{"id":"vidhyamitra:city-day:perth:1971-06-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1971-06-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1971-06-06","date_display":"June 6, 1971 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":1971,"month":6,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441108.770833,"kali_year":5073,"ahargana":1852643.2708,"sun":{"sidereal_longitude":51.1588,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":195.4249,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":144.2662,"elapsed_within_tithi_degrees":0.2662},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":195.4249,"elapsed_within_degrees":8.7583},"yoga":{"number":19,"name":"Parigha","sum_longitude":246.5837},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1971,"month":6,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441108.770833,"ahargana":1852643.2708,"kali_year":5073,"ayanamsa_lahiri":23.4539,"grahas":{"sun":{"sidereal_longitude":51.250050999999985,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":196.41515100000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false,"latitude":-4.3911},"mars":{"sidereal_longitude":291.8499509999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":34.476050999999984,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":217.15655100000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":29.38235099999997,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":35.35955100000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":298.044,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":118.044,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":"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":1971,"month":6,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441108.770833,"kali_year":5073,"ahargana":1852643.2708,"sun":{"sidereal_longitude":51.1588,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":195.4249,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":144.2662,"elapsed_within_tithi_degrees":0.2662},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":195.4249,"elapsed_within_degrees":8.7583},"yoga":{"number":19,"name":"Parigha","sum_longitude":246.5837},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.391,"elongation":144.266},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.391,"opposition_distance":35.734}},"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":"07:11","sunsetLocal":"17:19","solarNoonLocal":"12:15","dayLengthHours":10.144226992774513,"dayLengthDisplay":"10 Hours 08 Mins 39 Secs","nightLengthDisplay":"13 Hours 51 Mins 21 Secs","moonriseLocal":"15:15","moonsetLocal":"04:36","rahuKala":{"name":"Rāhu Kāla","start":"16:03","end":"17:19","startHours":16.05430973961891,"endHours":17.322338113715723,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:15","end":"13:31","startHours":12.250224617328467,"endHours":13.518252991425282,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:47","end":"16:03","startHours":14.786281365522097,"endHours":16.05430973961891,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:33","end":"09:53","startHours":9.545097419255264,"endHours":9.883238319014415,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:36","end":"07:52","startHours":7.6007872456401495,"endHours":7.87129996544747,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:35","startHours":11.912083717569317,"endHours":12.588365517087617,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:50","end":"06:30","startHours":5.82554752190461,"endHours":6.50182932142291,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:20","end":"07:11","startHours":6.332758871543335,"endHours":7.178111120941211,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:37","startHours":13.94092911612422,"endHours":14.617210915642522,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:07","end":"17:31","startHours":17.122338113715724,"endHours":17.522338113715723,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:19","end":"17:45","startHours":17.322338113715723,"endHours":17.74501423841466,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:04","end":"18:49","startHours":17.072338113715723,"endHours":18.822338113715723,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:35","startHours":23.912083717569317,"endHours":24.588365517087617,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"07:11","end":"08:27","startHours":7.178111120941211,"endHours":8.446139495038025,"quality":"inauspicious"},{"name":"Chala","start":"08:27","end":"09:43","startHours":8.446139495038025,"endHours":9.71416786913484,"quality":"neutral"},{"name":"Labha","start":"09:43","end":"10:59","startHours":9.71416786913484,"endHours":10.982196243231654,"quality":"auspicious"},{"name":"Amṛta","start":"10:59","end":"12:15","startHours":10.982196243231654,"endHours":12.250224617328467,"quality":"auspicious"},{"name":"Kāla","start":"12:15","end":"13:31","startHours":12.250224617328467,"endHours":13.518252991425282,"quality":"inauspicious"},{"name":"Śubha","start":"13:31","end":"14:47","startHours":13.518252991425282,"endHours":14.786281365522097,"quality":"auspicious"},{"name":"Roga","start":"14:47","end":"16:03","startHours":14.786281365522097,"endHours":16.05430973961891,"quality":"inauspicious"},{"name":"Udveg","start":"16:03","end":"17:19","startHours":16.05430973961891,"endHours":17.322338113715723,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:19","end":"19:03","startHours":17.322338113715723,"endHours":19.05430973961891,"quality":"auspicious"},{"name":"Roga","start":"19:03","end":"20:47","startHours":19.05430973961891,"endHours":20.786281365522093,"quality":"inauspicious"},{"name":"Udveg","start":"20:47","end":"22:31","startHours":20.786281365522093,"endHours":22.518252991425282,"quality":"inauspicious"},{"name":"Chala","start":"22:31","end":"00:15","startHours":22.518252991425282,"endHours":24.250224617328467,"quality":"neutral"},{"name":"Labha","start":"00:15","end":"01:59","startHours":24.250224617328467,"endHours":25.982196243231652,"quality":"auspicious"},{"name":"Amṛta","start":"01:59","end":"03:43","startHours":25.982196243231652,"endHours":27.71416786913484,"quality":"auspicious"},{"name":"Kāla","start":"03:43","end":"05:27","startHours":27.71416786913484,"endHours":29.446139495038025,"quality":"inauspicious"},{"name":"Śubha","start":"05:27","end":"07:11","startHours":29.446139495038025,"endHours":31.17811112094121,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:11","end":"08:11","startHours":7.178111120941211,"endHours":8.17811112094121,"planetary_lord":"Sun"},{"name":"Hora 2","start":"08:11","end":"09:11","startHours":8.17811112094121,"endHours":9.17811112094121,"planetary_lord":"Mars"},{"name":"Hora 3","start":"09:11","end":"10:11","startHours":9.17811112094121,"endHours":10.17811112094121,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"10:11","end":"11:11","startHours":10.17811112094121,"endHours":11.17811112094121,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"11:11","end":"12:11","startHours":11.17811112094121,"endHours":12.17811112094121,"planetary_lord":"Moon"},{"name":"Hora 6","start":"12:11","end":"13:11","startHours":12.17811112094121,"endHours":13.17811112094121,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"13:11","end":"14:11","startHours":13.17811112094121,"endHours":14.17811112094121,"planetary_lord":"Venus"},{"name":"Hora 8","start":"14:11","end":"15:11","startHours":14.17811112094121,"endHours":15.17811112094121,"planetary_lord":"Sun"},{"name":"Hora 9","start":"15:11","end":"16:11","startHours":15.17811112094121,"endHours":16.17811112094121,"planetary_lord":"Mars"},{"name":"Hora 10","start":"16:11","end":"17:11","startHours":16.17811112094121,"endHours":17.17811112094121,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"17:11","end":"18:11","startHours":17.17811112094121,"endHours":18.17811112094121,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"18:11","end":"19:11","startHours":18.17811112094121,"endHours":19.17811112094121,"planetary_lord":"Moon"},{"name":"Hora 13","start":"19:11","end":"20:11","startHours":19.17811112094121,"endHours":20.17811112094121,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"20:11","end":"21:11","startHours":20.17811112094121,"endHours":21.17811112094121,"planetary_lord":"Venus"},{"name":"Hora 15","start":"21:11","end":"22:11","startHours":21.17811112094121,"endHours":22.17811112094121,"planetary_lord":"Sun"},{"name":"Hora 16","start":"22:11","end":"23:11","startHours":22.17811112094121,"endHours":23.17811112094121,"planetary_lord":"Mars"},{"name":"Hora 17","start":"23:11","end":"00:11","startHours":23.17811112094121,"endHours":24.17811112094121,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"00:11","end":"01:11","startHours":24.17811112094121,"endHours":25.17811112094121,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"01:11","end":"02:11","startHours":25.17811112094121,"endHours":26.17811112094121,"planetary_lord":"Moon"},{"name":"Hora 20","start":"02:11","end":"03:11","startHours":26.17811112094121,"endHours":27.17811112094121,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"03:11","end":"04:11","startHours":27.17811112094121,"endHours":28.17811112094121,"planetary_lord":"Venus"},{"name":"Hora 22","start":"04:11","end":"05:11","startHours":28.17811112094121,"endHours":29.17811112094121,"planetary_lord":"Sun"},{"name":"Hora 23","start":"05:11","end":"06:11","startHours":29.17811112094121,"endHours":30.17811112094121,"planetary_lord":"Mars"},{"name":"Hora 24","start":"06:11","end":"07:11","startHours":30.17811112094121,"endHours":31.17811112094121,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"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":"West (Paścim)","chandraVasa":"North","rahuVasa":"North-East","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":22.559523849797195,"eotMinutes":1.544522960291931,"ayanamsa":23.4539}},"calendars":{"vikram_samvat":2028,"vikram_samvatsara":"Raktākṣī","saka_samvat":1893,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1378,"malayalam_era":1147,"nanakshahi_year":502,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Jyeṣṭha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Śukla Trayodaśī · Vikram 2028 Raktākṣī · Śaka 1893 Virodhakṛt"},"festivals":[{"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":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 June 6, 1971 CE · Perth, Australia · Vidhyamitra","description":"June 6, 1971 CE for Perth, Australia: Śukla Trayodaśī, sūryodaya 07:11, sūryāsta 17:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1971-06-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1971-06-06","sa":"https://sa.vidhyamitra.com/city/perth/1971-06-06","hi":"https://hi.vidhyamitra.com/city/perth/1971-06-06","x-default":"https://vidhyamitra.com/city/perth/1971-06-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T00:03:59.917Z","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":"2026-06-01T00:03:59.917Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T00:03:59.917Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}