{"id":"vidhyamitra:city-day:perth:2013-02-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2013-02-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2013-02-16","date_display":"February 16, 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":2,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456339.770833,"kali_year":5114,"ahargana":1867874.2708,"sun":{"sidereal_longitude":303.5606,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":13.4485,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":69.8879,"elapsed_within_tithi_degrees":9.8879},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":13.4485,"elapsed_within_degrees":0.1152},"yoga":{"number":24,"name":"Śukla","sum_longitude":317.0091},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456339.770833,"ahargana":1867874.2708,"kali_year":5114,"ayanamsa_lahiri":24.0364,"grahas":{"sun":{"sidereal_longitude":303.4873150000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":13.569414999999992,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false,"latitude":1.3582},"mars":{"sidereal_longitude":316.83351500000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":321.37911499999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":42.33111500000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":293.23691499999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":197.224015,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":211.0323,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":31.0323,"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":2,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456339.770833,"kali_year":5114,"ahargana":1867874.2708,"sun":{"sidereal_longitude":303.5606,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":13.4485,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":69.8879,"elapsed_within_tithi_degrees":9.8879},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":13.4485,"elapsed_within_degrees":0.1152},"yoga":{"number":24,"name":"Śukla","sum_longitude":317.0091},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.358,"elongation":69.888},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.358,"opposition_distance":110.112}},"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":"05:56","sunsetLocal":"19:07","solarNoonLocal":"12:31","dayLengthHours":13.180215960034673,"dayLengthDisplay":"13 Hours 10 Mins 49 Secs","nightLengthDisplay":"10 Hours 49 Mins 11 Secs","moonriseLocal":"11:44","moonsetLocal":"22:38","rahuKala":{"name":"Rāhu Kāla","start":"09:13","end":"10:52","startHours":9.223212820023935,"endHours":10.87073981502827,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:10","end":"15:49","startHours":14.165793805036937,"endHours":15.813320800041271,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:56","end":"07:35","startHours":5.928158830015266,"endHours":7.5756858250196,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:00","end":"09:27","startHours":9.003542554023356,"endHours":9.442883086024512,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:29","end":"06:50","startHours":6.477334495016711,"endHours":6.828806920617636,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:57","startHours":12.078926278031448,"endHours":12.957607342033759,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"05:03","startHours":4.170796702010643,"endHours":5.049477766012955,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:50","end":"05:56","startHours":4.829807500012377,"endHours":5.928158830015266,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:43","end":"15:36","startHours":14.71496947003838,"endHours":15.593650534040691,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:55","end":"19:19","startHours":18.90837479004994,"endHours":19.30837479004994,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:07","end":"19:39","startHours":19.10837479004994,"endHours":19.657550455051386,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:52","end":"20:37","startHours":18.85837479004994,"endHours":20.60837479004994,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:57","startHours":24.078926278031446,"endHours":24.95760734203376,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:56","end":"07:35","startHours":5.928158830015266,"endHours":7.5756858250196,"quality":"inauspicious"},{"name":"Śubha","start":"07:35","end":"09:13","startHours":7.5756858250196,"endHours":9.223212820023935,"quality":"auspicious"},{"name":"Roga","start":"09:13","end":"10:52","startHours":9.223212820023935,"endHours":10.87073981502827,"quality":"inauspicious"},{"name":"Udveg","start":"10:52","end":"12:31","startHours":10.87073981502827,"endHours":12.518266810032603,"quality":"inauspicious"},{"name":"Chala","start":"12:31","end":"14:10","startHours":12.518266810032603,"endHours":14.165793805036937,"quality":"neutral"},{"name":"Labha","start":"14:10","end":"15:49","startHours":14.165793805036937,"endHours":15.813320800041271,"quality":"auspicious"},{"name":"Amṛta","start":"15:49","end":"17:28","startHours":15.813320800041271,"endHours":17.460847795045606,"quality":"auspicious"},{"name":"Kāla","start":"17:28","end":"19:07","startHours":17.460847795045606,"endHours":19.10837479004994,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:07","end":"20:28","startHours":19.10837479004994,"endHours":20.460847795045606,"quality":"auspicious"},{"name":"Amṛta","start":"20:28","end":"21:49","startHours":20.460847795045606,"endHours":21.81332080004127,"quality":"auspicious"},{"name":"Kāla","start":"21:49","end":"23:10","startHours":21.81332080004127,"endHours":23.165793805036937,"quality":"inauspicious"},{"name":"Śubha","start":"23:10","end":"00:31","startHours":23.165793805036937,"endHours":24.518266810032603,"quality":"auspicious"},{"name":"Roga","start":"00:31","end":"01:52","startHours":24.518266810032603,"endHours":25.87073981502827,"quality":"inauspicious"},{"name":"Udveg","start":"01:52","end":"03:13","startHours":25.87073981502827,"endHours":27.223212820023935,"quality":"inauspicious"},{"name":"Chala","start":"03:13","end":"04:35","startHours":27.223212820023935,"endHours":28.5756858250196,"quality":"neutral"},{"name":"Labha","start":"04:35","end":"05:56","startHours":28.5756858250196,"endHours":29.928158830015267,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:56","end":"06:56","startHours":5.928158830015266,"endHours":6.928158830015266,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:56","end":"07:56","startHours":6.928158830015266,"endHours":7.928158830015266,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:56","end":"08:56","startHours":7.928158830015266,"endHours":8.928158830015267,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:56","end":"09:56","startHours":8.928158830015267,"endHours":9.928158830015267,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:56","end":"10:56","startHours":9.928158830015267,"endHours":10.928158830015267,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:56","end":"11:56","startHours":10.928158830015267,"endHours":11.928158830015267,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:56","end":"12:56","startHours":11.928158830015267,"endHours":12.928158830015267,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:56","end":"13:56","startHours":12.928158830015267,"endHours":13.928158830015267,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:56","end":"14:56","startHours":13.928158830015267,"endHours":14.928158830015267,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:56","end":"15:56","startHours":14.928158830015267,"endHours":15.928158830015267,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:56","end":"16:56","startHours":15.928158830015267,"endHours":16.928158830015267,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:56","end":"17:56","startHours":16.928158830015267,"endHours":17.928158830015267,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:56","end":"18:56","startHours":17.928158830015267,"endHours":18.928158830015267,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:56","end":"19:56","startHours":18.928158830015267,"endHours":19.928158830015267,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:56","end":"20:56","startHours":19.928158830015267,"endHours":20.928158830015267,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:56","end":"21:56","startHours":20.928158830015267,"endHours":21.928158830015267,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:56","end":"22:56","startHours":21.928158830015267,"endHours":22.928158830015267,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:56","end":"23:56","startHours":22.928158830015267,"endHours":23.928158830015267,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:56","end":"00:56","startHours":23.928158830015267,"endHours":24.928158830015267,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:56","end":"01:56","startHours":24.928158830015267,"endHours":25.928158830015267,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:56","end":"02:56","startHours":25.928158830015267,"endHours":26.928158830015267,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:56","end":"03:56","startHours":26.928158830015267,"endHours":27.928158830015267,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:56","end":"04:56","startHours":27.928158830015267,"endHours":28.928158830015267,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:56","end":"05:56","startHours":28.928158830015267,"endHours":29.928158830015267,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-12.33121393661672,"eotMinutes":-14.538008601956186,"ayanamsa":24.0364}},"calendars":{"vikram_samvat":2070,"vikram_samvatsara":"Parābhava","saka_samvat":1935,"saka_samvatsara":"Vijaya","bengali_samvat":1420,"malayalam_era":1189,"nanakshahi_year":544,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Ṣaṣṭhī · Vikram 2070 Parābhava · Śaka 1935 Vijaya"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 16, 2013 CE · Perth, Australia · Vidhyamitra","description":"February 16, 2013 CE for Perth, Australia: Śukla Ṣaṣṭhī, sūryodaya 05:56, sūryāsta 19:07.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2013-02-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2013-02-16","sa":"https://sa.vidhyamitra.com/city/perth/2013-02-16","hi":"https://hi.vidhyamitra.com/city/perth/2013-02-16","x-default":"https://vidhyamitra.com/city/perth/2013-02-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T07:04:09.497Z","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":"2026-06-03T07:04:09.497Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T07:04:09.497Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}