216,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:33","end":"22:33","startHours":21.558090225085216,"endHours":22.558090225085216,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:33","end":"23:33","startHours":22.558090225085216,"endHours":23.558090225085216,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:33","end":"00:33","startHours":23.558090225085216,"endHours":24.558090225085216,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:33","end":"01:33","startHours":24.558090225085216,"endHours":25.558090225085216,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:33","end":"02:33","startHours":25.558090225085216,"endHours":26.558090225085216,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:33","end":"03:33","startHours":26.558090225085216,"endHours":27.558090225085216,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:33","end":"04:33","startHours":27.558090225085216,"endHours":28.558090225085216,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:33","end":"05:33","startHours":28.558090225085216,"endHours":29.558090225085216,"planetary_lord":"Sun"}],"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","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"South-West","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-9.387129831166533,"eotMinutes":15.395658203218455,"ayanamsa":22.9282}},"calendars":{"vikram_samvat":1990,"vikram_samvatsara":"Vyaya","saka_samvat":1855,"saka_samvatsara":"Śrīmukha","bengali_samvat":1340,"malayalam_era":1109,"nanakshahi_year":464,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Caturdaśī · Vikram 1990 Vyaya · Śaka 1855 Śrīmukha"},"festivals":[{"id":"naraka-chaturdashi","name":"Naraka Caturdaśī (Choṭī Diwālī)","name_sanskrit":"नरक चतुर्दशी","tradition":"Vaishnava","associated_deity":"Krishna (Narakāsura-vadha)","significance":"Krishna slew Narakāsura, freeing 16,000 captive princesses. Day 2 of Diwali.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa","lunar_month":"Kārtika"},"precedence":2,"sources":["Bhāgavata 10.59"]},{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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, 1933 CE · Perth, Australia · Vidhyamitra","description":"October 18, 1933 CE for Perth, Australia: Kṛṣṇa Caturdaśī, sūryodaya 05:33, sūryāsta 18:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1933-10-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1933-10-18","sa":"https://sa.vidhyamitra.com/city/perth/1933-10-18","hi":"https://hi.vidhyamitra.com/city/perth/1933-10-18","x-default":"https://vidhyamitra.com/city/perth/1933-10-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T11:47:46.737Z","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":"2026-06-01T11:47:46.737Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T11:47:46.737Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}