{"id":"vidhyamitra:city-day:perth:2009-12-29:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2009-12-29","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2009-12-29","date_display":"December 29, 2009 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":2009,"month":12,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455194.770833,"kali_year":5111,"ahargana":1866729.2708,"sun":{"sidereal_longitude":253.1663,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":36.4178,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":143.2515,"elapsed_within_tithi_degrees":11.2515},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":36.4178,"elapsed_within_degrees":9.7511},"yoga":{"number":22,"name":"Sādhya","sum_longitude":289.5841},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2009,"month":12,"day":29,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455194.770833,"ahargana":1866729.2708,"kali_year":5111,"ayanamsa_lahiri":23.9926,"grahas":{"sun":{"sidereal_longitude":253.45156199999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":35.80136199999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false,"latitude":3.6976},"mars":{"sidereal_longitude":115.077762,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":267.172862,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":302.037462,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":250.01226199999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":160.20526199999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":271.6999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":91.6999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"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":2009,"month":12,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455194.770833,"kali_year":5111,"ahargana":1866729.2708,"sun":{"sidereal_longitude":253.1663,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":36.4178,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":143.2515,"elapsed_within_tithi_degrees":11.2515},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":36.4178,"elapsed_within_degrees":9.7511},"yoga":{"number":22,"name":"Sādhya","sum_longitude":289.5841},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.698,"elongation":143.252},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.698,"opposition_distance":36.748}},"eclipse_window_40days":[{"offset_days":3,"type":"lunar","occurs":true,"moon_latitude":1.039,"opposition_distance":1.922},{"offset_days":17,"type":"solar","occurs":true,"moon_latitude":-0.153,"elongation":1.79}]},"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":"05:12","sunsetLocal":"19:25","solarNoonLocal":"12:19","dayLengthHours":14.218224481401261,"dayLengthDisplay":"14 Hours 13 Mins 06 Secs","nightLengthDisplay":"9 Hours 46 Mins 54 Secs","moonriseLocal":"16:38","moonsetLocal":"02:59","rahuKala":{"name":"Rāhu Kāla","start":"15:52","end":"17:39","startHours":15.869635727759807,"endHours":17.646913787934963,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:46","end":"10:32","startHours":8.760523487059178,"endHours":10.537801547234334,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:19","end":"14:06","startHours":12.315079607409492,"endHours":14.09235766758465,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:31","end":"09:00","startHours":8.523553079035823,"endHours":8.997493895082531,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:48","end":"06:11","startHours":5.7983933867672475,"endHours":6.177546039604614,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:47","startHours":11.841138791362784,"endHours":12.7890204234562,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:19","end":"04:15","startHours":3.310204102522027,"endHours":4.258085734615444,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:01","end":"05:12","startHours":4.02111532659209,"endHours":5.205967366708862,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:41","end":"15:38","startHours":14.684783687643037,"endHours":15.632665319736455,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:13","end":"19:37","startHours":19.224191848110124,"endHours":19.624191848110122,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:25","end":"20:01","startHours":19.424191848110123,"endHours":20.01661786816851,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:10","end":"20:55","startHours":19.174191848110123,"endHours":20.924191848110123,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:47","startHours":23.841138791362784,"endHours":24.789020423456204,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:12","end":"06:59","startHours":5.205967366708862,"endHours":6.98324542688402,"quality":"inauspicious"},{"name":"Udveg","start":"06:59","end":"08:46","startHours":6.98324542688402,"endHours":8.760523487059178,"quality":"inauspicious"},{"name":"Chala","start":"08:46","end":"10:32","startHours":8.760523487059178,"endHours":10.537801547234334,"quality":"neutral"},{"name":"Labha","start":"10:32","end":"12:19","startHours":10.537801547234334,"endHours":12.315079607409492,"quality":"auspicious"},{"name":"Amṛta","start":"12:19","end":"14:06","startHours":12.315079607409492,"endHours":14.09235766758465,"quality":"auspicious"},{"name":"Kāla","start":"14:06","end":"15:52","startHours":14.09235766758465,"endHours":15.869635727759807,"quality":"inauspicious"},{"name":"Śubha","start":"15:52","end":"17:39","startHours":15.869635727759807,"endHours":17.646913787934963,"quality":"auspicious"},{"name":"Roga","start":"17:39","end":"19:25","startHours":17.646913787934963,"endHours":19.424191848110123,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:25","end":"20:39","startHours":19.424191848110123,"endHours":20.646913787934967,"quality":"inauspicious"},{"name":"Śubha","start":"20:39","end":"21:52","startHours":20.646913787934967,"endHours":21.869635727759807,"quality":"auspicious"},{"name":"Roga","start":"21:52","end":"23:06","startHours":21.869635727759807,"endHours":23.09235766758465,"quality":"inauspicious"},{"name":"Udveg","start":"23:06","end":"00:19","startHours":23.09235766758465,"endHours":24.315079607409494,"quality":"inauspicious"},{"name":"Chala","start":"00:19","end":"01:32","startHours":24.315079607409494,"endHours":25.537801547234334,"quality":"neutral"},{"name":"Labha","start":"01:32","end":"02:46","startHours":25.537801547234334,"endHours":26.760523487059178,"quality":"auspicious"},{"name":"Amṛta","start":"02:46","end":"03:59","startHours":26.760523487059178,"endHours":27.983245426884018,"quality":"auspicious"},{"name":"Kāla","start":"03:59","end":"05:12","startHours":27.983245426884018,"endHours":29.20596736670886,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:12","end":"06:12","startHours":5.205967366708862,"endHours":6.205967366708862,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:12","end":"07:12","startHours":6.205967366708862,"endHours":7.205967366708862,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:12","end":"08:12","startHours":7.205967366708862,"endHours":8.205967366708862,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:12","end":"09:12","startHours":8.205967366708862,"endHours":9.205967366708862,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:12","end":"10:12","startHours":9.205967366708862,"endHours":10.205967366708862,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:12","end":"11:12","startHours":10.205967366708862,"endHours":11.205967366708862,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:12","end":"12:12","startHours":11.205967366708862,"endHours":12.205967366708862,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:12","end":"13:12","startHours":12.205967366708862,"endHours":13.205967366708862,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:12","end":"14:12","startHours":13.205967366708862,"endHours":14.205967366708862,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:12","end":"15:12","startHours":14.205967366708862,"endHours":15.205967366708862,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:12","end":"16:12","startHours":15.205967366708862,"endHours":16.20596736670886,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:12","end":"17:12","startHours":16.20596736670886,"endHours":17.20596736670886,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:12","end":"18:12","startHours":17.20596736670886,"endHours":18.20596736670886,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:12","end":"19:12","startHours":18.20596736670886,"endHours":19.20596736670886,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:12","end":"20:12","startHours":19.20596736670886,"endHours":20.20596736670886,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:12","end":"21:12","startHours":20.20596736670886,"endHours":21.20596736670886,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:12","end":"22:12","startHours":21.20596736670886,"endHours":22.20596736670886,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:12","end":"23:12","startHours":22.20596736670886,"endHours":23.20596736670886,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:12","end":"00:12","startHours":23.20596736670886,"endHours":24.20596736670886,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:12","end":"01:12","startHours":24.20596736670886,"endHours":25.20596736670886,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:12","end":"02:12","startHours":25.20596736670886,"endHours":26.20596736670886,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:12","end":"03:12","startHours":26.20596736670886,"endHours":27.20596736670886,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:12","end":"04:12","startHours":27.20596736670886,"endHours":28.20596736670886,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:12","end":"05:12","startHours":28.20596736670886,"endHours":29.20596736670886,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.22732502925382,"eotMinutes":-2.3467764445695645,"ayanamsa":23.9926}},"calendars":{"vikram_samvat":2066,"vikram_samvatsara":"Śubhakṛt","saka_samvat":1931,"saka_samvatsara":"Virodhi","bengali_samvat":1416,"malayalam_era":1185,"nanakshahi_year":540,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Dvādaśī · Vikram 2066 Śubhakṛt · Śaka 1931 Virodhi"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"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 29, 2009 CE · Perth, Australia · Vidhyamitra","description":"December 29, 2009 CE for Perth, Australia: Śukla Dvādaśī, sūryodaya 05:12, sūryāsta 19:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2009-12-29","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2009-12-29","sa":"https://sa.vidhyamitra.com/city/perth/2009-12-29","hi":"https://hi.vidhyamitra.com/city/perth/2009-12-29","x-default":"https://vidhyamitra.com/city/perth/2009-12-29"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T15:43:40.493Z","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":"2026-06-02T15:43:40.493Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T15:43:40.493Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}