{"id":"vidhyamitra:city-day:perth:2155-12-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2155-12-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2155-12-04","date_display":"December 4, 2155 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":2155,"month":12,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508494.770833,"kali_year":5257,"ahargana":1920029.2708,"sun":{"sidereal_longitude":224.6791,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":345.5977,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":120.9186,"elapsed_within_tithi_degrees":0.9186},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":345.5977,"elapsed_within_degrees":12.2643},"yoga":{"number":16,"name":"Siddhi","sum_longitude":210.2767},"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":2155,"month":12,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2508494.770833,"ahargana":1920029.2708,"kali_year":5257,"ayanamsa_lahiri":26.0311,"grahas":{"sun":{"sidereal_longitude":225.55051000000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":347.34401,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false,"latitude":1.3884},"mars":{"sidereal_longitude":262.53351,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":243.76681000000008,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":70.27911,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":260.70061,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":142.53940999999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":327.6094,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":147.6094,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":2155,"month":12,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508494.770833,"kali_year":5257,"ahargana":1920029.2708,"sun":{"sidereal_longitude":224.6791,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":345.5977,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":120.9186,"elapsed_within_tithi_degrees":0.9186},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":345.5977,"elapsed_within_degrees":12.2643},"yoga":{"number":16,"name":"Siddhi","sum_longitude":210.2767},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.388,"elongation":120.919},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.388,"opposition_distance":59.081}},"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":"05:04","sunsetLocal":"19:11","solarNoonLocal":"12:08","dayLengthHours":14.10950116835425,"dayLengthDisplay":"14 Hours 06 Mins 34 Secs","nightLengthDisplay":"9 Hours 53 Mins 26 Secs","moonriseLocal":"14:25","moonsetLocal":"02:04","rahuKala":{"name":"Rāhu Kāla","start":"13:53","end":"15:39","startHours":13.890307237142562,"endHours":15.65399488318684,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:04","end":"06:50","startHours":5.071869006921154,"endHours":6.835556652965435,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:36","end":"10:22","startHours":8.599244299009715,"endHours":10.362931945053997,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:22","end":"08:50","startHours":8.364085946203812,"endHours":8.834402651815621,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:40","end":"06:02","startHours":5.659764888935914,"endHours":6.036018253425361,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:39","end":"12:36","startHours":11.656302885486472,"endHours":12.596936296710087,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:11","end":"04:08","startHours":3.1906021844739207,"endHours":4.131235595697537,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:54","end":"05:04","startHours":3.896077242891633,"endHours":5.071869006921154,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:29","end":"15:25","startHours":14.478203119157321,"endHours":15.418836530380938,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:59","end":"19:23","startHours":18.981370175275405,"endHours":19.381370175275404,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:11","end":"19:46","startHours":19.181370175275404,"endHours":19.769266057290164,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:56","end":"20:41","startHours":18.931370175275404,"endHours":20.681370175275404,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:39","end":"00:36","startHours":23.656302885486472,"endHours":24.596936296710087,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:04","end":"06:50","startHours":5.071869006921154,"endHours":6.835556652965435,"quality":"auspicious"},{"name":"Roga","start":"06:50","end":"08:36","startHours":6.835556652965435,"endHours":8.599244299009715,"quality":"inauspicious"},{"name":"Udveg","start":"08:36","end":"10:22","startHours":8.599244299009715,"endHours":10.362931945053997,"quality":"inauspicious"},{"name":"Chala","start":"10:22","end":"12:08","startHours":10.362931945053997,"endHours":12.12661959109828,"quality":"neutral"},{"name":"Labha","start":"12:08","end":"13:53","startHours":12.12661959109828,"endHours":13.890307237142562,"quality":"auspicious"},{"name":"Amṛta","start":"13:53","end":"15:39","startHours":13.890307237142562,"endHours":15.65399488318684,"quality":"auspicious"},{"name":"Kāla","start":"15:39","end":"17:25","startHours":15.65399488318684,"endHours":17.417682529231122,"quality":"inauspicious"},{"name":"Śubha","start":"17:25","end":"19:11","startHours":17.417682529231122,"endHours":19.181370175275404,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:11","end":"20:25","startHours":19.181370175275404,"endHours":20.417682529231122,"quality":"auspicious"},{"name":"Kāla","start":"20:25","end":"21:39","startHours":20.417682529231122,"endHours":21.65399488318684,"quality":"inauspicious"},{"name":"Śubha","start":"21:39","end":"22:53","startHours":21.65399488318684,"endHours":22.89030723714256,"quality":"auspicious"},{"name":"Roga","start":"22:53","end":"00:08","startHours":22.89030723714256,"endHours":24.12661959109828,"quality":"inauspicious"},{"name":"Udveg","start":"00:08","end":"01:22","startHours":24.12661959109828,"endHours":25.362931945053997,"quality":"inauspicious"},{"name":"Chala","start":"01:22","end":"02:36","startHours":25.362931945053997,"endHours":26.59924429900972,"quality":"neutral"},{"name":"Labha","start":"02:36","end":"03:50","startHours":26.59924429900972,"endHours":27.835556652965437,"quality":"auspicious"},{"name":"Amṛta","start":"03:50","end":"05:04","startHours":27.835556652965437,"endHours":29.071869006921155,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:04","end":"06:04","startHours":5.071869006921154,"endHours":6.071869006921154,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:04","end":"07:04","startHours":6.071869006921154,"endHours":7.071869006921154,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:04","end":"08:04","startHours":7.071869006921154,"endHours":8.071869006921155,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:04","end":"09:04","startHours":8.071869006921155,"endHours":9.071869006921155,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:04","end":"10:04","startHours":9.071869006921155,"endHours":10.071869006921155,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:04","end":"11:04","startHours":10.071869006921155,"endHours":11.071869006921155,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:04","end":"12:04","startHours":11.071869006921155,"endHours":12.071869006921155,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:04","end":"13:04","startHours":12.071869006921155,"endHours":13.071869006921155,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:04","end":"14:04","startHours":13.071869006921155,"endHours":14.071869006921155,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:04","end":"15:04","startHours":14.071869006921155,"endHours":15.071869006921155,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:04","end":"16:04","startHours":15.071869006921155,"endHours":16.071869006921155,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:04","end":"17:04","startHours":16.071869006921155,"endHours":17.071869006921155,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:04","end":"18:04","startHours":17.071869006921155,"endHours":18.071869006921155,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:04","end":"19:04","startHours":18.071869006921155,"endHours":19.071869006921155,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:04","end":"20:04","startHours":19.071869006921155,"endHours":20.071869006921155,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:04","end":"21:04","startHours":20.071869006921155,"endHours":21.071869006921155,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:04","end":"22:04","startHours":21.071869006921155,"endHours":22.071869006921155,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:04","end":"23:04","startHours":22.071869006921155,"endHours":23.071869006921155,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:04","end":"00:04","startHours":23.071869006921155,"endHours":24.071869006921155,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:04","end":"01:04","startHours":24.071869006921155,"endHours":25.071869006921155,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:04","end":"02:04","startHours":25.071869006921155,"endHours":26.071869006921155,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:04","end":"03:04","startHours":26.071869006921155,"endHours":27.071869006921155,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:04","end":"04:04","startHours":27.071869006921155,"endHours":28.071869006921155,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:04","end":"05:04","startHours":28.071869006921155,"endHours":29.071869006921155,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-22.170156305332675,"eotMinutes":8.960824534103129,"ayanamsa":26.0311}},"calendars":{"vikram_samvat":2212,"vikram_samvatsara":"Vibhava","saka_samvat":2077,"saka_samvatsara":"Rākṣasa","bengali_samvat":1562,"malayalam_era":1331,"nanakshahi_year":686,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Ekādaśī · Vikram 2212 Vibhava · Śaka 2077 Rākṣasa"},"festivals":[{"id":"gita-jayanti","name":"Gītā Jayantī (= Mokṣadā Ekādaśī)","name_sanskrit":"गीता जयन्ती","tradition":"Vaishnava","associated_deity":"Krishna (Bhagavad-Gītā speaker)","significance":"Day Bhagavad Gītā was delivered at Kurukṣetra (Mahābhārata Day 1).","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":1,"related_chart":"krishna","historical_anchor":{"event":"Bhagavad Gītā delivered at Kurukṣetra (Mahābhārata Day 1)","date_julian":"-3137-10-04","location":"Kurukṣetra"},"sources":["Bhagavad Gītā (Mahābhārata, Bhīṣma Parva)"]},{"id":"vaikuntha-ekadashi","name":"Vaikuṇṭha Ekādaśī","name_sanskrit":"वैकुण्ठ एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Most sacred Ekādaśī of the year; 'Vaikuṇṭha-dvāram udghaṭitam'.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":2},{"id":"mokshada-ekadashi","name":"Mokṣadā Ekādaśī (Gītā Jayantī)","name_sanskrit":"मोक्षदा एकादशी / गीता जयन्ती","tradition":"Vaishnava","associated_deity":"Krishna (Bhagavad Gītā delivery)","significance":"Day Bhagavad Gītā was delivered at Kurukṣetra.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":3},{"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 December 4, 2155 CE · Perth, Australia · Vidhyamitra","description":"December 4, 2155 CE for Perth, Australia: Śukla Ekādaśī, sūryodaya 05:04, sūryāsta 19:11.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2155-12-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2155-12-04","sa":"https://sa.vidhyamitra.com/city/perth/2155-12-04","hi":"https://hi.vidhyamitra.com/city/perth/2155-12-04","x-default":"https://vidhyamitra.com/city/perth/2155-12-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T22:38:37.443Z","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":"2026-05-31T22:38:37.443Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T22:38:37.443Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}