{"id":"vidhyamitra:city-day:perth:2009-01-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2009-01-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2009-01-13","date_display":"January 13, 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":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2454844.770833,"kali_year":5110,"ahargana":1866379.2708,"sun":{"sidereal_longitude":268.8505,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":114.3217,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":205.4712,"elapsed_within_tithi_degrees":1.4712},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":114.3217,"elapsed_within_degrees":7.6551},"yoga":{"number":2,"name":"Prīti","sum_longitude":23.1722},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"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":1,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2454844.770833,"ahargana":1866379.2708,"kali_year":5110,"ayanamsa_lahiri":23.9792,"grahas":{"sun":{"sidereal_longitude":268.99943499999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":115.439235,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false,"latitude":-0.3196},"mars":{"sidereal_longitude":258.540835,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":283.527335,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":278.22853499999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":315.9642349999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":147.443035,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":290.2446,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":110.2446,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"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":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2454844.770833,"kali_year":5110,"ahargana":1866379.2708,"sun":{"sidereal_longitude":268.8505,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":114.3217,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":205.4712,"elapsed_within_tithi_degrees":1.4712},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":114.3217,"elapsed_within_degrees":7.6551},"yoga":{"number":2,"name":"Prīti","sum_longitude":23.1722},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.32,"elongation":154.529},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.32,"opposition_distance":25.471}},"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":"05:24","sunsetLocal":"19:26","solarNoonLocal":"12:25","dayLengthHours":14.039641453502593,"dayLengthDisplay":"14 Hours 02 Mins 23 Secs","nightLengthDisplay":"9 Hours 57 Mins 37 Secs","moonriseLocal":"20:47","moonsetLocal":"07:35","rahuKala":{"name":"Rāhu Kāla","start":"15:56","end":"17:41","startHours":15.929809221565208,"endHours":17.68476440325303,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:55","end":"10:40","startHours":8.909988494813911,"endHours":10.664943676501736,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:25","end":"14:10","startHours":12.419898858189558,"endHours":14.174854039877385,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:41","end":"09:09","startHours":8.675994470588869,"endHours":9.143982519038953,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:59","end":"06:22","startHours":5.985063192000871,"endHours":6.35945363076094,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:53","startHours":11.951910809739474,"endHours":12.887886906639647,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:32","end":"04:28","startHours":3.528125937637917,"endHours":4.46410203453809,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:14","end":"05:24","startHours":4.230108010313046,"endHours":5.400078131438263,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:46","end":"15:42","startHours":14.759839100439994,"endHours":15.695815197340167,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:14","end":"19:38","startHours":19.239719584940858,"endHours":19.639719584940856,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:26","end":"20:01","startHours":19.439719584940857,"endHours":20.024704645503466,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:11","end":"20:56","startHours":19.189719584940857,"endHours":20.939719584940857,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:53","startHours":23.951910809739477,"endHours":24.887886906639647,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:24","end":"07:09","startHours":5.400078131438263,"endHours":7.155033313126086,"quality":"inauspicious"},{"name":"Udveg","start":"07:09","end":"08:55","startHours":7.155033313126086,"endHours":8.909988494813911,"quality":"inauspicious"},{"name":"Chala","start":"08:55","end":"10:40","startHours":8.909988494813911,"endHours":10.664943676501736,"quality":"neutral"},{"name":"Labha","start":"10:40","end":"12:25","startHours":10.664943676501736,"endHours":12.419898858189558,"quality":"auspicious"},{"name":"Amṛta","start":"12:25","end":"14:10","startHours":12.419898858189558,"endHours":14.174854039877385,"quality":"auspicious"},{"name":"Kāla","start":"14:10","end":"15:56","startHours":14.174854039877385,"endHours":15.929809221565208,"quality":"inauspicious"},{"name":"Śubha","start":"15:56","end":"17:41","startHours":15.929809221565208,"endHours":17.68476440325303,"quality":"auspicious"},{"name":"Roga","start":"17:41","end":"19:26","startHours":17.68476440325303,"endHours":19.439719584940857,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:26","end":"20:41","startHours":19.439719584940857,"endHours":20.684764403253034,"quality":"inauspicious"},{"name":"Śubha","start":"20:41","end":"21:56","startHours":20.684764403253034,"endHours":21.929809221565208,"quality":"auspicious"},{"name":"Roga","start":"21:56","end":"23:10","startHours":21.929809221565208,"endHours":23.174854039877385,"quality":"inauspicious"},{"name":"Udveg","start":"23:10","end":"00:25","startHours":23.174854039877385,"endHours":24.419898858189562,"quality":"inauspicious"},{"name":"Chala","start":"00:25","end":"01:40","startHours":24.419898858189562,"endHours":25.664943676501736,"quality":"neutral"},{"name":"Labha","start":"01:40","end":"02:55","startHours":25.664943676501736,"endHours":26.909988494813913,"quality":"auspicious"},{"name":"Amṛta","start":"02:55","end":"04:09","startHours":26.909988494813913,"endHours":28.15503331312609,"quality":"auspicious"},{"name":"Kāla","start":"04:09","end":"05:24","startHours":28.15503331312609,"endHours":29.400078131438264,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:24","end":"06:24","startHours":5.400078131438263,"endHours":6.400078131438263,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:24","end":"07:24","startHours":6.400078131438263,"endHours":7.400078131438263,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:24","end":"08:24","startHours":7.400078131438263,"endHours":8.400078131438264,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:24","end":"09:24","startHours":8.400078131438264,"endHours":9.400078131438264,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:24","end":"10:24","startHours":9.400078131438264,"endHours":10.400078131438264,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:24","end":"11:24","startHours":10.400078131438264,"endHours":11.400078131438264,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:24","end":"12:24","startHours":11.400078131438264,"endHours":12.400078131438264,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:24","end":"13:24","startHours":12.400078131438264,"endHours":13.400078131438264,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:24","end":"14:24","startHours":13.400078131438264,"endHours":14.400078131438264,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:24","end":"15:24","startHours":14.400078131438264,"endHours":15.400078131438264,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:24","end":"16:24","startHours":15.400078131438264,"endHours":16.400078131438264,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:24","end":"17:24","startHours":16.400078131438264,"endHours":17.400078131438264,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:24","end":"18:24","startHours":17.400078131438264,"endHours":18.400078131438264,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:24","end":"19:24","startHours":18.400078131438264,"endHours":19.400078131438264,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:24","end":"20:24","startHours":19.400078131438264,"endHours":20.400078131438264,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:24","end":"21:24","startHours":20.400078131438264,"endHours":21.400078131438264,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:24","end":"22:24","startHours":21.400078131438264,"endHours":22.400078131438264,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:24","end":"23:24","startHours":22.400078131438264,"endHours":23.400078131438264,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:24","end":"00:24","startHours":23.400078131438264,"endHours":24.400078131438264,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:24","end":"01:24","startHours":24.400078131438264,"endHours":25.400078131438264,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:24","end":"02:24","startHours":25.400078131438264,"endHours":26.400078131438264,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:24","end":"03:24","startHours":26.400078131438264,"endHours":27.400078131438264,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:24","end":"04:24","startHours":27.400078131438264,"endHours":28.400078131438264,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:24","end":"05:24","startHours":28.400078131438264,"endHours":29.400078131438264,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Mṛtyu","quality":"Inauspicious"},"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":-21.47976340703908,"eotMinutes":-8.635931491373626,"ayanamsa":23.9792}},"calendars":{"vikram_samvat":2066,"vikram_samvatsara":"Śubhakṛt","saka_samvat":1931,"saka_samvatsara":"Virodhi","bengali_samvat":1416,"malayalam_era":1185,"nanakshahi_year":540,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","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":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Tṛtīyā · Vikram 2066 Śubhakṛt · Śaka 1931 Virodhi"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi_eve_of_ingress":"Makara"},"precedence":4}],"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":[]},"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 January 13, 2009 CE · Perth, Australia · Vidhyamitra","description":"January 13, 2009 CE for Perth, Australia: Kṛṣṇa Tṛtīyā, sūryodaya 05:24, sūryāsta 19:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2009-01-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2009-01-13","sa":"https://sa.vidhyamitra.com/city/perth/2009-01-13","hi":"https://hi.vidhyamitra.com/city/perth/2009-01-13","x-default":"https://vidhyamitra.com/city/perth/2009-01-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T01:02:50.576Z","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":"2026-06-01T01:02:50.576Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T01:02:50.576Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}