{"id":"vidhyamitra:city-day:perth:2104-12-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2104-12-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2104-12-04","date_display":"December 4, 2104 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":2104,"month":12,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489867.770833,"kali_year":5206,"ahargana":1901402.2708,"sun":{"sidereal_longitude":225.9014,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":70.9036,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":205.0021,"elapsed_within_tithi_degrees":1.0021},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":70.9036,"elapsed_within_degrees":4.2369},"yoga":{"number":23,"name":"Śubha","sum_longitude":296.805},"karana":{"half_tithi_index":34,"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":2104,"month":12,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2489867.770833,"ahargana":1901402.2708,"kali_year":5206,"ayanamsa_lahiri":25.3187,"grahas":{"sun":{"sidereal_longitude":226.64149900000007,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":71.62879900000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false,"latitude":-1.2653},"mars":{"sidereal_longitude":235.61659899999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":205.113199,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":299.52689899999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":271.838399,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":229.107399,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":234.5575,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":54.5575,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":2104,"month":12,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489867.770833,"kali_year":5206,"ahargana":1901402.2708,"sun":{"sidereal_longitude":225.9014,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":70.9036,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":205.0021,"elapsed_within_tithi_degrees":1.0021},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":70.9036,"elapsed_within_degrees":4.2369},"yoga":{"number":23,"name":"Śubha","sum_longitude":296.805},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.265,"elongation":154.998},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.265,"opposition_distance":25.002}},"eclipse_window_40days":[{"offset_days":-2,"type":"lunar","occurs":true,"moon_latitude":0.94,"opposition_distance":1.264}]},"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":14.11468377116281,"dayLengthDisplay":"14 Hours 06 Mins 53 Secs","nightLengthDisplay":"9 Hours 53 Mins 07 Secs","moonriseLocal":"20:47","moonsetLocal":"06:48","rahuKala":{"name":"Rāhu Kāla","start":"13:53","end":"15:39","startHours":13.890955062493632,"endHours":15.655290533888984,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:04","end":"06:50","startHours":5.069277705516876,"endHours":6.833613176912227,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:36","end":"10:22","startHours":8.597948648307579,"endHours":10.36228411970293,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:22","end":"08:50","startHours":8.362703918788197,"endHours":8.833193377826959,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:39","end":"06:02","startHours":5.657389529315326,"endHours":6.033781096546335,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:39","end":"12:36","startHours":11.65613013205952,"endHours":12.597109050137039,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:11","end":"04:08","startHours":3.1873198693618345,"endHours":4.128298787439355,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:54","end":"05:04","startHours":3.893054057919975,"endHours":5.069277705516876,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:29","end":"15:25","startHours":14.479066886292081,"endHours":15.420045804369602,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:59","end":"19:23","startHours":18.983961476679685,"endHours":19.383961476679683,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:11","end":"19:46","startHours":19.183961476679684,"endHours":19.772073300478134,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:56","end":"20:41","startHours":18.933961476679684,"endHours":20.683961476679684,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:39","end":"00:36","startHours":23.65613013205952,"endHours":24.59710905013704,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:04","end":"06:50","startHours":5.069277705516876,"endHours":6.833613176912227,"quality":"auspicious"},{"name":"Roga","start":"06:50","end":"08:36","startHours":6.833613176912227,"endHours":8.597948648307579,"quality":"inauspicious"},{"name":"Udveg","start":"08:36","end":"10:22","startHours":8.597948648307579,"endHours":10.36228411970293,"quality":"inauspicious"},{"name":"Chala","start":"10:22","end":"12:08","startHours":10.36228411970293,"endHours":12.12661959109828,"quality":"neutral"},{"name":"Labha","start":"12:08","end":"13:53","startHours":12.12661959109828,"endHours":13.890955062493632,"quality":"auspicious"},{"name":"Amṛta","start":"13:53","end":"15:39","startHours":13.890955062493632,"endHours":15.655290533888984,"quality":"auspicious"},{"name":"Kāla","start":"15:39","end":"17:25","startHours":15.655290533888984,"endHours":17.419626005284332,"quality":"inauspicious"},{"name":"Śubha","start":"17:25","end":"19:11","startHours":17.419626005284332,"endHours":19.183961476679684,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:11","end":"20:25","startHours":19.183961476679684,"endHours":20.419626005284332,"quality":"auspicious"},{"name":"Kāla","start":"20:25","end":"21:39","startHours":20.419626005284332,"endHours":21.65529053388898,"quality":"inauspicious"},{"name":"Śubha","start":"21:39","end":"22:53","startHours":21.65529053388898,"endHours":22.89095506249363,"quality":"auspicious"},{"name":"Roga","start":"22:53","end":"00:08","startHours":22.89095506249363,"endHours":24.12661959109828,"quality":"inauspicious"},{"name":"Udveg","start":"00:08","end":"01:22","startHours":24.12661959109828,"endHours":25.362284119702927,"quality":"inauspicious"},{"name":"Chala","start":"01:22","end":"02:36","startHours":25.362284119702927,"endHours":26.59794864830758,"quality":"neutral"},{"name":"Labha","start":"02:36","end":"03:50","startHours":26.59794864830758,"endHours":27.833613176912227,"quality":"auspicious"},{"name":"Amṛta","start":"03:50","end":"05:04","startHours":27.833613176912227,"endHours":29.069277705516875,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:04","end":"06:04","startHours":5.069277705516876,"endHours":6.069277705516876,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:04","end":"07:04","startHours":6.069277705516876,"endHours":7.069277705516876,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:04","end":"08:04","startHours":7.069277705516876,"endHours":8.069277705516875,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:04","end":"09:04","startHours":8.069277705516875,"endHours":9.069277705516875,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:04","end":"10:04","startHours":9.069277705516875,"endHours":10.069277705516875,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:04","end":"11:04","startHours":10.069277705516875,"endHours":11.069277705516875,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:04","end":"12:04","startHours":11.069277705516875,"endHours":12.069277705516875,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:04","end":"13:04","startHours":12.069277705516875,"endHours":13.069277705516875,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:04","end":"14:04","startHours":13.069277705516875,"endHours":14.069277705516875,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:04","end":"15:04","startHours":14.069277705516875,"endHours":15.069277705516875,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:04","end":"16:04","startHours":15.069277705516875,"endHours":16.069277705516875,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:04","end":"17:04","startHours":16.069277705516875,"endHours":17.069277705516875,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:04","end":"18:04","startHours":17.069277705516875,"endHours":18.069277705516875,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:04","end":"19:04","startHours":18.069277705516875,"endHours":19.069277705516875,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:04","end":"20:04","startHours":19.069277705516875,"endHours":20.069277705516875,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:04","end":"21:04","startHours":20.069277705516875,"endHours":21.069277705516875,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:04","end":"22:04","startHours":21.069277705516875,"endHours":22.069277705516875,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:04","end":"23:04","startHours":22.069277705516875,"endHours":23.069277705516875,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:04","end":"00:04","startHours":23.069277705516875,"endHours":24.069277705516875,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:04","end":"01:04","startHours":24.069277705516875,"endHours":25.069277705516875,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:04","end":"02:04","startHours":25.069277705516875,"endHours":26.069277705516875,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:04","end":"03:04","startHours":26.069277705516875,"endHours":27.069277705516875,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:04","end":"04:04","startHours":27.069277705516875,"endHours":28.069277705516875,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:04","end":"05:04","startHours":28.069277705516875,"endHours":29.069277705516875,"planetary_lord":"Moon"}],"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","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South","rahuVasa":"North-West","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-22.221029039340515,"eotMinutes":8.960824534103129,"ayanamsa":25.3187}},"calendars":{"vikram_samvat":2161,"vikram_samvatsara":"Īśvara","saka_samvat":2026,"saka_samvatsara":"Raktākṣī","bengali_samvat":1511,"malayalam_era":1280,"nanakshahi_year":635,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Kārtika","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 Kṛṣṇa Tṛtīyā · Vikram 2161 Īśvara · Śaka 2026 Raktākṣī"},"festivals":[],"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, 2104 CE · Perth, Australia · Vidhyamitra","description":"December 4, 2104 CE for Perth, Australia: Kṛṣṇa Tṛtīyā, sūryodaya 05:04, sūryāsta 19:11.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2104-12-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2104-12-04","sa":"https://sa.vidhyamitra.com/city/perth/2104-12-04","hi":"https://hi.vidhyamitra.com/city/perth/2104-12-04","x-default":"https://vidhyamitra.com/city/perth/2104-12-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T02:44:31.507Z","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":"2026-06-01T02:44:31.507Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T02:44:31.507Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}