{"id":"vidhyamitra:city-day:perth:1817-10-29:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1817-10-29","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1817-10-29","date_display":"October 29, 1817 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":1817,"month":10,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2385006.770833,"kali_year":4919,"ahargana":1796541.2708,"sun":{"sidereal_longitude":193.7289,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":59.8992,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":226.1704,"elapsed_within_tithi_degrees":10.1704},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":59.8992,"elapsed_within_degrees":6.5659},"yoga":{"number":20,"name":"Śiva","sum_longitude":253.6281},"karana":{"half_tithi_index":37,"name":"Bālava"},"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":1817,"month":10,"day":29,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2385006.770833,"ahargana":1796541.2708,"kali_year":4919,"ayanamsa_lahiri":21.3082,"grahas":{"sun":{"sidereal_longitude":193.97686,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":56.45956000000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false,"latitude":2.2006},"mars":{"sidereal_longitude":67.33465999999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":true},"mercury":{"sidereal_longitude":178.57796000000008,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":232.79476,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":164.55795999999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":309.82295999999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":30.5979,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":210.5979,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","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":1817,"month":10,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2385006.770833,"kali_year":4919,"ahargana":1796541.2708,"sun":{"sidereal_longitude":193.7289,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":59.8992,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":226.1704,"elapsed_within_tithi_degrees":10.1704},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":59.8992,"elapsed_within_degrees":6.5659},"yoga":{"number":20,"name":"Śiva","sum_longitude":253.6281},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.201,"elongation":133.83},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.201,"opposition_distance":46.17}},"eclipse_window_40days":[{"offset_days":11,"type":"solar","occurs":true,"moon_latitude":0.467,"elongation":0.765}]},"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":"05:22","sunsetLocal":"18:38","solarNoonLocal":"12:00","dayLengthHours":13.264978208580352,"dayLengthDisplay":"13 Hours 15 Mins 54 Secs","nightLengthDisplay":"10 Hours 44 Mins 06 Secs","moonriseLocal":"21:48","moonsetLocal":"07:52","rahuKala":{"name":"Rāhu Kāla","start":"12:00","end":"13:40","startHours":12.00207675201628,"endHours":13.660199028088822,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:02","end":"08:41","startHours":7.027709923798648,"endHours":8.685832199871193,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:21","end":"12:00","startHours":10.343954475943736,"endHours":12.00207675201628,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:28","end":"08:54","startHours":8.464749229728186,"endHours":8.906915170014198,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:55","end":"06:17","startHours":5.922295073083618,"endHours":6.276027825312427,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:34","end":"12:27","startHours":11.559910811730267,"endHours":12.444242692302291,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:36","end":"04:29","startHours":3.600923886582057,"endHours":4.48525576715408,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:16","end":"05:22","startHours":4.264172797011074,"endHours":5.369587647726104,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:13","end":"15:06","startHours":14.21290645344634,"endHours":15.097238334018364,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:26","end":"18:50","startHours":18.434565856306456,"endHours":18.834565856306455,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:38","end":"19:11","startHours":18.634565856306455,"endHours":19.18727328166397,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:23","end":"20:08","startHours":18.384565856306455,"endHours":20.134565856306455,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:34","end":"00:27","startHours":23.55991081173027,"endHours":24.44424269230229,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:22","end":"07:02","startHours":5.369587647726104,"endHours":7.027709923798648,"quality":"auspicious"},{"name":"Amṛta","start":"07:02","end":"08:41","startHours":7.027709923798648,"endHours":8.685832199871193,"quality":"auspicious"},{"name":"Kāla","start":"08:41","end":"10:21","startHours":8.685832199871193,"endHours":10.343954475943736,"quality":"inauspicious"},{"name":"Śubha","start":"10:21","end":"12:00","startHours":10.343954475943736,"endHours":12.00207675201628,"quality":"auspicious"},{"name":"Roga","start":"12:00","end":"13:40","startHours":12.00207675201628,"endHours":13.660199028088822,"quality":"inauspicious"},{"name":"Udveg","start":"13:40","end":"15:19","startHours":13.660199028088822,"endHours":15.318321304161369,"quality":"inauspicious"},{"name":"Chala","start":"15:19","end":"16:59","startHours":15.318321304161369,"endHours":16.976443580233912,"quality":"neutral"},{"name":"Labha","start":"16:59","end":"18:38","startHours":16.976443580233912,"endHours":18.634565856306455,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:38","end":"19:59","startHours":18.634565856306455,"endHours":19.976443580233912,"quality":"inauspicious"},{"name":"Chala","start":"19:59","end":"21:19","startHours":19.976443580233912,"endHours":21.318321304161366,"quality":"neutral"},{"name":"Labha","start":"21:19","end":"22:40","startHours":21.318321304161366,"endHours":22.660199028088822,"quality":"auspicious"},{"name":"Amṛta","start":"22:40","end":"00:00","startHours":22.660199028088822,"endHours":24.00207675201628,"quality":"auspicious"},{"name":"Kāla","start":"00:00","end":"01:21","startHours":24.00207675201628,"endHours":25.343954475943736,"quality":"inauspicious"},{"name":"Śubha","start":"01:21","end":"02:41","startHours":25.343954475943736,"endHours":26.685832199871193,"quality":"auspicious"},{"name":"Roga","start":"02:41","end":"04:02","startHours":26.685832199871193,"endHours":28.027709923798646,"quality":"inauspicious"},{"name":"Udveg","start":"04:02","end":"05:22","startHours":28.027709923798646,"endHours":29.369587647726103,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:22","end":"06:22","startHours":5.369587647726104,"endHours":6.369587647726104,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:22","end":"07:22","startHours":6.369587647726104,"endHours":7.369587647726104,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:22","end":"08:22","startHours":7.369587647726104,"endHours":8.369587647726103,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:22","end":"09:22","startHours":8.369587647726103,"endHours":9.369587647726103,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:22","end":"10:22","startHours":9.369587647726103,"endHours":10.369587647726103,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:22","end":"11:22","startHours":10.369587647726103,"endHours":11.369587647726103,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:22","end":"12:22","startHours":11.369587647726103,"endHours":12.369587647726103,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:22","end":"13:22","startHours":12.369587647726103,"endHours":13.369587647726103,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:22","end":"14:22","startHours":13.369587647726103,"endHours":14.369587647726103,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:22","end":"15:22","startHours":14.369587647726103,"endHours":15.369587647726103,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:22","end":"16:22","startHours":15.369587647726103,"endHours":16.369587647726103,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:22","end":"17:22","startHours":16.369587647726103,"endHours":17.369587647726103,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:22","end":"18:22","startHours":17.369587647726103,"endHours":18.369587647726103,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:22","end":"19:22","startHours":18.369587647726103,"endHours":19.369587647726103,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:22","end":"20:22","startHours":19.369587647726103,"endHours":20.369587647726103,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:22","end":"21:22","startHours":20.369587647726103,"endHours":21.369587647726103,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:22","end":"22:22","startHours":21.369587647726103,"endHours":22.369587647726103,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:22","end":"23:22","startHours":22.369587647726103,"endHours":23.369587647726103,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:22","end":"00:22","startHours":23.369587647726103,"endHours":24.369587647726103,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:22","end":"01:22","startHours":24.369587647726103,"endHours":25.369587647726103,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:22","end":"02:22","startHours":25.369587647726103,"endHours":26.369587647726103,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:22","end":"03:22","startHours":26.369587647726103,"endHours":27.369587647726103,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:22","end":"04:22","startHours":27.369587647726103,"endHours":28.369587647726103,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:22","end":"05:22","startHours":28.369587647726103,"endHours":29.369587647726103,"planetary_lord":"Sun"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Mṛtyu","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-13.2822409773987,"eotMinutes":16.433394879023222,"ayanamsa":21.3082}},"calendars":{"vikram_samvat":1874,"vikram_samvatsara":"Vikṛti","saka_samvat":1739,"saka_samvatsara":"Īśvara","bengali_samvat":1224,"malayalam_era":993,"nanakshahi_year":348,"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 Caturthī · Vikram 1874 Vikṛti · Śaka 1739 Īśvara"},"festivals":[{"id":"karva-chauth","name":"Karvā Chauth","name_sanskrit":"करवा चौथ","tradition":"Pan-Hindu","associated_deity":"Pārvatī + Gaṇeśa + Chandra","significance":"North Indian wives' fast for husband's longevity. Kṛṣṇa Caturthī of Kārtika.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa","lunar_month":"Kārtika"},"precedence":2},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"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 29, 1817 CE · Perth, Australia · Vidhyamitra","description":"October 29, 1817 CE for Perth, Australia: Kṛṣṇa Caturthī, sūryodaya 05:22, sūryāsta 18:38.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1817-10-29","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1817-10-29","sa":"https://sa.vidhyamitra.com/city/perth/1817-10-29","hi":"https://hi.vidhyamitra.com/city/perth/1817-10-29","x-default":"https://vidhyamitra.com/city/perth/1817-10-29"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T22:25:50.069Z","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":"2026-06-04T22:25:50.069Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-04T22:25:50.069Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}