{"id":"vidhyamitra:city-day:perth:2013-01-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2013-01-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2013-01-07","date_display":"January 7, 2013 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":2013,"month":1,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456299.770833,"kali_year":5114,"ahargana":1867834.2708,"sun":{"sidereal_longitude":262.649,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":199.7586,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":297.1096,"elapsed_within_tithi_degrees":9.1096},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":199.7586,"elapsed_within_degrees":13.0919},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":102.4075},"karana":{"half_tithi_index":49,"name":"Viṣṭi"},"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":2013,"month":1,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456299.770833,"ahargana":1867834.2708,"kali_year":5114,"ayanamsa_lahiri":24.0349,"grahas":{"sun":{"sidereal_longitude":262.859243,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":196.99404300000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false,"latitude":-1.0413},"mars":{"sidereal_longitude":285.2648429999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":255.88244299999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":42.81184300000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":243.13384300000007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":195.68514300000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":213.1517,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":33.1517,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2013,"month":1,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456299.770833,"kali_year":5114,"ahargana":1867834.2708,"sun":{"sidereal_longitude":262.649,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":199.7586,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":297.1096,"elapsed_within_tithi_degrees":9.1096},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":199.7586,"elapsed_within_degrees":13.0919},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":102.4075},"karana":{"half_tithi_index":49,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.041,"elongation":62.89},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.041,"opposition_distance":117.11}},"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":"05:19","sunsetLocal":"19:27","solarNoonLocal":"12:23","dayLengthHours":14.129770395248983,"dayLengthDisplay":"14 Hours 07 Mins 47 Secs","nightLengthDisplay":"9 Hours 52 Mins 13 Secs","moonriseLocal":"01:18","moonsetLocal":"14:41","rahuKala":{"name":"Rāhu Kāla","start":"07:05","end":"08:51","startHours":7.082170673571958,"endHours":8.848391972978082,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:37","end":"12:23","startHours":10.614613272384204,"endHours":12.380834571790327,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:09","end":"15:55","startHours":14.14705587119645,"endHours":15.913277170602573,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:37","end":"09:05","startHours":8.612895799723931,"endHours":9.08388814623223,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:54","end":"06:17","startHours":5.904689807301209,"endHours":6.281483684507849,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:51","startHours":11.909842225282027,"endHours":12.851826918298627,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:26","end":"04:22","startHours":3.431979988132637,"endHours":4.3739646811492365,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:08","end":"05:19","startHours":4.1384685078950865,"endHours":5.315949374165835,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:41","startHours":14.735796304331824,"endHours":15.677780997348423,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:15","end":"19:39","startHours":19.24571976941482,"endHours":19.645719769414818,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:27","end":"20:02","startHours":19.44571976941482,"endHours":20.034460202550193,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:12","end":"20:57","startHours":19.19571976941482,"endHours":20.94571976941482,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:51","startHours":23.909842225282027,"endHours":24.851826918298627,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:19","end":"07:05","startHours":5.315949374165835,"endHours":7.082170673571958,"quality":"auspicious"},{"name":"Kāla","start":"07:05","end":"08:51","startHours":7.082170673571958,"endHours":8.848391972978082,"quality":"inauspicious"},{"name":"Śubha","start":"08:51","end":"10:37","startHours":8.848391972978082,"endHours":10.614613272384204,"quality":"auspicious"},{"name":"Roga","start":"10:37","end":"12:23","startHours":10.614613272384204,"endHours":12.380834571790327,"quality":"inauspicious"},{"name":"Udveg","start":"12:23","end":"14:09","startHours":12.380834571790327,"endHours":14.14705587119645,"quality":"inauspicious"},{"name":"Chala","start":"14:09","end":"15:55","startHours":14.14705587119645,"endHours":15.913277170602573,"quality":"neutral"},{"name":"Labha","start":"15:55","end":"17:41","startHours":15.913277170602573,"endHours":17.679498470008696,"quality":"auspicious"},{"name":"Amṛta","start":"17:41","end":"19:27","startHours":17.679498470008696,"endHours":19.44571976941482,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:27","end":"20:41","startHours":19.44571976941482,"endHours":20.679498470008696,"quality":"neutral"},{"name":"Labha","start":"20:41","end":"21:55","startHours":20.679498470008696,"endHours":21.913277170602573,"quality":"auspicious"},{"name":"Amṛta","start":"21:55","end":"23:09","startHours":21.913277170602573,"endHours":23.14705587119645,"quality":"auspicious"},{"name":"Kāla","start":"23:09","end":"00:23","startHours":23.14705587119645,"endHours":24.380834571790327,"quality":"inauspicious"},{"name":"Śubha","start":"00:23","end":"01:37","startHours":24.380834571790327,"endHours":25.614613272384204,"quality":"auspicious"},{"name":"Roga","start":"01:37","end":"02:51","startHours":25.614613272384204,"endHours":26.84839197297808,"quality":"inauspicious"},{"name":"Udveg","start":"02:51","end":"04:05","startHours":26.84839197297808,"endHours":28.08217067357196,"quality":"inauspicious"},{"name":"Chala","start":"04:05","end":"05:19","startHours":28.08217067357196,"endHours":29.315949374165836,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:19","end":"06:19","startHours":5.315949374165835,"endHours":6.315949374165835,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:19","end":"07:19","startHours":6.315949374165835,"endHours":7.315949374165835,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:19","end":"08:19","startHours":7.315949374165835,"endHours":8.315949374165836,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:19","end":"09:19","startHours":8.315949374165836,"endHours":9.315949374165836,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:19","end":"10:19","startHours":9.315949374165836,"endHours":10.315949374165836,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:19","end":"11:19","startHours":10.315949374165836,"endHours":11.315949374165836,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:19","end":"12:19","startHours":11.315949374165836,"endHours":12.315949374165836,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:19","end":"13:19","startHours":12.315949374165836,"endHours":13.315949374165836,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:19","end":"14:19","startHours":13.315949374165836,"endHours":14.315949374165836,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:19","end":"15:19","startHours":14.315949374165836,"endHours":15.315949374165836,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:19","end":"16:19","startHours":15.315949374165836,"endHours":16.315949374165836,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:19","end":"17:19","startHours":16.315949374165836,"endHours":17.315949374165836,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:19","end":"18:19","startHours":17.315949374165836,"endHours":18.315949374165836,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:19","end":"19:19","startHours":18.315949374165836,"endHours":19.315949374165836,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:19","end":"20:19","startHours":19.315949374165836,"endHours":20.315949374165836,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:19","end":"21:19","startHours":20.315949374165836,"endHours":21.315949374165836,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:19","end":"22:19","startHours":21.315949374165836,"endHours":22.315949374165836,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:19","end":"23:19","startHours":22.315949374165836,"endHours":23.315949374165836,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:19","end":"00:19","startHours":23.315949374165836,"endHours":24.315949374165836,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:19","end":"01:19","startHours":24.315949374165836,"endHours":25.315949374165836,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:19","end":"02:19","startHours":25.315949374165836,"endHours":26.315949374165836,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:19","end":"03:19","startHours":26.315949374165836,"endHours":27.315949374165836,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:19","end":"04:19","startHours":27.315949374165836,"endHours":28.315949374165836,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:19","end":"05:19","startHours":28.315949374165836,"endHours":29.315949374165836,"planetary_lord":"Venus"}],"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","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"North-East","anandadiYoga":{"name":"Siddhi","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":-22.36884795065913,"eotMinutes":-6.292074307419696,"ayanamsa":24.0349}},"calendars":{"vikram_samvat":2070,"vikram_samvatsara":"Parābhava","saka_samvat":1935,"saka_samvatsara":"Vijaya","bengali_samvat":1420,"malayalam_era":1189,"nanakshahi_year":544,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Daśamī · Vikram 2070 Parābhava · Śaka 1935 Vijaya"},"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}],"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 7, 2013 CE · Perth, Australia · Vidhyamitra","description":"January 7, 2013 CE for Perth, Australia: Kṛṣṇa Daśamī, sūryodaya 05:19, sūryāsta 19:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2013-01-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2013-01-07","sa":"https://sa.vidhyamitra.com/city/perth/2013-01-07","hi":"https://hi.vidhyamitra.com/city/perth/2013-01-07","x-default":"https://vidhyamitra.com/city/perth/2013-01-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T15:20:10.523Z","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":"2026-05-15T15:20:10.523Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T15:20:10.523Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}