{"id":"vidhyamitra:city-day:perth:2147-12-09:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2147-12-09","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2147-12-09","date_display":"December 9, 2147 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":2147,"month":12,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505577.770833,"kali_year":5249,"ahargana":1917112.2708,"sun":{"sidereal_longitude":229.8622,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":72.8499,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":202.9877,"elapsed_within_tithi_degrees":10.9877},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":72.8499,"elapsed_within_degrees":6.1832},"yoga":{"number":23,"name":"Śubha","sum_longitude":302.7122},"karana":{"half_tithi_index":33,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2147,"month":12,"day":9,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2505577.770833,"ahargana":1917112.2708,"kali_year":5249,"ayanamsa_lahiri":25.9196,"grahas":{"sun":{"sidereal_longitude":230.672961,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":71.669061,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false,"latitude":-3.4109},"mars":{"sidereal_longitude":207.47326099999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":244.70106099999998,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":184.83296100000007,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":266.442361,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":27.306061,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":122.1661,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":302.1661,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":2147,"month":12,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505577.770833,"kali_year":5249,"ahargana":1917112.2708,"sun":{"sidereal_longitude":229.8622,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":72.8499,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":202.9877,"elapsed_within_tithi_degrees":10.9877},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":72.8499,"elapsed_within_degrees":6.1832},"yoga":{"number":23,"name":"Śubha","sum_longitude":302.7122},"karana":{"half_tithi_index":33,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.411,"elongation":157.012},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.411,"opposition_distance":22.988}},"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":"05:05","sunsetLocal":"19:15","solarNoonLocal":"12:10","dayLengthHours":14.17002606351199,"dayLengthDisplay":"14 Hours 10 Mins 12 Secs","nightLengthDisplay":"9 Hours 49 Mins 48 Secs","moonriseLocal":"20:33","moonsetLocal":"06:35","rahuKala":{"name":"Rāhu Kāla","start":"08:37","end":"10:23","startHours":8.619012443318649,"endHours":10.390265701257647,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:56","end":"15:42","startHours":13.932772217135643,"endHours":15.704025475074644,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:05","end":"06:51","startHours":5.0765059274406505,"endHours":6.847759185379649,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:23","end":"08:51","startHours":8.382845342260115,"endHours":8.855179544377181,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:40","end":"06:03","startHours":5.666923680086984,"endHours":6.044791041780637,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:38","startHours":11.689184757079579,"endHours":12.633853161313711,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:11","end":"04:08","startHours":3.187169118972385,"endHours":4.131837523206518,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:54","end":"05:05","startHours":3.895670422147985,"endHours":5.0765059274406505,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:28","startHours":14.523189969781978,"endHours":15.46785837401611,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:03","end":"19:27","startHours":19.04653199095264,"endHours":19.44653199095264,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:15","end":"19:50","startHours":19.24653199095264,"endHours":19.83694974359897,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:00","end":"20:45","startHours":18.99653199095264,"endHours":20.74653199095264,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:38","startHours":23.689184757079577,"endHours":24.633853161313713,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:05","end":"06:51","startHours":5.0765059274406505,"endHours":6.847759185379649,"quality":"inauspicious"},{"name":"Śubha","start":"06:51","end":"08:37","startHours":6.847759185379649,"endHours":8.619012443318649,"quality":"auspicious"},{"name":"Roga","start":"08:37","end":"10:23","startHours":8.619012443318649,"endHours":10.390265701257647,"quality":"inauspicious"},{"name":"Udveg","start":"10:23","end":"12:10","startHours":10.390265701257647,"endHours":12.161518959196645,"quality":"inauspicious"},{"name":"Chala","start":"12:10","end":"13:56","startHours":12.161518959196645,"endHours":13.932772217135643,"quality":"neutral"},{"name":"Labha","start":"13:56","end":"15:42","startHours":13.932772217135643,"endHours":15.704025475074644,"quality":"auspicious"},{"name":"Amṛta","start":"15:42","end":"17:29","startHours":15.704025475074644,"endHours":17.475278733013642,"quality":"auspicious"},{"name":"Kāla","start":"17:29","end":"19:15","startHours":17.475278733013642,"endHours":19.24653199095264,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:15","end":"20:29","startHours":19.24653199095264,"endHours":20.475278733013642,"quality":"auspicious"},{"name":"Amṛta","start":"20:29","end":"21:42","startHours":20.475278733013642,"endHours":21.704025475074644,"quality":"auspicious"},{"name":"Kāla","start":"21:42","end":"22:56","startHours":21.704025475074644,"endHours":22.932772217135643,"quality":"inauspicious"},{"name":"Śubha","start":"22:56","end":"00:10","startHours":22.932772217135643,"endHours":24.161518959196645,"quality":"auspicious"},{"name":"Roga","start":"00:10","end":"01:23","startHours":24.161518959196645,"endHours":25.390265701257647,"quality":"inauspicious"},{"name":"Udveg","start":"01:23","end":"02:37","startHours":25.390265701257647,"endHours":26.619012443318645,"quality":"inauspicious"},{"name":"Chala","start":"02:37","end":"03:51","startHours":26.619012443318645,"endHours":27.847759185379648,"quality":"neutral"},{"name":"Labha","start":"03:51","end":"05:05","startHours":27.847759185379648,"endHours":29.07650592744065,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:05","end":"06:05","startHours":5.0765059274406505,"endHours":6.0765059274406505,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:05","end":"07:05","startHours":6.0765059274406505,"endHours":7.0765059274406505,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:05","end":"08:05","startHours":7.0765059274406505,"endHours":8.07650592744065,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:05","end":"09:05","startHours":8.07650592744065,"endHours":9.07650592744065,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:05","end":"10:05","startHours":9.07650592744065,"endHours":10.07650592744065,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:05","end":"11:05","startHours":10.07650592744065,"endHours":11.07650592744065,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:05","end":"12:05","startHours":11.07650592744065,"endHours":12.07650592744065,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:05","end":"13:05","startHours":12.07650592744065,"endHours":13.07650592744065,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:05","end":"14:05","startHours":13.07650592744065,"endHours":14.07650592744065,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:05","end":"15:05","startHours":14.07650592744065,"endHours":15.07650592744065,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:05","end":"16:05","startHours":15.07650592744065,"endHours":16.07650592744065,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:05","end":"17:05","startHours":16.07650592744065,"endHours":17.07650592744065,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:05","end":"18:05","startHours":17.07650592744065,"endHours":18.07650592744065,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:05","end":"19:05","startHours":18.07650592744065,"endHours":19.07650592744065,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:05","end":"20:05","startHours":19.07650592744065,"endHours":20.07650592744065,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:05","end":"21:05","startHours":20.07650592744065,"endHours":21.07650592744065,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:05","end":"22:05","startHours":21.07650592744065,"endHours":22.07650592744065,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:05","end":"23:05","startHours":22.07650592744065,"endHours":23.07650592744065,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:05","end":"00:05","startHours":23.07650592744065,"endHours":24.07650592744065,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:05","end":"01:05","startHours":24.07650592744065,"endHours":25.07650592744065,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:05","end":"02:05","startHours":25.07650592744065,"endHours":26.07650592744065,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:05","end":"03:05","startHours":26.07650592744065,"endHours":27.07650592744065,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:05","end":"04:05","startHours":27.07650592744065,"endHours":28.07650592744065,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:05","end":"05:05","startHours":28.07650592744065,"endHours":29.07650592744065,"planetary_lord":"Mercury"}],"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":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Kāladaṇḍa","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":-22.761283903851645,"eotMinutes":6.866862448201248,"ayanamsa":25.9196}},"calendars":{"vikram_samvat":2204,"vikram_samvatsara":"Raudra","saka_samvat":2069,"saka_samvatsara":"Plavaṅga","bengali_samvat":1554,"malayalam_era":1323,"nanakshahi_year":678,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","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":"Pauṣa Kṛṣṇa Dvitīyā · Vikram 2204 Raudra · Śaka 2069 Plavaṅga"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 9, 2147 CE · Perth, Australia · Vidhyamitra","description":"December 9, 2147 CE for Perth, Australia: Kṛṣṇa Dvitīyā, sūryodaya 05:05, sūryāsta 19:15.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2147-12-09","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2147-12-09","sa":"https://sa.vidhyamitra.com/city/perth/2147-12-09","hi":"https://hi.vidhyamitra.com/city/perth/2147-12-09","x-default":"https://vidhyamitra.com/city/perth/2147-12-09"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T03:12:28.232Z","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":"2026-06-01T03:12:28.232Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T03:12:28.232Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}