{"id":"vidhyamitra:city-day:perth:2030-09-09:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2030-09-09","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2030-09-09","date_display":"September 9, 2030 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2030,"month":9,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462753.770833,"kali_year":5132,"ahargana":1874288.2708,"sun":{"sidereal_longitude":141.3586,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":286.5995,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":145.2409,"elapsed_within_tithi_degrees":1.2409},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":286.5995,"elapsed_within_degrees":6.5995},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":67.9581},"karana":{"half_tithi_index":24,"name":"Kaulava"},"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":2030,"month":9,"day":9,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2462753.770833,"ahargana":1874288.2708,"kali_year":5132,"ayanamsa_lahiri":24.2817,"grahas":{"sun":{"sidereal_longitude":142.14435300000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":286.185553,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false,"latitude":3.7034},"mars":{"sidereal_longitude":110.65945299999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":126.50305300000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":207.92365300000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":130.78355299999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":44.41795300000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":231.1877,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":51.1877,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2030,"month":9,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462753.770833,"kali_year":5132,"ahargana":1874288.2708,"sun":{"sidereal_longitude":141.3586,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":286.5995,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":145.2409,"elapsed_within_tithi_degrees":1.2409},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":286.5995,"elapsed_within_degrees":6.5995},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":67.9581},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.703,"elongation":145.241},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.703,"opposition_distance":34.759}},"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":"06:23","sunsetLocal":"18:04","solarNoonLocal":"12:13","dayLengthHours":11.684672353114937,"dayLengthDisplay":"11 Hours 41 Mins 05 Secs","nightLengthDisplay":"12 Hours 18 Mins 55 Secs","moonriseLocal":"15:01","moonsetLocal":"04:38","rahuKala":{"name":"Rāhu Kāla","start":"07:50","end":"09:18","startHours":7.839524107195093,"endHours":9.30010815133446,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:46","end":"12:13","startHours":10.760692195473826,"endHours":12.221276239613193,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:41","end":"15:09","startHours":13.68186028375256,"endHours":15.14244432789193,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:06","end":"09:30","startHours":9.105363612115877,"endHours":9.494852690553042,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:52","end":"07:11","startHours":6.865801411102181,"endHours":7.177392673851912,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:37","startHours":11.83178716117603,"endHours":12.61076531805036,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:49","end":"05:36","startHours":4.820983749307067,"endHours":5.599961906181396,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:24","end":"06:23","startHours":5.405217366962813,"endHours":6.378940063055725,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:57","startHours":14.168721631799016,"endHours":14.947699788673345,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:52","end":"18:16","startHours":17.863612416170664,"endHours":18.263612416170663,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:04","end":"18:33","startHours":18.063612416170663,"endHours":18.55047376421712,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:49","end":"19:34","startHours":17.813612416170663,"endHours":19.563612416170663,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:37","startHours":23.83178716117603,"endHours":24.610765318050362,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:23","end":"07:50","startHours":6.378940063055725,"endHours":7.839524107195093,"quality":"auspicious"},{"name":"Kāla","start":"07:50","end":"09:18","startHours":7.839524107195093,"endHours":9.30010815133446,"quality":"inauspicious"},{"name":"Śubha","start":"09:18","end":"10:46","startHours":9.30010815133446,"endHours":10.760692195473826,"quality":"auspicious"},{"name":"Roga","start":"10:46","end":"12:13","startHours":10.760692195473826,"endHours":12.221276239613193,"quality":"inauspicious"},{"name":"Udveg","start":"12:13","end":"13:41","startHours":12.221276239613193,"endHours":13.68186028375256,"quality":"inauspicious"},{"name":"Chala","start":"13:41","end":"15:09","startHours":13.68186028375256,"endHours":15.14244432789193,"quality":"neutral"},{"name":"Labha","start":"15:09","end":"16:36","startHours":15.14244432789193,"endHours":16.603028372031297,"quality":"auspicious"},{"name":"Amṛta","start":"16:36","end":"18:04","startHours":16.603028372031297,"endHours":18.063612416170663,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:04","end":"19:36","startHours":18.063612416170663,"endHours":19.603028372031297,"quality":"neutral"},{"name":"Labha","start":"19:36","end":"21:09","startHours":19.603028372031297,"endHours":21.14244432789193,"quality":"auspicious"},{"name":"Amṛta","start":"21:09","end":"22:41","startHours":21.14244432789193,"endHours":22.681860283752563,"quality":"auspicious"},{"name":"Kāla","start":"22:41","end":"00:13","startHours":22.681860283752563,"endHours":24.221276239613196,"quality":"inauspicious"},{"name":"Śubha","start":"00:13","end":"01:46","startHours":24.221276239613196,"endHours":25.76069219547383,"quality":"auspicious"},{"name":"Roga","start":"01:46","end":"03:18","startHours":25.76069219547383,"endHours":27.30010815133446,"quality":"inauspicious"},{"name":"Udveg","start":"03:18","end":"04:50","startHours":27.30010815133446,"endHours":28.839524107195093,"quality":"inauspicious"},{"name":"Chala","start":"04:50","end":"06:23","startHours":28.839524107195093,"endHours":30.378940063055726,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:23","end":"07:23","startHours":6.378940063055725,"endHours":7.378940063055725,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:23","end":"08:23","startHours":7.378940063055725,"endHours":8.378940063055726,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:23","end":"09:23","startHours":8.378940063055726,"endHours":9.378940063055726,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:23","end":"10:23","startHours":9.378940063055726,"endHours":10.378940063055726,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:23","end":"11:23","startHours":10.378940063055726,"endHours":11.378940063055726,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:23","end":"12:23","startHours":11.378940063055726,"endHours":12.378940063055726,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:23","end":"13:23","startHours":12.378940063055726,"endHours":13.378940063055726,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:23","end":"14:23","startHours":13.378940063055726,"endHours":14.378940063055726,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:23","end":"15:23","startHours":14.378940063055726,"endHours":15.378940063055726,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:23","end":"16:23","startHours":15.378940063055726,"endHours":16.378940063055726,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:23","end":"17:23","startHours":16.378940063055726,"endHours":17.378940063055726,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:23","end":"18:23","startHours":17.378940063055726,"endHours":18.378940063055726,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:23","end":"19:23","startHours":18.378940063055726,"endHours":19.378940063055726,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:23","end":"20:23","startHours":19.378940063055726,"endHours":20.378940063055726,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:23","end":"21:23","startHours":20.378940063055726,"endHours":21.378940063055726,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:23","end":"22:23","startHours":21.378940063055726,"endHours":22.378940063055726,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:23","end":"23:23","startHours":22.378940063055726,"endHours":23.378940063055726,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:23","end":"00:23","startHours":23.378940063055726,"endHours":24.378940063055726,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:23","end":"01:23","startHours":24.378940063055726,"endHours":25.378940063055726,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:23","end":"02:23","startHours":25.378940063055726,"endHours":26.378940063055726,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:23","end":"03:23","startHours":26.378940063055726,"endHours":27.378940063055726,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:23","end":"04:23","startHours":27.378940063055726,"endHours":28.378940063055726,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:23","end":"05:23","startHours":28.378940063055726,"endHours":29.378940063055726,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:23","end":"06:23","startHours":29.378940063055726,"endHours":30.378940063055726,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"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":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Cara","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":5.356236548866573,"eotMinutes":3.2814256232083188,"ayanamsa":24.2817}},"calendars":{"vikram_samvat":2087,"vikram_samvatsara":"Rudhirodgāri","saka_samvat":1952,"saka_samvatsara":"Sādhāraṇa","bengali_samvat":1437,"malayalam_era":1206,"nanakshahi_year":561,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","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":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Trayodaśī · Vikram 2087 Rudhirodgāri · Śaka 1952 Sādhāraṇa"},"festivals":[{"id":"onam","name":"Onam (Vāmana / King Bali)","name_sanskrit":"ओणम् (वामन-बलि स्मरण)","tradition":"Regional","associated_deity":"Vāmana + King Bali","significance":"Kerala festival; King Bali's annual return to Kerala. Aligned with Thiru-Onam (Śravaṇa nakshatra in Bhādrapada).","vrata":false,"detection":{"nakshatra_name":"Śravaṇa","lunar_month":"Bhādrapada"},"precedence":2},{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7, 6.34-35.","step_count":5,"url":"/walk/chandra-walk","steps":[{"label":"BG 6.5","url":"/bhagavad-gita/6/5","purpose":"Lift the self by the Self; begin the walk with inner responsibility."},{"label":"BG 6.6","url":"/bhagavad-gita/6/6","purpose":"See the mind as friend when mastered and enemy when unmastered."},{"label":"BG 6.7","url":"/bhagavad-gita/6/7","purpose":"Stabilize the conquered mind in heat/cold, honor/dishonor, pleasure/pain."},{"label":"BG 6.34","url":"/bhagavad-gita/6/34","purpose":"Name the restless mind honestly before trying to discipline it."},{"label":"BG 6.35","url":"/bhagavad-gita/6/35","purpose":"Complete with abhyāsa and vairāgya: practice and detachment."}]},"reason":"Dedicated festival walk for Onam (Vāmana / King Bali) · Pradoṣa Vrata is not live yet; 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 9, 2030 CE · Perth, Australia · Vidhyamitra","description":"September 9, 2030 CE for Perth, Australia: Śukla Trayodaśī, sūryodaya 06:23, sūryāsta 18:04.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2030-09-09","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2030-09-09","sa":"https://sa.vidhyamitra.com/city/perth/2030-09-09","hi":"https://hi.vidhyamitra.com/city/perth/2030-09-09","x-default":"https://vidhyamitra.com/city/perth/2030-09-09"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-11T13:21:10.146Z","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":"2026-09-11T13:21:10.146Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-11T13:21:10.146Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}