{"id":"vidhyamitra:city-day:perth:2039-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2039-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2039-02-01","date_display":"February 1, 2039 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":2039,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2465820.770833,"kali_year":5140,"ahargana":1877355.2708,"sun":{"sidereal_longitude":287.5429,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":15.67,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":88.1271,"elapsed_within_tithi_degrees":4.1271},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":15.67,"elapsed_within_degrees":2.3367},"yoga":{"number":23,"name":"Śubha","sum_longitude":303.2129},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"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":2039,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2465820.770833,"ahargana":1877355.2708,"kali_year":5140,"ayanamsa_lahiri":24.399,"grahas":{"sun":{"sidereal_longitude":287.62147100000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":15.965771000000018,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false,"latitude":-3.5931},"mars":{"sidereal_longitude":259.939471,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":292.154171,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":122.96667100000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":312.4867710000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":153.73607100000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":68.6833,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":248.6833,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"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":2039,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2465820.770833,"kali_year":5140,"ahargana":1877355.2708,"sun":{"sidereal_longitude":287.5429,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":15.67,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":88.1271,"elapsed_within_tithi_degrees":4.1271},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":15.67,"elapsed_within_degrees":2.3367},"yoga":{"number":23,"name":"Śubha","sum_longitude":303.2129},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.593,"elongation":88.127},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.593,"opposition_distance":91.873}},"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":"05:42","sunsetLocal":"19:19","solarNoonLocal":"12:30","dayLengthHours":13.622779897193833,"dayLengthDisplay":"13 Hours 37 Mins 22 Secs","nightLengthDisplay":"10 Hours 22 Mins 38 Secs","moonriseLocal":"12:59","moonsetLocal":"23:48","rahuKala":{"name":"Rāhu Kāla","start":"15:55","end":"17:37","startHours":15.909817442921717,"endHours":17.61266493007095,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:06","end":"10:48","startHours":9.098427494324802,"endHours":10.80127498147403,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:30","end":"14:12","startHours":12.50412246862326,"endHours":14.20696995577249,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:20","startHours":8.871381162704905,"endHours":9.325473825944698,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:37","startHours":6.260348349076086,"endHours":6.6236224796679215,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:57","startHours":12.050029805383465,"endHours":12.958215131863055,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:53","end":"04:47","startHours":3.8763618670671653,"endHours":4.7845471935467545,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:33","end":"05:42","startHours":4.557500861926857,"endHours":5.692732520026343,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:46","end":"15:41","startHours":14.774585784822232,"endHours":15.682771111301822,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:07","end":"19:31","startHours":19.115512417220177,"endHours":19.515512417220176,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:19","end":"19:53","startHours":19.315512417220177,"endHours":19.88312824626992,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:04","end":"20:49","startHours":19.065512417220177,"endHours":20.815512417220177,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:57","startHours":24.050029805383463,"endHours":24.958215131863053,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:42","end":"07:24","startHours":5.692732520026343,"endHours":7.395580007175573,"quality":"inauspicious"},{"name":"Udveg","start":"07:24","end":"09:06","startHours":7.395580007175573,"endHours":9.098427494324802,"quality":"inauspicious"},{"name":"Chala","start":"09:06","end":"10:48","startHours":9.098427494324802,"endHours":10.80127498147403,"quality":"neutral"},{"name":"Labha","start":"10:48","end":"12:30","startHours":10.80127498147403,"endHours":12.50412246862326,"quality":"auspicious"},{"name":"Amṛta","start":"12:30","end":"14:12","startHours":12.50412246862326,"endHours":14.20696995577249,"quality":"auspicious"},{"name":"Kāla","start":"14:12","end":"15:55","startHours":14.20696995577249,"endHours":15.909817442921717,"quality":"inauspicious"},{"name":"Śubha","start":"15:55","end":"17:37","startHours":15.909817442921717,"endHours":17.61266493007095,"quality":"auspicious"},{"name":"Roga","start":"17:37","end":"19:19","startHours":17.61266493007095,"endHours":19.315512417220177,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:19","end":"20:37","startHours":19.315512417220177,"endHours":20.61266493007095,"quality":"inauspicious"},{"name":"Śubha","start":"20:37","end":"21:55","startHours":20.61266493007095,"endHours":21.909817442921717,"quality":"auspicious"},{"name":"Roga","start":"21:55","end":"23:12","startHours":21.909817442921717,"endHours":23.20696995577249,"quality":"inauspicious"},{"name":"Udveg","start":"23:12","end":"00:30","startHours":23.20696995577249,"endHours":24.504122468623258,"quality":"inauspicious"},{"name":"Chala","start":"00:30","end":"01:48","startHours":24.504122468623258,"endHours":25.80127498147403,"quality":"neutral"},{"name":"Labha","start":"01:48","end":"03:06","startHours":25.80127498147403,"endHours":27.098427494324802,"quality":"auspicious"},{"name":"Amṛta","start":"03:06","end":"04:24","startHours":27.098427494324802,"endHours":28.395580007175575,"quality":"auspicious"},{"name":"Kāla","start":"04:24","end":"05:42","startHours":28.395580007175575,"endHours":29.692732520026343,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:42","end":"06:42","startHours":5.692732520026343,"endHours":6.692732520026343,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:42","end":"07:42","startHours":6.692732520026343,"endHours":7.692732520026343,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:42","end":"08:42","startHours":7.692732520026343,"endHours":8.692732520026343,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:42","end":"09:42","startHours":8.692732520026343,"endHours":9.692732520026343,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:42","end":"10:42","startHours":9.692732520026343,"endHours":10.692732520026343,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:42","end":"11:42","startHours":10.692732520026343,"endHours":11.692732520026343,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:42","end":"12:42","startHours":11.692732520026343,"endHours":12.692732520026343,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:42","end":"13:42","startHours":12.692732520026343,"endHours":13.692732520026343,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:42","end":"14:42","startHours":13.692732520026343,"endHours":14.692732520026343,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:42","end":"15:42","startHours":14.692732520026343,"endHours":15.692732520026343,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:42","end":"16:42","startHours":15.692732520026343,"endHours":16.692732520026343,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:42","end":"17:42","startHours":16.692732520026343,"endHours":17.692732520026343,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:42","end":"18:42","startHours":17.692732520026343,"endHours":18.692732520026343,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:42","end":"19:42","startHours":18.692732520026343,"endHours":19.692732520026343,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:42","end":"20:42","startHours":19.692732520026343,"endHours":20.692732520026343,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:42","end":"21:42","startHours":20.692732520026343,"endHours":21.692732520026343,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:42","end":"22:42","startHours":21.692732520026343,"endHours":22.692732520026343,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:42","end":"23:42","startHours":22.692732520026343,"endHours":23.692732520026343,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:42","end":"00:42","startHours":23.692732520026343,"endHours":24.692732520026343,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:42","end":"01:42","startHours":24.692732520026343,"endHours":25.692732520026343,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:42","end":"02:42","startHours":25.692732520026343,"endHours":26.692732520026343,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:42","end":"03:42","startHours":26.692732520026343,"endHours":27.692732520026343,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:42","end":"04:42","startHours":27.692732520026343,"endHours":28.692732520026343,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:42","end":"05:42","startHours":28.692732520026343,"endHours":29.692732520026343,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-17.186185468701265,"eotMinutes":-13.689348117395623,"ayanamsa":24.399}},"calendars":{"vikram_samvat":2096,"vikram_samvatsara":"Aṅgirasa","saka_samvat":1961,"saka_samvatsara":"Siddhārthī","bengali_samvat":1446,"malayalam_era":1215,"nanakshahi_year":570,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Aṣṭamī · Vikram 2096 Aṅgirasa · Śaka 1961 Siddhārthī"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"bhishma-ashtami","name":"Bhīṣmāṣṭamī","name_sanskrit":"भीष्माष्टमी","tradition":"Pan-Hindu","associated_deity":"Bhīṣma Pitāmaha","significance":"Bhīṣma's mahaprasthāna anniversary (Māgha Śukla 8); Bhīṣma-tarpaṇa.","vrata":true,"detection":{"tithi_number":8,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2,"sources":["Mahābhārata, Anuśāsana Parva"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"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":[{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","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 1, 2039 CE · Perth, Australia · Vidhyamitra","description":"February 1, 2039 CE for Perth, Australia: Śukla Aṣṭamī, sūryodaya 05:42, sūryāsta 19:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2039-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2039-02-01","sa":"https://sa.vidhyamitra.com/city/perth/2039-02-01","hi":"https://hi.vidhyamitra.com/city/perth/2039-02-01","x-default":"https://vidhyamitra.com/city/perth/2039-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T13:51:49.635Z","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":"2026-05-15T13:51:49.635Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T13:51:49.635Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}