{"id":"vidhyamitra:city-day:perth:2077-09-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2077-09-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2077-09-20","date_display":"September 20, 2077 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":2077,"month":9,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2479931.770833,"kali_year":5179,"ahargana":1891466.2708,"sun":{"sidereal_longitude":151.8895,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":185.4092,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":33.5197,"elapsed_within_tithi_degrees":9.5197},"nakshatra":{"number":14,"name":"Citrā","pada":4,"moon_longitude":185.4092,"elapsed_within_degrees":12.0759},"yoga":{"number":26,"name":"Indra","sum_longitude":337.2987},"karana":{"half_tithi_index":5,"name":"Gara"},"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":2077,"month":9,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2479931.770833,"ahargana":1891466.2708,"kali_year":5179,"ayanamsa_lahiri":24.9387,"grahas":{"sun":{"sidereal_longitude":152.81382699999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":183.21792700000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false,"latitude":2.6181},"mars":{"sidereal_longitude":114.78612699999996,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":148.03162699999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":197.256527,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":197.06512699999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":249.06022699999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":41.0146,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":221.0146,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":"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":2077,"month":9,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2479931.770833,"kali_year":5179,"ahargana":1891466.2708,"sun":{"sidereal_longitude":151.8895,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":185.4092,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":33.5197,"elapsed_within_tithi_degrees":9.5197},"nakshatra":{"number":14,"name":"Citrā","pada":4,"moon_longitude":185.4092,"elapsed_within_degrees":12.0759},"yoga":{"number":26,"name":"Indra","sum_longitude":337.2987},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.618,"elongation":33.52},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.618,"opposition_distance":146.48}},"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":"06:08","sunsetLocal":"18:11","solarNoonLocal":"12:09","dayLengthHours":12.05658623747092,"dayLengthDisplay":"12 Hours 03 Mins 24 Secs","nightLengthDisplay":"11 Hours 56 Mins 36 Secs","moonriseLocal":"07:41","moonsetLocal":"20:41","rahuKala":{"name":"Rāhu Kāla","start":"07:38","end":"09:08","startHours":7.632298248255831,"endHours":9.139371527939696,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:39","end":"12:09","startHours":10.64644480762356,"endHours":12.153518087307425,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:40","end":"15:10","startHours":13.66059136699129,"endHours":15.167664646675156,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:56","end":"09:20","startHours":8.938428423981847,"endHours":9.340314631897545,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:57","startHours":6.627582728466588,"endHours":6.9490916947991455,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:45","end":"12:33","startHours":11.751631879391729,"endHours":12.555404295223125,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:31","end":"05:19","startHours":4.517680136909177,"endHours":5.321452552740571,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:08","startHours":5.120509448782722,"endHours":6.125224968571966,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:58","startHours":14.162949126885913,"endHours":14.966721542717307,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:59","end":"18:23","startHours":17.981811206042888,"endHours":18.381811206042887,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:11","end":"18:41","startHours":18.181811206042887,"endHours":18.68416896593751,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:56","end":"19:41","startHours":17.931811206042887,"endHours":19.681811206042887,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:45","end":"00:33","startHours":23.751631879391727,"endHours":24.555404295223124,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:08","end":"07:38","startHours":6.125224968571966,"endHours":7.632298248255831,"quality":"auspicious"},{"name":"Kāla","start":"07:38","end":"09:08","startHours":7.632298248255831,"endHours":9.139371527939696,"quality":"inauspicious"},{"name":"Śubha","start":"09:08","end":"10:39","startHours":9.139371527939696,"endHours":10.64644480762356,"quality":"auspicious"},{"name":"Roga","start":"10:39","end":"12:09","startHours":10.64644480762356,"endHours":12.153518087307425,"quality":"inauspicious"},{"name":"Udveg","start":"12:09","end":"13:40","startHours":12.153518087307425,"endHours":13.66059136699129,"quality":"inauspicious"},{"name":"Chala","start":"13:40","end":"15:10","startHours":13.66059136699129,"endHours":15.167664646675156,"quality":"neutral"},{"name":"Labha","start":"15:10","end":"16:40","startHours":15.167664646675156,"endHours":16.674737926359022,"quality":"auspicious"},{"name":"Amṛta","start":"16:40","end":"18:11","startHours":16.674737926359022,"endHours":18.181811206042887,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:11","end":"19:40","startHours":18.181811206042887,"endHours":19.674737926359022,"quality":"neutral"},{"name":"Labha","start":"19:40","end":"21:10","startHours":19.674737926359022,"endHours":21.167664646675156,"quality":"auspicious"},{"name":"Amṛta","start":"21:10","end":"22:40","startHours":21.167664646675156,"endHours":22.66059136699129,"quality":"auspicious"},{"name":"Kāla","start":"22:40","end":"00:09","startHours":22.66059136699129,"endHours":24.153518087307425,"quality":"inauspicious"},{"name":"Śubha","start":"00:09","end":"01:39","startHours":24.153518087307425,"endHours":25.64644480762356,"quality":"auspicious"},{"name":"Roga","start":"01:39","end":"03:08","startHours":25.64644480762356,"endHours":27.139371527939698,"quality":"inauspicious"},{"name":"Udveg","start":"03:08","end":"04:38","startHours":27.139371527939698,"endHours":28.632298248255832,"quality":"inauspicious"},{"name":"Chala","start":"04:38","end":"06:08","startHours":28.632298248255832,"endHours":30.125224968571967,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.125224968571966,"endHours":7.125224968571966,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.125224968571966,"endHours":8.125224968571967,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.125224968571967,"endHours":9.125224968571967,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.125224968571967,"endHours":10.125224968571967,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.125224968571967,"endHours":11.125224968571967,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.125224968571967,"endHours":12.125224968571967,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.125224968571967,"endHours":13.125224968571967,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.125224968571967,"endHours":14.125224968571967,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.125224968571967,"endHours":15.125224968571967,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.125224968571967,"endHours":16.125224968571967,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.125224968571967,"endHours":17.125224968571967,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.125224968571967,"endHours":18.125224968571967,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.125224968571967,"endHours":19.125224968571967,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.125224968571967,"endHours":20.125224968571967,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.125224968571967,"endHours":21.125224968571967,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.125224968571967,"endHours":22.125224968571967,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.125224968571967,"endHours":23.125224968571967,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.125224968571967,"endHours":24.125224968571967,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.125224968571967,"endHours":25.125224968571967,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.125224968571967,"endHours":26.125224968571967,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.125224968571967,"endHours":27.125224968571967,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.125224968571967,"endHours":28.125224968571967,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.125224968571967,"endHours":29.125224968571967,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.125224968571967,"endHours":30.125224968571967,"planetary_lord":"Venus"}],"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":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"North-East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":0.8936999906616961,"eotMinutes":7.346914761554353,"ayanamsa":24.9387}},"calendars":{"vikram_samvat":2134,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1999,"saka_samvatsara":"Hemalambī","bengali_samvat":1484,"malayalam_era":1253,"nanakshahi_year":608,"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":"Kanyā (Puraṭṭāsi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Tṛtīyā · Vikram 2134 Sādhāraṇa · Śaka 1999 Hemalambī"},"festivals":[{"id":"varaha-jayanti","name":"Varāha Jayantī","name_sanskrit":"वराह जयन्ती","tradition":"Vaishnava","associated_deity":"Varāha (3rd daśāvatāra of Krishna)","deity_avatara_index":12,"significance":"Varāha lifted Bhū-Devī from the cosmic ocean.","vrata":false,"detection":{"tithi_number":3,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":4,"sources":["Bhāgavata 3.13"]}],"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 Varāha Jayantī 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 20, 2077 CE · Perth, Australia · Vidhyamitra","description":"September 20, 2077 CE for Perth, Australia: Śukla Tṛtīyā, sūryodaya 06:08, sūryāsta 18:11.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2077-09-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2077-09-20","sa":"https://sa.vidhyamitra.com/city/perth/2077-09-20","hi":"https://hi.vidhyamitra.com/city/perth/2077-09-20","x-default":"https://vidhyamitra.com/city/perth/2077-09-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-06T10:48:55.676Z","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":"2026-09-06T10:48:55.676Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-06T10:48:55.676Z","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"}}}