{"id":"vidhyamitra:city-day:perth:2117-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2117-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2117-02-01","date_display":"February 1, 2117 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":2117,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2494309.770833,"kali_year":5218,"ahargana":1905844.2708,"sun":{"sidereal_longitude":286.3336,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":279.7919,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":353.4583,"elapsed_within_tithi_degrees":5.4583},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":279.7919,"elapsed_within_degrees":13.1252},"yoga":{"number":16,"name":"Siddhi","sum_longitude":206.1255},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"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":2117,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2494309.770833,"ahargana":1905844.2708,"kali_year":5218,"ayanamsa_lahiri":25.4886,"grahas":{"sun":{"sidereal_longitude":286.601582,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":278.942682,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false,"latitude":-4.4232},"mars":{"sidereal_longitude":33.484482000000014,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":277.425082,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":313.86038199999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":279.06418199999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":5.635282000000018,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":359.199,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":179.199,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","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":2117,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2494309.770833,"kali_year":5218,"ahargana":1905844.2708,"sun":{"sidereal_longitude":286.3336,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":279.7919,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":353.4583,"elapsed_within_tithi_degrees":5.4583},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":279.7919,"elapsed_within_degrees":13.1252},"yoga":{"number":16,"name":"Siddhi","sum_longitude":206.1255},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.423,"elongation":6.542},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.423,"opposition_distance":173.458}},"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":13.620953577462029,"dayLengthDisplay":"13 Hours 37 Mins 15 Secs","nightLengthDisplay":"10 Hours 22 Mins 45 Secs","moonriseLocal":"05:07","moonsetLocal":"18:53","rahuKala":{"name":"Rāhu Kāla","start":"07:24","end":"09:06","startHours":7.396264877075,"endHours":9.098884074257754,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:48","end":"12:30","startHours":10.801503271440506,"endHours":12.504122468623262,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:12","end":"15:55","startHours":14.206741665806014,"endHours":15.909360862988766,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:20","startHours":8.871868181300053,"endHours":9.325899967215454,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:37","startHours":6.261185412286498,"endHours":6.624410841018818,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:57","startHours":12.050090682707859,"endHours":12.95815425453866,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:53","end":"04:47","startHours":3.877518536230643,"endHours":4.785582108061445,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:34","end":"05:42","startHours":4.5585662151037445,"endHours":5.693645679892247,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:46","end":"15:41","startHours":14.774281398200266,"endHours":15.682344970031068,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:07","end":"19:31","startHours":19.114599257354275,"endHours":19.514599257354273,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:19","end":"19:53","startHours":19.314599257354274,"endHours":19.882138989748526,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:04","end":"20:49","startHours":19.064599257354274,"endHours":20.814599257354274,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:57","startHours":24.050090682707857,"endHours":24.95815425453866,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:42","end":"07:24","startHours":5.693645679892247,"endHours":7.396264877075,"quality":"auspicious"},{"name":"Kāla","start":"07:24","end":"09:06","startHours":7.396264877075,"endHours":9.098884074257754,"quality":"inauspicious"},{"name":"Śubha","start":"09:06","end":"10:48","startHours":9.098884074257754,"endHours":10.801503271440506,"quality":"auspicious"},{"name":"Roga","start":"10:48","end":"12:30","startHours":10.801503271440506,"endHours":12.504122468623262,"quality":"inauspicious"},{"name":"Udveg","start":"12:30","end":"14:12","startHours":12.504122468623262,"endHours":14.206741665806014,"quality":"inauspicious"},{"name":"Chala","start":"14:12","end":"15:55","startHours":14.206741665806014,"endHours":15.909360862988766,"quality":"neutral"},{"name":"Labha","start":"15:55","end":"17:37","startHours":15.909360862988766,"endHours":17.611980060171522,"quality":"auspicious"},{"name":"Amṛta","start":"17:37","end":"19:19","startHours":17.611980060171522,"endHours":19.314599257354274,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:19","end":"20:37","startHours":19.314599257354274,"endHours":20.611980060171522,"quality":"neutral"},{"name":"Labha","start":"20:37","end":"21:55","startHours":20.611980060171522,"endHours":21.909360862988766,"quality":"auspicious"},{"name":"Amṛta","start":"21:55","end":"23:12","startHours":21.909360862988766,"endHours":23.206741665806014,"quality":"auspicious"},{"name":"Kāla","start":"23:12","end":"00:30","startHours":23.206741665806014,"endHours":24.504122468623258,"quality":"inauspicious"},{"name":"Śubha","start":"00:30","end":"01:48","startHours":24.504122468623258,"endHours":25.801503271440506,"quality":"auspicious"},{"name":"Roga","start":"01:48","end":"03:06","startHours":25.801503271440506,"endHours":27.098884074257754,"quality":"inauspicious"},{"name":"Udveg","start":"03:06","end":"04:24","startHours":27.098884074257754,"endHours":28.396264877074998,"quality":"inauspicious"},{"name":"Chala","start":"04:24","end":"05:42","startHours":28.396264877074998,"endHours":29.693645679892246,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:42","end":"06:42","startHours":5.693645679892247,"endHours":6.693645679892247,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:42","end":"07:42","startHours":6.693645679892247,"endHours":7.693645679892247,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:42","end":"08:42","startHours":7.693645679892247,"endHours":8.693645679892246,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:42","end":"09:42","startHours":8.693645679892246,"endHours":9.693645679892246,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:42","end":"10:42","startHours":9.693645679892246,"endHours":10.693645679892246,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:42","end":"11:42","startHours":10.693645679892246,"endHours":11.693645679892246,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:42","end":"12:42","startHours":11.693645679892246,"endHours":12.693645679892246,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:42","end":"13:42","startHours":12.693645679892246,"endHours":13.693645679892246,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:42","end":"14:42","startHours":13.693645679892246,"endHours":14.693645679892246,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:42","end":"15:42","startHours":14.693645679892246,"endHours":15.693645679892246,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:42","end":"16:42","startHours":15.693645679892246,"endHours":16.693645679892246,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:42","end":"17:42","startHours":16.693645679892246,"endHours":17.693645679892246,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:42","end":"18:42","startHours":17.693645679892246,"endHours":18.693645679892246,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:42","end":"19:42","startHours":18.693645679892246,"endHours":19.693645679892246,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:42","end":"20:42","startHours":19.693645679892246,"endHours":20.693645679892246,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:42","end":"21:42","startHours":20.693645679892246,"endHours":21.693645679892246,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:42","end":"22:42","startHours":21.693645679892246,"endHours":22.693645679892246,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:42","end":"23:42","startHours":22.693645679892246,"endHours":23.693645679892246,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:42","end":"00:42","startHours":23.693645679892246,"endHours":24.693645679892246,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:42","end":"01:42","startHours":24.693645679892246,"endHours":25.693645679892246,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:42","end":"02:42","startHours":25.693645679892246,"endHours":26.693645679892246,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:42","end":"03:42","startHours":26.693645679892246,"endHours":27.693645679892246,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:42","end":"04:42","startHours":27.693645679892246,"endHours":28.693645679892246,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:42","end":"05:42","startHours":28.693645679892246,"endHours":29.693645679892246,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Rākṣasa","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":-17.16674604420928,"eotMinutes":-13.689348117395623,"ayanamsa":25.4886}},"calendars":{"vikram_samvat":2174,"vikram_samvatsara":"Vikṛti","saka_samvat":2039,"saka_samvatsara":"Īśvara","bengali_samvat":1524,"malayalam_era":1293,"nanakshahi_year":648,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Amāvasyā · Vikram 2174 Vikṛti · Śaka 2039 Īśvara"},"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":"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":"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","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 1, 2117 CE · Perth, Australia · Vidhyamitra","description":"February 1, 2117 CE for Perth, Australia: Kṛṣṇa Amāvasyā, sūryodaya 05:42, sūryāsta 19:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2117-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2117-02-01","sa":"https://sa.vidhyamitra.com/city/perth/2117-02-01","hi":"https://hi.vidhyamitra.com/city/perth/2117-02-01","x-default":"https://vidhyamitra.com/city/perth/2117-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-22T11:56:12.424Z","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":"2026-05-22T11:56:12.424Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-22T11:56:12.424Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}