{"id":"vidhyamitra:city-day:perth:2017-01-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2017-01-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2017-01-11","date_display":"January 11, 2017 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":2017,"month":1,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457764.770833,"kali_year":5118,"ahargana":1869299.2708,"sun":{"sidereal_longitude":266.7238,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":68.8757,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":162.1519,"elapsed_within_tithi_degrees":6.1519},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":68.8757,"elapsed_within_degrees":2.209},"yoga":{"number":26,"name":"Indra","sum_longitude":335.5996},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2017,"month":1,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457764.770833,"ahargana":1869299.2708,"kali_year":5118,"ayanamsa_lahiri":24.0909,"grahas":{"sun":{"sidereal_longitude":266.90936899999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":67.158769,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false,"latitude":-4.1309},"mars":{"sidereal_longitude":322.750669,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":244.86976900000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":177.48116900000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":313.780069,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":238.20926899999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":135.5289,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":315.5289,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"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":2017,"month":1,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457764.770833,"kali_year":5118,"ahargana":1869299.2708,"sun":{"sidereal_longitude":266.7238,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":68.8757,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":162.1519,"elapsed_within_tithi_degrees":6.1519},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":68.8757,"elapsed_within_degrees":2.209},"yoga":{"number":26,"name":"Indra","sum_longitude":335.5996},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.131,"elongation":162.152},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.131,"opposition_distance":17.848}},"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":"05:22","sunsetLocal":"19:27","solarNoonLocal":"12:24","dayLengthHours":14.071604709412703,"dayLengthDisplay":"14 Hours 04 Mins 18 Secs","nightLengthDisplay":"9 Hours 55 Mins 42 Secs","moonriseLocal":"18:05","moonsetLocal":"04:06","rahuKala":{"name":"Rāhu Kāla","start":"12:24","end":"14:10","startHours":12.407408370582775,"endHours":14.166358959259362,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:08","end":"08:53","startHours":7.130556604553011,"endHours":8.889507193229598,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:39","end":"12:24","startHours":10.648457781906187,"endHours":12.407408370582775,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:39","end":"09:07","startHours":8.65498044807272,"endHours":9.124033938386477,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:57","end":"06:20","startHours":5.957922878768619,"endHours":6.333165671019624,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:53","startHours":11.938354880269019,"endHours":12.876461860896532,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:30","end":"04:26","startHours":3.4953920546213957,"endHours":4.433499035248909,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:12","end":"05:22","startHours":4.198972290092031,"endHours":5.371606015876423,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:45","end":"15:41","startHours":14.75267582215156,"endHours":15.690782802779072,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:15","end":"19:39","startHours":19.243210725289128,"endHours":19.643210725289126,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:27","end":"20:02","startHours":19.443210725289127,"endHours":20.029527588181324,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:12","end":"20:57","startHours":19.193210725289127,"endHours":20.943210725289127,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:53","startHours":23.938354880269017,"endHours":24.876461860896534,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:22","end":"07:08","startHours":5.371606015876423,"endHours":7.130556604553011,"quality":"auspicious"},{"name":"Amṛta","start":"07:08","end":"08:53","startHours":7.130556604553011,"endHours":8.889507193229598,"quality":"auspicious"},{"name":"Kāla","start":"08:53","end":"10:39","startHours":8.889507193229598,"endHours":10.648457781906187,"quality":"inauspicious"},{"name":"Śubha","start":"10:39","end":"12:24","startHours":10.648457781906187,"endHours":12.407408370582775,"quality":"auspicious"},{"name":"Roga","start":"12:24","end":"14:10","startHours":12.407408370582775,"endHours":14.166358959259362,"quality":"inauspicious"},{"name":"Udveg","start":"14:10","end":"15:56","startHours":14.166358959259362,"endHours":15.92530954793595,"quality":"inauspicious"},{"name":"Chala","start":"15:56","end":"17:41","startHours":15.92530954793595,"endHours":17.68426013661254,"quality":"neutral"},{"name":"Labha","start":"17:41","end":"19:27","startHours":17.68426013661254,"endHours":19.443210725289127,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:27","end":"20:41","startHours":19.443210725289127,"endHours":20.68426013661254,"quality":"inauspicious"},{"name":"Chala","start":"20:41","end":"21:56","startHours":20.68426013661254,"endHours":21.925309547935953,"quality":"neutral"},{"name":"Labha","start":"21:56","end":"23:10","startHours":21.925309547935953,"endHours":23.166358959259362,"quality":"auspicious"},{"name":"Amṛta","start":"23:10","end":"00:24","startHours":23.166358959259362,"endHours":24.407408370582775,"quality":"auspicious"},{"name":"Kāla","start":"00:24","end":"01:39","startHours":24.407408370582775,"endHours":25.64845778190619,"quality":"inauspicious"},{"name":"Śubha","start":"01:39","end":"02:53","startHours":25.64845778190619,"endHours":26.889507193229598,"quality":"auspicious"},{"name":"Roga","start":"02:53","end":"04:08","startHours":26.889507193229598,"endHours":28.13055660455301,"quality":"inauspicious"},{"name":"Udveg","start":"04:08","end":"05:22","startHours":28.13055660455301,"endHours":29.371606015876424,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:22","end":"06:22","startHours":5.371606015876423,"endHours":6.371606015876423,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:22","end":"07:22","startHours":6.371606015876423,"endHours":7.371606015876423,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:22","end":"08:22","startHours":7.371606015876423,"endHours":8.371606015876424,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:22","end":"09:22","startHours":8.371606015876424,"endHours":9.371606015876424,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:22","end":"10:22","startHours":9.371606015876424,"endHours":10.371606015876424,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:22","end":"11:22","startHours":10.371606015876424,"endHours":11.371606015876424,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:22","end":"12:22","startHours":11.371606015876424,"endHours":12.371606015876424,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:22","end":"13:22","startHours":12.371606015876424,"endHours":13.371606015876424,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:22","end":"14:22","startHours":13.371606015876424,"endHours":14.371606015876424,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:22","end":"15:22","startHours":14.371606015876424,"endHours":15.371606015876424,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:22","end":"16:22","startHours":15.371606015876424,"endHours":16.371606015876424,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:22","end":"17:22","startHours":16.371606015876424,"endHours":17.371606015876424,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:22","end":"18:22","startHours":17.371606015876424,"endHours":18.371606015876424,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:22","end":"19:22","startHours":18.371606015876424,"endHours":19.371606015876424,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:22","end":"20:22","startHours":19.371606015876424,"endHours":20.371606015876424,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:22","end":"21:22","startHours":20.371606015876424,"endHours":21.371606015876424,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:22","end":"22:22","startHours":21.371606015876424,"endHours":22.371606015876424,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:22","end":"23:22","startHours":22.371606015876424,"endHours":23.371606015876424,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:22","end":"00:22","startHours":23.371606015876424,"endHours":24.371606015876424,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:22","end":"01:22","startHours":24.371606015876424,"endHours":25.371606015876424,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:22","end":"02:22","startHours":25.371606015876424,"endHours":26.371606015876424,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:22","end":"03:22","startHours":26.371606015876424,"endHours":27.371606015876424,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:22","end":"04:22","startHours":27.371606015876424,"endHours":28.371606015876424,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:22","end":"05:22","startHours":28.371606015876424,"endHours":29.371606015876424,"planetary_lord":"Sun"}],"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","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"South-West","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"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":-21.79671317720642,"eotMinutes":-7.886502234966622,"ayanamsa":24.0909}},"calendars":{"vikram_samvat":2074,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1939,"saka_samvatsara":"Hemalambī","bengali_samvat":1424,"malayalam_era":1193,"nanakshahi_year":548,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Caturdaśī · Vikram 2074 Sādhāraṇa · Śaka 1939 Hemalambī"},"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":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 11, 2017 CE · Perth, Australia · Vidhyamitra","description":"January 11, 2017 CE for Perth, Australia: Śukla Caturdaśī, sūryodaya 05:22, sūryāsta 19:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2017-01-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2017-01-11","sa":"https://sa.vidhyamitra.com/city/perth/2017-01-11","hi":"https://hi.vidhyamitra.com/city/perth/2017-01-11","x-default":"https://vidhyamitra.com/city/perth/2017-01-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T19:00:57.049Z","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":"2026-05-15T19:00:57.049Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T19:00:57.049Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}