{"id":"vidhyamitra:city-day:perth:2184-02-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2184-02-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2184-02-13","date_display":"February 13, 2184 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":2184,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2518792.770833,"kali_year":5285,"ahargana":1930327.2708,"sun":{"sidereal_longitude":297.2125,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":307.2431,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":10.0306,"elapsed_within_tithi_degrees":10.0306},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":307.2431,"elapsed_within_degrees":0.5764},"yoga":{"number":19,"name":"Parigha","sum_longitude":244.4555},"karana":{"half_tithi_index":1,"name":"Bava"},"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":2184,"month":2,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2518792.770833,"ahargana":1930327.2708,"kali_year":5285,"ayanamsa_lahiri":26.425,"grahas":{"sun":{"sidereal_longitude":297.5691509999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":309.650851,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false,"latitude":1.143},"mars":{"sidereal_longitude":288.88705099999993,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":311.431251,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":204.282151,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":278.25475099999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":120.82185099999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":141.9718,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":321.9718,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"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":2184,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2518792.770833,"kali_year":5285,"ahargana":1930327.2708,"sun":{"sidereal_longitude":297.2125,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":307.2431,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":10.0306,"elapsed_within_tithi_degrees":10.0306},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":307.2431,"elapsed_within_degrees":0.5764},"yoga":{"number":19,"name":"Parigha","sum_longitude":244.4555},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.143,"elongation":10.031},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.143,"opposition_distance":169.969}},"eclipse_window_40days":[{"offset_days":13,"type":"lunar","occurs":true,"moon_latitude":-1.027,"opposition_distance":2.326}]},"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":"05:53","sunsetLocal":"19:10","solarNoonLocal":"12:31","dayLengthHours":13.286456537250038,"dayLengthDisplay":"13 Hours 17 Mins 11 Secs","nightLengthDisplay":"10 Hours 42 Mins 49 Secs","moonriseLocal":"06:53","moonsetLocal":"19:46","rahuKala":{"name":"Rāhu Kāla","start":"10:52","end":"12:31","startHours":10.85848502052078,"endHours":12.519292087677034,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:50","end":"17:30","startHours":15.840906221989544,"endHours":17.501713289145798,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:32","end":"09:12","startHours":7.536870886208271,"endHours":9.197677953364526,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:59","end":"09:25","startHours":8.976237011077025,"endHours":9.419118895652026,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:26","end":"06:47","startHours":6.429666174770768,"endHours":6.783971682430769,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:58","startHours":12.076410203102032,"endHours":12.962173972252035,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:06","end":"04:59","startHours":4.1045362807520105,"endHours":4.990300049902014,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:46","end":"05:53","startHours":4.768859107614513,"endHours":5.876063819052016,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:37","startHours":14.733701510552041,"endHours":15.619465279702045,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:58","end":"19:22","startHours":18.962520356302054,"endHours":19.362520356302053,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:10","end":"19:43","startHours":19.162520356302053,"endHours":19.716122712020805,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:55","end":"20:40","startHours":18.912520356302053,"endHours":20.662520356302053,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:58","startHours":24.076410203102032,"endHours":24.962173972252035,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:53","end":"07:32","startHours":5.876063819052016,"endHours":7.536870886208271,"quality":"neutral"},{"name":"Labha","start":"07:32","end":"09:12","startHours":7.536870886208271,"endHours":9.197677953364526,"quality":"auspicious"},{"name":"Amṛta","start":"09:12","end":"10:52","startHours":9.197677953364526,"endHours":10.85848502052078,"quality":"auspicious"},{"name":"Kāla","start":"10:52","end":"12:31","startHours":10.85848502052078,"endHours":12.519292087677034,"quality":"inauspicious"},{"name":"Śubha","start":"12:31","end":"14:11","startHours":12.519292087677034,"endHours":14.18009915483329,"quality":"auspicious"},{"name":"Roga","start":"14:11","end":"15:50","startHours":14.18009915483329,"endHours":15.840906221989544,"quality":"inauspicious"},{"name":"Udveg","start":"15:50","end":"17:30","startHours":15.840906221989544,"endHours":17.501713289145798,"quality":"inauspicious"},{"name":"Chala","start":"17:30","end":"19:10","startHours":17.501713289145798,"endHours":19.162520356302053,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:10","end":"20:30","startHours":19.162520356302053,"endHours":20.501713289145798,"quality":"inauspicious"},{"name":"Udveg","start":"20:30","end":"21:50","startHours":20.501713289145798,"endHours":21.840906221989545,"quality":"inauspicious"},{"name":"Chala","start":"21:50","end":"23:11","startHours":21.840906221989545,"endHours":23.18009915483329,"quality":"neutral"},{"name":"Labha","start":"23:11","end":"00:31","startHours":23.18009915483329,"endHours":24.519292087677034,"quality":"auspicious"},{"name":"Amṛta","start":"00:31","end":"01:52","startHours":24.519292087677034,"endHours":25.85848502052078,"quality":"auspicious"},{"name":"Kāla","start":"01:52","end":"03:12","startHours":25.85848502052078,"endHours":27.197677953364526,"quality":"inauspicious"},{"name":"Śubha","start":"03:12","end":"04:32","startHours":27.197677953364526,"endHours":28.53687088620827,"quality":"auspicious"},{"name":"Roga","start":"04:32","end":"05:53","startHours":28.53687088620827,"endHours":29.876063819052014,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:53","end":"06:53","startHours":5.876063819052016,"endHours":6.876063819052016,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:53","end":"07:53","startHours":6.876063819052016,"endHours":7.876063819052016,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:53","end":"08:53","startHours":7.876063819052016,"endHours":8.876063819052016,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:53","end":"09:53","startHours":8.876063819052016,"endHours":9.876063819052016,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:53","end":"10:53","startHours":9.876063819052016,"endHours":10.876063819052016,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:53","end":"11:53","startHours":10.876063819052016,"endHours":11.876063819052016,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:53","end":"12:53","startHours":11.876063819052016,"endHours":12.876063819052016,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:53","end":"13:53","startHours":12.876063819052016,"endHours":13.876063819052016,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:53","end":"14:53","startHours":13.876063819052016,"endHours":14.876063819052016,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:53","end":"15:53","startHours":14.876063819052016,"endHours":15.876063819052016,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:53","end":"16:53","startHours":15.876063819052016,"endHours":16.876063819052014,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:53","end":"17:53","startHours":16.876063819052014,"endHours":17.876063819052014,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:53","end":"18:53","startHours":17.876063819052014,"endHours":18.876063819052014,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:53","end":"19:53","startHours":18.876063819052014,"endHours":19.876063819052014,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:53","end":"20:53","startHours":19.876063819052014,"endHours":20.876063819052014,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:53","end":"21:53","startHours":20.876063819052014,"endHours":21.876063819052014,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:53","end":"22:53","startHours":21.876063819052014,"endHours":22.876063819052014,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:53","end":"23:53","startHours":22.876063819052014,"endHours":23.876063819052014,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:53","end":"00:53","startHours":23.876063819052014,"endHours":24.876063819052014,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:53","end":"01:53","startHours":24.876063819052014,"endHours":25.876063819052014,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:53","end":"02:53","startHours":25.876063819052014,"endHours":26.876063819052014,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:53","end":"03:53","startHours":26.876063819052014,"endHours":27.876063819052014,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:53","end":"04:53","startHours":27.876063819052014,"endHours":28.876063819052014,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:53","end":"05:53","startHours":28.876063819052014,"endHours":29.876063819052014,"planetary_lord":"Mars"}],"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","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-13.521729622798867,"eotMinutes":-14.599525260622107,"ayanamsa":26.425}},"calendars":{"vikram_samvat":2241,"vikram_samvatsara":"Hemalambī","saka_samvat":2106,"saka_samvatsara":"Tāraṇa","bengali_samvat":1591,"malayalam_era":1360,"nanakshahi_year":715,"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":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Pratipada · Vikram 2241 Hemalambī · Śaka 2106 Tāraṇa"},"festivals":[{"id":"magha-gupta-navratri-start","name":"Māgha Gupta Navrātri Start","name_sanskrit":"माघ गुप्त नवरात्रि आरम्भ","tradition":"Shakta","associated_deity":"Devī (10 Mahāvidyās)","significance":"Hidden (gupta) Navrātri for advanced sādhanā of 10 Mahāvidyās.","vrata":true,"detection":{"tithi_number":1,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":3}],"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 13, 2184 CE · Perth, Australia · Vidhyamitra","description":"February 13, 2184 CE for Perth, Australia: Śukla Pratipada, sūryodaya 05:53, sūryāsta 19:10.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2184-02-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2184-02-13","sa":"https://sa.vidhyamitra.com/city/perth/2184-02-13","hi":"https://hi.vidhyamitra.com/city/perth/2184-02-13","x-default":"https://vidhyamitra.com/city/perth/2184-02-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T19:44:38.051Z","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":"2026-05-31T19:44:38.051Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T19:44:38.051Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}