{"id":"vidhyamitra:city-day:perth:2121-04-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2121-04-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2121-04-27","date_display":"April 27, 2121 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":2121,"month":4,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2495855.770833,"kali_year":5223,"ahargana":1907390.2708,"sun":{"sidereal_longitude":11.0781,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":125.5735,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":114.4954,"elapsed_within_tithi_degrees":6.4954},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":125.5735,"elapsed_within_degrees":5.5735},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":136.6515},"karana":{"half_tithi_index":19,"name":"Gara"},"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":2121,"month":4,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2495855.770833,"ahargana":1907390.2708,"kali_year":5223,"ayanamsa_lahiri":25.5477,"grahas":{"sun":{"sidereal_longitude":11.273113000000023,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":127.19541300000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false,"latitude":-2.1309},"mars":{"sidereal_longitude":110.37031300000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":29.28071299999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":85.192813,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"venus":{"sidereal_longitude":323.63971300000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":63.50971300000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":277.2844,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":97.2844,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":2121,"month":4,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2495855.770833,"kali_year":5223,"ahargana":1907390.2708,"sun":{"sidereal_longitude":11.0781,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":125.5735,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":114.4954,"elapsed_within_tithi_degrees":6.4954},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":125.5735,"elapsed_within_degrees":5.5735},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":136.6515},"karana":{"half_tithi_index":19,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.131,"elongation":114.495},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.131,"opposition_distance":65.505}},"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":"06:45","sunsetLocal":"17:43","solarNoonLocal":"12:14","dayLengthHours":10.962186730840415,"dayLengthDisplay":"10 Hours 57 Mins 44 Secs","nightLengthDisplay":"13 Hours 02 Mins 16 Secs","moonriseLocal":"14:22","moonsetLocal":"01:34","rahuKala":{"name":"Rāhu Kāla","start":"16:21","end":"17:43","startHours":16.347918876571683,"endHours":17.718192217926735,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:14","end":"13:36","startHours":12.237098852506527,"endHours":13.607372193861579,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:59","end":"16:21","startHours":14.977645535216631,"endHours":16.347918876571683,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:19","end":"09:41","startHours":9.31384905761575,"endHours":9.679255281977097,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:13","end":"07:30","startHours":7.212763267538004,"endHours":7.505088247027082,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:36","startHours":11.87169262814518,"endHours":12.602505076867875,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:18","end":"06:02","startHours":5.294380589640931,"endHours":6.025193038363625,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:51","end":"06:45","startHours":5.842489926182952,"endHours":6.75600548708632,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:04","end":"14:48","startHours":14.064129974313264,"endHours":14.794942423035959,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:31","end":"17:55","startHours":17.518192217926735,"endHours":17.918192217926734,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:43","end":"18:10","startHours":17.718192217926735,"endHours":18.17494999837842,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:28","end":"19:13","startHours":17.468192217926735,"endHours":19.218192217926735,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:36","startHours":23.87169262814518,"endHours":24.602505076867875,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:45","end":"08:08","startHours":6.75600548708632,"endHours":8.126278828441372,"quality":"inauspicious"},{"name":"Chala","start":"08:08","end":"09:30","startHours":8.126278828441372,"endHours":9.496552169796423,"quality":"neutral"},{"name":"Labha","start":"09:30","end":"10:52","startHours":9.496552169796423,"endHours":10.866825511151475,"quality":"auspicious"},{"name":"Amṛta","start":"10:52","end":"12:14","startHours":10.866825511151475,"endHours":12.237098852506527,"quality":"auspicious"},{"name":"Kāla","start":"12:14","end":"13:36","startHours":12.237098852506527,"endHours":13.607372193861579,"quality":"inauspicious"},{"name":"Śubha","start":"13:36","end":"14:59","startHours":13.607372193861579,"endHours":14.977645535216631,"quality":"auspicious"},{"name":"Roga","start":"14:59","end":"16:21","startHours":14.977645535216631,"endHours":16.347918876571683,"quality":"inauspicious"},{"name":"Udveg","start":"16:21","end":"17:43","startHours":16.347918876571683,"endHours":17.718192217926735,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:43","end":"19:21","startHours":17.718192217926735,"endHours":19.347918876571683,"quality":"auspicious"},{"name":"Roga","start":"19:21","end":"20:59","startHours":19.347918876571683,"endHours":20.97764553521663,"quality":"inauspicious"},{"name":"Udveg","start":"20:59","end":"22:36","startHours":20.97764553521663,"endHours":22.60737219386158,"quality":"inauspicious"},{"name":"Chala","start":"22:36","end":"00:14","startHours":22.60737219386158,"endHours":24.237098852506527,"quality":"neutral"},{"name":"Labha","start":"00:14","end":"01:52","startHours":24.237098852506527,"endHours":25.866825511151475,"quality":"auspicious"},{"name":"Amṛta","start":"01:52","end":"03:30","startHours":25.866825511151475,"endHours":27.496552169796423,"quality":"auspicious"},{"name":"Kāla","start":"03:30","end":"05:08","startHours":27.496552169796423,"endHours":29.12627882844137,"quality":"inauspicious"},{"name":"Śubha","start":"05:08","end":"06:45","startHours":29.12627882844137,"endHours":30.75600548708632,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:45","end":"07:45","startHours":6.75600548708632,"endHours":7.75600548708632,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:45","end":"08:45","startHours":7.75600548708632,"endHours":8.75600548708632,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:45","end":"09:45","startHours":8.75600548708632,"endHours":9.75600548708632,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:45","end":"10:45","startHours":9.75600548708632,"endHours":10.75600548708632,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:45","end":"11:45","startHours":10.75600548708632,"endHours":11.75600548708632,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:45","end":"12:45","startHours":11.75600548708632,"endHours":12.75600548708632,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:45","end":"13:45","startHours":12.75600548708632,"endHours":13.75600548708632,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:45","end":"14:45","startHours":13.75600548708632,"endHours":14.75600548708632,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:45","end":"15:45","startHours":14.75600548708632,"endHours":15.75600548708632,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:45","end":"16:45","startHours":15.75600548708632,"endHours":16.75600548708632,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:45","end":"17:45","startHours":16.75600548708632,"endHours":17.75600548708632,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:45","end":"18:45","startHours":17.75600548708632,"endHours":18.75600548708632,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:45","end":"19:45","startHours":18.75600548708632,"endHours":19.75600548708632,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:45","end":"20:45","startHours":19.75600548708632,"endHours":20.75600548708632,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:45","end":"21:45","startHours":20.75600548708632,"endHours":21.75600548708632,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:45","end":"22:45","startHours":21.75600548708632,"endHours":22.75600548708632,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:45","end":"23:45","startHours":22.75600548708632,"endHours":23.75600548708632,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:45","end":"00:45","startHours":23.75600548708632,"endHours":24.75600548708632,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:45","end":"01:45","startHours":24.75600548708632,"endHours":25.75600548708632,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:45","end":"02:45","startHours":25.75600548708632,"endHours":26.75600548708632,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:45","end":"03:45","startHours":26.75600548708632,"endHours":27.75600548708632,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:45","end":"04:45","startHours":27.75600548708632,"endHours":28.75600548708632,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:45","end":"05:45","startHours":28.75600548708632,"endHours":29.75600548708632,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:45","end":"06:45","startHours":29.75600548708632,"endHours":30.75600548708632,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":13.790167773992557,"eotMinutes":2.332068849608316,"ayanamsa":25.5477}},"calendars":{"vikram_samvat":2178,"vikram_samvatsara":"Jaya","saka_samvat":2043,"saka_samvatsara":"Vṛṣa","bengali_samvat":1528,"malayalam_era":1297,"nanakshahi_year":652,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha (Adhika) Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":true,"lunar_month_purnimanta_is_adhika":true,"lunar_month_amanta_is_adhika":true,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha (Adhika) Śukla Daśamī · Vikram 2178 Jaya · Śaka 2043 Vṛṣa"},"festivals":[],"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 April 27, 2121 CE · Perth, Australia · Vidhyamitra","description":"April 27, 2121 CE for Perth, Australia: Śukla Daśamī, sūryodaya 06:45, sūryāsta 17:43.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2121-04-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2121-04-27","sa":"https://sa.vidhyamitra.com/city/perth/2121-04-27","hi":"https://hi.vidhyamitra.com/city/perth/2121-04-27","x-default":"https://vidhyamitra.com/city/perth/2121-04-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T18:30:24.030Z","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":"2026-06-02T18:30:24.030Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T18:30:24.030Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}