{"id":"vidhyamitra:city-day:perth:2013-01-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2013-01-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2013-01-06","date_display":"January 6, 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":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456298.770833,"kali_year":5114,"ahargana":1867833.2708,"sun":{"sidereal_longitude":261.621,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":185.8128,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":284.1918,"elapsed_within_tithi_degrees":8.1918},"nakshatra":{"number":14,"name":"Citrā","pada":4,"moon_longitude":185.8128,"elapsed_within_degrees":12.4795},"yoga":{"number":7,"name":"Sukarma","sum_longitude":87.4338},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456298.770833,"ahargana":1867833.2708,"kali_year":5114,"ayanamsa_lahiri":24.0348,"grahas":{"sun":{"sidereal_longitude":261.84008100000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":182.96358099999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false,"latitude":-2.0687},"mars":{"sidereal_longitude":284.4776810000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":254.30168100000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":42.891080999999986,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":241.88128099999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":195.61488099999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":213.2047,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":33.2047,"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":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456298.770833,"kali_year":5114,"ahargana":1867833.2708,"sun":{"sidereal_longitude":261.621,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":185.8128,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":284.1918,"elapsed_within_tithi_degrees":8.1918},"nakshatra":{"number":14,"name":"Citrā","pada":4,"moon_longitude":185.8128,"elapsed_within_degrees":12.4795},"yoga":{"number":7,"name":"Sukarma","sum_longitude":87.4338},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.069,"elongation":75.808},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.069,"opposition_distance":104.192}},"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":"05:18","sunsetLocal":"19:27","solarNoonLocal":"12:22","dayLengthHours":14.142428669560859,"dayLengthDisplay":"14 Hours 08 Mins 33 Secs","nightLengthDisplay":"9 Hours 51 Mins 27 Secs","moonriseLocal":"00:38","moonsetLocal":"13:36","rahuKala":{"name":"Rāhu Kāla","start":"17:41","end":"19:27","startHours":17.677304436201553,"endHours":19.445108019896658,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:22","end":"14:09","startHours":12.37389368511623,"endHours":14.141697268811336,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:55","end":"17:41","startHours":15.909500852506444,"endHours":17.677304436201553,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:36","end":"09:04","startHours":8.602579373233333,"endHours":9.073993662218694,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:54","end":"06:16","startHours":5.891947211567501,"endHours":6.269078642755791,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:51","startHours":11.902479396130868,"endHours":12.84530797410159,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:25","end":"04:22","startHours":3.417022194394351,"endHours":4.359850772365075,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:07","end":"05:18","startHours":4.124143627872394,"endHours":5.302679350335799,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:40","startHours":14.730965130043039,"endHours":15.673793708013763,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:15","end":"19:39","startHours":19.24510801989666,"endHours":19.645108019896657,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:27","end":"20:02","startHours":19.445108019896658,"endHours":20.034375881128362,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:12","end":"20:57","startHours":19.195108019896658,"endHours":20.945108019896658,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:51","startHours":23.902479396130868,"endHours":24.84530797410159,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:18","end":"07:04","startHours":5.302679350335799,"endHours":7.070482934030906,"quality":"inauspicious"},{"name":"Chala","start":"07:04","end":"08:50","startHours":7.070482934030906,"endHours":8.838286517726013,"quality":"neutral"},{"name":"Labha","start":"08:50","end":"10:36","startHours":8.838286517726013,"endHours":10.60609010142112,"quality":"auspicious"},{"name":"Amṛta","start":"10:36","end":"12:22","startHours":10.60609010142112,"endHours":12.37389368511623,"quality":"auspicious"},{"name":"Kāla","start":"12:22","end":"14:09","startHours":12.37389368511623,"endHours":14.141697268811336,"quality":"inauspicious"},{"name":"Śubha","start":"14:09","end":"15:55","startHours":14.141697268811336,"endHours":15.909500852506444,"quality":"auspicious"},{"name":"Roga","start":"15:55","end":"17:41","startHours":15.909500852506444,"endHours":17.677304436201553,"quality":"inauspicious"},{"name":"Udveg","start":"17:41","end":"19:27","startHours":17.677304436201553,"endHours":19.445108019896658,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:27","end":"20:41","startHours":19.445108019896658,"endHours":20.67730443620155,"quality":"auspicious"},{"name":"Roga","start":"20:41","end":"21:55","startHours":20.67730443620155,"endHours":21.909500852506444,"quality":"inauspicious"},{"name":"Udveg","start":"21:55","end":"23:09","startHours":21.909500852506444,"endHours":23.141697268811335,"quality":"inauspicious"},{"name":"Chala","start":"23:09","end":"00:22","startHours":23.141697268811335,"endHours":24.37389368511623,"quality":"neutral"},{"name":"Labha","start":"00:22","end":"01:36","startHours":24.37389368511623,"endHours":25.60609010142112,"quality":"auspicious"},{"name":"Amṛta","start":"01:36","end":"02:50","startHours":25.60609010142112,"endHours":26.83828651772601,"quality":"auspicious"},{"name":"Kāla","start":"02:50","end":"04:04","startHours":26.83828651772601,"endHours":28.070482934030906,"quality":"inauspicious"},{"name":"Śubha","start":"04:04","end":"05:18","startHours":28.070482934030906,"endHours":29.3026793503358,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:18","end":"06:18","startHours":5.302679350335799,"endHours":6.302679350335799,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:18","end":"07:18","startHours":6.302679350335799,"endHours":7.302679350335799,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:18","end":"08:18","startHours":7.302679350335799,"endHours":8.302679350335799,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:18","end":"09:18","startHours":8.302679350335799,"endHours":9.302679350335799,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:18","end":"10:18","startHours":9.302679350335799,"endHours":10.302679350335799,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:18","end":"11:18","startHours":10.302679350335799,"endHours":11.302679350335799,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:18","end":"12:18","startHours":11.302679350335799,"endHours":12.302679350335799,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:18","end":"13:18","startHours":12.302679350335799,"endHours":13.302679350335799,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:18","end":"14:18","startHours":13.302679350335799,"endHours":14.302679350335799,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:18","end":"15:18","startHours":14.302679350335799,"endHours":15.302679350335799,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:18","end":"16:18","startHours":15.302679350335799,"endHours":16.3026793503358,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:18","end":"17:18","startHours":16.3026793503358,"endHours":17.3026793503358,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:18","end":"18:18","startHours":17.3026793503358,"endHours":18.3026793503358,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:18","end":"19:18","startHours":18.3026793503358,"endHours":19.3026793503358,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:18","end":"20:18","startHours":19.3026793503358,"endHours":20.3026793503358,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:18","end":"21:18","startHours":20.3026793503358,"endHours":21.3026793503358,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:18","end":"22:18","startHours":21.3026793503358,"endHours":22.3026793503358,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:18","end":"23:18","startHours":22.3026793503358,"endHours":23.3026793503358,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:18","end":"00:18","startHours":23.3026793503358,"endHours":24.3026793503358,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:18","end":"01:18","startHours":24.3026793503358,"endHours":25.3026793503358,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:18","end":"02:18","startHours":25.3026793503358,"endHours":26.3026793503358,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:18","end":"03:18","startHours":26.3026793503358,"endHours":27.3026793503358,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:18","end":"04:18","startHours":27.3026793503358,"endHours":28.3026793503358,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:18","end":"05:18","startHours":28.3026793503358,"endHours":29.3026793503358,"planetary_lord":"Jupiter"}],"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":"West (Paścim)","chandraVasa":"North","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":-22.49256064323114,"eotMinutes":-5.875621106973772,"ayanamsa":24.0348}},"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 Navamī · 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":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 6, 2013 CE · Perth, Australia · Vidhyamitra","description":"January 6, 2013 CE for Perth, Australia: Kṛṣṇa Navamī, sūryodaya 05:18, sūryāsta 19:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2013-01-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2013-01-06","sa":"https://sa.vidhyamitra.com/city/perth/2013-01-06","hi":"https://hi.vidhyamitra.com/city/perth/2013-01-06","x-default":"https://vidhyamitra.com/city/perth/2013-01-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T15:22:07.520Z","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":"2026-05-15T15:22:07.520Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T15:22:07.520Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}