{"id":"vidhyamitra:city-day:perth:1837-10-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1837-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1837-10-01","date_display":"October 1, 1837 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":1837,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2392283.770833,"kali_year":4939,"ahargana":1803818.2708,"sun":{"sidereal_longitude":165.7067,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":179.9987,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":14.292,"elapsed_within_tithi_degrees":2.292},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":179.9987,"elapsed_within_degrees":6.6654},"yoga":{"number":26,"name":"Indra","sum_longitude":345.7054},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1837,"month":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2392283.770833,"ahargana":1803818.2708,"kali_year":4939,"ayanamsa_lahiri":21.5865,"grahas":{"sun":{"sidereal_longitude":166.060025,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":179.78812500000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false,"latitude":0.394},"mars":{"sidereal_longitude":204.867125,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":178.57482499999992,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":137.09772499999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":203.613925,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":205.187225,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":5.0274,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":185.0274,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","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":1837,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2392283.770833,"kali_year":4939,"ahargana":1803818.2708,"sun":{"sidereal_longitude":165.7067,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":179.9987,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":14.292,"elapsed_within_tithi_degrees":2.292},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":179.9987,"elapsed_within_degrees":6.6654},"yoga":{"number":26,"name":"Indra","sum_longitude":345.7054},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.394,"elongation":14.292},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.394,"opposition_distance":165.708}},"eclipse_window_40days":[{"offset_days":-1,"type":"solar","occurs":true,"moon_latitude":1.389,"elongation":2.359},{"offset_days":13,"type":"lunar","occurs":true,"moon_latitude":-0.253,"opposition_distance":2.544}]},"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":"05:54","sunsetLocal":"18:17","solarNoonLocal":"12:05","dayLengthHours":12.383740465948,"dayLengthDisplay":"12 Hours 23 Mins 01 Secs","nightLengthDisplay":"11 Hours 36 Mins 59 Secs","moonriseLocal":"06:37","moonsetLocal":"19:24","rahuKala":{"name":"Rāhu Kāla","start":"16:44","end":"18:17","startHours":16.733739938287428,"endHours":18.281707496530927,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:05","end":"13:38","startHours":12.089837263556927,"endHours":13.637804821800428,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:11","end":"16:44","startHours":15.185772380043927,"endHours":16.733739938287428,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:47","end":"09:12","startHours":8.78750647263746,"endHours":9.200297821502394,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:25","end":"06:45","startHours":6.413956216664094,"endHours":6.744189295756041,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:30","startHours":11.677045914691993,"endHours":12.50262861242186,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:15","end":"05:04","startHours":4.2468016351231945,"endHours":5.072384332853061,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:52","end":"05:54","startHours":4.865988658420594,"endHours":5.897967030582928,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:59","startHours":14.153794007881595,"endHours":14.979376705611463,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:05","end":"18:29","startHours":18.081707496530928,"endHours":18.481707496530927,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:17","end":"18:48","startHours":18.281707496530927,"endHours":18.797696682612095,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:02","end":"19:47","startHours":18.031707496530927,"endHours":19.781707496530927,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:30","startHours":23.677045914691995,"endHours":24.50262861242186,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:54","end":"07:27","startHours":5.897967030582928,"endHours":7.445934588826428,"quality":"inauspicious"},{"name":"Chala","start":"07:27","end":"09:00","startHours":7.445934588826428,"endHours":8.993902147069928,"quality":"neutral"},{"name":"Labha","start":"09:00","end":"10:33","startHours":8.993902147069928,"endHours":10.541869705313427,"quality":"auspicious"},{"name":"Amṛta","start":"10:33","end":"12:05","startHours":10.541869705313427,"endHours":12.089837263556927,"quality":"auspicious"},{"name":"Kāla","start":"12:05","end":"13:38","startHours":12.089837263556927,"endHours":13.637804821800428,"quality":"inauspicious"},{"name":"Śubha","start":"13:38","end":"15:11","startHours":13.637804821800428,"endHours":15.185772380043927,"quality":"auspicious"},{"name":"Roga","start":"15:11","end":"16:44","startHours":15.185772380043927,"endHours":16.733739938287428,"quality":"inauspicious"},{"name":"Udveg","start":"16:44","end":"18:17","startHours":16.733739938287428,"endHours":18.281707496530927,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:17","end":"19:44","startHours":18.281707496530927,"endHours":19.733739938287428,"quality":"auspicious"},{"name":"Roga","start":"19:44","end":"21:11","startHours":19.733739938287428,"endHours":21.18577238004393,"quality":"inauspicious"},{"name":"Udveg","start":"21:11","end":"22:38","startHours":21.18577238004393,"endHours":22.63780482180043,"quality":"inauspicious"},{"name":"Chala","start":"22:38","end":"00:05","startHours":22.63780482180043,"endHours":24.089837263556927,"quality":"neutral"},{"name":"Labha","start":"00:05","end":"01:33","startHours":24.089837263556927,"endHours":25.541869705313427,"quality":"auspicious"},{"name":"Amṛta","start":"01:33","end":"03:00","startHours":25.541869705313427,"endHours":26.993902147069928,"quality":"auspicious"},{"name":"Kāla","start":"03:00","end":"04:27","startHours":26.993902147069928,"endHours":28.445934588826425,"quality":"inauspicious"},{"name":"Śubha","start":"04:27","end":"05:54","startHours":28.445934588826425,"endHours":29.897967030582926,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:54","end":"06:54","startHours":5.897967030582928,"endHours":6.897967030582928,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:54","end":"07:54","startHours":6.897967030582928,"endHours":7.897967030582928,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:54","end":"08:54","startHours":7.897967030582928,"endHours":8.897967030582928,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:54","end":"09:54","startHours":8.897967030582928,"endHours":9.897967030582928,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:54","end":"10:54","startHours":9.897967030582928,"endHours":10.897967030582928,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:54","end":"11:54","startHours":10.897967030582928,"endHours":11.897967030582928,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:54","end":"12:54","startHours":11.897967030582928,"endHours":12.897967030582928,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:54","end":"13:54","startHours":12.897967030582928,"endHours":13.897967030582928,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:54","end":"14:54","startHours":13.897967030582928,"endHours":14.897967030582928,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:54","end":"15:54","startHours":14.897967030582928,"endHours":15.897967030582928,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:54","end":"16:54","startHours":15.897967030582928,"endHours":16.897967030582926,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:54","end":"17:54","startHours":16.897967030582926,"endHours":17.897967030582926,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:54","end":"18:54","startHours":17.897967030582926,"endHours":18.897967030582926,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:54","end":"19:54","startHours":18.897967030582926,"endHours":19.897967030582926,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:54","end":"20:54","startHours":19.897967030582926,"endHours":20.897967030582926,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:54","end":"21:54","startHours":20.897967030582926,"endHours":21.897967030582926,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:54","end":"22:54","startHours":21.897967030582926,"endHours":22.897967030582926,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:54","end":"23:54","startHours":22.897967030582926,"endHours":23.897967030582926,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:54","end":"00:54","startHours":23.897967030582926,"endHours":24.897967030582926,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:54","end":"01:54","startHours":24.897967030582926,"endHours":25.897967030582926,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:54","end":"02:54","startHours":25.897967030582926,"endHours":26.897967030582926,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:54","end":"03:54","startHours":26.897967030582926,"endHours":27.897967030582926,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:54","end":"04:54","startHours":27.897967030582926,"endHours":28.897967030582926,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:54","end":"05:54","startHours":28.897967030582926,"endHours":29.897967030582926,"planetary_lord":"Jupiter"}],"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":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-3.0336685931926626,"eotMinutes":11.167764186584405,"ayanamsa":21.5865}},"calendars":{"vikram_samvat":1894,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1759,"saka_samvatsara":"Hemalambī","bengali_samvat":1244,"malayalam_era":1013,"nanakshahi_year":368,"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 Dvitīyā · Vikram 1894 Sādhāraṇa · Śaka 1759 Hemalambī"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 1, 1837 CE · Perth, Australia · Vidhyamitra","description":"October 1, 1837 CE for Perth, Australia: Śukla Dvitīyā, sūryodaya 05:54, sūryāsta 18:17.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1837-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1837-10-01","sa":"https://sa.vidhyamitra.com/city/perth/1837-10-01","hi":"https://hi.vidhyamitra.com/city/perth/1837-10-01","x-default":"https://vidhyamitra.com/city/perth/1837-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T19:07:51.315Z","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":"2026-06-03T19:07:51.315Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T19:07:51.315Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}