{"id":"vidhyamitra:city-day:perth:2055-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2055-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2055-02-01","date_display":"February 1, 2055 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":2055,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2471664.770833,"kali_year":5156,"ahargana":1883199.2708,"sun":{"sidereal_longitude":287.3997,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":337.8841,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":50.4844,"elapsed_within_tithi_degrees":2.4844},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2,"moon_longitude":337.8841,"elapsed_within_degrees":4.5508},"yoga":{"number":20,"name":"Śiva","sum_longitude":265.2839},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2055,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2471664.770833,"ahargana":1883199.2708,"kali_year":5156,"ayanamsa_lahiri":24.6225,"grahas":{"sun":{"sidereal_longitude":287.51618699999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":334.197187,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false,"latitude":-2.8207},"mars":{"sidereal_longitude":52.994786999999974,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":267.458487,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":243.79828699999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"venus":{"sidereal_longitude":313.325687,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":329.048987,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":119.04,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":299.04,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":2055,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2471664.770833,"kali_year":5156,"ahargana":1883199.2708,"sun":{"sidereal_longitude":287.3997,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":337.8841,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":50.4844,"elapsed_within_tithi_degrees":2.4844},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2,"moon_longitude":337.8841,"elapsed_within_degrees":4.5508},"yoga":{"number":20,"name":"Śiva","sum_longitude":265.2839},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.821,"elongation":50.484},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.821,"opposition_distance":129.516}},"eclipse_window_40days":[{"offset_days":11,"type":"lunar","occurs":true,"moon_latitude":0.019,"opposition_distance":0.089}]},"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":"05:42","sunsetLocal":"19:19","solarNoonLocal":"12:30","dayLengthHours":13.619681773852088,"dayLengthDisplay":"13 Hours 37 Mins 11 Secs","nightLengthDisplay":"10 Hours 22 Mins 49 Secs","moonriseLocal":"09:33","moonsetLocal":"21:41","rahuKala":{"name":"Rāhu Kāla","start":"07:24","end":"09:06","startHours":7.396741803428728,"endHours":9.099202025160238,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:48","end":"12:30","startHours":10.80166224689175,"endHours":12.504122468623262,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:12","end":"15:55","startHours":14.206582690354772,"endHours":15.909042912086283,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:20","startHours":8.87220732892937,"endHours":9.326196721391106,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:37","startHours":6.261768322274387,"endHours":6.624959836243776,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:57","startHours":12.050133076161524,"endHours":12.958111861084996,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:53","end":"04:47","startHours":3.878324011850272,"endHours":4.786302796773744,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:34","end":"05:42","startHours":4.559308100542876,"endHours":5.694281581697217,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:46","end":"15:41","startHours":14.774069430931942,"endHours":15.682048215855414,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:07","end":"19:31","startHours":19.113963355549306,"endHours":19.513963355549304,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:19","end":"19:53","startHours":19.313963355549305,"endHours":19.881450096126475,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:04","end":"20:49","startHours":19.063963355549305,"endHours":20.813963355549305,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:57","startHours":24.050133076161522,"endHours":24.958111861084994,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:42","end":"07:24","startHours":5.694281581697217,"endHours":7.396741803428728,"quality":"auspicious"},{"name":"Kāla","start":"07:24","end":"09:06","startHours":7.396741803428728,"endHours":9.099202025160238,"quality":"inauspicious"},{"name":"Śubha","start":"09:06","end":"10:48","startHours":9.099202025160238,"endHours":10.80166224689175,"quality":"auspicious"},{"name":"Roga","start":"10:48","end":"12:30","startHours":10.80166224689175,"endHours":12.504122468623262,"quality":"inauspicious"},{"name":"Udveg","start":"12:30","end":"14:12","startHours":12.504122468623262,"endHours":14.206582690354772,"quality":"inauspicious"},{"name":"Chala","start":"14:12","end":"15:55","startHours":14.206582690354772,"endHours":15.909042912086283,"quality":"neutral"},{"name":"Labha","start":"15:55","end":"17:37","startHours":15.909042912086283,"endHours":17.61150313381779,"quality":"auspicious"},{"name":"Amṛta","start":"17:37","end":"19:19","startHours":17.61150313381779,"endHours":19.313963355549305,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:19","end":"20:37","startHours":19.313963355549305,"endHours":20.611503133817795,"quality":"neutral"},{"name":"Labha","start":"20:37","end":"21:55","startHours":20.611503133817795,"endHours":21.90904291208628,"quality":"auspicious"},{"name":"Amṛta","start":"21:55","end":"23:12","startHours":21.90904291208628,"endHours":23.20658269035477,"quality":"auspicious"},{"name":"Kāla","start":"23:12","end":"00:30","startHours":23.20658269035477,"endHours":24.50412246862326,"quality":"inauspicious"},{"name":"Śubha","start":"00:30","end":"01:48","startHours":24.50412246862326,"endHours":25.801662246891752,"quality":"auspicious"},{"name":"Roga","start":"01:48","end":"03:06","startHours":25.801662246891752,"endHours":27.09920202516024,"quality":"inauspicious"},{"name":"Udveg","start":"03:06","end":"04:24","startHours":27.09920202516024,"endHours":28.39674180342873,"quality":"inauspicious"},{"name":"Chala","start":"04:24","end":"05:42","startHours":28.39674180342873,"endHours":29.69428158169722,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:42","end":"06:42","startHours":5.694281581697217,"endHours":6.694281581697217,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:42","end":"07:42","startHours":6.694281581697217,"endHours":7.694281581697217,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:42","end":"08:42","startHours":7.694281581697217,"endHours":8.694281581697217,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:42","end":"09:42","startHours":8.694281581697217,"endHours":9.694281581697217,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:42","end":"10:42","startHours":9.694281581697217,"endHours":10.694281581697217,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:42","end":"11:42","startHours":10.694281581697217,"endHours":11.694281581697217,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:42","end":"12:42","startHours":11.694281581697217,"endHours":12.694281581697217,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:42","end":"13:42","startHours":12.694281581697217,"endHours":13.694281581697217,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:42","end":"14:42","startHours":13.694281581697217,"endHours":14.694281581697217,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:42","end":"15:42","startHours":14.694281581697217,"endHours":15.694281581697217,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:42","end":"16:42","startHours":15.694281581697217,"endHours":16.69428158169722,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:42","end":"17:42","startHours":16.69428158169722,"endHours":17.69428158169722,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:42","end":"18:42","startHours":17.69428158169722,"endHours":18.69428158169722,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:42","end":"19:42","startHours":18.69428158169722,"endHours":19.69428158169722,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:42","end":"20:42","startHours":19.69428158169722,"endHours":20.69428158169722,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:42","end":"21:42","startHours":20.69428158169722,"endHours":21.69428158169722,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:42","end":"22:42","startHours":21.69428158169722,"endHours":22.69428158169722,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:42","end":"23:42","startHours":22.69428158169722,"endHours":23.69428158169722,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:42","end":"00:42","startHours":23.69428158169722,"endHours":24.69428158169722,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:42","end":"01:42","startHours":24.69428158169722,"endHours":25.69428158169722,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:42","end":"02:42","startHours":25.69428158169722,"endHours":26.69428158169722,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:42","end":"03:42","startHours":26.69428158169722,"endHours":27.69428158169722,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:42","end":"04:42","startHours":27.69428158169722,"endHours":28.69428158169722,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:42","end":"05:42","startHours":28.69428158169722,"endHours":29.69428158169722,"planetary_lord":"Venus"}],"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":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Kāladaṇḍa","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":-17.153205812197875,"eotMinutes":-13.689348117395623,"ayanamsa":24.6225}},"calendars":{"vikram_samvat":2112,"vikram_samvatsara":"Sarvadhāri","saka_samvat":1977,"saka_samvatsara":"Yuva","bengali_samvat":1462,"malayalam_era":1231,"nanakshahi_year":586,"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 Pañcamī · Vikram 2112 Sarvadhāri · Śaka 1977 Yuva"},"festivals":[{"id":"sarasvati-jayanti","name":"Sarasvatī Jayantī (Vasanta Pañchamī)","name_sanskrit":"सरस्वती जयन्ती / वसन्त पञ्चमी","tradition":"Pan-Hindu","associated_deity":"Sarasvatī (Vāk-tattva)","significance":"Manifestation of Devī Sarasvatī; vidyā-ārambha day; vasanta-ṛtu begins.","vrata":true,"detection":{"tithi_number":5,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2,"sources":["Skanda Purāṇa","Devī Bhāgavata"]}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 1, 2055 CE · Perth, Australia · Vidhyamitra","description":"February 1, 2055 CE for Perth, Australia: Śukla Pañcamī, sūryodaya 05:42, sūryāsta 19:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2055-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2055-02-01","sa":"https://sa.vidhyamitra.com/city/perth/2055-02-01","hi":"https://hi.vidhyamitra.com/city/perth/2055-02-01","x-default":"https://vidhyamitra.com/city/perth/2055-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:59:06.757Z","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":"2026-05-31T18:59:06.757Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:59:06.757Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}