{"id":"vidhyamitra:city-day:perth:1848-10-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1848-10-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1848-10-18","date_display":"October 18, 1848 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":1848,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2396318.770833,"kali_year":4950,"ahargana":1807853.2708,"sun":{"sidereal_longitude":182.7013,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":73.7943,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":251.093,"elapsed_within_tithi_degrees":11.093},"nakshatra":{"number":6,"name":"Ārdrā","pada":3,"moon_longitude":73.7943,"elapsed_within_degrees":7.1276},"yoga":{"number":20,"name":"Śiva","sum_longitude":256.4955},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"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":1848,"month":10,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2396318.770833,"ahargana":1807853.2708,"kali_year":4950,"ayanamsa_lahiri":21.7408,"grahas":{"sun":{"sidereal_longitude":183.058858,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":77.398258,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false,"latitude":-4.3921},"mars":{"sidereal_longitude":184.74835800000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":209.71845800000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":118.708058,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":208.297958,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":329.746258,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":151.2337,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":331.2337,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1848,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2396318.770833,"kali_year":4950,"ahargana":1807853.2708,"sun":{"sidereal_longitude":182.7013,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":73.7943,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":251.093,"elapsed_within_tithi_degrees":11.093},"nakshatra":{"number":6,"name":"Ārdrā","pada":3,"moon_longitude":73.7943,"elapsed_within_degrees":7.1276},"yoga":{"number":20,"name":"Śiva","sum_longitude":256.4955},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.392,"elongation":108.907},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.392,"opposition_distance":71.093}},"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":12.941275859944575,"dayLengthDisplay":"12 Hours 56 Mins 29 Secs","nightLengthDisplay":"11 Hours 03 Mins 31 Secs","moonriseLocal":"23:57","moonsetLocal":"10:00","rahuKala":{"name":"Rāhu Kāla","start":"12:01","end":"13:38","startHours":12.019372363279693,"endHours":13.637031845772764,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:10","end":"08:47","startHours":7.1663939158004775,"endHours":8.78405339829355,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:24","end":"12:01","startHours":10.401712880786622,"endHours":12.019372363279693,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:34","end":"09:00","startHours":8.568365467294473,"endHours":8.999741329292625,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:05","end":"06:26","startHours":6.0879542608050965,"endHours":6.433054950403618,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:35","end":"12:27","startHours":11.587996501281541,"endHours":12.450748225277845,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:49","end":"04:41","startHours":3.8232309853147957,"endHours":4.685982709311101,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:28","end":"05:33","startHours":4.470294778312024,"endHours":5.548734433307406,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:02","startHours":14.176251673270457,"endHours":15.039003397266763,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:17","end":"18:41","startHours":18.29001029325198,"endHours":18.69001029325198,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:29","end":"19:02","startHours":18.49001029325198,"endHours":19.02923012074967,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:14","end":"19:59","startHours":18.24001029325198,"endHours":19.99001029325198,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:35","end":"00:27","startHours":23.58799650128154,"endHours":24.450748225277845,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:33","end":"07:10","startHours":5.548734433307406,"endHours":7.1663939158004775,"quality":"auspicious"},{"name":"Amṛta","start":"07:10","end":"08:47","startHours":7.1663939158004775,"endHours":8.78405339829355,"quality":"auspicious"},{"name":"Kāla","start":"08:47","end":"10:24","startHours":8.78405339829355,"endHours":10.401712880786622,"quality":"inauspicious"},{"name":"Śubha","start":"10:24","end":"12:01","startHours":10.401712880786622,"endHours":12.019372363279693,"quality":"auspicious"},{"name":"Roga","start":"12:01","end":"13:38","startHours":12.019372363279693,"endHours":13.637031845772764,"quality":"inauspicious"},{"name":"Udveg","start":"13:38","end":"15:15","startHours":13.637031845772764,"endHours":15.254691328265837,"quality":"inauspicious"},{"name":"Chala","start":"15:15","end":"16:52","startHours":15.254691328265837,"endHours":16.87235081075891,"quality":"neutral"},{"name":"Labha","start":"16:52","end":"18:29","startHours":16.87235081075891,"endHours":18.49001029325198,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:29","end":"19:52","startHours":18.49001029325198,"endHours":19.87235081075891,"quality":"inauspicious"},{"name":"Chala","start":"19:52","end":"21:15","startHours":19.87235081075891,"endHours":21.254691328265835,"quality":"neutral"},{"name":"Labha","start":"21:15","end":"22:38","startHours":21.254691328265835,"endHours":22.637031845772764,"quality":"auspicious"},{"name":"Amṛta","start":"22:38","end":"00:01","startHours":22.637031845772764,"endHours":24.019372363279693,"quality":"auspicious"},{"name":"Kāla","start":"00:01","end":"01:24","startHours":24.019372363279693,"endHours":25.401712880786622,"quality":"inauspicious"},{"name":"Śubha","start":"01:24","end":"02:47","startHours":25.401712880786622,"endHours":26.78405339829355,"quality":"auspicious"},{"name":"Roga","start":"02:47","end":"04:10","startHours":26.78405339829355,"endHours":28.166393915800477,"quality":"inauspicious"},{"name":"Udveg","start":"04:10","end":"05:33","startHours":28.166393915800477,"endHours":29.548734433307406,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:33","end":"06:33","startHours":5.548734433307406,"endHours":6.548734433307406,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:33","end":"07:33","startHours":6.548734433307406,"endHours":7.548734433307406,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:33","end":"08:33","startHours":7.548734433307406,"endHours":8.548734433307406,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:33","end":"09:33","startHours":8.548734433307406,"endHours":9.548734433307406,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:33","end":"10:33","startHours":9.548734433307406,"endHours":10.548734433307406,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:33","end":"11:33","startHours":10.548734433307406,"endHours":11.548734433307406,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:33","end":"12:33","startHours":11.548734433307406,"endHours":12.548734433307406,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:33","end":"13:33","startHours":12.548734433307406,"endHours":13.548734433307406,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:33","end":"14:33","startHours":13.548734433307406,"endHours":14.548734433307406,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:33","end":"15:33","startHours":14.548734433307406,"endHours":15.548734433307406,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:33","end":"16:33","startHours":15.548734433307406,"endHours":16.548734433307406,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:33","end":"17:33","startHours":16.548734433307406,"endHours":17.548734433307406,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:33","end":"18:33","startHours":17.548734433307406,"endHours":18.548734433307406,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:33","end":"19:33","startHours":18.548734433307406,"endHours":19.548734433307406,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:33","end":"20:33","startHours":19.548734433307406,"endHours":20.548734433307406,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:33","end":"21:33","startHours":20.548734433307406,"endHours":21.548734433307406,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:33","end":"22:33","startHours":21.548734433307406,"endHours":22.548734433307406,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:33","end":"23:33","startHours":22.548734433307406,"endHours":23.548734433307406,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:33","end":"00:33","startHours":23.548734433307406,"endHours":24.548734433307406,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:33","end":"01:33","startHours":24.548734433307406,"endHours":25.548734433307406,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:33","end":"02:33","startHours":25.548734433307406,"endHours":26.548734433307406,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:33","end":"03:33","startHours":26.548734433307406,"endHours":27.548734433307406,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:33","end":"04:33","startHours":27.548734433307406,"endHours":28.548734433307406,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:33","end":"05:33","startHours":28.548734433307406,"endHours":29.548734433307406,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"South-West","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-9.603417279191047,"eotMinutes":15.395658203218455,"ayanamsa":21.7408}},"calendars":{"vikram_samvat":1905,"vikram_samvatsara":"Durmati","saka_samvat":1770,"saka_samvatsara":"Kīlaka","bengali_samvat":1255,"malayalam_era":1024,"nanakshahi_year":379,"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 Ṣaṣṭhī · Vikram 1905 Durmati · Śaka 1770 Kīlaka"},"festivals":[],"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, 1848 CE · Perth, Australia · Vidhyamitra","description":"October 18, 1848 CE for Perth, Australia: Kṛṣṇa Ṣaṣṭhī, sūryodaya 05:33, sūryāsta 18:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1848-10-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1848-10-18","sa":"https://sa.vidhyamitra.com/city/perth/1848-10-18","hi":"https://hi.vidhyamitra.com/city/perth/1848-10-18","x-default":"https://vidhyamitra.com/city/perth/1848-10-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T02:39:13.191Z","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":"2026-06-03T02:39:13.191Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T02:39:13.191Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}