{"id":"vidhyamitra:city-day:perth:2081-10-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2081-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2081-10-01","date_display":"October 1, 2081 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":2081,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2481403.770833,"kali_year":5183,"ahargana":1892938.2708,"sun":{"sidereal_longitude":162.6216,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":140.3825,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":337.7608,"elapsed_within_tithi_degrees":1.7608},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":140.3825,"elapsed_within_degrees":7.0491},"yoga":{"number":23,"name":"Śubha","sum_longitude":303.0041},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"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":2081,"month":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2481403.770833,"ahargana":1892938.2708,"kali_year":5183,"ayanamsa_lahiri":24.995,"grahas":{"sun":{"sidereal_longitude":163.56558599999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":139.73298599999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false,"latitude":0.2069},"mars":{"sidereal_longitude":146.084786,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":153.49598600000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":325.205786,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":142.62658599999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":295.5713860000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":323.021,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":143.021,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":2081,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2481403.770833,"kali_year":5183,"ahargana":1892938.2708,"sun":{"sidereal_longitude":162.6216,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":140.3825,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":337.7608,"elapsed_within_tithi_degrees":1.7608},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":140.3825,"elapsed_within_degrees":7.0491},"yoga":{"number":23,"name":"Śubha","sum_longitude":303.0041},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.207,"elongation":22.239},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.207,"opposition_distance":157.761}},"eclipse_window_40days":[{"offset_days":-13,"type":"lunar","occurs":true,"moon_latitude":0.46,"opposition_distance":0.326}]},"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":"05:53","sunsetLocal":"18:18","solarNoonLocal":"12:05","dayLengthHours":12.413898969463949,"dayLengthDisplay":"12 Hours 24 Mins 50 Secs","nightLengthDisplay":"11 Hours 35 Mins 10 Secs","moonriseLocal":"04:42","moonsetLocal":"16:18","rahuKala":{"name":"Rāhu Kāla","start":"12:05","end":"13:38","startHours":12.089837263556927,"endHours":13.641574634739921,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:26","end":"08:59","startHours":7.434625150007947,"endHours":8.98636252119094,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:32","end":"12:05","startHours":10.538099892373934,"endHours":12.089837263556927,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:47","end":"09:12","startHours":8.779464205033207,"endHours":9.193260837348673,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:24","end":"06:44","startHours":6.4001335692192844,"endHours":6.731170875071657,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:30","startHours":11.676040631241461,"endHours":12.503633895872392,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:14","end":"05:03","startHours":4.2277012495630935,"endHours":5.055294514194023,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:51","end":"05:53","startHours":4.848396198036291,"endHours":5.882887778824953,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:59","startHours":14.158820425134254,"endHours":14.986413689765184,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:06","end":"18:30","startHours":18.096786748288903,"endHours":18.4967867482889,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:18","end":"18:49","startHours":18.296786748288902,"endHours":18.814032538683232,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:03","end":"19:48","startHours":18.046786748288902,"endHours":19.796786748288902,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:30","startHours":23.676040631241463,"endHours":24.50363389587239,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:53","end":"07:26","startHours":5.882887778824953,"endHours":7.434625150007947,"quality":"auspicious"},{"name":"Amṛta","start":"07:26","end":"08:59","startHours":7.434625150007947,"endHours":8.98636252119094,"quality":"auspicious"},{"name":"Kāla","start":"08:59","end":"10:32","startHours":8.98636252119094,"endHours":10.538099892373934,"quality":"inauspicious"},{"name":"Śubha","start":"10:32","end":"12:05","startHours":10.538099892373934,"endHours":12.089837263556927,"quality":"auspicious"},{"name":"Roga","start":"12:05","end":"13:38","startHours":12.089837263556927,"endHours":13.641574634739921,"quality":"inauspicious"},{"name":"Udveg","start":"13:38","end":"15:12","startHours":13.641574634739921,"endHours":15.193312005922914,"quality":"inauspicious"},{"name":"Chala","start":"15:12","end":"16:45","startHours":15.193312005922914,"endHours":16.745049377105907,"quality":"neutral"},{"name":"Labha","start":"16:45","end":"18:18","startHours":16.745049377105907,"endHours":18.296786748288902,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:18","end":"19:45","startHours":18.296786748288902,"endHours":19.745049377105907,"quality":"inauspicious"},{"name":"Chala","start":"19:45","end":"21:12","startHours":19.745049377105907,"endHours":21.193312005922916,"quality":"neutral"},{"name":"Labha","start":"21:12","end":"22:38","startHours":21.193312005922916,"endHours":22.64157463473992,"quality":"auspicious"},{"name":"Amṛta","start":"22:38","end":"00:05","startHours":22.64157463473992,"endHours":24.089837263556927,"quality":"auspicious"},{"name":"Kāla","start":"00:05","end":"01:32","startHours":24.089837263556927,"endHours":25.538099892373936,"quality":"inauspicious"},{"name":"Śubha","start":"01:32","end":"02:59","startHours":25.538099892373936,"endHours":26.98636252119094,"quality":"auspicious"},{"name":"Roga","start":"02:59","end":"04:26","startHours":26.98636252119094,"endHours":28.434625150007946,"quality":"inauspicious"},{"name":"Udveg","start":"04:26","end":"05:53","startHours":28.434625150007946,"endHours":29.88288777882495,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:53","end":"06:53","startHours":5.882887778824953,"endHours":6.882887778824953,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:53","end":"07:53","startHours":6.882887778824953,"endHours":7.882887778824953,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:53","end":"08:53","startHours":7.882887778824953,"endHours":8.882887778824953,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:53","end":"09:53","startHours":8.882887778824953,"endHours":9.882887778824953,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:53","end":"10:53","startHours":9.882887778824953,"endHours":10.882887778824953,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:53","end":"11:53","startHours":10.882887778824953,"endHours":11.882887778824953,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:53","end":"12:53","startHours":11.882887778824953,"endHours":12.882887778824953,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:53","end":"13:53","startHours":12.882887778824953,"endHours":13.882887778824953,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:53","end":"14:53","startHours":13.882887778824953,"endHours":14.882887778824953,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:53","end":"15:53","startHours":14.882887778824953,"endHours":15.882887778824953,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:53","end":"16:53","startHours":15.882887778824953,"endHours":16.88288777882495,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:53","end":"17:53","startHours":16.88288777882495,"endHours":17.88288777882495,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:53","end":"18:53","startHours":17.88288777882495,"endHours":18.88288777882495,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:53","end":"19:53","startHours":18.88288777882495,"endHours":19.88288777882495,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:53","end":"20:53","startHours":19.88288777882495,"endHours":20.88288777882495,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:53","end":"21:53","startHours":20.88288777882495,"endHours":21.88288777882495,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:53","end":"22:53","startHours":21.88288777882495,"endHours":22.88288777882495,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:53","end":"23:53","startHours":22.88288777882495,"endHours":23.88288777882495,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:53","end":"00:53","startHours":23.88288777882495,"endHours":24.88288777882495,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:53","end":"01:53","startHours":24.88288777882495,"endHours":25.88288777882495,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:53","end":"02:53","startHours":25.88288777882495,"endHours":26.88288777882495,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:53","end":"03:53","startHours":26.88288777882495,"endHours":27.88288777882495,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:53","end":"04:53","startHours":27.88288777882495,"endHours":28.88288777882495,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:53","end":"05:53","startHours":28.88288777882495,"endHours":29.88288777882495,"planetary_lord":"Sun"}],"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","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"West","rahuVasa":"South-West","anandadiYoga":{"name":"Gada","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":-3.3941539833599905,"eotMinutes":11.167764186584405,"ayanamsa":24.995}},"calendars":{"vikram_samvat":2138,"vikram_samvatsara":"Ānanda","saka_samvat":2003,"saka_samvatsara":"Plava","bengali_samvat":1488,"malayalam_era":1257,"nanakshahi_year":612,"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 Caturdaśī · Vikram 2138 Ānanda · Śaka 2003 Plava"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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 1, 2081 CE · Perth, Australia · Vidhyamitra","description":"October 1, 2081 CE for Perth, Australia: Kṛṣṇa Caturdaśī, sūryodaya 05:53, sūryāsta 18:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2081-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2081-10-01","sa":"https://sa.vidhyamitra.com/city/perth/2081-10-01","hi":"https://hi.vidhyamitra.com/city/perth/2081-10-01","x-default":"https://vidhyamitra.com/city/perth/2081-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T17:45:48.073Z","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":"2026-05-31T17:45:48.073Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T17:45:48.073Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}