{"id":"vidhyamitra:city-day:perth:2011-04-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2011-04-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-04-06","date_display":"April 6, 2011 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":2011,"month":4,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455657.770833,"kali_year":5112,"ahargana":1867192.2708,"sun":{"sidereal_longitude":352.0197,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":21.1311,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":29.1114,"elapsed_within_tithi_degrees":5.1114},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3,"moon_longitude":21.1311,"elapsed_within_degrees":7.7978},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":13.1508},"karana":{"half_tithi_index":4,"name":"Taitila"},"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":2011,"month":4,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455657.770833,"ahargana":1867192.2708,"kali_year":5112,"ayanamsa_lahiri":24.0103,"grahas":{"sun":{"sidereal_longitude":351.888372,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":18.600972000000013,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false,"latitude":3.2374},"mars":{"sidereal_longitude":338.80517199999997,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":358.325372,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":352.307872,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":317.5857719999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":169.47647200000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":247.1679,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":67.1679,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":2011,"month":4,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455657.770833,"kali_year":5112,"ahargana":1867192.2708,"sun":{"sidereal_longitude":352.0197,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":21.1311,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":29.1114,"elapsed_within_tithi_degrees":5.1114},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3,"moon_longitude":21.1311,"elapsed_within_degrees":7.7978},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":13.1508},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.237,"elongation":29.111},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.237,"opposition_distance":150.889}},"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":"06:31","sunsetLocal":"18:08","solarNoonLocal":"12:19","dayLengthHours":11.609289849938298,"dayLengthDisplay":"11 Hours 36 Mins 33 Secs","nightLengthDisplay":"12 Hours 23 Mins 27 Secs","moonriseLocal":"08:43","moonsetLocal":"19:29","rahuKala":{"name":"Rāhu Kāla","start":"12:19","end":"13:46","startHours":12.322463821650718,"endHours":13.773625052893006,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:58","end":"09:25","startHours":7.9689801279238575,"endHours":9.420141359166145,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:52","end":"12:19","startHours":10.871302590408431,"endHours":12.322463821650718,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:14","end":"09:37","startHours":9.226653195000505,"endHours":9.613629523331783,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:00","end":"07:19","startHours":7.0015393070956655,"endHours":7.311120369760687,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:43","startHours":11.935487493319442,"endHours":12.709440149981994,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:58","end":"05:45","startHours":4.969913583356464,"endHours":5.743866240019017,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:33","end":"06:31","startHours":5.550378075853379,"endHours":6.51781889668157,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:15","end":"15:02","startHours":14.257345463307102,"endHours":15.031298119969655,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:56","end":"18:20","startHours":17.92710874661987,"endHours":18.327108746619867,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:08","end":"18:37","startHours":18.127108746619868,"endHours":18.610829157033965,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:53","end":"19:38","startHours":17.877108746619868,"endHours":19.627108746619868,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:43","startHours":23.935487493319442,"endHours":24.709440149981994,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:31","end":"07:58","startHours":6.51781889668157,"endHours":7.9689801279238575,"quality":"auspicious"},{"name":"Amṛta","start":"07:58","end":"09:25","startHours":7.9689801279238575,"endHours":9.420141359166145,"quality":"auspicious"},{"name":"Kāla","start":"09:25","end":"10:52","startHours":9.420141359166145,"endHours":10.871302590408431,"quality":"inauspicious"},{"name":"Śubha","start":"10:52","end":"12:19","startHours":10.871302590408431,"endHours":12.322463821650718,"quality":"auspicious"},{"name":"Roga","start":"12:19","end":"13:46","startHours":12.322463821650718,"endHours":13.773625052893006,"quality":"inauspicious"},{"name":"Udveg","start":"13:46","end":"15:13","startHours":13.773625052893006,"endHours":15.224786284135293,"quality":"inauspicious"},{"name":"Chala","start":"15:13","end":"16:41","startHours":15.224786284135293,"endHours":16.67594751537758,"quality":"neutral"},{"name":"Labha","start":"16:41","end":"18:08","startHours":16.67594751537758,"endHours":18.127108746619868,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:08","end":"19:41","startHours":18.127108746619868,"endHours":19.67594751537758,"quality":"inauspicious"},{"name":"Chala","start":"19:41","end":"21:13","startHours":19.67594751537758,"endHours":21.224786284135295,"quality":"neutral"},{"name":"Labha","start":"21:13","end":"22:46","startHours":21.224786284135295,"endHours":22.773625052893006,"quality":"auspicious"},{"name":"Amṛta","start":"22:46","end":"00:19","startHours":22.773625052893006,"endHours":24.322463821650718,"quality":"auspicious"},{"name":"Kāla","start":"00:19","end":"01:52","startHours":24.322463821650718,"endHours":25.871302590408433,"quality":"inauspicious"},{"name":"Śubha","start":"01:52","end":"03:25","startHours":25.871302590408433,"endHours":27.420141359166145,"quality":"auspicious"},{"name":"Roga","start":"03:25","end":"04:58","startHours":27.420141359166145,"endHours":28.968980127923857,"quality":"inauspicious"},{"name":"Udveg","start":"04:58","end":"06:31","startHours":28.968980127923857,"endHours":30.517818896681568,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:31","end":"07:31","startHours":6.51781889668157,"endHours":7.51781889668157,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:31","end":"08:31","startHours":7.51781889668157,"endHours":8.51781889668157,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:31","end":"09:31","startHours":8.51781889668157,"endHours":9.51781889668157,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:31","end":"10:31","startHours":9.51781889668157,"endHours":10.51781889668157,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:31","end":"11:31","startHours":10.51781889668157,"endHours":11.51781889668157,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:31","end":"12:31","startHours":11.51781889668157,"endHours":12.51781889668157,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:31","end":"13:31","startHours":12.51781889668157,"endHours":13.51781889668157,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:31","end":"14:31","startHours":13.51781889668157,"endHours":14.51781889668157,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:31","end":"15:31","startHours":14.51781889668157,"endHours":15.51781889668157,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:31","end":"16:31","startHours":15.51781889668157,"endHours":16.517818896681568,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:31","end":"17:31","startHours":16.517818896681568,"endHours":17.517818896681568,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:31","end":"18:31","startHours":17.517818896681568,"endHours":18.517818896681568,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:31","end":"19:31","startHours":18.517818896681568,"endHours":19.517818896681568,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:31","end":"20:31","startHours":19.517818896681568,"endHours":20.517818896681568,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:31","end":"21:31","startHours":20.517818896681568,"endHours":21.517818896681568,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:31","end":"22:31","startHours":21.517818896681568,"endHours":22.517818896681568,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:31","end":"23:31","startHours":22.517818896681568,"endHours":23.517818896681568,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:31","end":"00:31","startHours":23.517818896681568,"endHours":24.517818896681568,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:31","end":"01:31","startHours":24.517818896681568,"endHours":25.517818896681568,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:31","end":"02:31","startHours":25.517818896681568,"endHours":26.517818896681568,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:31","end":"03:31","startHours":26.517818896681568,"endHours":27.517818896681568,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:31","end":"04:31","startHours":27.517818896681568,"endHours":28.517818896681568,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:31","end":"05:31","startHours":28.517818896681568,"endHours":29.517818896681568,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:31","end":"06:31","startHours":29.517818896681568,"endHours":30.517818896681568,"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"South-West","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":6.254999200186658,"eotMinutes":-2.7898292990430456,"ayanamsa":24.0103}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Tṛtīyā · Vikram 2068 Krodhi · Śaka 1933 Khara"},"festivals":[{"id":"matsya-jayanti","name":"Matsya Jayantī","name_sanskrit":"मत्स्य जयन्ती","tradition":"Vaishnava","associated_deity":"Matsya (1st daśāvatāra of Krishna)","deity_avatara_index":10,"significance":"Matsya saved Vaivasvata Manu and the Vedas during the cosmic deluge.","vrata":false,"detection":{"tithi_number":3,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":4,"sources":["Bhāgavata 8.24","Matsya Purāṇa 1-2"]},{"id":"mina-sankranti","name":"Mīna Saṅkrānti","name_sanskrit":"मीन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Pisces; Mīna-māsa begins.","vrata":false,"detection":{"sun_rashi":"Mīna"},"precedence":5}],"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 April 6, 2011 CE · Perth, Australia · Vidhyamitra","description":"April 6, 2011 CE for Perth, Australia: Śukla Tṛtīyā, sūryodaya 06:31, sūryāsta 18:08.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2011-04-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2011-04-06","sa":"https://sa.vidhyamitra.com/city/perth/2011-04-06","hi":"https://hi.vidhyamitra.com/city/perth/2011-04-06","x-default":"https://vidhyamitra.com/city/perth/2011-04-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T01:59:54.263Z","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":"2026-05-16T01:59:54.263Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T01:59:54.263Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}