{"id":"vidhyamitra:city-day:perth:2180-04-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2180-04-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2180-04-06","date_display":"April 6, 2180 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":2180,"month":4,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517384.770833,"kali_year":5281,"ahargana":1928919.2708,"sun":{"sidereal_longitude":350.3198,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":114.2704,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":123.9506,"elapsed_within_tithi_degrees":3.9506},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":114.2704,"elapsed_within_degrees":7.6038},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":104.5903},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2180,"month":4,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517384.770833,"ahargana":1928919.2708,"kali_year":5281,"ayanamsa_lahiri":26.3711,"grahas":{"sun":{"sidereal_longitude":350.578547,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":112.29274699999996,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false,"latitude":-4.3964},"mars":{"sidereal_longitude":296.96664699999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":353.134247,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":72.98344700000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":7.900846999999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":62.49734699999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":216.5744,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":36.5744,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":"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":2180,"month":4,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517384.770833,"kali_year":5281,"ahargana":1928919.2708,"sun":{"sidereal_longitude":350.3198,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":114.2704,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":123.9506,"elapsed_within_tithi_degrees":3.9506},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":114.2704,"elapsed_within_degrees":7.6038},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":104.5903},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.396,"elongation":123.951},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.396,"opposition_distance":56.049}},"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":"06:32","sunsetLocal":"18:07","solarNoonLocal":"12:19","dayLengthHours":11.575362857258575,"dayLengthDisplay":"11 Hours 34 Mins 31 Secs","nightLengthDisplay":"12 Hours 25 Mins 29 Secs","moonriseLocal":"15:02","moonsetLocal":"01:50","rahuKala":{"name":"Rāhu Kāla","start":"13:46","end":"15:13","startHours":13.769384178808039,"endHours":15.21630453596536,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:32","end":"07:59","startHours":6.5347823930214295,"endHours":7.981702750178751,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:26","end":"10:53","startHours":9.428623107336072,"endHours":10.875543464493395,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:14","end":"09:37","startHours":9.23570039304843,"endHours":9.621545821623716,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:01","end":"07:20","startHours":7.0170891787405365,"endHours":7.325765521600765,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:42","startHours":11.936618393075433,"endHours":12.708309250226003,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:59","end":"05:46","startHours":4.991400678720286,"endHours":5.763091535870858,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:34","end":"06:32","startHours":5.570168821583215,"endHours":6.5347823930214295,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:15","end":"15:01","startHours":14.251690964527146,"endHours":15.023381821677718,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:55","end":"18:19","startHours":17.910145250280006,"endHours":18.310145250280005,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:07","end":"18:36","startHours":18.110145250280006,"endHours":18.592452035999113,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:52","end":"19:37","startHours":17.860145250280006,"endHours":19.610145250280006,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:42","startHours":23.93661839307543,"endHours":24.708309250226005,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:32","end":"07:59","startHours":6.5347823930214295,"endHours":7.981702750178751,"quality":"auspicious"},{"name":"Roga","start":"07:59","end":"09:26","startHours":7.981702750178751,"endHours":9.428623107336072,"quality":"inauspicious"},{"name":"Udveg","start":"09:26","end":"10:53","startHours":9.428623107336072,"endHours":10.875543464493395,"quality":"inauspicious"},{"name":"Chala","start":"10:53","end":"12:19","startHours":10.875543464493395,"endHours":12.322463821650718,"quality":"neutral"},{"name":"Labha","start":"12:19","end":"13:46","startHours":12.322463821650718,"endHours":13.769384178808039,"quality":"auspicious"},{"name":"Amṛta","start":"13:46","end":"15:13","startHours":13.769384178808039,"endHours":15.21630453596536,"quality":"auspicious"},{"name":"Kāla","start":"15:13","end":"16:40","startHours":15.21630453596536,"endHours":16.663224893122685,"quality":"inauspicious"},{"name":"Śubha","start":"16:40","end":"18:07","startHours":16.663224893122685,"endHours":18.110145250280006,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:07","end":"19:40","startHours":18.110145250280006,"endHours":19.663224893122685,"quality":"auspicious"},{"name":"Kāla","start":"19:40","end":"21:13","startHours":19.663224893122685,"endHours":21.216304535965364,"quality":"inauspicious"},{"name":"Śubha","start":"21:13","end":"22:46","startHours":21.216304535965364,"endHours":22.76938417880804,"quality":"auspicious"},{"name":"Roga","start":"22:46","end":"00:19","startHours":22.76938417880804,"endHours":24.322463821650718,"quality":"inauspicious"},{"name":"Udveg","start":"00:19","end":"01:53","startHours":24.322463821650718,"endHours":25.875543464493397,"quality":"inauspicious"},{"name":"Chala","start":"01:53","end":"03:26","startHours":25.875543464493397,"endHours":27.428623107336072,"quality":"neutral"},{"name":"Labha","start":"03:26","end":"04:59","startHours":27.428623107336072,"endHours":28.98170275017875,"quality":"auspicious"},{"name":"Amṛta","start":"04:59","end":"06:32","startHours":28.98170275017875,"endHours":30.53478239302143,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:32","end":"07:32","startHours":6.5347823930214295,"endHours":7.5347823930214295,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:32","end":"08:32","startHours":7.5347823930214295,"endHours":8.53478239302143,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:32","end":"09:32","startHours":8.53478239302143,"endHours":9.53478239302143,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:32","end":"10:32","startHours":9.53478239302143,"endHours":10.53478239302143,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:32","end":"11:32","startHours":10.53478239302143,"endHours":11.53478239302143,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:32","end":"12:32","startHours":11.53478239302143,"endHours":12.53478239302143,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:32","end":"13:32","startHours":12.53478239302143,"endHours":13.53478239302143,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:32","end":"14:32","startHours":13.53478239302143,"endHours":14.53478239302143,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:32","end":"15:32","startHours":14.53478239302143,"endHours":15.53478239302143,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:32","end":"16:32","startHours":15.53478239302143,"endHours":16.53478239302143,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:32","end":"17:32","startHours":16.53478239302143,"endHours":17.53478239302143,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:32","end":"18:32","startHours":17.53478239302143,"endHours":18.53478239302143,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:32","end":"19:32","startHours":18.53478239302143,"endHours":19.53478239302143,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:32","end":"20:32","startHours":19.53478239302143,"endHours":20.53478239302143,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:32","end":"21:32","startHours":20.53478239302143,"endHours":21.53478239302143,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:32","end":"22:32","startHours":21.53478239302143,"endHours":22.53478239302143,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:32","end":"23:32","startHours":22.53478239302143,"endHours":23.53478239302143,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:32","end":"00:32","startHours":23.53478239302143,"endHours":24.53478239302143,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:32","end":"01:32","startHours":24.53478239302143,"endHours":25.53478239302143,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:32","end":"02:32","startHours":25.53478239302143,"endHours":26.53478239302143,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:32","end":"03:32","startHours":26.53478239302143,"endHours":27.53478239302143,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:32","end":"04:32","startHours":27.53478239302143,"endHours":28.53478239302143,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:32","end":"05:32","startHours":28.53478239302143,"endHours":29.53478239302143,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:32","end":"06:32","startHours":29.53478239302143,"endHours":30.53478239302143,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":6.658503863583266,"eotMinutes":-2.7898292990430456,"ayanamsa":26.3711}},"calendars":{"vikram_samvat":2237,"vikram_samvatsara":"Vijaya","saka_samvat":2102,"saka_samvatsara":"Vikrama","bengali_samvat":1587,"malayalam_era":1356,"nanakshahi_year":711,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Ekādaśī · Vikram 2237 Vijaya · Śaka 2102 Vikrama"},"festivals":[{"id":"kamada-ekadashi","name":"Kāmadā Ekādaśī","name_sanskrit":"कामदा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Fulfills righteous desires; removes brahma-hatyā.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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, 2180 CE · Perth, Australia · Vidhyamitra","description":"April 6, 2180 CE for Perth, Australia: Śukla Ekādaśī, sūryodaya 06:32, sūryāsta 18:07.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2180-04-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2180-04-06","sa":"https://sa.vidhyamitra.com/city/perth/2180-04-06","hi":"https://hi.vidhyamitra.com/city/perth/2180-04-06","x-default":"https://vidhyamitra.com/city/perth/2180-04-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T20:11:38.486Z","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":"2026-05-31T20:11:38.486Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T20:11:38.486Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}