{"id":"vidhyamitra:city-day:perth:2124-04-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2124-04-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2124-04-17","date_display":"April 17, 2124 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":2124,"month":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2496941.770833,"kali_year":5225,"ahargana":1908476.2708,"sun":{"sidereal_longitude":1.5725,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":31.0589,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":29.4864,"elapsed_within_tithi_degrees":5.4864},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":31.0589,"elapsed_within_degrees":4.3922},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":32.6314},"karana":{"half_tithi_index":4,"name":"Taitila"},"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":2124,"month":4,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2496941.770833,"ahargana":1908476.2708,"kali_year":5225,"ayanamsa_lahiri":25.5893,"grahas":{"sun":{"sidereal_longitude":1.7343200000000252,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":32.85591999999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false,"latitude":0.6788},"mars":{"sidereal_longitude":4.567420000000027,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":332.44741999999997,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":180.24831999999992,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":26.230020000000025,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":102.56121999999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":219.7429,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":39.7429,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2124,"month":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2496941.770833,"kali_year":5225,"ahargana":1908476.2708,"sun":{"sidereal_longitude":1.5725,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":31.0589,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":29.4864,"elapsed_within_tithi_degrees":5.4864},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":31.0589,"elapsed_within_degrees":4.3922},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":32.6314},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.679,"elongation":29.486},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.679,"opposition_distance":150.514}},"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":"06:39","sunsetLocal":"17:54","solarNoonLocal":"12:16","dayLengthHours":11.247214093086827,"dayLengthDisplay":"11 Hours 14 Mins 50 Secs","nightLengthDisplay":"12 Hours 45 Mins 10 Secs","moonriseLocal":"09:10","moonsetLocal":"19:32","rahuKala":{"name":"Rāhu Kāla","start":"08:03","end":"09:28","startHours":8.053860565430275,"endHours":9.459762327066128,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:52","end":"12:16","startHours":10.865664088701983,"endHours":12.271565850337836,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:41","end":"15:05","startHours":13.67746761197369,"endHours":15.083369373609543,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:16","end":"09:39","startHours":9.272308758848016,"endHours":9.647215895284242,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:07","end":"07:25","startHours":7.116592724339706,"endHours":7.4165184334886884,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:39","startHours":11.896658713901608,"endHours":12.646472986774064,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:09","end":"05:54","startHours":5.148330258049512,"endHours":5.898144530921967,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:43","end":"06:39","startHours":5.710690962703853,"endHours":6.647958803794422,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:54","startHours":14.146101532518973,"endHours":14.895915805391429,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:42","end":"18:06","startHours":17.69517289688125,"endHours":18.095172896881248,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:54","end":"18:22","startHours":17.89517289688125,"endHours":18.363806817426532,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:39","end":"19:24","startHours":17.64517289688125,"endHours":19.39517289688125,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:39","startHours":23.89665871390161,"endHours":24.646472986774064,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:39","end":"08:03","startHours":6.647958803794422,"endHours":8.053860565430275,"quality":"auspicious"},{"name":"Kāla","start":"08:03","end":"09:28","startHours":8.053860565430275,"endHours":9.459762327066128,"quality":"inauspicious"},{"name":"Śubha","start":"09:28","end":"10:52","startHours":9.459762327066128,"endHours":10.865664088701983,"quality":"auspicious"},{"name":"Roga","start":"10:52","end":"12:16","startHours":10.865664088701983,"endHours":12.271565850337836,"quality":"inauspicious"},{"name":"Udveg","start":"12:16","end":"13:41","startHours":12.271565850337836,"endHours":13.67746761197369,"quality":"inauspicious"},{"name":"Chala","start":"13:41","end":"15:05","startHours":13.67746761197369,"endHours":15.083369373609543,"quality":"neutral"},{"name":"Labha","start":"15:05","end":"16:29","startHours":15.083369373609543,"endHours":16.489271135245396,"quality":"auspicious"},{"name":"Amṛta","start":"16:29","end":"17:54","startHours":16.489271135245396,"endHours":17.89517289688125,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:54","end":"19:29","startHours":17.89517289688125,"endHours":19.489271135245396,"quality":"neutral"},{"name":"Labha","start":"19:29","end":"21:05","startHours":19.489271135245396,"endHours":21.083369373609543,"quality":"auspicious"},{"name":"Amṛta","start":"21:05","end":"22:41","startHours":21.083369373609543,"endHours":22.67746761197369,"quality":"auspicious"},{"name":"Kāla","start":"22:41","end":"00:16","startHours":22.67746761197369,"endHours":24.271565850337836,"quality":"inauspicious"},{"name":"Śubha","start":"00:16","end":"01:52","startHours":24.271565850337836,"endHours":25.865664088701983,"quality":"auspicious"},{"name":"Roga","start":"01:52","end":"03:28","startHours":25.865664088701983,"endHours":27.45976232706613,"quality":"inauspicious"},{"name":"Udveg","start":"03:28","end":"05:03","startHours":27.45976232706613,"endHours":29.053860565430277,"quality":"inauspicious"},{"name":"Chala","start":"05:03","end":"06:39","startHours":29.053860565430277,"endHours":30.647958803794424,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:39","end":"07:39","startHours":6.647958803794422,"endHours":7.647958803794422,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:39","end":"08:39","startHours":7.647958803794422,"endHours":8.647958803794422,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:39","end":"09:39","startHours":8.647958803794422,"endHours":9.647958803794422,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:39","end":"10:39","startHours":9.647958803794422,"endHours":10.647958803794422,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:39","end":"11:39","startHours":10.647958803794422,"endHours":11.647958803794422,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:39","end":"12:39","startHours":11.647958803794422,"endHours":12.647958803794422,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:39","end":"13:39","startHours":12.647958803794422,"endHours":13.647958803794422,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:39","end":"14:39","startHours":13.647958803794422,"endHours":14.647958803794422,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:39","end":"15:39","startHours":14.647958803794422,"endHours":15.647958803794422,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:39","end":"16:39","startHours":15.647958803794422,"endHours":16.647958803794424,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:39","end":"17:39","startHours":16.647958803794424,"endHours":17.647958803794424,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:39","end":"18:39","startHours":17.647958803794424,"endHours":18.647958803794424,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:39","end":"19:39","startHours":18.647958803794424,"endHours":19.647958803794424,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:39","end":"20:39","startHours":19.647958803794424,"endHours":20.647958803794424,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:39","end":"21:39","startHours":20.647958803794424,"endHours":21.647958803794424,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:39","end":"22:39","startHours":21.647958803794424,"endHours":22.647958803794424,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:39","end":"23:39","startHours":22.647958803794424,"endHours":23.647958803794424,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:39","end":"00:39","startHours":23.647958803794424,"endHours":24.647958803794424,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:39","end":"01:39","startHours":24.647958803794424,"endHours":25.647958803794424,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:39","end":"02:39","startHours":25.647958803794424,"endHours":26.647958803794424,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:39","end":"03:39","startHours":26.647958803794424,"endHours":27.647958803794424,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:39","end":"04:39","startHours":27.647958803794424,"endHours":28.647958803794424,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:39","end":"05:39","startHours":28.647958803794424,"endHours":29.647958803794424,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:39","end":"06:39","startHours":29.647958803794424,"endHours":30.647958803794424,"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":10.519228825446364,"eotMinutes":0.2640489797298191,"ayanamsa":25.5893}},"calendars":{"vikram_samvat":2181,"vikram_samvatsara":"Hemalambī","saka_samvat":2046,"saka_samvatsara":"Tāraṇa","bengali_samvat":1531,"malayalam_era":1300,"nanakshahi_year":655,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Tṛtīyā · Vikram 2181 Hemalambī · Śaka 2046 Tāraṇa"},"festivals":[{"id":"matsya-jayanti","name":"Matsya Jayantī","name_sanskrit":"मत्स्य जयन्ती","tradition":"Vaishnava","associated_deity":"Matsya (1st daśāvatāra of Krishna)","deity_avatara_index":10,"significance":"Matsya saved Vaivasvata Manu and the Vedas during the cosmic deluge.","vrata":false,"detection":{"tithi_number":3,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":4,"sources":["Bhāgavata 8.24","Matsya Purāṇa 1-2"]}],"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":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","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 April 17, 2124 CE · Perth, Australia · Vidhyamitra","description":"April 17, 2124 CE for Perth, Australia: Śukla Tṛtīyā, sūryodaya 06:39, sūryāsta 17:54.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2124-04-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2124-04-17","sa":"https://sa.vidhyamitra.com/city/perth/2124-04-17","hi":"https://hi.vidhyamitra.com/city/perth/2124-04-17","x-default":"https://vidhyamitra.com/city/perth/2124-04-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T16:43:59.327Z","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":"2026-05-31T16:43:59.327Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T16:43:59.327Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}