{"id":"vidhyamitra:city-day:perth:2104-02-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2104-02-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2104-02-20","date_display":"February 20, 2104 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":2104,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489579.770833,"kali_year":5205,"ahargana":1901114.2708,"sun":{"sidereal_longitude":305.0342,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":226.8157,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":281.7815,"elapsed_within_tithi_degrees":5.7815},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1,"moon_longitude":226.8157,"elapsed_within_degrees":0.1491},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":171.8499},"karana":{"half_tithi_index":46,"name":"Taitila"},"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":2104,"month":2,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2489579.770833,"ahargana":1901114.2708,"kali_year":5205,"ayanamsa_lahiri":25.3077,"grahas":{"sun":{"sidereal_longitude":305.16470200000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":224.00240199999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false,"latitude":-1.7569},"mars":{"sidereal_longitude":83.57250199999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":311.830602,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":288.16680199999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"venus":{"sidereal_longitude":282.64740200000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":226.27180199999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":249.8171,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":69.8171,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":2104,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489579.770833,"kali_year":5205,"ahargana":1901114.2708,"sun":{"sidereal_longitude":305.0342,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":226.8157,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":281.7815,"elapsed_within_tithi_degrees":5.7815},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1,"moon_longitude":226.8157,"elapsed_within_degrees":0.1491},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":171.8499},"karana":{"half_tithi_index":46,"name":"Taitila"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.757,"elongation":78.218},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.757,"opposition_distance":101.782}},"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":"05:58","sunsetLocal":"19:04","solarNoonLocal":"12:31","dayLengthHours":13.089579620965184,"dayLengthDisplay":"13 Hours 05 Mins 22 Secs","nightLengthDisplay":"10 Hours 54 Mins 38 Secs","moonriseLocal":"00:05","moonsetLocal":"14:07","rahuKala":{"name":"Rāhu Kāla","start":"12:31","end":"14:09","startHours":12.514022417412036,"endHours":14.150219870032684,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:36","end":"09:14","startHours":7.605430059550091,"endHours":9.241627512170739,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:53","end":"12:31","startHours":10.877824964791387,"endHours":12.514022417412036,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:28","startHours":9.02346785182132,"endHours":9.459787172520159,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:31","end":"06:52","startHours":6.514631757802992,"endHours":6.863687214362064,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:57","startHours":12.077703096713197,"endHours":12.950341738110875,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:13","end":"05:06","startHours":4.223955324134086,"endHours":5.096593965531764,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:53","end":"05:58","startHours":4.878434305182345,"endHours":5.9692326069294435,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:42","end":"15:34","startHours":14.695619020906232,"endHours":15.56825766230391,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:52","end":"19:16","startHours":18.858812227894628,"endHours":19.258812227894627,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:04","end":"19:36","startHours":19.058812227894627,"endHours":19.604211378768177,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:49","end":"20:34","startHours":18.808812227894627,"endHours":20.558812227894627,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:57","startHours":24.077703096713197,"endHours":24.950341738110875,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:58","end":"07:36","startHours":5.9692326069294435,"endHours":7.605430059550091,"quality":"auspicious"},{"name":"Amṛta","start":"07:36","end":"09:14","startHours":7.605430059550091,"endHours":9.241627512170739,"quality":"auspicious"},{"name":"Kāla","start":"09:14","end":"10:53","startHours":9.241627512170739,"endHours":10.877824964791387,"quality":"inauspicious"},{"name":"Śubha","start":"10:53","end":"12:31","startHours":10.877824964791387,"endHours":12.514022417412036,"quality":"auspicious"},{"name":"Roga","start":"12:31","end":"14:09","startHours":12.514022417412036,"endHours":14.150219870032684,"quality":"inauspicious"},{"name":"Udveg","start":"14:09","end":"15:47","startHours":14.150219870032684,"endHours":15.786417322653332,"quality":"inauspicious"},{"name":"Chala","start":"15:47","end":"17:25","startHours":15.786417322653332,"endHours":17.422614775273978,"quality":"neutral"},{"name":"Labha","start":"17:25","end":"19:04","startHours":17.422614775273978,"endHours":19.058812227894627,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:04","end":"20:25","startHours":19.058812227894627,"endHours":20.422614775273978,"quality":"inauspicious"},{"name":"Chala","start":"20:25","end":"21:47","startHours":20.422614775273978,"endHours":21.78641732265333,"quality":"neutral"},{"name":"Labha","start":"21:47","end":"23:09","startHours":21.78641732265333,"endHours":23.150219870032682,"quality":"auspicious"},{"name":"Amṛta","start":"23:09","end":"00:31","startHours":23.150219870032682,"endHours":24.514022417412036,"quality":"auspicious"},{"name":"Kāla","start":"00:31","end":"01:53","startHours":24.514022417412036,"endHours":25.877824964791387,"quality":"inauspicious"},{"name":"Śubha","start":"01:53","end":"03:14","startHours":25.877824964791387,"endHours":27.241627512170737,"quality":"auspicious"},{"name":"Roga","start":"03:14","end":"04:36","startHours":27.241627512170737,"endHours":28.60543005955009,"quality":"inauspicious"},{"name":"Udveg","start":"04:36","end":"05:58","startHours":28.60543005955009,"endHours":29.969232606929445,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:58","end":"06:58","startHours":5.9692326069294435,"endHours":6.9692326069294435,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:58","end":"07:58","startHours":6.9692326069294435,"endHours":7.9692326069294435,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:58","end":"08:58","startHours":7.9692326069294435,"endHours":8.969232606929443,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:58","end":"09:58","startHours":8.969232606929443,"endHours":9.969232606929443,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:58","end":"10:58","startHours":9.969232606929443,"endHours":10.969232606929443,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:58","end":"11:58","startHours":10.969232606929443,"endHours":11.969232606929443,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:58","end":"12:58","startHours":11.969232606929443,"endHours":12.969232606929443,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:58","end":"13:58","startHours":12.969232606929443,"endHours":13.969232606929443,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:58","end":"14:58","startHours":13.969232606929443,"endHours":14.969232606929443,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:58","end":"15:58","startHours":14.969232606929443,"endHours":15.969232606929443,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:58","end":"16:58","startHours":15.969232606929443,"endHours":16.969232606929445,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:58","end":"17:58","startHours":16.969232606929445,"endHours":17.969232606929445,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:58","end":"18:58","startHours":17.969232606929445,"endHours":18.969232606929445,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:58","end":"19:58","startHours":18.969232606929445,"endHours":19.969232606929445,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:58","end":"20:58","startHours":19.969232606929445,"endHours":20.969232606929445,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:58","end":"21:58","startHours":20.969232606929445,"endHours":21.969232606929445,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:58","end":"22:58","startHours":21.969232606929445,"endHours":22.969232606929445,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:58","end":"23:58","startHours":22.969232606929445,"endHours":23.969232606929445,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:58","end":"00:58","startHours":23.969232606929445,"endHours":24.969232606929445,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:58","end":"01:58","startHours":24.969232606929445,"endHours":25.969232606929445,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:58","end":"02:58","startHours":25.969232606929445,"endHours":26.969232606929445,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:58","end":"03:58","startHours":26.969232606929445,"endHours":27.969232606929445,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:58","end":"04:58","startHours":27.969232606929445,"endHours":28.969232606929445,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:58","end":"05:58","startHours":28.969232606929445,"endHours":29.969232606929445,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"North-East","rahuVasa":"South-West","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-11.304289186167276,"eotMinutes":-14.28334504472219,"ayanamsa":25.3077}},"calendars":{"vikram_samvat":2161,"vikram_samvatsara":"Īśvara","saka_samvat":2026,"saka_samvatsara":"Raktākṣī","bengali_samvat":1511,"malayalam_era":1280,"nanakshahi_year":635,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","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":"Phālguna Kṛṣṇa Navamī · Vikram 2161 Īśvara · Śaka 2026 Raktākṣī"},"festivals":[],"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5}]},"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, 2104 CE · Perth, Australia · Vidhyamitra","description":"February 20, 2104 CE for Perth, Australia: Kṛṣṇa Navamī, sūryodaya 05:58, sūryāsta 19:04.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2104-02-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2104-02-20","sa":"https://sa.vidhyamitra.com/city/perth/2104-02-20","hi":"https://hi.vidhyamitra.com/city/perth/2104-02-20","x-default":"https://vidhyamitra.com/city/perth/2104-02-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T19:15:57.628Z","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":"2026-06-01T19:15:57.628Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T19:15:57.628Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}