{"id":"vidhyamitra:city-day:perth:2102-01-22:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2102-01-22","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2102-01-22","date_display":"January 22, 2102 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":2102,"month":1,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488820.770833,"kali_year":5203,"ahargana":1900355.2708,"sun":{"sidereal_longitude":275.97,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":314.9892,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":39.0192,"elapsed_within_tithi_degrees":3.0192},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3,"moon_longitude":314.9892,"elapsed_within_degrees":8.3225},"yoga":{"number":18,"name":"Varīyān","sum_longitude":230.9592},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2102,"month":1,"day":22,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488820.770833,"ahargana":1900355.2708,"kali_year":5203,"ayanamsa_lahiri":25.2787,"grahas":{"sun":{"sidereal_longitude":276.27910199999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":316.6806019999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false,"latitude":1.8971},"mars":{"sidereal_longitude":44.84580199999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":251.797502,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":229.99810200000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":234.373202,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":202.83570200000008,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":290.0326,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":110.0326,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":2102,"month":1,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488820.770833,"kali_year":5203,"ahargana":1900355.2708,"sun":{"sidereal_longitude":275.97,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":314.9892,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":39.0192,"elapsed_within_tithi_degrees":3.0192},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3,"moon_longitude":314.9892,"elapsed_within_degrees":8.3225},"yoga":{"number":18,"name":"Varīyān","sum_longitude":230.9592},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.897,"elongation":39.019},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.897,"opposition_distance":140.981}},"eclipse_window_40days":[{"offset_days":-3,"type":"solar","occurs":true,"moon_latitude":-1.366,"elongation":0.393},{"offset_days":12,"type":"lunar","occurs":true,"moon_latitude":0.307,"opposition_distance":2.772}]},"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":"05:32","sunsetLocal":"19:24","solarNoonLocal":"12:28","dayLengthHours":13.874188204826455,"dayLengthDisplay":"13 Hours 52 Mins 27 Secs","nightLengthDisplay":"10 Hours 07 Mins 33 Secs","moonriseLocal":"08:49","moonsetLocal":"21:30","rahuKala":{"name":"Rāhu Kāla","start":"17:40","end":"19:24","startHours":17.67105563194891,"endHours":19.405329157552217,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:28","end":"14:12","startHours":12.46823505513899,"endHours":14.202508580742297,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:56","end":"17:40","startHours":15.936782106345603,"endHours":17.67105563194891,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:46","end":"09:14","startHours":8.768451533851934,"endHours":9.230924474012816,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:07","end":"06:29","startHours":6.109232127926864,"endHours":6.47921048005557,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:56","startHours":12.005762114978106,"endHours":12.930707995299871,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:41","end":"04:36","startHours":3.681249192082235,"endHours":4.606195072403999,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:22","end":"05:32","startHours":4.374958602323558,"endHours":5.531140952725762,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:42","startHours":14.780599755943397,"endHours":15.70554563626516,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:12","end":"19:36","startHours":19.205329157552217,"endHours":19.605329157552216,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:24","end":"19:59","startHours":19.405329157552217,"endHours":19.98342033275332,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:09","end":"20:54","startHours":19.155329157552217,"endHours":20.905329157552217,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:56","startHours":24.005762114978108,"endHours":24.930707995299873,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:32","end":"07:16","startHours":5.531140952725762,"endHours":7.265414478329069,"quality":"inauspicious"},{"name":"Chala","start":"07:16","end":"09:00","startHours":7.265414478329069,"endHours":8.999688003932375,"quality":"neutral"},{"name":"Labha","start":"09:00","end":"10:44","startHours":8.999688003932375,"endHours":10.733961529535684,"quality":"auspicious"},{"name":"Amṛta","start":"10:44","end":"12:28","startHours":10.733961529535684,"endHours":12.46823505513899,"quality":"auspicious"},{"name":"Kāla","start":"12:28","end":"14:12","startHours":12.46823505513899,"endHours":14.202508580742297,"quality":"inauspicious"},{"name":"Śubha","start":"14:12","end":"15:56","startHours":14.202508580742297,"endHours":15.936782106345603,"quality":"auspicious"},{"name":"Roga","start":"15:56","end":"17:40","startHours":15.936782106345603,"endHours":17.67105563194891,"quality":"inauspicious"},{"name":"Udveg","start":"17:40","end":"19:24","startHours":17.67105563194891,"endHours":19.405329157552217,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:24","end":"20:40","startHours":19.405329157552217,"endHours":20.67105563194891,"quality":"auspicious"},{"name":"Roga","start":"20:40","end":"21:56","startHours":20.67105563194891,"endHours":21.936782106345603,"quality":"inauspicious"},{"name":"Udveg","start":"21:56","end":"23:12","startHours":21.936782106345603,"endHours":23.202508580742297,"quality":"inauspicious"},{"name":"Chala","start":"23:12","end":"00:28","startHours":23.202508580742297,"endHours":24.46823505513899,"quality":"neutral"},{"name":"Labha","start":"00:28","end":"01:44","startHours":24.46823505513899,"endHours":25.733961529535684,"quality":"auspicious"},{"name":"Amṛta","start":"01:44","end":"03:00","startHours":25.733961529535684,"endHours":26.999688003932377,"quality":"auspicious"},{"name":"Kāla","start":"03:00","end":"04:16","startHours":26.999688003932377,"endHours":28.26541447832907,"quality":"inauspicious"},{"name":"Śubha","start":"04:16","end":"05:32","startHours":28.26541447832907,"endHours":29.531140952725764,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:32","end":"06:32","startHours":5.531140952725762,"endHours":6.531140952725762,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:32","end":"07:32","startHours":6.531140952725762,"endHours":7.531140952725762,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:32","end":"08:32","startHours":7.531140952725762,"endHours":8.531140952725762,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:32","end":"09:32","startHours":8.531140952725762,"endHours":9.531140952725762,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:32","end":"10:32","startHours":9.531140952725762,"endHours":10.531140952725762,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:32","end":"11:32","startHours":10.531140952725762,"endHours":11.531140952725762,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:32","end":"12:32","startHours":11.531140952725762,"endHours":12.531140952725762,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:32","end":"13:32","startHours":12.531140952725762,"endHours":13.531140952725762,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:32","end":"14:32","startHours":13.531140952725762,"endHours":14.531140952725762,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:32","end":"15:32","startHours":14.531140952725762,"endHours":15.531140952725762,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:32","end":"16:32","startHours":15.531140952725762,"endHours":16.531140952725764,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:32","end":"17:32","startHours":16.531140952725764,"endHours":17.531140952725764,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:32","end":"18:32","startHours":17.531140952725764,"endHours":18.531140952725764,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:32","end":"19:32","startHours":18.531140952725764,"endHours":19.531140952725764,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:32","end":"20:32","startHours":19.531140952725764,"endHours":20.531140952725764,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:32","end":"21:32","startHours":20.531140952725764,"endHours":21.531140952725764,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:32","end":"22:32","startHours":21.531140952725764,"endHours":22.531140952725764,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:32","end":"23:32","startHours":22.531140952725764,"endHours":23.531140952725764,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:32","end":"00:32","startHours":23.531140952725764,"endHours":24.531140952725764,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:32","end":"01:32","startHours":24.531140952725764,"endHours":25.531140952725764,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:32","end":"02:32","startHours":25.531140952725764,"endHours":26.531140952725764,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:32","end":"03:32","startHours":26.531140952725764,"endHours":27.531140952725764,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:32","end":"04:32","startHours":27.531140952725764,"endHours":28.531140952725764,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:32","end":"05:32","startHours":28.531140952725764,"endHours":29.531140952725764,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Mātaṇga","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":-19.810652726902944,"eotMinutes":-11.536103308339323,"ayanamsa":25.2787}},"calendars":{"vikram_samvat":2159,"vikram_samvatsara":"Yuva","saka_samvat":2024,"saka_samvatsara":"Dundubhi","bengali_samvat":1509,"malayalam_era":1278,"nanakshahi_year":633,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Caturthī · Vikram 2159 Yuva · Śaka 2024 Dundubhi"},"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},{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 January 22, 2102 CE · Perth, Australia · Vidhyamitra","description":"January 22, 2102 CE for Perth, Australia: Śukla Caturthī, sūryodaya 05:32, sūryāsta 19:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2102-01-22","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2102-01-22","sa":"https://sa.vidhyamitra.com/city/perth/2102-01-22","hi":"https://hi.vidhyamitra.com/city/perth/2102-01-22","x-default":"https://vidhyamitra.com/city/perth/2102-01-22"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T22:26:19.036Z","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":"2026-05-21T22:26:19.036Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T22:26:19.036Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}