{"id":"vidhyamitra:city-day:perth:2010-01-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2010-01-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2010-01-04","date_display":"January 4, 2010 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":2010,"month":1,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455200.770833,"kali_year":5111,"ahargana":1866735.2708,"sun":{"sidereal_longitude":259.3349,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":121.6143,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":222.2794,"elapsed_within_tithi_degrees":6.2794},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":121.6143,"elapsed_within_degrees":1.6143},"yoga":{"number":2,"name":"Prīti","sum_longitude":20.9492},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2010,"month":1,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455200.770833,"ahargana":1866735.2708,"kali_year":5111,"ayanamsa_lahiri":23.9928,"grahas":{"sun":{"sidereal_longitude":259.566233,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":124.93953299999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false,"latitude":-2.264},"mars":{"sidereal_longitude":114.14633300000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":261.192133,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":303.24723300000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":257.56653299999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":160.34313299999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":271.382,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":91.382,"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":2010,"month":1,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455200.770833,"kali_year":5111,"ahargana":1866735.2708,"sun":{"sidereal_longitude":259.3349,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":121.6143,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":222.2794,"elapsed_within_tithi_degrees":6.2794},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":121.6143,"elapsed_within_degrees":1.6143},"yoga":{"number":2,"name":"Prīti","sum_longitude":20.9492},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.264,"elongation":137.721},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.264,"opposition_distance":42.279}},"eclipse_window_40days":[{"offset_days":-3,"type":"lunar","occurs":true,"moon_latitude":1.039,"opposition_distance":1.922},{"offset_days":11,"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":"05:17","sunsetLocal":"19:27","solarNoonLocal":"12:22","dayLengthHours":14.168456717777557,"dayLengthDisplay":"14 Hours 10 Mins 06 Secs","nightLengthDisplay":"9 Hours 49 Mins 54 Secs","moonriseLocal":"21:50","moonsetLocal":"08:56","rahuKala":{"name":"Rāhu Kāla","start":"07:03","end":"08:49","startHours":7.046527178589185,"endHours":8.81758426831138,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:35","end":"12:22","startHours":10.588641358033573,"endHours":12.359698447755768,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:08","end":"15:54","startHours":14.130755537477963,"endHours":15.901812627200158,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:35","end":"09:03","startHours":8.581443323015087,"endHours":9.053725213607672,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:52","end":"06:15","startHours":5.8658224521077225,"endHours":6.243647964581791,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:50","startHours":11.887416557163183,"endHours":12.831980338348353,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:23","end":"04:20","startHours":3.38634252649665,"endHours":4.33090630768182,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:06","end":"05:17","startHours":4.094765362385528,"endHours":5.2754700888669905,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:43","end":"15:40","startHours":14.721107900718696,"endHours":15.665671681903866,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:15","end":"19:39","startHours":19.24392680664455,"endHours":19.643926806644547,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:27","end":"20:02","startHours":19.443926806644548,"endHours":20.03427916988528,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:12","end":"20:57","startHours":19.193926806644548,"endHours":20.943926806644548,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:50","startHours":23.88741655716318,"endHours":24.831980338348355,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:17","end":"07:03","startHours":5.2754700888669905,"endHours":7.046527178589185,"quality":"auspicious"},{"name":"Kāla","start":"07:03","end":"08:49","startHours":7.046527178589185,"endHours":8.81758426831138,"quality":"inauspicious"},{"name":"Śubha","start":"08:49","end":"10:35","startHours":8.81758426831138,"endHours":10.588641358033573,"quality":"auspicious"},{"name":"Roga","start":"10:35","end":"12:22","startHours":10.588641358033573,"endHours":12.359698447755768,"quality":"inauspicious"},{"name":"Udveg","start":"12:22","end":"14:08","startHours":12.359698447755768,"endHours":14.130755537477963,"quality":"inauspicious"},{"name":"Chala","start":"14:08","end":"15:54","startHours":14.130755537477963,"endHours":15.901812627200158,"quality":"neutral"},{"name":"Labha","start":"15:54","end":"17:40","startHours":15.901812627200158,"endHours":17.672869716922353,"quality":"auspicious"},{"name":"Amṛta","start":"17:40","end":"19:27","startHours":17.672869716922353,"endHours":19.443926806644548,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:27","end":"20:40","startHours":19.443926806644548,"endHours":20.672869716922353,"quality":"neutral"},{"name":"Labha","start":"20:40","end":"21:54","startHours":20.672869716922353,"endHours":21.901812627200158,"quality":"auspicious"},{"name":"Amṛta","start":"21:54","end":"23:08","startHours":21.901812627200158,"endHours":23.130755537477963,"quality":"auspicious"},{"name":"Kāla","start":"23:08","end":"00:22","startHours":23.130755537477963,"endHours":24.35969844775577,"quality":"inauspicious"},{"name":"Śubha","start":"00:22","end":"01:35","startHours":24.35969844775577,"endHours":25.588641358033573,"quality":"auspicious"},{"name":"Roga","start":"01:35","end":"02:49","startHours":25.588641358033573,"endHours":26.81758426831138,"quality":"inauspicious"},{"name":"Udveg","start":"02:49","end":"04:03","startHours":26.81758426831138,"endHours":28.046527178589187,"quality":"inauspicious"},{"name":"Chala","start":"04:03","end":"05:17","startHours":28.046527178589187,"endHours":29.27547008886699,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:17","end":"06:17","startHours":5.2754700888669905,"endHours":6.2754700888669905,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:17","end":"07:17","startHours":6.2754700888669905,"endHours":7.2754700888669905,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:17","end":"08:17","startHours":7.2754700888669905,"endHours":8.27547008886699,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:17","end":"09:17","startHours":8.27547008886699,"endHours":9.27547008886699,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:17","end":"10:17","startHours":9.27547008886699,"endHours":10.27547008886699,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:17","end":"11:17","startHours":10.27547008886699,"endHours":11.27547008886699,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:17","end":"12:17","startHours":11.27547008886699,"endHours":12.27547008886699,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:17","end":"13:17","startHours":12.27547008886699,"endHours":13.27547008886699,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:17","end":"14:17","startHours":13.27547008886699,"endHours":14.27547008886699,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:17","end":"15:17","startHours":14.27547008886699,"endHours":15.27547008886699,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:17","end":"16:17","startHours":15.27547008886699,"endHours":16.27547008886699,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:17","end":"17:17","startHours":16.27547008886699,"endHours":17.27547008886699,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:17","end":"18:17","startHours":17.27547008886699,"endHours":18.27547008886699,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:17","end":"19:17","startHours":18.27547008886699,"endHours":19.27547008886699,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:17","end":"20:17","startHours":19.27547008886699,"endHours":20.27547008886699,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:17","end":"21:17","startHours":20.27547008886699,"endHours":21.27547008886699,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:17","end":"22:17","startHours":21.27547008886699,"endHours":22.27547008886699,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:17","end":"23:17","startHours":22.27547008886699,"endHours":23.27547008886699,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:17","end":"00:17","startHours":23.27547008886699,"endHours":24.27547008886699,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:17","end":"01:17","startHours":24.27547008886699,"endHours":25.27547008886699,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:17","end":"02:17","startHours":25.27547008886699,"endHours":26.27547008886699,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:17","end":"03:17","startHours":26.27547008886699,"endHours":27.27547008886699,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:17","end":"04:17","startHours":27.27547008886699,"endHours":28.27547008886699,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:17","end":"05:17","startHours":28.27547008886699,"endHours":29.27547008886699,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-22.746039353442658,"eotMinutes":-5.02390686534617,"ayanamsa":23.9928}},"calendars":{"vikram_samvat":2067,"vikram_samvatsara":"Śobhana","saka_samvat":1932,"saka_samvatsara":"Vikṛti","bengali_samvat":1417,"malayalam_era":1186,"nanakshahi_year":541,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Caturthī · Vikram 2067 Śobhana · Śaka 1932 Vikṛti"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 4, 2010 CE · Perth, Australia · Vidhyamitra","description":"January 4, 2010 CE for Perth, Australia: Kṛṣṇa Caturthī, sūryodaya 05:17, sūryāsta 19:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2010-01-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2010-01-04","sa":"https://sa.vidhyamitra.com/city/perth/2010-01-04","hi":"https://hi.vidhyamitra.com/city/perth/2010-01-04","x-default":"https://vidhyamitra.com/city/perth/2010-01-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T20:05:34.135Z","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":"2026-05-15T20:05:34.135Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T20:05:34.135Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}