{"id":"vidhyamitra:city-day:perth:1931-10-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1931-10-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1931-10-06","date_display":"October 6, 1931 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":1931,"month":10,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2426620.770833,"kali_year":5033,"ahargana":1838155.2708,"sun":{"sidereal_longitude":168.3451,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":96.719,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":288.3738,"elapsed_within_tithi_degrees":0.3738},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":96.719,"elapsed_within_degrees":3.3856},"yoga":{"number":20,"name":"Śiva","sum_longitude":265.0641},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1931,"month":10,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2426620.770833,"ahargana":1838155.2708,"kali_year":5033,"ayanamsa_lahiri":22.8997,"grahas":{"sun":{"sidereal_longitude":168.92409899999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"moon":{"sidereal_longitude":93.73579899999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false,"latitude":4.1997},"mars":{"sidereal_longitude":200.76699899999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":160.299799,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":114.29129899999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":177.323399,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":264.34209899999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":345.6879,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":165.6879,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":1931,"month":10,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2426620.770833,"kali_year":5033,"ahargana":1838155.2708,"sun":{"sidereal_longitude":168.3451,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":96.719,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":288.3738,"elapsed_within_tithi_degrees":0.3738},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":96.719,"elapsed_within_degrees":3.3856},"yoga":{"number":20,"name":"Śiva","sum_longitude":265.0641},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.2,"elongation":71.626},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.2,"opposition_distance":108.374}},"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":"05:48","sunsetLocal":"18:20","solarNoonLocal":"12:04","dayLengthHours":12.521317386243084,"dayLengthDisplay":"12 Hours 31 Mins 17 Secs","nightLengthDisplay":"11 Hours 28 Mins 43 Secs","moonriseLocal":"01:55","moonsetLocal":"12:11","rahuKala":{"name":"Rāhu Kāla","start":"15:12","end":"16:46","startHours":15.194968926596314,"endHours":16.7601335998767,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:56","end":"10:30","startHours":8.934310233474772,"endHours":10.499474906755157,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:04","end":"13:38","startHours":12.064639580035543,"endHours":13.629804253315928,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:44","end":"09:09","startHours":8.725621610370721,"endHours":9.142998856578824,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:20","end":"06:40","startHours":6.32570244467413,"endHours":6.659604241640612,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:39","end":"12:29","startHours":11.64726233382744,"endHours":12.482016826243646,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:08","end":"04:58","startHours":4.134471902081591,"endHours":4.969226394497796,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:46","end":"05:48","startHours":4.760537771393745,"endHours":5.803980886914002,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:59","startHours":14.15152581107606,"endHours":14.986280303492265,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:08","end":"18:32","startHours":18.125298273157085,"endHours":18.525298273157084,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:20","end":"18:51","startHours":18.325298273157085,"endHours":18.847019830917212,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:05","end":"19:50","startHours":18.075298273157085,"endHours":19.825298273157085,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:39","end":"00:29","startHours":23.64726233382744,"endHours":24.482016826243644,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:48","end":"07:22","startHours":5.803980886914002,"endHours":7.369145560194387,"quality":"inauspicious"},{"name":"Udveg","start":"07:22","end":"08:56","startHours":7.369145560194387,"endHours":8.934310233474772,"quality":"inauspicious"},{"name":"Chala","start":"08:56","end":"10:30","startHours":8.934310233474772,"endHours":10.499474906755157,"quality":"neutral"},{"name":"Labha","start":"10:30","end":"12:04","startHours":10.499474906755157,"endHours":12.064639580035543,"quality":"auspicious"},{"name":"Amṛta","start":"12:04","end":"13:38","startHours":12.064639580035543,"endHours":13.629804253315928,"quality":"auspicious"},{"name":"Kāla","start":"13:38","end":"15:12","startHours":13.629804253315928,"endHours":15.194968926596314,"quality":"inauspicious"},{"name":"Śubha","start":"15:12","end":"16:46","startHours":15.194968926596314,"endHours":16.7601335998767,"quality":"auspicious"},{"name":"Roga","start":"16:46","end":"18:20","startHours":16.7601335998767,"endHours":18.325298273157085,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:20","end":"19:46","startHours":18.325298273157085,"endHours":19.7601335998767,"quality":"inauspicious"},{"name":"Śubha","start":"19:46","end":"21:12","startHours":19.7601335998767,"endHours":21.194968926596314,"quality":"auspicious"},{"name":"Roga","start":"21:12","end":"22:38","startHours":21.194968926596314,"endHours":22.62980425331593,"quality":"inauspicious"},{"name":"Udveg","start":"22:38","end":"00:04","startHours":22.62980425331593,"endHours":24.064639580035543,"quality":"inauspicious"},{"name":"Chala","start":"00:04","end":"01:30","startHours":24.064639580035543,"endHours":25.499474906755157,"quality":"neutral"},{"name":"Labha","start":"01:30","end":"02:56","startHours":25.499474906755157,"endHours":26.934310233474772,"quality":"auspicious"},{"name":"Amṛta","start":"02:56","end":"04:22","startHours":26.934310233474772,"endHours":28.369145560194386,"quality":"auspicious"},{"name":"Kāla","start":"04:22","end":"05:48","startHours":28.369145560194386,"endHours":29.803980886914,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:48","end":"06:48","startHours":5.803980886914002,"endHours":6.803980886914002,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:48","end":"07:48","startHours":6.803980886914002,"endHours":7.803980886914002,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:48","end":"08:48","startHours":7.803980886914002,"endHours":8.803980886914001,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:48","end":"09:48","startHours":8.803980886914001,"endHours":9.803980886914001,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:48","end":"10:48","startHours":9.803980886914001,"endHours":10.803980886914001,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:48","end":"11:48","startHours":10.803980886914001,"endHours":11.803980886914001,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:48","end":"12:48","startHours":11.803980886914001,"endHours":12.803980886914001,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:48","end":"13:48","startHours":12.803980886914001,"endHours":13.803980886914001,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:48","end":"14:48","startHours":13.803980886914001,"endHours":14.803980886914001,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:48","end":"15:48","startHours":14.803980886914001,"endHours":15.803980886914001,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:48","end":"16:48","startHours":15.803980886914001,"endHours":16.803980886914,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:48","end":"17:48","startHours":16.803980886914,"endHours":17.803980886914,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:48","end":"18:48","startHours":17.803980886914,"endHours":18.803980886914,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:48","end":"19:48","startHours":18.803980886914,"endHours":19.803980886914,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:48","end":"20:48","startHours":19.803980886914,"endHours":20.803980886914,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:48","end":"21:48","startHours":20.803980886914,"endHours":21.803980886914,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:48","end":"22:48","startHours":21.803980886914,"endHours":22.803980886914,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:48","end":"23:48","startHours":22.803980886914,"endHours":23.803980886914,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:48","end":"00:48","startHours":23.803980886914,"endHours":24.803980886914,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:48","end":"01:48","startHours":24.803980886914,"endHours":25.803980886914,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:48","end":"02:48","startHours":25.803980886914,"endHours":26.803980886914,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:48","end":"03:48","startHours":26.803980886914,"endHours":27.803980886914,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:48","end":"04:48","startHours":27.803980886914,"endHours":28.803980886914,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:48","end":"05:48","startHours":28.803980886914,"endHours":29.803980886914,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-4.674585546087529,"eotMinutes":12.679625197867345,"ayanamsa":22.8997}},"calendars":{"vikram_samvat":1988,"vikram_samvatsara":"Tāraṇa","saka_samvat":1853,"saka_samvatsara":"Prajāpati","bengali_samvat":1338,"malayalam_era":1107,"nanakshahi_year":462,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Bhādrapada","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 Kṛṣṇa Daśamī · Vikram 1988 Tāraṇa · Śaka 1853 Prajāpati"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 6, 1931 CE · Perth, Australia · Vidhyamitra","description":"October 6, 1931 CE for Perth, Australia: Kṛṣṇa Daśamī, sūryodaya 05:48, sūryāsta 18:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1931-10-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1931-10-06","sa":"https://sa.vidhyamitra.com/city/perth/1931-10-06","hi":"https://hi.vidhyamitra.com/city/perth/1931-10-06","x-default":"https://vidhyamitra.com/city/perth/1931-10-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T07:31:37.011Z","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":"2026-06-03T07:31:37.011Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T07:31:37.011Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}