{"id":"vidhyamitra:city-day:perth:1850-10-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1850-10-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1850-10-12","date_display":"October 12, 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":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2397042.770833,"kali_year":4952,"ahargana":1808577.2708,"sun":{"sidereal_longitude":176.2198,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":254.402,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":78.1822,"elapsed_within_tithi_degrees":6.1822},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":254.402,"elapsed_within_degrees":1.0687},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":70.6218},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2397042.770833,"ahargana":1808577.2708,"kali_year":4952,"ayanamsa_lahiri":21.7685,"grahas":{"sun":{"sidereal_longitude":176.59589600000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":254.97249599999998,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false,"latitude":2.7978},"mars":{"sidereal_longitude":193.169396,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":171.74359600000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":166.95599600000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"venus":{"sidereal_longitude":225.31099599999993,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":357.514696,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":112.8727,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":292.8727,"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":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2397042.770833,"kali_year":4952,"ahargana":1808577.2708,"sun":{"sidereal_longitude":176.2198,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":254.402,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":78.1822,"elapsed_within_tithi_degrees":6.1822},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":254.402,"elapsed_within_degrees":1.0687},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":70.6218},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.798,"elongation":78.182},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.798,"opposition_distance":101.818}},"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":"05:40","sunsetLocal":"18:24","solarNoonLocal":"12:02","dayLengthHours":12.734841705791498,"dayLengthDisplay":"12 Hours 44 Mins 05 Secs","nightLengthDisplay":"11 Hours 15 Mins 55 Secs","moonriseLocal":"10:11","moonsetLocal":"00:21","rahuKala":{"name":"Rāhu Kāla","start":"08:51","end":"10:27","startHours":8.855265125399127,"endHours":10.447120338623066,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:38","end":"15:13","startHours":13.63083076507094,"endHours":15.222685978294876,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:40","end":"07:16","startHours":5.671554698951253,"endHours":7.26340991217519,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:39","end":"09:04","startHours":8.643017763635935,"endHours":9.067512487162318,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:12","end":"06:33","startHours":6.2021731033592316,"endHours":6.541768882180338,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:37","end":"12:28","startHours":11.614480828320618,"endHours":12.463470275373384,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:58","end":"04:49","startHours":3.97357580484572,"endHours":4.822565251898486,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:37","end":"05:40","startHours":4.610317890135295,"endHours":5.671554698951253,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"15:01","startHours":14.161449169478917,"endHours":15.010438616531683,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:12","end":"18:36","startHours":18.20639640474275,"endHours":18.60639640474275,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:24","end":"18:56","startHours":18.40639640474275,"endHours":18.937014809150728,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:09","end":"19:54","startHours":18.15639640474275,"endHours":19.90639640474275,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:37","end":"00:28","startHours":23.61448082832062,"endHours":24.463470275373385,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:40","end":"07:16","startHours":5.671554698951253,"endHours":7.26340991217519,"quality":"inauspicious"},{"name":"Śubha","start":"07:16","end":"08:51","startHours":7.26340991217519,"endHours":8.855265125399127,"quality":"auspicious"},{"name":"Roga","start":"08:51","end":"10:27","startHours":8.855265125399127,"endHours":10.447120338623066,"quality":"inauspicious"},{"name":"Udveg","start":"10:27","end":"12:02","startHours":10.447120338623066,"endHours":12.038975551847003,"quality":"inauspicious"},{"name":"Chala","start":"12:02","end":"13:38","startHours":12.038975551847003,"endHours":13.63083076507094,"quality":"neutral"},{"name":"Labha","start":"13:38","end":"15:13","startHours":13.63083076507094,"endHours":15.222685978294876,"quality":"auspicious"},{"name":"Amṛta","start":"15:13","end":"16:49","startHours":15.222685978294876,"endHours":16.814541191518813,"quality":"auspicious"},{"name":"Kāla","start":"16:49","end":"18:24","startHours":16.814541191518813,"endHours":18.40639640474275,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:24","end":"19:49","startHours":18.40639640474275,"endHours":19.814541191518813,"quality":"auspicious"},{"name":"Amṛta","start":"19:49","end":"21:13","startHours":19.814541191518813,"endHours":21.222685978294876,"quality":"auspicious"},{"name":"Kāla","start":"21:13","end":"22:38","startHours":21.222685978294876,"endHours":22.63083076507094,"quality":"inauspicious"},{"name":"Śubha","start":"22:38","end":"00:02","startHours":22.63083076507094,"endHours":24.038975551847003,"quality":"auspicious"},{"name":"Roga","start":"00:02","end":"01:27","startHours":24.038975551847003,"endHours":25.447120338623066,"quality":"inauspicious"},{"name":"Udveg","start":"01:27","end":"02:51","startHours":25.447120338623066,"endHours":26.85526512539913,"quality":"inauspicious"},{"name":"Chala","start":"02:51","end":"04:16","startHours":26.85526512539913,"endHours":28.26340991217519,"quality":"neutral"},{"name":"Labha","start":"04:16","end":"05:40","startHours":28.26340991217519,"endHours":29.671554698951255,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:40","end":"06:40","startHours":5.671554698951253,"endHours":6.671554698951253,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:40","end":"07:40","startHours":6.671554698951253,"endHours":7.671554698951253,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:40","end":"08:40","startHours":7.671554698951253,"endHours":8.671554698951253,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:40","end":"09:40","startHours":8.671554698951253,"endHours":9.671554698951253,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:40","end":"10:40","startHours":9.671554698951253,"endHours":10.671554698951253,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:40","end":"11:40","startHours":10.671554698951253,"endHours":11.671554698951253,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:40","end":"12:40","startHours":11.671554698951253,"endHours":12.671554698951253,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:40","end":"13:40","startHours":12.671554698951253,"endHours":13.671554698951253,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:40","end":"14:40","startHours":13.671554698951253,"endHours":14.671554698951253,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:40","end":"15:40","startHours":14.671554698951253,"endHours":15.671554698951253,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:40","end":"16:40","startHours":15.671554698951253,"endHours":16.671554698951255,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:40","end":"17:40","startHours":16.671554698951255,"endHours":17.671554698951255,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:40","end":"18:40","startHours":17.671554698951255,"endHours":18.671554698951255,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:40","end":"19:40","startHours":18.671554698951255,"endHours":19.671554698951255,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:40","end":"20:40","startHours":19.671554698951255,"endHours":20.671554698951255,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:40","end":"21:40","startHours":20.671554698951255,"endHours":21.671554698951255,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:40","end":"22:40","startHours":21.671554698951255,"endHours":22.671554698951255,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:40","end":"23:40","startHours":22.671554698951255,"endHours":23.671554698951255,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:40","end":"00:40","startHours":23.671554698951255,"endHours":24.671554698951255,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:40","end":"01:40","startHours":24.671554698951255,"endHours":25.671554698951255,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:40","end":"02:40","startHours":25.671554698951255,"endHours":26.671554698951255,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:40","end":"03:40","startHours":26.671554698951255,"endHours":27.671554698951255,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:40","end":"04:40","startHours":27.671554698951255,"endHours":28.671554698951255,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:40","end":"05:40","startHours":28.671554698951255,"endHours":29.671554698951255,"planetary_lord":"Mercury"}],"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","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","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":-7.198619303455551,"eotMinutes":14.219466889179907,"ayanamsa":21.7685}},"calendars":{"vikram_samvat":1907,"vikram_samvatsara":"Rudhirodgāri","saka_samvat":1772,"saka_samvatsara":"Sādhāraṇa","bengali_samvat":1257,"malayalam_era":1026,"nanakshahi_year":381,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","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 Śukla Saptamī · Vikram 1907 Rudhirodgāri · Śaka 1772 Sādhāraṇa"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 12, 1850 CE · Perth, Australia · Vidhyamitra","description":"October 12, 1850 CE for Perth, Australia: Śukla Saptamī, sūryodaya 05:40, sūryāsta 18:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1850-10-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1850-10-12","sa":"https://sa.vidhyamitra.com/city/perth/1850-10-12","hi":"https://hi.vidhyamitra.com/city/perth/1850-10-12","x-default":"https://vidhyamitra.com/city/perth/1850-10-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T16:38:47.074Z","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":"2026-06-02T16:38:47.074Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T16:38:47.074Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}