{"id":"vidhyamitra:city-day:perth:1990-12-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1990-12-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-12-12","date_display":"December 12, 1990 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":1990,"month":12,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448237.770833,"kali_year":5092,"ahargana":1859772.2708,"sun":{"sidereal_longitude":235.6232,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":177.0756,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":301.4524,"elapsed_within_tithi_degrees":1.4524},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":177.0756,"elapsed_within_degrees":3.7423},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":52.6988},"karana":{"half_tithi_index":50,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1990,"month":12,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2448237.770833,"ahargana":1859772.2708,"kali_year":5092,"ayanamsa_lahiri":23.7265,"grahas":{"sun":{"sidereal_longitude":236.013871,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":180.02507100000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false,"latitude":-4.3802},"mars":{"sidereal_longitude":37.027871000000005,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":255.91027099999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":109.54777100000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":246.10247100000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":269.540471,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":280.3152,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":100.3152,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":1990,"month":12,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448237.770833,"kali_year":5092,"ahargana":1859772.2708,"sun":{"sidereal_longitude":235.6232,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":177.0756,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":301.4524,"elapsed_within_tithi_degrees":1.4524},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":177.0756,"elapsed_within_degrees":3.7423},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":52.6988},"karana":{"half_tithi_index":50,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.38,"elongation":58.548},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.38,"opposition_distance":121.452}},"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":"19:17","solarNoonLocal":"12:11","dayLengthHours":14.198795013582135,"dayLengthDisplay":"14 Hours 11 Mins 56 Secs","nightLengthDisplay":"9 Hours 48 Mins 04 Secs","moonriseLocal":"02:01","moonsetLocal":"14:53","rahuKala":{"name":"Rāhu Kāla","start":"12:11","end":"13:58","startHours":12.183608515648114,"endHours":13.95845789234588,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:52","end":"08:38","startHours":6.859060385554814,"endHours":8.633909762252582,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:25","end":"12:11","startHours":10.408759138950348,"endHours":12.183608515648114,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:24","end":"08:52","startHours":8.397263178692878,"endHours":8.870556345812282,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:41","end":"06:03","startHours":5.675827467756303,"endHours":6.054462001451826,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:43","end":"12:39","startHours":11.71031534852871,"endHours":12.656901682767518,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:11","end":"04:08","startHours":3.1910383403794293,"endHours":4.137624674618238,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:54","end":"05:05","startHours":3.900978091058536,"endHours":5.084211008857047,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:33","end":"15:30","startHours":14.550074351245136,"endHours":15.496660685483945,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:05","end":"19:29","startHours":19.083006022439182,"endHours":19.48300602243918,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:17","end":"19:52","startHours":19.28300602243918,"endHours":19.874622481338438,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:02","end":"20:47","startHours":19.03300602243918,"endHours":20.78300602243918,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:43","end":"00:39","startHours":23.71031534852871,"endHours":24.65690168276752,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:05","end":"06:52","startHours":5.084211008857047,"endHours":6.859060385554814,"quality":"auspicious"},{"name":"Amṛta","start":"06:52","end":"08:38","startHours":6.859060385554814,"endHours":8.633909762252582,"quality":"auspicious"},{"name":"Kāla","start":"08:38","end":"10:25","startHours":8.633909762252582,"endHours":10.408759138950348,"quality":"inauspicious"},{"name":"Śubha","start":"10:25","end":"12:11","startHours":10.408759138950348,"endHours":12.183608515648114,"quality":"auspicious"},{"name":"Roga","start":"12:11","end":"13:58","startHours":12.183608515648114,"endHours":13.95845789234588,"quality":"inauspicious"},{"name":"Udveg","start":"13:58","end":"15:44","startHours":13.95845789234588,"endHours":15.73330726904365,"quality":"inauspicious"},{"name":"Chala","start":"15:44","end":"17:30","startHours":15.73330726904365,"endHours":17.508156645741416,"quality":"neutral"},{"name":"Labha","start":"17:30","end":"19:17","startHours":17.508156645741416,"endHours":19.28300602243918,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:17","end":"20:30","startHours":19.28300602243918,"endHours":20.508156645741416,"quality":"inauspicious"},{"name":"Chala","start":"20:30","end":"21:44","startHours":20.508156645741416,"endHours":21.73330726904365,"quality":"neutral"},{"name":"Labha","start":"21:44","end":"22:58","startHours":21.73330726904365,"endHours":22.95845789234588,"quality":"auspicious"},{"name":"Amṛta","start":"22:58","end":"00:11","startHours":22.95845789234588,"endHours":24.183608515648114,"quality":"auspicious"},{"name":"Kāla","start":"00:11","end":"01:25","startHours":24.183608515648114,"endHours":25.408759138950348,"quality":"inauspicious"},{"name":"Śubha","start":"01:25","end":"02:38","startHours":25.408759138950348,"endHours":26.63390976225258,"quality":"auspicious"},{"name":"Roga","start":"02:38","end":"03:52","startHours":26.63390976225258,"endHours":27.859060385554812,"quality":"inauspicious"},{"name":"Udveg","start":"03:52","end":"05:05","startHours":27.859060385554812,"endHours":29.084211008857046,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:05","end":"06:05","startHours":5.084211008857047,"endHours":6.084211008857047,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:05","end":"07:05","startHours":6.084211008857047,"endHours":7.084211008857047,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:05","end":"08:05","startHours":7.084211008857047,"endHours":8.084211008857046,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:05","end":"09:05","startHours":8.084211008857046,"endHours":9.084211008857046,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:05","end":"10:05","startHours":9.084211008857046,"endHours":10.084211008857046,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:05","end":"11:05","startHours":10.084211008857046,"endHours":11.084211008857046,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:05","end":"12:05","startHours":11.084211008857046,"endHours":12.084211008857046,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:05","end":"13:05","startHours":12.084211008857046,"endHours":13.084211008857046,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:05","end":"14:05","startHours":13.084211008857046,"endHours":14.084211008857046,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:05","end":"15:05","startHours":14.084211008857046,"endHours":15.084211008857046,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:05","end":"16:05","startHours":15.084211008857046,"endHours":16.084211008857046,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:05","end":"17:05","startHours":16.084211008857046,"endHours":17.084211008857046,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:05","end":"18:05","startHours":17.084211008857046,"endHours":18.084211008857046,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:05","end":"19:05","startHours":18.084211008857046,"endHours":19.084211008857046,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:05","end":"20:05","startHours":19.084211008857046,"endHours":20.084211008857046,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:05","end":"21:05","startHours":20.084211008857046,"endHours":21.084211008857046,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:05","end":"22:05","startHours":21.084211008857046,"endHours":22.084211008857046,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:05","end":"23:05","startHours":22.084211008857046,"endHours":23.084211008857046,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:05","end":"00:05","startHours":23.084211008857046,"endHours":24.084211008857046,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:05","end":"01:05","startHours":24.084211008857046,"endHours":25.084211008857046,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:05","end":"02:05","startHours":25.084211008857046,"endHours":26.084211008857046,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:05","end":"03:05","startHours":26.084211008857046,"endHours":27.084211008857046,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:05","end":"04:05","startHours":27.084211008857046,"endHours":28.084211008857046,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:05","end":"05:05","startHours":28.084211008857046,"endHours":29.084211008857046,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"North (Uttara)","chandraVasa":"North","rahuVasa":"South-West","anandadiYoga":{"name":"Cara","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":-23.039960282370373,"eotMinutes":5.541489061113115,"ayanamsa":23.7265}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"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 Ekādaśī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[{"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":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 12, 1990 CE · Perth, Australia · Vidhyamitra","description":"December 12, 1990 CE for Perth, Australia: Kṛṣṇa Ekādaśī, sūryodaya 05:05, sūryāsta 19:17.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1990-12-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1990-12-12","sa":"https://sa.vidhyamitra.com/city/perth/1990-12-12","hi":"https://hi.vidhyamitra.com/city/perth/1990-12-12","x-default":"https://vidhyamitra.com/city/perth/1990-12-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T08:50:03.399Z","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":"2026-06-01T08:50:03.399Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T08:50:03.399Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}