{"id":"vidhyamitra:city-day:perth:2159-02-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2159-02-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2159-02-20","date_display":"February 20, 2159 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":2159,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2509668.770833,"kali_year":5260,"ahargana":1921203.2708,"sun":{"sidereal_longitude":304.7994,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":325.5293,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":20.7299,"elapsed_within_tithi_degrees":8.7299},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2,"moon_longitude":325.5293,"elapsed_within_degrees":5.5293},"yoga":{"number":21,"name":"Siddha","sum_longitude":270.3287},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2159,"month":2,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2509668.770833,"ahargana":1921203.2708,"kali_year":5260,"ayanamsa_lahiri":26.076,"grahas":{"sun":{"sidereal_longitude":305.05955500000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":325.9035550000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false,"latitude":3.901},"mars":{"sidereal_longitude":217.35965499999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":287.224155,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":165.74925499999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"venus":{"sidereal_longitude":340.277155,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":180.75165500000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":265.4052,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":85.4052,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":2159,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2509668.770833,"kali_year":5260,"ahargana":1921203.2708,"sun":{"sidereal_longitude":304.7994,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":325.5293,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":20.7299,"elapsed_within_tithi_degrees":8.7299},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2,"moon_longitude":325.5293,"elapsed_within_degrees":5.5293},"yoga":{"number":21,"name":"Siddha","sum_longitude":270.3287},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.901,"elongation":20.73},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.901,"opposition_distance":159.27}},"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":"05:59","sunsetLocal":"19:03","solarNoonLocal":"12:31","dayLengthHours":13.068985677981457,"dayLengthDisplay":"13 Hours 04 Mins 08 Secs","nightLengthDisplay":"10 Hours 55 Mins 52 Secs","moonriseLocal":"07:44","moonsetLocal":"20:05","rahuKala":{"name":"Rāhu Kāla","start":"15:47","end":"17:25","startHours":15.781268836907401,"endHours":17.414892046655083,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:15","end":"10:53","startHours":9.246775997916673,"endHours":10.880399207664354,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:31","end":"14:09","startHours":12.514022417412036,"endHours":14.147645627159719,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:02","end":"09:28","startHours":9.028959569950315,"endHours":9.46459242588303,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:31","end":"06:52","startHours":6.524070648337203,"endHours":6.872576933083375,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:57","startHours":12.078389561479321,"endHours":12.949655273344751,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:14","end":"05:06","startHours":4.236998154690448,"endHours":5.108263866555878,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:53","end":"05:59","startHours":4.89044743858952,"endHours":5.9795295784213085,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:42","end":"15:34","startHours":14.692186697075613,"endHours":15.563452408941043,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:51","end":"19:15","startHours":18.848515256402766,"endHours":19.248515256402765,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:03","end":"19:36","startHours":19.048515256402766,"endHours":19.59305632631866,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:48","end":"20:33","startHours":18.798515256402766,"endHours":20.548515256402766,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:57","startHours":24.07838956147932,"endHours":24.949655273344753,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:59","end":"07:37","startHours":5.9795295784213085,"endHours":7.613152788168991,"quality":"inauspicious"},{"name":"Udveg","start":"07:37","end":"09:15","startHours":7.613152788168991,"endHours":9.246775997916673,"quality":"inauspicious"},{"name":"Chala","start":"09:15","end":"10:53","startHours":9.246775997916673,"endHours":10.880399207664354,"quality":"neutral"},{"name":"Labha","start":"10:53","end":"12:31","startHours":10.880399207664354,"endHours":12.514022417412036,"quality":"auspicious"},{"name":"Amṛta","start":"12:31","end":"14:09","startHours":12.514022417412036,"endHours":14.147645627159719,"quality":"auspicious"},{"name":"Kāla","start":"14:09","end":"15:47","startHours":14.147645627159719,"endHours":15.781268836907401,"quality":"inauspicious"},{"name":"Śubha","start":"15:47","end":"17:25","startHours":15.781268836907401,"endHours":17.414892046655083,"quality":"auspicious"},{"name":"Roga","start":"17:25","end":"19:03","startHours":17.414892046655083,"endHours":19.048515256402766,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:03","end":"20:25","startHours":19.048515256402766,"endHours":20.414892046655083,"quality":"inauspicious"},{"name":"Śubha","start":"20:25","end":"21:47","startHours":20.414892046655083,"endHours":21.7812688369074,"quality":"auspicious"},{"name":"Roga","start":"21:47","end":"23:09","startHours":21.7812688369074,"endHours":23.14764562715972,"quality":"inauspicious"},{"name":"Udveg","start":"23:09","end":"00:31","startHours":23.14764562715972,"endHours":24.514022417412036,"quality":"inauspicious"},{"name":"Chala","start":"00:31","end":"01:53","startHours":24.514022417412036,"endHours":25.880399207664354,"quality":"neutral"},{"name":"Labha","start":"01:53","end":"03:15","startHours":25.880399207664354,"endHours":27.24677599791667,"quality":"auspicious"},{"name":"Amṛta","start":"03:15","end":"04:37","startHours":27.24677599791667,"endHours":28.61315278816899,"quality":"auspicious"},{"name":"Kāla","start":"04:37","end":"05:59","startHours":28.61315278816899,"endHours":29.979529578421307,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:59","end":"06:59","startHours":5.9795295784213085,"endHours":6.9795295784213085,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:59","end":"07:59","startHours":6.9795295784213085,"endHours":7.9795295784213085,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:59","end":"08:59","startHours":7.9795295784213085,"endHours":8.979529578421308,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:59","end":"09:59","startHours":8.979529578421308,"endHours":9.979529578421308,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:59","end":"10:59","startHours":9.979529578421308,"endHours":10.979529578421308,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:59","end":"11:59","startHours":10.979529578421308,"endHours":11.979529578421308,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:59","end":"12:59","startHours":11.979529578421308,"endHours":12.979529578421308,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:59","end":"13:59","startHours":12.979529578421308,"endHours":13.979529578421308,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:59","end":"14:59","startHours":13.979529578421308,"endHours":14.979529578421308,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:59","end":"15:59","startHours":14.979529578421308,"endHours":15.979529578421308,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:59","end":"16:59","startHours":15.979529578421308,"endHours":16.979529578421307,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:59","end":"17:59","startHours":16.979529578421307,"endHours":17.979529578421307,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:59","end":"18:59","startHours":17.979529578421307,"endHours":18.979529578421307,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:59","end":"19:59","startHours":18.979529578421307,"endHours":19.979529578421307,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:59","end":"20:59","startHours":19.979529578421307,"endHours":20.979529578421307,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:59","end":"21:59","startHours":20.979529578421307,"endHours":21.979529578421307,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:59","end":"22:59","startHours":21.979529578421307,"endHours":22.979529578421307,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:59","end":"23:59","startHours":22.979529578421307,"endHours":23.979529578421307,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:59","end":"00:59","startHours":23.979529578421307,"endHours":24.979529578421307,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:59","end":"01:59","startHours":24.979529578421307,"endHours":25.979529578421307,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:59","end":"02:59","startHours":25.979529578421307,"endHours":26.979529578421307,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:59","end":"03:59","startHours":26.979529578421307,"endHours":27.979529578421307,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:59","end":"04:59","startHours":27.979529578421307,"endHours":28.979529578421307,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:59","end":"05:59","startHours":28.979529578421307,"endHours":29.979529578421307,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"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":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-11.069582081585574,"eotMinutes":-14.28334504472219,"ayanamsa":26.076}},"calendars":{"vikram_samvat":2216,"vikram_samvatsara":"Aṅgirasa","saka_samvat":2081,"saka_samvatsara":"Siddhārthī","bengali_samvat":1566,"malayalam_era":1335,"nanakshahi_year":690,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Dvitīyā · Vikram 2216 Aṅgirasa · Śaka 2081 Siddhārthī"},"festivals":[{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi":"Kumbha"},"precedence":5}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 20, 2159 CE · Perth, Australia · Vidhyamitra","description":"February 20, 2159 CE for Perth, Australia: Śukla Dvitīyā, sūryodaya 05:59, sūryāsta 19:03.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2159-02-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2159-02-20","sa":"https://sa.vidhyamitra.com/city/perth/2159-02-20","hi":"https://hi.vidhyamitra.com/city/perth/2159-02-20","x-default":"https://vidhyamitra.com/city/perth/2159-02-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-27T20:59:14.378Z","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":"2026-05-27T20:59:14.378Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-27T20:59:14.378Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}