{"id":"vidhyamitra:city-day:perth:2103-04-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2103-04-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2103-04-10","date_display":"April 10, 2103 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":2103,"month":4,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489263.770833,"kali_year":5204,"ahargana":1900798.2708,"sun":{"sidereal_longitude":354.173,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":33.6395,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":39.4665,"elapsed_within_tithi_degrees":3.4665},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":33.6395,"elapsed_within_degrees":6.9729},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":27.8126},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2103,"month":4,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2489263.770833,"ahargana":1900798.2708,"kali_year":5204,"ayanamsa_lahiri":25.2956,"grahas":{"sun":{"sidereal_longitude":354.261776,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":33.73037599999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false,"latitude":3.5888},"mars":{"sidereal_longitude":317.430976,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":356.947776,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":269.31437600000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":35.561576,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":214.92537600000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":266.5603,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":86.5603,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":2103,"month":4,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489263.770833,"kali_year":5204,"ahargana":1900798.2708,"sun":{"sidereal_longitude":354.173,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":33.6395,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":39.4665,"elapsed_within_tithi_degrees":3.4665},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":33.6395,"elapsed_within_degrees":6.9729},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":27.8126},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.589,"elongation":39.467},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.589,"opposition_distance":140.533}},"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":"06:33","sunsetLocal":"18:03","solarNoonLocal":"12:18","dayLengthHours":11.491646271748948,"dayLengthDisplay":"11 Hours 29 Mins 30 Secs","nightLengthDisplay":"12 Hours 30 Mins 30 Secs","moonriseLocal":"09:45","moonsetLocal":"20:07","rahuKala":{"name":"Rāhu Kāla","start":"15:11","end":"16:37","startHours":15.175662494023321,"endHours":16.61211827799194,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:26","end":"10:52","startHours":9.429839358148847,"endHours":10.866295142117465,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:18","end":"13:44","startHours":12.302750926086084,"endHours":13.739206710054702,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:14","end":"09:37","startHours":9.238311920286364,"endHours":9.621366796011328,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:02","end":"07:21","startHours":7.0357463848678155,"endHours":7.342190285447788,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:41","startHours":11.91969605036112,"endHours":12.685805801811048,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:01","end":"05:47","startHours":5.024708287311749,"endHours":5.790818038761679,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:36","end":"06:33","startHours":5.599290600899197,"endHours":6.556927790211609,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:13","end":"14:59","startHours":14.218025304710908,"endHours":14.984135056160838,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:51","end":"18:15","startHours":17.84857406196056,"endHours":18.248574061960557,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:03","end":"18:32","startHours":18.048574061960558,"endHours":18.527392656616765,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:48","end":"19:33","startHours":17.798574061960558,"endHours":19.548574061960558,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:41","startHours":23.919696050361118,"endHours":24.68580580181105,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:33","end":"08:00","startHours":6.556927790211609,"endHours":7.9933835741802275,"quality":"inauspicious"},{"name":"Udveg","start":"08:00","end":"09:26","startHours":7.9933835741802275,"endHours":9.429839358148847,"quality":"inauspicious"},{"name":"Chala","start":"09:26","end":"10:52","startHours":9.429839358148847,"endHours":10.866295142117465,"quality":"neutral"},{"name":"Labha","start":"10:52","end":"12:18","startHours":10.866295142117465,"endHours":12.302750926086084,"quality":"auspicious"},{"name":"Amṛta","start":"12:18","end":"13:44","startHours":12.302750926086084,"endHours":13.739206710054702,"quality":"auspicious"},{"name":"Kāla","start":"13:44","end":"15:11","startHours":13.739206710054702,"endHours":15.175662494023321,"quality":"inauspicious"},{"name":"Śubha","start":"15:11","end":"16:37","startHours":15.175662494023321,"endHours":16.61211827799194,"quality":"auspicious"},{"name":"Roga","start":"16:37","end":"18:03","startHours":16.61211827799194,"endHours":18.048574061960558,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:03","end":"19:37","startHours":18.048574061960558,"endHours":19.61211827799194,"quality":"inauspicious"},{"name":"Śubha","start":"19:37","end":"21:11","startHours":19.61211827799194,"endHours":21.17566249402332,"quality":"auspicious"},{"name":"Roga","start":"21:11","end":"22:44","startHours":21.17566249402332,"endHours":22.739206710054702,"quality":"inauspicious"},{"name":"Udveg","start":"22:44","end":"00:18","startHours":22.739206710054702,"endHours":24.302750926086084,"quality":"inauspicious"},{"name":"Chala","start":"00:18","end":"01:52","startHours":24.302750926086084,"endHours":25.866295142117465,"quality":"neutral"},{"name":"Labha","start":"01:52","end":"03:26","startHours":25.866295142117465,"endHours":27.429839358148847,"quality":"auspicious"},{"name":"Amṛta","start":"03:26","end":"05:00","startHours":27.429839358148847,"endHours":28.99338357418023,"quality":"auspicious"},{"name":"Kāla","start":"05:00","end":"06:33","startHours":28.99338357418023,"endHours":30.55692779021161,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:33","end":"07:33","startHours":6.556927790211609,"endHours":7.556927790211609,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:33","end":"08:33","startHours":7.556927790211609,"endHours":8.55692779021161,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:33","end":"09:33","startHours":8.55692779021161,"endHours":9.55692779021161,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:33","end":"10:33","startHours":9.55692779021161,"endHours":10.55692779021161,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:33","end":"11:33","startHours":10.55692779021161,"endHours":11.55692779021161,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:33","end":"12:33","startHours":11.55692779021161,"endHours":12.55692779021161,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:33","end":"13:33","startHours":12.55692779021161,"endHours":13.55692779021161,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:33","end":"14:33","startHours":13.55692779021161,"endHours":14.55692779021161,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:33","end":"15:33","startHours":14.55692779021161,"endHours":15.55692779021161,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:33","end":"16:33","startHours":15.55692779021161,"endHours":16.55692779021161,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:33","end":"17:33","startHours":16.55692779021161,"endHours":17.55692779021161,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:33","end":"18:33","startHours":17.55692779021161,"endHours":18.55692779021161,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:33","end":"19:33","startHours":18.55692779021161,"endHours":19.55692779021161,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:33","end":"20:33","startHours":19.55692779021161,"endHours":20.55692779021161,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:33","end":"21:33","startHours":20.55692779021161,"endHours":21.55692779021161,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:33","end":"22:33","startHours":21.55692779021161,"endHours":22.55692779021161,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:33","end":"23:33","startHours":22.55692779021161,"endHours":23.55692779021161,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:33","end":"00:33","startHours":23.55692779021161,"endHours":24.55692779021161,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:33","end":"01:33","startHours":24.55692779021161,"endHours":25.55692779021161,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:33","end":"02:33","startHours":25.55692779021161,"endHours":26.55692779021161,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:33","end":"03:33","startHours":26.55692779021161,"endHours":27.55692779021161,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:33","end":"04:33","startHours":27.55692779021161,"endHours":28.55692779021161,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:33","end":"05:33","startHours":28.55692779021161,"endHours":29.55692779021161,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:33","end":"06:33","startHours":29.55692779021161,"endHours":30.55692779021161,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":7.651148262675426,"eotMinutes":-1.6070555651651,"ayanamsa":25.2956}},"calendars":{"vikram_samvat":2160,"vikram_samvatsara":"Dhātṛ","saka_samvat":2025,"saka_samvatsara":"Rudhirodgāri","bengali_samvat":1510,"malayalam_era":1279,"nanakshahi_year":634,"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":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Caturthī · Vikram 2160 Dhātṛ · Śaka 2025 Rudhirodgāri"},"festivals":[{"id":"angarika-chaturthi","name":"Aṅgāraka Caturthī (Tuesday Caturthī)","name_sanskrit":"अङ्गारक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa + Maṅgala","significance":"Tuesday-Caturthī (rare); supremely auspicious for Maṅgala-doṣa-nivāraṇa.","vrata":true,"detection":{"any_of":[{"tithi_number":4,"vara_name":"Maṅgalavāra (Tuesday)"},{"tithi_number":19,"vara_name":"Maṅgalavāra (Tuesday)"}]},"precedence":3},{"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":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 10, 2103 CE · Perth, Australia · Vidhyamitra","description":"April 10, 2103 CE for Perth, Australia: Śukla Caturthī, sūryodaya 06:33, sūryāsta 18:03.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2103-04-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2103-04-10","sa":"https://sa.vidhyamitra.com/city/perth/2103-04-10","hi":"https://hi.vidhyamitra.com/city/perth/2103-04-10","x-default":"https://vidhyamitra.com/city/perth/2103-04-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:29:24.439Z","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":"2026-05-31T18:29:24.439Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:29:24.439Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}