{"id":"vidhyamitra:city-day:perth:2015-01-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2015-01-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2015-01-23","date_display":"January 23, 2015 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":2015,"month":1,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457045.770833,"kali_year":5116,"ahargana":1868580.2708,"sun":{"sidereal_longitude":278.5456,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":310.4838,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":31.9382,"elapsed_within_tithi_degrees":7.9382},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":310.4838,"elapsed_within_degrees":3.8171},"yoga":{"number":18,"name":"Varīyān","sum_longitude":229.0294},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2015,"month":1,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457045.770833,"ahargana":1868580.2708,"kali_year":5116,"ayanamsa_lahiri":24.0634,"grahas":{"sun":{"sidereal_longitude":278.63213999999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":313.52904,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false,"latitude":3.0754},"mars":{"sidereal_longitude":313.97974,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":292.67874000000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":114.69204000000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":300.01764000000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":218.54614000000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":173.625,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":353.625,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":2015,"month":1,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457045.770833,"kali_year":5116,"ahargana":1868580.2708,"sun":{"sidereal_longitude":278.5456,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":310.4838,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":31.9382,"elapsed_within_tithi_degrees":7.9382},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":310.4838,"elapsed_within_degrees":3.8171},"yoga":{"number":18,"name":"Varīyān","sum_longitude":229.0294},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.075,"elongation":31.938},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.075,"opposition_distance":148.062}},"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":"05:33","sunsetLocal":"19:24","solarNoonLocal":"12:28","dayLengthHours":13.849257802721038,"dayLengthDisplay":"13 Hours 50 Mins 57 Secs","nightLengthDisplay":"10 Hours 09 Mins 03 Secs","moonriseLocal":"08:23","moonsetLocal":"21:13","rahuKala":{"name":"Rāhu Kāla","start":"10:44","end":"12:28","startHours":10.7415627343285,"endHours":12.47271995966863,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:56","end":"17:40","startHours":15.935034410348887,"endHours":17.666191635689017,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:17","end":"09:01","startHours":7.27924828364824,"endHours":9.01040550898837,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:47","end":"09:14","startHours":8.779584545609687,"endHours":9.241226472367053,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:08","end":"06:30","startHours":6.125143466754821,"endHours":6.494457008160715,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:56","startHours":12.01107803291126,"endHours":12.934361886425997,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:42","end":"04:37","startHours":3.701523351278639,"endHours":4.624807204793375,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:24","end":"05:33","startHours":4.393986241414691,"endHours":5.548091058308111,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:42","startHours":14.780929593455468,"endHours":15.704213446970204,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:12","end":"19:36","startHours":19.19734886102915,"endHours":19.597348861029147,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:24","end":"19:58","startHours":19.397348861029148,"endHours":19.97440126947586,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:09","end":"20:54","startHours":19.147348861029148,"endHours":20.897348861029148,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:56","startHours":24.011078032911264,"endHours":24.934361886425997,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:33","end":"07:17","startHours":5.548091058308111,"endHours":7.27924828364824,"quality":"neutral"},{"name":"Labha","start":"07:17","end":"09:01","startHours":7.27924828364824,"endHours":9.01040550898837,"quality":"auspicious"},{"name":"Amṛta","start":"09:01","end":"10:44","startHours":9.01040550898837,"endHours":10.7415627343285,"quality":"auspicious"},{"name":"Kāla","start":"10:44","end":"12:28","startHours":10.7415627343285,"endHours":12.47271995966863,"quality":"inauspicious"},{"name":"Śubha","start":"12:28","end":"14:12","startHours":12.47271995966863,"endHours":14.20387718500876,"quality":"auspicious"},{"name":"Roga","start":"14:12","end":"15:56","startHours":14.20387718500876,"endHours":15.935034410348887,"quality":"inauspicious"},{"name":"Udveg","start":"15:56","end":"17:40","startHours":15.935034410348887,"endHours":17.666191635689017,"quality":"inauspicious"},{"name":"Chala","start":"17:40","end":"19:24","startHours":17.666191635689017,"endHours":19.397348861029148,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:24","end":"20:40","startHours":19.397348861029148,"endHours":20.666191635689017,"quality":"inauspicious"},{"name":"Udveg","start":"20:40","end":"21:56","startHours":20.666191635689017,"endHours":21.935034410348887,"quality":"inauspicious"},{"name":"Chala","start":"21:56","end":"23:12","startHours":21.935034410348887,"endHours":23.203877185008757,"quality":"neutral"},{"name":"Labha","start":"23:12","end":"00:28","startHours":23.203877185008757,"endHours":24.47271995966863,"quality":"auspicious"},{"name":"Amṛta","start":"00:28","end":"01:44","startHours":24.47271995966863,"endHours":25.741562734328497,"quality":"auspicious"},{"name":"Kāla","start":"01:44","end":"03:01","startHours":25.741562734328497,"endHours":27.01040550898837,"quality":"inauspicious"},{"name":"Śubha","start":"03:01","end":"04:17","startHours":27.01040550898837,"endHours":28.27924828364824,"quality":"auspicious"},{"name":"Roga","start":"04:17","end":"05:33","startHours":28.27924828364824,"endHours":29.54809105830811,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:33","end":"06:33","startHours":5.548091058308111,"endHours":6.548091058308111,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:33","end":"07:33","startHours":6.548091058308111,"endHours":7.548091058308111,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:33","end":"08:33","startHours":7.548091058308111,"endHours":8.54809105830811,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:33","end":"09:33","startHours":8.54809105830811,"endHours":9.54809105830811,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:33","end":"10:33","startHours":9.54809105830811,"endHours":10.54809105830811,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:33","end":"11:33","startHours":10.54809105830811,"endHours":11.54809105830811,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:33","end":"12:33","startHours":11.54809105830811,"endHours":12.54809105830811,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:33","end":"13:33","startHours":12.54809105830811,"endHours":13.54809105830811,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:33","end":"14:33","startHours":13.54809105830811,"endHours":14.54809105830811,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:33","end":"15:33","startHours":14.54809105830811,"endHours":15.54809105830811,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:33","end":"16:33","startHours":15.54809105830811,"endHours":16.54809105830811,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:33","end":"17:33","startHours":16.54809105830811,"endHours":17.54809105830811,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:33","end":"18:33","startHours":17.54809105830811,"endHours":18.54809105830811,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:33","end":"19:33","startHours":18.54809105830811,"endHours":19.54809105830811,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:33","end":"20:33","startHours":19.54809105830811,"endHours":20.54809105830811,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:33","end":"21:33","startHours":20.54809105830811,"endHours":21.54809105830811,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:33","end":"22:33","startHours":21.54809105830811,"endHours":22.54809105830811,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:33","end":"23:33","startHours":22.54809105830811,"endHours":23.54809105830811,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:33","end":"00:33","startHours":23.54809105830811,"endHours":24.54809105830811,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:33","end":"01:33","startHours":24.54809105830811,"endHours":25.54809105830811,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:33","end":"02:33","startHours":25.54809105830811,"endHours":26.54809105830811,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:33","end":"03:33","startHours":26.54809105830811,"endHours":27.54809105830811,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:33","end":"04:33","startHours":27.54809105830811,"endHours":28.54809105830811,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:33","end":"05:33","startHours":28.54809105830811,"endHours":29.54809105830811,"planetary_lord":"Mars"}],"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":"South-East","anandadiYoga":{"name":"Utpāta","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":-19.555079234965472,"eotMinutes":-11.805197580117738,"ayanamsa":24.0634}},"calendars":{"vikram_samvat":2072,"vikram_samvatsara":"Kīlaka","saka_samvat":1937,"saka_samvatsara":"Manmatha","bengali_samvat":1422,"malayalam_era":1191,"nanakshahi_year":546,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Tṛtīyā · Vikram 2072 Kīlaka · Śaka 1937 Manmatha"},"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":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 23, 2015 CE · Perth, Australia · Vidhyamitra","description":"January 23, 2015 CE for Perth, Australia: Śukla Tṛtīyā, sūryodaya 05:33, sūryāsta 19:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2015-01-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2015-01-23","sa":"https://sa.vidhyamitra.com/city/perth/2015-01-23","hi":"https://hi.vidhyamitra.com/city/perth/2015-01-23","x-default":"https://vidhyamitra.com/city/perth/2015-01-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T15:20:06.702Z","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":"2026-05-15T15:20:06.702Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T15:20:06.702Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}