{"id":"vidhyamitra:city-day:perth:2116-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2116-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2116-02-01","date_display":"February 1, 2116 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":2116,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2493943.770833,"kali_year":5217,"ahargana":1905478.2708,"sun":{"sidereal_longitude":285.5756,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":135.0887,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":209.5131,"elapsed_within_tithi_degrees":5.5131},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":135.0887,"elapsed_within_degrees":1.7554},"yoga":{"number":5,"name":"Śobhana","sum_longitude":60.6643},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2116,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2493943.770833,"ahargana":1905478.2708,"kali_year":5217,"ayanamsa_lahiri":25.4746,"grahas":{"sun":{"sidereal_longitude":285.84646599999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":137.519366,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false,"latitude":4.0265},"mars":{"sidereal_longitude":242.86006599999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":265.1166659999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":286.44946600000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"venus":{"sidereal_longitude":329.12456599999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":353.091766,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":18.5914,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":198.5914,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"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":2116,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2493943.770833,"kali_year":5217,"ahargana":1905478.2708,"sun":{"sidereal_longitude":285.5756,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":135.0887,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":209.5131,"elapsed_within_tithi_degrees":5.5131},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":135.0887,"elapsed_within_degrees":1.7554},"yoga":{"number":5,"name":"Śobhana","sum_longitude":60.6643},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.026,"elongation":150.487},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.026,"opposition_distance":29.513}},"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":"05:41","sunsetLocal":"19:19","solarNoonLocal":"12:30","dayLengthHours":13.641003960067732,"dayLengthDisplay":"13 Hours 38 Mins 28 Secs","nightLengthDisplay":"10 Hours 21 Mins 32 Secs","moonriseLocal":"20:51","moonsetLocal":"08:23","rahuKala":{"name":"Rāhu Kāla","start":"09:06","end":"10:48","startHours":9.093871478606328,"endHours":10.798996973614793,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:13","end":"15:55","startHours":14.209247963631727,"endHours":15.914373458640192,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:41","end":"07:23","startHours":5.683620488589394,"endHours":7.388745983597861,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:19","startHours":8.866521412605199,"endHours":9.321221544607456,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:15","end":"06:37","startHours":6.251995653592216,"endHours":6.615755759194022,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:58","startHours":12.049422336621003,"endHours":12.958822600625517,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:52","end":"04:46","startHours":3.8648199605803635,"endHours":4.774220224584878,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:33","end":"05:41","startHours":4.54687015858375,"endHours":5.683620488589394,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:41","startHours":14.777623128634549,"endHours":15.687023392639064,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:07","end":"19:31","startHours":19.124624448657126,"endHours":19.524624448657125,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:19","end":"19:54","startHours":19.324624448657126,"endHours":19.89299961365995,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:04","end":"20:49","startHours":19.074624448657126,"endHours":20.824624448657126,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:58","startHours":24.049422336621,"endHours":24.958822600625517,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:41","end":"07:23","startHours":5.683620488589394,"endHours":7.388745983597861,"quality":"inauspicious"},{"name":"Śubha","start":"07:23","end":"09:06","startHours":7.388745983597861,"endHours":9.093871478606328,"quality":"auspicious"},{"name":"Roga","start":"09:06","end":"10:48","startHours":9.093871478606328,"endHours":10.798996973614793,"quality":"inauspicious"},{"name":"Udveg","start":"10:48","end":"12:30","startHours":10.798996973614793,"endHours":12.50412246862326,"quality":"inauspicious"},{"name":"Chala","start":"12:30","end":"14:13","startHours":12.50412246862326,"endHours":14.209247963631727,"quality":"neutral"},{"name":"Labha","start":"14:13","end":"15:55","startHours":14.209247963631727,"endHours":15.914373458640192,"quality":"auspicious"},{"name":"Amṛta","start":"15:55","end":"17:37","startHours":15.914373458640192,"endHours":17.61949895364866,"quality":"auspicious"},{"name":"Kāla","start":"17:37","end":"19:19","startHours":17.61949895364866,"endHours":19.324624448657126,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:19","end":"20:37","startHours":19.324624448657126,"endHours":20.61949895364866,"quality":"auspicious"},{"name":"Amṛta","start":"20:37","end":"21:55","startHours":20.61949895364866,"endHours":21.914373458640192,"quality":"auspicious"},{"name":"Kāla","start":"21:55","end":"23:13","startHours":21.914373458640192,"endHours":23.209247963631725,"quality":"inauspicious"},{"name":"Śubha","start":"23:13","end":"00:30","startHours":23.209247963631725,"endHours":24.504122468623258,"quality":"auspicious"},{"name":"Roga","start":"00:30","end":"01:48","startHours":24.504122468623258,"endHours":25.79899697361479,"quality":"inauspicious"},{"name":"Udveg","start":"01:48","end":"03:06","startHours":25.79899697361479,"endHours":27.093871478606328,"quality":"inauspicious"},{"name":"Chala","start":"03:06","end":"04:23","startHours":27.093871478606328,"endHours":28.38874598359786,"quality":"neutral"},{"name":"Labha","start":"04:23","end":"05:41","startHours":28.38874598359786,"endHours":29.683620488589394,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:41","end":"06:41","startHours":5.683620488589394,"endHours":6.683620488589394,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:41","end":"07:41","startHours":6.683620488589394,"endHours":7.683620488589394,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:41","end":"08:41","startHours":7.683620488589394,"endHours":8.683620488589394,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:41","end":"09:41","startHours":8.683620488589394,"endHours":9.683620488589394,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:41","end":"10:41","startHours":9.683620488589394,"endHours":10.683620488589394,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:41","end":"11:41","startHours":10.683620488589394,"endHours":11.683620488589394,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:41","end":"12:41","startHours":11.683620488589394,"endHours":12.683620488589394,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:41","end":"13:41","startHours":12.683620488589394,"endHours":13.683620488589394,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:41","end":"14:41","startHours":13.683620488589394,"endHours":14.683620488589394,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:41","end":"15:41","startHours":14.683620488589394,"endHours":15.683620488589394,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:41","end":"16:41","startHours":15.683620488589394,"endHours":16.683620488589394,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:41","end":"17:41","startHours":16.683620488589394,"endHours":17.683620488589394,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:41","end":"18:41","startHours":17.683620488589394,"endHours":18.683620488589394,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:41","end":"19:41","startHours":18.683620488589394,"endHours":19.683620488589394,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:41","end":"20:41","startHours":19.683620488589394,"endHours":20.683620488589394,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:41","end":"21:41","startHours":20.683620488589394,"endHours":21.683620488589394,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:41","end":"22:41","startHours":21.683620488589394,"endHours":22.683620488589394,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:41","end":"23:41","startHours":22.683620488589394,"endHours":23.683620488589394,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:41","end":"00:41","startHours":23.683620488589394,"endHours":24.683620488589394,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:41","end":"01:41","startHours":24.683620488589394,"endHours":25.683620488589394,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:41","end":"02:41","startHours":25.683620488589394,"endHours":26.683620488589394,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:41","end":"03:41","startHours":26.683620488589394,"endHours":27.683620488589394,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:41","end":"04:41","startHours":27.683620488589394,"endHours":28.683620488589394,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:41","end":"05:41","startHours":28.683620488589394,"endHours":29.683620488589394,"planetary_lord":"Mercury"}],"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":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"West","rahuVasa":"East","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"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":-17.37987489069696,"eotMinutes":-13.689348117395623,"ayanamsa":25.4746}},"calendars":{"vikram_samvat":2173,"vikram_samvatsara":"Virodhi","saka_samvat":2038,"saka_samvatsara":"Dhātṛ","bengali_samvat":1523,"malayalam_era":1292,"nanakshahi_year":647,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Tṛtīyā · Vikram 2173 Virodhi · Śaka 2038 Dhātṛ"},"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":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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, 2116 CE · Perth, Australia · Vidhyamitra","description":"February 1, 2116 CE for Perth, Australia: Kṛṣṇa Tṛtīyā, sūryodaya 05:41, sūryāsta 19:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2116-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2116-02-01","sa":"https://sa.vidhyamitra.com/city/perth/2116-02-01","hi":"https://hi.vidhyamitra.com/city/perth/2116-02-01","x-default":"https://vidhyamitra.com/city/perth/2116-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-22T03:33:39.558Z","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":"2026-05-22T03:33:39.558Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-22T03:33:39.558Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}