{"id":"vidhyamitra:city-day:perth:2028-02-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2028-02-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2028-02-10","date_display":"February 10, 2028 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":2028,"month":2,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461811.770833,"kali_year":5129,"ahargana":1873346.2708,"sun":{"sidereal_longitude":296.5671,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":108.1315,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":171.5643,"elapsed_within_tithi_degrees":3.5643},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1,"moon_longitude":108.1315,"elapsed_within_degrees":1.4648},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":44.6986},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2028,"month":2,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461811.770833,"ahargana":1873346.2708,"kali_year":5129,"ayanamsa_lahiri":24.2457,"grahas":{"sun":{"sidereal_longitude":296.564444,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":108.23614399999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false,"latitude":-0.5504},"mars":{"sidereal_longitude":304.825744,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":280.5850439999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":151.80134399999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":338.413344,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":358.829144,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":281.0994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":101.0994,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":2028,"month":2,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461811.770833,"kali_year":5129,"ahargana":1873346.2708,"sun":{"sidereal_longitude":296.5671,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":108.1315,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":171.5643,"elapsed_within_tithi_degrees":3.5643},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1,"moon_longitude":108.1315,"elapsed_within_degrees":1.4648},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":44.6986},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.55,"elongation":171.564},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.55,"opposition_distance":8.436}},"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":"05:50","sunsetLocal":"19:13","solarNoonLocal":"12:31","dayLengthHours":13.37985946445481,"dayLengthDisplay":"13 Hours 22 Mins 47 Secs","nightLengthDisplay":"10 Hours 37 Mins 13 Secs","moonriseLocal":"18:39","moonsetLocal":"05:17","rahuKala":{"name":"Rāhu Kāla","start":"14:11","end":"15:52","startHours":14.19089385791559,"endHours":15.86337629097244,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:50","end":"07:30","startHours":5.828481692631333,"endHours":7.500964125688184,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:10","end":"10:51","startHours":9.173446558745034,"endHours":10.845928991801888,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:24","startHours":8.950448901004123,"endHours":9.39644421648595,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:23","end":"06:45","startHours":6.385975836983617,"endHours":6.742772089369079,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:58","startHours":12.07241610937691,"endHours":12.964406740340564,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:03","end":"04:56","startHours":4.044500430704025,"endHours":4.936491061667679,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:43","end":"05:50","startHours":4.7134934039267655,"endHours":5.828481692631333,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:45","end":"15:38","startHours":14.748388002267873,"endHours":15.640378633231528,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:01","end":"19:25","startHours":19.008341157086143,"endHours":19.40834115708614,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:13","end":"19:46","startHours":19.208341157086142,"endHours":19.765835301438425,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:58","end":"20:43","startHours":18.958341157086142,"endHours":20.708341157086142,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:58","startHours":24.07241610937691,"endHours":24.964406740340564,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:50","end":"07:30","startHours":5.828481692631333,"endHours":7.500964125688184,"quality":"auspicious"},{"name":"Roga","start":"07:30","end":"09:10","startHours":7.500964125688184,"endHours":9.173446558745034,"quality":"inauspicious"},{"name":"Udveg","start":"09:10","end":"10:51","startHours":9.173446558745034,"endHours":10.845928991801888,"quality":"inauspicious"},{"name":"Chala","start":"10:51","end":"12:31","startHours":10.845928991801888,"endHours":12.518411424858737,"quality":"neutral"},{"name":"Labha","start":"12:31","end":"14:11","startHours":12.518411424858737,"endHours":14.19089385791559,"quality":"auspicious"},{"name":"Amṛta","start":"14:11","end":"15:52","startHours":14.19089385791559,"endHours":15.86337629097244,"quality":"auspicious"},{"name":"Kāla","start":"15:52","end":"17:32","startHours":15.86337629097244,"endHours":17.535858724029293,"quality":"inauspicious"},{"name":"Śubha","start":"17:32","end":"19:13","startHours":17.535858724029293,"endHours":19.208341157086142,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:13","end":"20:32","startHours":19.208341157086142,"endHours":20.53585872402929,"quality":"auspicious"},{"name":"Kāla","start":"20:32","end":"21:52","startHours":20.53585872402929,"endHours":21.86337629097244,"quality":"inauspicious"},{"name":"Śubha","start":"21:52","end":"23:11","startHours":21.86337629097244,"endHours":23.19089385791559,"quality":"auspicious"},{"name":"Roga","start":"23:11","end":"00:31","startHours":23.19089385791559,"endHours":24.518411424858737,"quality":"inauspicious"},{"name":"Udveg","start":"00:31","end":"01:51","startHours":24.518411424858737,"endHours":25.845928991801884,"quality":"inauspicious"},{"name":"Chala","start":"01:51","end":"03:10","startHours":25.845928991801884,"endHours":27.173446558745034,"quality":"neutral"},{"name":"Labha","start":"03:10","end":"04:30","startHours":27.173446558745034,"endHours":28.500964125688185,"quality":"auspicious"},{"name":"Amṛta","start":"04:30","end":"05:50","startHours":28.500964125688185,"endHours":29.828481692631332,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:50","end":"06:50","startHours":5.828481692631333,"endHours":6.828481692631333,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:50","end":"07:50","startHours":6.828481692631333,"endHours":7.828481692631333,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:50","end":"08:50","startHours":7.828481692631333,"endHours":8.828481692631332,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:50","end":"09:50","startHours":8.828481692631332,"endHours":9.828481692631332,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:50","end":"10:50","startHours":9.828481692631332,"endHours":10.828481692631332,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:50","end":"11:50","startHours":10.828481692631332,"endHours":11.828481692631332,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:50","end":"12:50","startHours":11.828481692631332,"endHours":12.828481692631332,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:50","end":"13:50","startHours":12.828481692631332,"endHours":13.828481692631332,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:50","end":"14:50","startHours":13.828481692631332,"endHours":14.828481692631332,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:50","end":"15:50","startHours":14.828481692631332,"endHours":15.828481692631332,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:50","end":"16:50","startHours":15.828481692631332,"endHours":16.828481692631332,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:50","end":"17:50","startHours":16.828481692631332,"endHours":17.828481692631332,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:50","end":"18:50","startHours":17.828481692631332,"endHours":18.828481692631332,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:50","end":"19:50","startHours":18.828481692631332,"endHours":19.828481692631332,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:50","end":"20:50","startHours":19.828481692631332,"endHours":20.828481692631332,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:50","end":"21:50","startHours":20.828481692631332,"endHours":21.828481692631332,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:50","end":"22:50","startHours":21.828481692631332,"endHours":22.828481692631332,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:50","end":"23:50","startHours":22.828481692631332,"endHours":23.828481692631332,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:50","end":"00:50","startHours":23.828481692631332,"endHours":24.828481692631332,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:50","end":"01:50","startHours":24.828481692631332,"endHours":25.828481692631332,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:50","end":"02:50","startHours":25.828481692631332,"endHours":26.828481692631332,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:50","end":"03:50","startHours":26.828481692631332,"endHours":27.828481692631332,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:50","end":"04:50","startHours":27.828481692631332,"endHours":28.828481692631332,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:50","end":"05:50","startHours":28.828481692631332,"endHours":29.828481692631332,"planetary_lord":"Moon"}],"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","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","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":-14.55587333058418,"eotMinutes":-14.546685491524224,"ayanamsa":24.2457}},"calendars":{"vikram_samvat":2085,"vikram_samvatsara":"Durmati","saka_samvat":1950,"saka_samvatsara":"Kīlaka","bengali_samvat":1435,"malayalam_era":1204,"nanakshahi_year":559,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Pūrṇimā · Vikram 2085 Durmati · Śaka 1950 Kīlaka"},"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":"magha-purnima","name":"Māghī Pūrṇimā","name_sanskrit":"माघी पूर्णिमा","tradition":"Pan-Hindu","significance":"Sacred snāna at Prayāga; Māgha-snāna culmination.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2},{"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":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","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 10, 2028 CE · Perth, Australia · Vidhyamitra","description":"February 10, 2028 CE for Perth, Australia: Śukla Pūrṇimā, sūryodaya 05:50, sūryāsta 19:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2028-02-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2028-02-10","sa":"https://sa.vidhyamitra.com/city/perth/2028-02-10","hi":"https://hi.vidhyamitra.com/city/perth/2028-02-10","x-default":"https://vidhyamitra.com/city/perth/2028-02-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T17:10:20.378Z","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":"2026-05-14T17:10:20.378Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T17:10:20.378Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}