{"id":"vidhyamitra:city-day:perth:2161-09-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2161-09-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2161-09-01","date_display":"September 1, 2161 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":2161,"month":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2510592.770833,"kali_year":5263,"ahargana":1922127.2708,"sun":{"sidereal_longitude":131.8039,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":269.5291,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":137.7252,"elapsed_within_tithi_degrees":5.7252},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":269.5291,"elapsed_within_degrees":2.8624},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":41.3329},"karana":{"half_tithi_index":22,"name":"Bava"},"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":2161,"month":9,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2510592.770833,"ahargana":1922127.2708,"kali_year":5263,"ayanamsa_lahiri":26.1114,"grahas":{"sun":{"sidereal_longitude":132.875651,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":271.69215099999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false,"latitude":3.5964},"mars":{"sidereal_longitude":317.5739510000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":145.433451,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":219.26205099999993,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":108.82145100000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":199.51115099999993,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":216.4473,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":36.4473,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"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":2161,"month":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2510592.770833,"kali_year":5263,"ahargana":1922127.2708,"sun":{"sidereal_longitude":131.8039,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":269.5291,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":137.7252,"elapsed_within_tithi_degrees":5.7252},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":269.5291,"elapsed_within_degrees":2.8624},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":41.3329},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.596,"elongation":137.725},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.596,"opposition_distance":42.275}},"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":"06:33","sunsetLocal":"17:59","solarNoonLocal":"12:16","dayLengthHours":11.445236139473831,"dayLengthDisplay":"11 Hours 26 Mins 43 Secs","nightLengthDisplay":"12 Hours 33 Mins 17 Secs","moonriseLocal":"14:34","moonsetLocal":"04:29","rahuKala":{"name":"Rāhu Kāla","start":"15:08","end":"16:34","startHours":15.129342071350568,"endHours":16.5599965887848,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:24","end":"10:50","startHours":9.406724001613654,"endHours":10.837378519047881,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:16","end":"13:42","startHours":12.26803303648211,"endHours":13.69868755391634,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:13","end":"09:36","startHours":9.215970065955755,"endHours":9.59747793727155,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:01","end":"07:20","startHours":7.022299805889938,"endHours":7.327506102942574,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:39","startHours":11.886525165166317,"endHours":12.649540907797904,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:01","end":"05:47","startHours":5.019383481482017,"endHours":5.782399224113607,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:35","end":"06:33","startHours":5.591645288455709,"endHours":6.545414966745195,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"14:56","startHours":14.175572393061083,"endHours":14.938588135692672,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:47","end":"18:11","startHours":17.790651106219027,"endHours":18.190651106219025,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:59","end":"18:28","startHours":17.990651106219026,"endHours":18.467535945363768,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:44","end":"19:29","startHours":17.740651106219026,"endHours":19.490651106219026,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:39","startHours":23.886525165166315,"endHours":24.649540907797903,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:33","end":"07:59","startHours":6.545414966745195,"endHours":7.976069484179424,"quality":"inauspicious"},{"name":"Udveg","start":"07:59","end":"09:24","startHours":7.976069484179424,"endHours":9.406724001613654,"quality":"inauspicious"},{"name":"Chala","start":"09:24","end":"10:50","startHours":9.406724001613654,"endHours":10.837378519047881,"quality":"neutral"},{"name":"Labha","start":"10:50","end":"12:16","startHours":10.837378519047881,"endHours":12.26803303648211,"quality":"auspicious"},{"name":"Amṛta","start":"12:16","end":"13:42","startHours":12.26803303648211,"endHours":13.69868755391634,"quality":"auspicious"},{"name":"Kāla","start":"13:42","end":"15:08","startHours":13.69868755391634,"endHours":15.129342071350568,"quality":"inauspicious"},{"name":"Śubha","start":"15:08","end":"16:34","startHours":15.129342071350568,"endHours":16.5599965887848,"quality":"auspicious"},{"name":"Roga","start":"16:34","end":"17:59","startHours":16.5599965887848,"endHours":17.990651106219026,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:59","end":"19:34","startHours":17.990651106219026,"endHours":19.5599965887848,"quality":"inauspicious"},{"name":"Śubha","start":"19:34","end":"21:08","startHours":19.5599965887848,"endHours":21.129342071350568,"quality":"auspicious"},{"name":"Roga","start":"21:08","end":"22:42","startHours":21.129342071350568,"endHours":22.69868755391634,"quality":"inauspicious"},{"name":"Udveg","start":"22:42","end":"00:16","startHours":22.69868755391634,"endHours":24.26803303648211,"quality":"inauspicious"},{"name":"Chala","start":"00:16","end":"01:50","startHours":24.26803303648211,"endHours":25.83737851904788,"quality":"neutral"},{"name":"Labha","start":"01:50","end":"03:24","startHours":25.83737851904788,"endHours":27.406724001613654,"quality":"auspicious"},{"name":"Amṛta","start":"03:24","end":"04:59","startHours":27.406724001613654,"endHours":28.976069484179426,"quality":"auspicious"},{"name":"Kāla","start":"04:59","end":"06:33","startHours":28.976069484179426,"endHours":30.545414966745195,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:33","end":"07:33","startHours":6.545414966745195,"endHours":7.545414966745195,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:33","end":"08:33","startHours":7.545414966745195,"endHours":8.545414966745195,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:33","end":"09:33","startHours":8.545414966745195,"endHours":9.545414966745195,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:33","end":"10:33","startHours":9.545414966745195,"endHours":10.545414966745195,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:33","end":"11:33","startHours":10.545414966745195,"endHours":11.545414966745195,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:33","end":"12:33","startHours":11.545414966745195,"endHours":12.545414966745195,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:33","end":"13:33","startHours":12.545414966745195,"endHours":13.545414966745195,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:33","end":"14:33","startHours":13.545414966745195,"endHours":14.545414966745195,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:33","end":"15:33","startHours":14.545414966745195,"endHours":15.545414966745195,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:33","end":"16:33","startHours":15.545414966745195,"endHours":16.545414966745195,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:33","end":"17:33","startHours":16.545414966745195,"endHours":17.545414966745195,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:33","end":"18:33","startHours":17.545414966745195,"endHours":18.545414966745195,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:33","end":"19:33","startHours":18.545414966745195,"endHours":19.545414966745195,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:33","end":"20:33","startHours":19.545414966745195,"endHours":20.545414966745195,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:33","end":"21:33","startHours":20.545414966745195,"endHours":21.545414966745195,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:33","end":"22:33","startHours":21.545414966745195,"endHours":22.545414966745195,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:33","end":"23:33","startHours":22.545414966745195,"endHours":23.545414966745195,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:33","end":"00:33","startHours":23.545414966745195,"endHours":24.545414966745195,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:33","end":"01:33","startHours":24.545414966745195,"endHours":25.545414966745195,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:33","end":"02:33","startHours":25.545414966745195,"endHours":26.545414966745195,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:33","end":"03:33","startHours":26.545414966745195,"endHours":27.545414966745195,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:33","end":"04:33","startHours":27.545414966745195,"endHours":28.545414966745195,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:33","end":"05:33","startHours":28.545414966745195,"endHours":29.545414966745195,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:33","end":"06:33","startHours":29.545414966745195,"endHours":30.545414966745195,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Ānanda","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":8.199394928539041,"eotMinutes":0.47601781107335894,"ayanamsa":26.1114}},"calendars":{"vikram_samvat":2218,"vikram_samvatsara":"Bhāva","saka_samvat":2083,"saka_samvatsara":"Durmati","bengali_samvat":1568,"malayalam_era":1337,"nanakshahi_year":692,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada (Adhika) Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":true,"lunar_month_purnimanta_is_adhika":true,"lunar_month_amanta_is_adhika":true,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada (Adhika) Śukla Dvādaśī · Vikram 2218 Bhāva · Śaka 2083 Durmati"},"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 September 1, 2161 CE · Perth, Australia · Vidhyamitra","description":"September 1, 2161 CE for Perth, Australia: Śukla Dvādaśī, sūryodaya 06:33, sūryāsta 17:59.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2161-09-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2161-09-01","sa":"https://sa.vidhyamitra.com/city/perth/2161-09-01","hi":"https://hi.vidhyamitra.com/city/perth/2161-09-01","x-default":"https://vidhyamitra.com/city/perth/2161-09-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T16:07:19.418Z","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":"2026-05-31T16:07:19.418Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T16:07:19.418Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}