{"id":"vidhyamitra:city-day:perth:2016-02-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2016-02-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2016-02-12","date_display":"February 12, 2016 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":2016,"month":2,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457430.770833,"kali_year":5117,"ahargana":1868965.2708,"sun":{"sidereal_longitude":298.7091,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":342.5364,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":43.8273,"elapsed_within_tithi_degrees":7.8273},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3,"moon_longitude":342.5364,"elapsed_within_degrees":9.2031},"yoga":{"number":22,"name":"Sādhya","sum_longitude":281.2456},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2016,"month":2,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457430.770833,"ahargana":1868965.2708,"kali_year":5117,"ayanamsa_lahiri":24.0781,"grahas":{"sun":{"sidereal_longitude":298.66713100000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":345.068231,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false,"latitude":-0.7273},"mars":{"sidereal_longitude":205.963431,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":273.35453099999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":146.57093099999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":269.3531310000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":230.64653099999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":153.2259,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":333.2259,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":2016,"month":2,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457430.770833,"kali_year":5117,"ahargana":1868965.2708,"sun":{"sidereal_longitude":298.7091,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":342.5364,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":43.8273,"elapsed_within_tithi_degrees":7.8273},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3,"moon_longitude":342.5364,"elapsed_within_degrees":9.2031},"yoga":{"number":22,"name":"Sādhya","sum_longitude":281.2456},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.727,"elongation":43.827},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.727,"opposition_distance":136.173}},"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":"05:51","sunsetLocal":"19:11","solarNoonLocal":"12:31","dayLengthHours":13.323388575043182,"dayLengthDisplay":"13 Hours 19 Mins 24 Secs","nightLengthDisplay":"10 Hours 40 Mins 36 Secs","moonriseLocal":"09:43","moonsetLocal":"21:30","rahuKala":{"name":"Rāhu Kāla","start":"10:51","end":"12:31","startHours":10.853788629701107,"endHours":12.519212201581507,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:51","end":"17:31","startHours":15.850059345342302,"endHours":17.5154829172227,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:31","end":"09:11","startHours":7.522941485940312,"endHours":9.188365057820711,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:58","end":"09:25","startHours":8.96630858156999,"endHours":9.41042153407143,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:25","end":"06:46","startHours":6.412659104686714,"endHours":6.767949466687866,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:58","startHours":12.075099249080067,"endHours":12.963325154082947,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:05","end":"04:58","startHours":4.081066104054157,"endHours":4.969292009057035,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:45","end":"05:51","startHours":4.747235532806316,"endHours":5.8575179140599145,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:38","startHours":14.739776964088701,"endHours":15.62800286909158,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:59","end":"19:23","startHours":18.9809064891031,"endHours":19.380906489103097,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:11","end":"19:44","startHours":19.180906489103098,"endHours":19.736047679729896,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:56","end":"20:41","startHours":18.930906489103098,"endHours":20.680906489103098,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:58","startHours":24.07509924908007,"endHours":24.963325154082945,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:51","end":"07:31","startHours":5.8575179140599145,"endHours":7.522941485940312,"quality":"neutral"},{"name":"Labha","start":"07:31","end":"09:11","startHours":7.522941485940312,"endHours":9.188365057820711,"quality":"auspicious"},{"name":"Amṛta","start":"09:11","end":"10:51","startHours":9.188365057820711,"endHours":10.853788629701107,"quality":"auspicious"},{"name":"Kāla","start":"10:51","end":"12:31","startHours":10.853788629701107,"endHours":12.519212201581507,"quality":"inauspicious"},{"name":"Śubha","start":"12:31","end":"14:11","startHours":12.519212201581507,"endHours":14.184635773461903,"quality":"auspicious"},{"name":"Roga","start":"14:11","end":"15:51","startHours":14.184635773461903,"endHours":15.850059345342302,"quality":"inauspicious"},{"name":"Udveg","start":"15:51","end":"17:31","startHours":15.850059345342302,"endHours":17.5154829172227,"quality":"inauspicious"},{"name":"Chala","start":"17:31","end":"19:11","startHours":17.5154829172227,"endHours":19.180906489103098,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:11","end":"20:31","startHours":19.180906489103098,"endHours":20.5154829172227,"quality":"inauspicious"},{"name":"Udveg","start":"20:31","end":"21:51","startHours":20.5154829172227,"endHours":21.850059345342302,"quality":"inauspicious"},{"name":"Chala","start":"21:51","end":"23:11","startHours":21.850059345342302,"endHours":23.184635773461906,"quality":"neutral"},{"name":"Labha","start":"23:11","end":"00:31","startHours":23.184635773461906,"endHours":24.519212201581507,"quality":"auspicious"},{"name":"Amṛta","start":"00:31","end":"01:51","startHours":24.519212201581507,"endHours":25.853788629701107,"quality":"auspicious"},{"name":"Kāla","start":"01:51","end":"03:11","startHours":25.853788629701107,"endHours":27.18836505782071,"quality":"inauspicious"},{"name":"Śubha","start":"03:11","end":"04:31","startHours":27.18836505782071,"endHours":28.522941485940315,"quality":"auspicious"},{"name":"Roga","start":"04:31","end":"05:51","startHours":28.522941485940315,"endHours":29.857517914059915,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:51","end":"06:51","startHours":5.8575179140599145,"endHours":6.8575179140599145,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:51","end":"07:51","startHours":6.8575179140599145,"endHours":7.8575179140599145,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:51","end":"08:51","startHours":7.8575179140599145,"endHours":8.857517914059915,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:51","end":"09:51","startHours":8.857517914059915,"endHours":9.857517914059915,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:51","end":"10:51","startHours":9.857517914059915,"endHours":10.857517914059915,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:51","end":"11:51","startHours":10.857517914059915,"endHours":11.857517914059915,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:51","end":"12:51","startHours":11.857517914059915,"endHours":12.857517914059915,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:51","end":"13:51","startHours":12.857517914059915,"endHours":13.857517914059915,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:51","end":"14:51","startHours":13.857517914059915,"endHours":14.857517914059915,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:51","end":"15:51","startHours":14.857517914059915,"endHours":15.857517914059915,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:51","end":"16:51","startHours":15.857517914059915,"endHours":16.857517914059915,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:51","end":"17:51","startHours":16.857517914059915,"endHours":17.857517914059915,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:51","end":"18:51","startHours":17.857517914059915,"endHours":18.857517914059915,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:51","end":"19:51","startHours":18.857517914059915,"endHours":19.857517914059915,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:51","end":"20:51","startHours":19.857517914059915,"endHours":20.857517914059915,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:51","end":"21:51","startHours":20.857517914059915,"endHours":21.857517914059915,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:51","end":"22:51","startHours":21.857517914059915,"endHours":22.857517914059915,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:51","end":"23:51","startHours":22.857517914059915,"endHours":23.857517914059915,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:51","end":"00:51","startHours":23.857517914059915,"endHours":24.857517914059915,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:51","end":"01:51","startHours":24.857517914059915,"endHours":25.857517914059915,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:51","end":"02:51","startHours":25.857517914059915,"endHours":26.857517914059915,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:51","end":"03:51","startHours":26.857517914059915,"endHours":27.857517914059915,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:51","end":"04:51","startHours":27.857517914059915,"endHours":28.857517914059915,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:51","end":"05:51","startHours":28.857517914059915,"endHours":29.857517914059915,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"South-East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-13.932074569412926,"eotMinutes":-14.594732094890398,"ayanamsa":24.0781}},"calendars":{"vikram_samvat":2073,"vikram_samvatsara":"Saumya","saka_samvat":1938,"saka_samvatsara":"Durmukhi","bengali_samvat":1423,"malayalam_era":1192,"nanakshahi_year":547,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Caturthī · Vikram 2073 Saumya · Śaka 1938 Durmukhi"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2},{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 February 12, 2016 CE · Perth, Australia · Vidhyamitra","description":"February 12, 2016 CE for Perth, Australia: Śukla Caturthī, sūryodaya 05:51, sūryāsta 19:11.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2016-02-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2016-02-12","sa":"https://sa.vidhyamitra.com/city/perth/2016-02-12","hi":"https://hi.vidhyamitra.com/city/perth/2016-02-12","x-default":"https://vidhyamitra.com/city/perth/2016-02-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T10:21:38.728Z","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":"2026-05-15T10:21:38.728Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T10:21:38.728Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}