{"id":"vidhyamitra:city-day:perth:1850-10-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1850-10-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1850-10-31","date_display":"October 31, 1850 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":1850,"month":10,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2397061.770833,"kali_year":4952,"ahargana":1808596.2708,"sun":{"sidereal_longitude":195.1969,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":143.8465,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":308.6496,"elapsed_within_tithi_degrees":8.6496},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":143.8465,"elapsed_within_degrees":10.5132},"yoga":{"number":26,"name":"Indra","sum_longitude":339.0434},"karana":{"half_tithi_index":51,"name":"Bālava"},"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":1850,"month":10,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2397061.770833,"ahargana":1808596.2708,"kali_year":4952,"ayanamsa_lahiri":21.7692,"grahas":{"sun":{"sidereal_longitude":195.51777000000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":142.79597,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false,"latitude":2.3816},"mars":{"sidereal_longitude":206.32056999999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":181.12927000000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":170.95127000000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"venus":{"sidereal_longitude":241.53047000000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":356.05187,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":111.866,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":291.866,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1850,"month":10,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2397061.770833,"kali_year":4952,"ahargana":1808596.2708,"sun":{"sidereal_longitude":195.1969,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":143.8465,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":308.6496,"elapsed_within_tithi_degrees":8.6496},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":143.8465,"elapsed_within_degrees":10.5132},"yoga":{"number":26,"name":"Indra","sum_longitude":339.0434},"karana":{"half_tithi_index":51,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.382,"elongation":51.35},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.382,"opposition_distance":128.65}},"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":"05:20","sunsetLocal":"18:40","solarNoonLocal":"12:00","dayLengthHours":13.324335898468783,"dayLengthDisplay":"13 Hours 19 Mins 28 Secs","nightLengthDisplay":"10 Hours 40 Mins 32 Secs","moonriseLocal":"02:42","moonsetLocal":"14:17","rahuKala":{"name":"Rāhu Kāla","start":"13:40","end":"15:20","startHours":13.667295661466461,"endHours":15.33283764877506,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:20","end":"07:00","startHours":5.339585724923472,"endHours":7.00512771223207,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:40","end":"10:20","startHours":8.670669699540667,"endHours":10.336211686849266,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:27","end":"08:54","startHours":8.448597434566189,"endHours":8.892741964515148,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:54","end":"06:15","startHours":5.894766387359671,"endHours":6.250082011318839,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:33","end":"12:27","startHours":11.557609144208904,"endHours":12.445898204106822,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:34","end":"04:27","startHours":3.563007605127634,"endHours":4.451296665025553,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:14","end":"05:20","startHours":4.2292244000510735,"endHours":5.339585724923472,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:13","end":"15:07","startHours":14.22247632390266,"endHours":15.110765383800578,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:28","end":"18:52","startHours":18.463921623392256,"endHours":18.863921623392255,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:40","end":"19:13","startHours":18.663921623392255,"endHours":19.219102285828455,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:25","end":"20:10","startHours":18.413921623392255,"endHours":20.163921623392255,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:33","end":"00:27","startHours":23.5576091442089,"endHours":24.445898204106822,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:20","end":"07:00","startHours":5.339585724923472,"endHours":7.00512771223207,"quality":"auspicious"},{"name":"Roga","start":"07:00","end":"08:40","startHours":7.00512771223207,"endHours":8.670669699540667,"quality":"inauspicious"},{"name":"Udveg","start":"08:40","end":"10:20","startHours":8.670669699540667,"endHours":10.336211686849266,"quality":"inauspicious"},{"name":"Chala","start":"10:20","end":"12:00","startHours":10.336211686849266,"endHours":12.001753674157865,"quality":"neutral"},{"name":"Labha","start":"12:00","end":"13:40","startHours":12.001753674157865,"endHours":13.667295661466461,"quality":"auspicious"},{"name":"Amṛta","start":"13:40","end":"15:20","startHours":13.667295661466461,"endHours":15.33283764877506,"quality":"auspicious"},{"name":"Kāla","start":"15:20","end":"17:00","startHours":15.33283764877506,"endHours":16.998379636083655,"quality":"inauspicious"},{"name":"Śubha","start":"17:00","end":"18:40","startHours":16.998379636083655,"endHours":18.663921623392255,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:40","end":"20:00","startHours":18.663921623392255,"endHours":19.99837963608366,"quality":"auspicious"},{"name":"Kāla","start":"20:00","end":"21:20","startHours":19.99837963608366,"endHours":21.332837648775058,"quality":"inauspicious"},{"name":"Śubha","start":"21:20","end":"22:40","startHours":21.332837648775058,"endHours":22.66729566146646,"quality":"auspicious"},{"name":"Roga","start":"22:40","end":"00:00","startHours":22.66729566146646,"endHours":24.001753674157865,"quality":"inauspicious"},{"name":"Udveg","start":"00:00","end":"01:20","startHours":24.001753674157865,"endHours":25.336211686849268,"quality":"inauspicious"},{"name":"Chala","start":"01:20","end":"02:40","startHours":25.336211686849268,"endHours":26.670669699540667,"quality":"neutral"},{"name":"Labha","start":"02:40","end":"04:00","startHours":26.670669699540667,"endHours":28.00512771223207,"quality":"auspicious"},{"name":"Amṛta","start":"04:00","end":"05:20","startHours":28.00512771223207,"endHours":29.339585724923474,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:20","end":"06:20","startHours":5.339585724923472,"endHours":6.339585724923472,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:20","end":"07:20","startHours":6.339585724923472,"endHours":7.339585724923472,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:20","end":"08:20","startHours":7.339585724923472,"endHours":8.339585724923472,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:20","end":"09:20","startHours":8.339585724923472,"endHours":9.339585724923472,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:20","end":"10:20","startHours":9.339585724923472,"endHours":10.339585724923472,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:20","end":"11:20","startHours":10.339585724923472,"endHours":11.339585724923472,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:20","end":"12:20","startHours":11.339585724923472,"endHours":12.339585724923472,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:20","end":"13:20","startHours":12.339585724923472,"endHours":13.339585724923472,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:20","end":"14:20","startHours":13.339585724923472,"endHours":14.339585724923472,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:20","end":"15:20","startHours":14.339585724923472,"endHours":15.339585724923472,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:20","end":"16:20","startHours":15.339585724923472,"endHours":16.339585724923474,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:20","end":"17:20","startHours":16.339585724923474,"endHours":17.339585724923474,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:20","end":"18:20","startHours":17.339585724923474,"endHours":18.339585724923474,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:20","end":"19:20","startHours":18.339585724923474,"endHours":19.339585724923474,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:20","end":"20:20","startHours":19.339585724923474,"endHours":20.339585724923474,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:20","end":"21:20","startHours":20.339585724923474,"endHours":21.339585724923474,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:20","end":"22:20","startHours":21.339585724923474,"endHours":22.339585724923474,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:20","end":"23:20","startHours":22.339585724923474,"endHours":23.339585724923474,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:20","end":"00:20","startHours":23.339585724923474,"endHours":24.339585724923474,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:20","end":"01:20","startHours":24.339585724923474,"endHours":25.339585724923474,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:20","end":"02:20","startHours":25.339585724923474,"endHours":26.339585724923474,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:20","end":"03:20","startHours":26.339585724923474,"endHours":27.339585724923474,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:20","end":"04:20","startHours":27.339585724923474,"endHours":28.339585724923474,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:20","end":"05:20","startHours":28.339585724923474,"endHours":29.339585724923474,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-13.942575600085425,"eotMinutes":16.45277955052819,"ayanamsa":21.7692}},"calendars":{"vikram_samvat":1907,"vikram_samvatsara":"Rudhirodgāri","saka_samvat":1772,"saka_samvatsara":"Sādhāraṇa","bengali_samvat":1257,"malayalam_era":1026,"nanakshahi_year":381,"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 Ekādaśī · Vikram 1907 Rudhirodgāri · Śaka 1772 Sādhāraṇa"},"festivals":[{"id":"utpanna-ekadashi","name":"Utpannā Ekādaśī","name_sanskrit":"उत्पन्ना एकादशी","tradition":"Vaishnava","associated_deity":"Ekādaśī Devī (born of Viṣṇu)","significance":"Birth-day of Ekādaśī Devī herself; first Ekādaśī observed historically.","vrata":true,"detection":{"tithi_number":26,"tithi_paksha":"Kṛṣṇa","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}],"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 31, 1850 CE · Perth, Australia · Vidhyamitra","description":"October 31, 1850 CE for Perth, Australia: Kṛṣṇa Ekādaśī, sūryodaya 05:20, sūryāsta 18:40.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1850-10-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1850-10-31","sa":"https://sa.vidhyamitra.com/city/perth/1850-10-31","hi":"https://hi.vidhyamitra.com/city/perth/1850-10-31","x-default":"https://vidhyamitra.com/city/perth/1850-10-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T21:12:54.742Z","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":"2026-06-02T21:12:54.742Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T21:12:54.742Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}