{"id":"vidhyamitra:city-day:perth:2147-09-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2147-09-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2147-09-11","date_display":"September 11, 2147 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":2147,"month":9,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505488.770833,"kali_year":5249,"ahargana":1917023.2708,"sun":{"sidereal_longitude":141.0928,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":335.704,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.6112,"elapsed_within_tithi_degrees":2.6112},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1,"moon_longitude":335.704,"elapsed_within_degrees":2.3707},"yoga":{"number":9,"name":"Śūla","sum_longitude":116.7969},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2147,"month":9,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2505488.770833,"ahargana":1917023.2708,"kali_year":5249,"ayanamsa_lahiri":25.9161,"grahas":{"sun":{"sidereal_longitude":142.162062,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":337.174962,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false,"latitude":-2.1677},"mars":{"sidereal_longitude":148.294962,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":161.66616199999999,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":166.232662,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"venus":{"sidereal_longitude":157.20966199999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":32.434461999999996,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":126.8817,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":306.8817,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"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":2147,"month":9,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505488.770833,"kali_year":5249,"ahargana":1917023.2708,"sun":{"sidereal_longitude":141.0928,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":335.704,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.6112,"elapsed_within_tithi_degrees":2.6112},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1,"moon_longitude":335.704,"elapsed_within_degrees":2.3707},"yoga":{"number":9,"name":"Śūla","sum_longitude":116.7969},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.168,"elongation":165.389},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.168,"opposition_distance":14.611}},"eclipse_window_40days":[{"offset_days":-16,"type":"solar","occurs":true,"moon_latitude":-0.342,"elongation":2.308},{"offset_days":-1,"type":"lunar","occurs":true,"moon_latitude":-1.111,"opposition_distance":1.114}]},"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":"06:20","sunsetLocal":"18:05","solarNoonLocal":"12:13","dayLengthHours":11.73849604627081,"dayLengthDisplay":"11 Hours 44 Mins 19 Secs","nightLengthDisplay":"12 Hours 15 Mins 41 Secs","moonriseLocal":"19:13","moonsetLocal":"07:12","rahuKala":{"name":"Rāhu Kāla","start":"07:48","end":"09:16","startHours":7.807124113409064,"endHours":9.274436119192917,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:45","end":"12:13","startHours":10.741748124976766,"endHours":12.20906013076062,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:41","end":"15:09","startHours":13.676372136544469,"endHours":15.143684142328322,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:05","end":"09:28","startHours":9.078794518421736,"endHours":9.470077719964095,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:50","end":"07:09","startHours":6.828916109553163,"endHours":7.141942670787052,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:36","startHours":11.817776929218258,"endHours":12.60034333230298,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:46","end":"05:33","startHours":4.774679301455771,"endHours":5.557245704540493,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:22","end":"06:20","startHours":5.361604103769312,"endHours":6.339812107625213,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:57","startHours":14.165476138472421,"endHours":14.948042541557141,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:53","end":"18:17","startHours":17.878308153896025,"endHours":18.278308153896024,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:05","end":"18:34","startHours":18.078308153896025,"endHours":18.567412155823973,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:50","end":"19:35","startHours":17.828308153896025,"endHours":19.578308153896025,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:36","startHours":23.817776929218258,"endHours":24.60034333230298,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:20","end":"07:48","startHours":6.339812107625213,"endHours":7.807124113409064,"quality":"auspicious"},{"name":"Kāla","start":"07:48","end":"09:16","startHours":7.807124113409064,"endHours":9.274436119192917,"quality":"inauspicious"},{"name":"Śubha","start":"09:16","end":"10:45","startHours":9.274436119192917,"endHours":10.741748124976766,"quality":"auspicious"},{"name":"Roga","start":"10:45","end":"12:13","startHours":10.741748124976766,"endHours":12.20906013076062,"quality":"inauspicious"},{"name":"Udveg","start":"12:13","end":"13:41","startHours":12.20906013076062,"endHours":13.676372136544469,"quality":"inauspicious"},{"name":"Chala","start":"13:41","end":"15:09","startHours":13.676372136544469,"endHours":15.143684142328322,"quality":"neutral"},{"name":"Labha","start":"15:09","end":"16:37","startHours":15.143684142328322,"endHours":16.61099614811217,"quality":"auspicious"},{"name":"Amṛta","start":"16:37","end":"18:05","startHours":16.61099614811217,"endHours":18.078308153896025,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:05","end":"19:37","startHours":18.078308153896025,"endHours":19.61099614811217,"quality":"neutral"},{"name":"Labha","start":"19:37","end":"21:09","startHours":19.61099614811217,"endHours":21.143684142328322,"quality":"auspicious"},{"name":"Amṛta","start":"21:09","end":"22:41","startHours":21.143684142328322,"endHours":22.676372136544472,"quality":"auspicious"},{"name":"Kāla","start":"22:41","end":"00:13","startHours":22.676372136544472,"endHours":24.20906013076062,"quality":"inauspicious"},{"name":"Śubha","start":"00:13","end":"01:45","startHours":24.20906013076062,"endHours":25.741748124976766,"quality":"auspicious"},{"name":"Roga","start":"01:45","end":"03:16","startHours":25.741748124976766,"endHours":27.274436119192917,"quality":"inauspicious"},{"name":"Udveg","start":"03:16","end":"04:48","startHours":27.274436119192917,"endHours":28.807124113409067,"quality":"inauspicious"},{"name":"Chala","start":"04:48","end":"06:20","startHours":28.807124113409067,"endHours":30.339812107625214,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:20","end":"07:20","startHours":6.339812107625213,"endHours":7.339812107625213,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:20","end":"08:20","startHours":7.339812107625213,"endHours":8.339812107625214,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:20","end":"09:20","startHours":8.339812107625214,"endHours":9.339812107625214,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:20","end":"10:20","startHours":9.339812107625214,"endHours":10.339812107625214,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:20","end":"11:20","startHours":10.339812107625214,"endHours":11.339812107625214,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:20","end":"12:20","startHours":11.339812107625214,"endHours":12.339812107625214,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:20","end":"13:20","startHours":12.339812107625214,"endHours":13.339812107625214,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:20","end":"14:20","startHours":13.339812107625214,"endHours":14.339812107625214,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:20","end":"15:20","startHours":14.339812107625214,"endHours":15.339812107625214,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:20","end":"16:20","startHours":15.339812107625214,"endHours":16.339812107625214,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:20","end":"17:20","startHours":16.339812107625214,"endHours":17.339812107625214,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:20","end":"18:20","startHours":17.339812107625214,"endHours":18.339812107625214,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:20","end":"19:20","startHours":18.339812107625214,"endHours":19.339812107625214,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:20","end":"20:20","startHours":19.339812107625214,"endHours":20.339812107625214,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:20","end":"21:20","startHours":20.339812107625214,"endHours":21.339812107625214,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:20","end":"22:20","startHours":21.339812107625214,"endHours":22.339812107625214,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:20","end":"23:20","startHours":22.339812107625214,"endHours":23.339812107625214,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:20","end":"00:20","startHours":23.339812107625214,"endHours":24.339812107625214,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:20","end":"01:20","startHours":24.339812107625214,"endHours":25.339812107625214,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:20","end":"02:20","startHours":25.339812107625214,"endHours":26.339812107625214,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:20","end":"03:20","startHours":26.339812107625214,"endHours":27.339812107625214,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:20","end":"04:20","startHours":27.339812107625214,"endHours":28.339812107625214,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:20","end":"05:20","startHours":28.339812107625214,"endHours":29.339812107625214,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:20","end":"06:20","startHours":29.339812107625214,"endHours":30.339812107625214,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":4.712873042595696,"eotMinutes":4.014392154362758,"ayanamsa":25.9161}},"calendars":{"vikram_samvat":2204,"vikram_samvatsara":"Raudra","saka_samvat":2069,"saka_samvatsara":"Plavaṅga","bengali_samvat":1554,"malayalam_era":1323,"nanakshahi_year":678,"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":"Siṃha (Āvaṇi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Dvitīyā · Vikram 2204 Raudra · Śaka 2069 Plavaṅga"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 11, 2147 CE · Perth, Australia · Vidhyamitra","description":"September 11, 2147 CE for Perth, Australia: Kṛṣṇa Dvitīyā, sūryodaya 06:20, sūryāsta 18:05.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2147-09-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2147-09-11","sa":"https://sa.vidhyamitra.com/city/perth/2147-09-11","hi":"https://hi.vidhyamitra.com/city/perth/2147-09-11","x-default":"https://vidhyamitra.com/city/perth/2147-09-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T23:14:13.713Z","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":"2026-05-31T23:14:13.713Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T23:14:13.713Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}