{"id":"vidhyamitra:city-day:perth:2156-12-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2156-12-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2156-12-10","date_display":"December 10, 2156 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":2156,"month":12,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508866.770833,"kali_year":5258,"ahargana":1920401.2708,"sun":{"sidereal_longitude":231.5728,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":197.5939,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":326.0211,"elapsed_within_tithi_degrees":2.0211},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":197.5939,"elapsed_within_degrees":10.9273},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":69.1668},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2156,"month":12,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2508866.770833,"ahargana":1920401.2708,"kali_year":5258,"ayanamsa_lahiri":26.0453,"grahas":{"sun":{"sidereal_longitude":232.39109699999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":199.038997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false,"latitude":-4.2198},"mars":{"sidereal_longitude":161.65229699999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":212.09629700000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":104.81239699999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":true},"venus":{"sidereal_longitude":214.705197,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":155.12599699999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":307.8991,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":127.8991,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":2156,"month":12,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508866.770833,"kali_year":5258,"ahargana":1920401.2708,"sun":{"sidereal_longitude":231.5728,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":197.5939,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":326.0211,"elapsed_within_tithi_degrees":2.0211},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":197.5939,"elapsed_within_degrees":10.9273},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":69.1668},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.22,"elongation":33.979},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.22,"opposition_distance":146.021}},"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":"19:16","solarNoonLocal":"12:10","dayLengthHours":14.187767970847657,"dayLengthDisplay":"14 Hours 11 Mins 16 Secs","nightLengthDisplay":"9 Hours 48 Mins 44 Secs","moonriseLocal":"03:12","moonsetLocal":"16:42","rahuKala":{"name":"Rāhu Kāla","start":"10:24","end":"12:10","startHours":10.395328804673124,"endHours":12.168799801029081,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:43","end":"17:29","startHours":15.715741793740996,"endHours":17.489212790096953,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:51","end":"08:37","startHours":6.848386811961211,"endHours":8.621857808317168,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:23","end":"08:51","startHours":8.385395008803041,"endHours":8.858320607831295,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:40","end":"06:03","startHours":5.6660728143905725,"endHours":6.044413293613177,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:42","end":"12:39","startHours":11.695874202000827,"endHours":12.641725400057336,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:11","end":"04:08","startHours":3.1832134194922324,"endHours":4.129064617548742,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:54","end":"05:04","startHours":3.892601818034615,"endHours":5.074915815605253,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:32","end":"15:29","startHours":14.53342779617036,"endHours":15.47927899422687,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:04","end":"19:28","startHours":19.06268378645291,"endHours":19.46268378645291,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:16","end":"19:51","startHours":19.26268378645291,"endHours":19.85384078523823,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:01","end":"20:46","startHours":19.01268378645291,"endHours":20.76268378645291,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:42","end":"00:39","startHours":23.695874202000827,"endHours":24.641725400057336,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:04","end":"06:51","startHours":5.074915815605253,"endHours":6.848386811961211,"quality":"neutral"},{"name":"Labha","start":"06:51","end":"08:37","startHours":6.848386811961211,"endHours":8.621857808317168,"quality":"auspicious"},{"name":"Amṛta","start":"08:37","end":"10:24","startHours":8.621857808317168,"endHours":10.395328804673124,"quality":"auspicious"},{"name":"Kāla","start":"10:24","end":"12:10","startHours":10.395328804673124,"endHours":12.168799801029081,"quality":"inauspicious"},{"name":"Śubha","start":"12:10","end":"13:57","startHours":12.168799801029081,"endHours":13.942270797385039,"quality":"auspicious"},{"name":"Roga","start":"13:57","end":"15:43","startHours":13.942270797385039,"endHours":15.715741793740996,"quality":"inauspicious"},{"name":"Udveg","start":"15:43","end":"17:29","startHours":15.715741793740996,"endHours":17.489212790096953,"quality":"inauspicious"},{"name":"Chala","start":"17:29","end":"19:16","startHours":17.489212790096953,"endHours":19.26268378645291,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:16","end":"20:29","startHours":19.26268378645291,"endHours":20.489212790096953,"quality":"inauspicious"},{"name":"Udveg","start":"20:29","end":"21:43","startHours":20.489212790096953,"endHours":21.715741793740996,"quality":"inauspicious"},{"name":"Chala","start":"21:43","end":"22:57","startHours":21.715741793740996,"endHours":22.94227079738504,"quality":"neutral"},{"name":"Labha","start":"22:57","end":"00:10","startHours":22.94227079738504,"endHours":24.16879980102908,"quality":"auspicious"},{"name":"Amṛta","start":"00:10","end":"01:24","startHours":24.16879980102908,"endHours":25.395328804673124,"quality":"auspicious"},{"name":"Kāla","start":"01:24","end":"02:37","startHours":25.395328804673124,"endHours":26.621857808317166,"quality":"inauspicious"},{"name":"Śubha","start":"02:37","end":"03:51","startHours":26.621857808317166,"endHours":27.848386811961213,"quality":"auspicious"},{"name":"Roga","start":"03:51","end":"05:04","startHours":27.848386811961213,"endHours":29.07491581560525,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:04","end":"06:04","startHours":5.074915815605253,"endHours":6.074915815605253,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:04","end":"07:04","startHours":6.074915815605253,"endHours":7.074915815605253,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:04","end":"08:04","startHours":7.074915815605253,"endHours":8.074915815605253,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:04","end":"09:04","startHours":8.074915815605253,"endHours":9.074915815605253,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:04","end":"10:04","startHours":9.074915815605253,"endHours":10.074915815605253,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:04","end":"11:04","startHours":10.074915815605253,"endHours":11.074915815605253,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:04","end":"12:04","startHours":11.074915815605253,"endHours":12.074915815605253,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:04","end":"13:04","startHours":12.074915815605253,"endHours":13.074915815605253,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:04","end":"14:04","startHours":13.074915815605253,"endHours":14.074915815605253,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:04","end":"15:04","startHours":14.074915815605253,"endHours":15.074915815605253,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:04","end":"16:04","startHours":15.074915815605253,"endHours":16.07491581560525,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:04","end":"17:04","startHours":16.07491581560525,"endHours":17.07491581560525,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:04","end":"18:04","startHours":17.07491581560525,"endHours":18.07491581560525,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:04","end":"19:04","startHours":18.07491581560525,"endHours":19.07491581560525,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:04","end":"20:04","startHours":19.07491581560525,"endHours":20.07491581560525,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:04","end":"21:04","startHours":20.07491581560525,"endHours":21.07491581560525,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:04","end":"22:04","startHours":21.07491581560525,"endHours":22.07491581560525,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:04","end":"23:04","startHours":22.07491581560525,"endHours":23.07491581560525,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:04","end":"00:04","startHours":23.07491581560525,"endHours":24.07491581560525,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:04","end":"01:04","startHours":24.07491581560525,"endHours":25.07491581560525,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:04","end":"02:04","startHours":25.07491581560525,"endHours":26.07491581560525,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:04","end":"03:04","startHours":26.07491581560525,"endHours":27.07491581560525,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:04","end":"04:04","startHours":27.07491581560525,"endHours":28.07491581560525,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:04","end":"05:04","startHours":28.07491581560525,"endHours":29.07491581560525,"planetary_lord":"Mars"}],"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":"South-East","anandadiYoga":{"name":"Dhvaja","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":-22.933320402882472,"eotMinutes":6.4300119382551255,"ayanamsa":26.0453}},"calendars":{"vikram_samvat":2213,"vikram_samvatsara":"Śukla","saka_samvat":2078,"saka_samvatsara":"Nala","bengali_samvat":1563,"malayalam_era":1332,"nanakshahi_year":687,"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 Trayodaśī · Vikram 2213 Śukla · Śaka 2078 Nala"},"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":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 10, 2156 CE · Perth, Australia · Vidhyamitra","description":"December 10, 2156 CE for Perth, Australia: Kṛṣṇa Trayodaśī, sūryodaya 05:04, sūryāsta 19:16.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2156-12-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2156-12-10","sa":"https://sa.vidhyamitra.com/city/perth/2156-12-10","hi":"https://hi.vidhyamitra.com/city/perth/2156-12-10","x-default":"https://vidhyamitra.com/city/perth/2156-12-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T13:11:44.062Z","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":"2026-06-01T13:11:44.062Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T13:11:44.062Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}