{"id":"vidhyamitra:city-day:perth:2137-04-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2137-04-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2137-04-16","date_display":"April 16, 2137 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":2137,"month":4,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2501688.770833,"kali_year":5238,"ahargana":1913223.2708,"sun":{"sidereal_longitude":0.2415,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":307.9391,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":307.6975,"elapsed_within_tithi_degrees":7.6975},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":307.9391,"elapsed_within_degrees":1.2724},"yoga":{"number":24,"name":"Śukla","sum_longitude":308.1806},"karana":{"half_tithi_index":51,"name":"Bālava"},"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":2137,"month":4,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2501688.770833,"ahargana":1913223.2708,"kali_year":5238,"ayanamsa_lahiri":25.7708,"grahas":{"sun":{"sidereal_longitude":0.4283500000000231,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":308.50704999999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false,"latitude":-1.5587},"mars":{"sidereal_longitude":341.80055,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":331.32155,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":218.09474999999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":313.06105,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":267.21645,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":328.224,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":148.224,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"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":2137,"month":4,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2501688.770833,"kali_year":5238,"ahargana":1913223.2708,"sun":{"sidereal_longitude":0.2415,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":307.9391,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":307.6975,"elapsed_within_tithi_degrees":7.6975},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":307.9391,"elapsed_within_degrees":1.2724},"yoga":{"number":24,"name":"Śukla","sum_longitude":308.1806},"karana":{"half_tithi_index":51,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.559,"elongation":52.302},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.559,"opposition_distance":127.698}},"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":"06:38","sunsetLocal":"17:55","solarNoonLocal":"12:17","dayLengthHours":11.28207455054806,"dayLengthDisplay":"11 Hours 16 Mins 55 Secs","nightLengthDisplay":"12 Hours 43 Mins 05 Secs","moonriseLocal":"02:21","moonsetLocal":"15:17","rahuKala":{"name":"Rāhu Kāla","start":"15:06","end":"16:30","startHours":15.096230452360373,"endHours":16.50648977117888,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:27","end":"10:52","startHours":9.455193177086343,"endHours":10.86545249590485,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:17","end":"13:41","startHours":12.275711814723358,"endHours":13.685971133541866,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:16","end":"09:39","startHours":9.267158601243874,"endHours":9.64322775292881,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:06","end":"07:24","startHours":7.104760979055498,"endHours":7.405616300403446,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:39","startHours":11.899642663038422,"endHours":12.651780966408294,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:08","end":"05:53","startHours":5.130397932709587,"endHours":5.882536236079457,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:42","end":"06:38","startHours":5.69450166023699,"endHours":6.634674539449328,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:54","startHours":14.156057573148034,"endHours":14.908195876517905,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:43","end":"18:07","startHours":17.71674908999739,"endHours":18.116749089997388,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:55","end":"18:23","startHours":17.91674908999739,"endHours":18.38683552960356,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:40","end":"19:25","startHours":17.66674908999739,"endHours":19.41674908999739,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:39","startHours":23.899642663038424,"endHours":24.651780966408293,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:38","end":"08:03","startHours":6.634674539449328,"endHours":8.044933858267836,"quality":"inauspicious"},{"name":"Udveg","start":"08:03","end":"09:27","startHours":8.044933858267836,"endHours":9.455193177086343,"quality":"inauspicious"},{"name":"Chala","start":"09:27","end":"10:52","startHours":9.455193177086343,"endHours":10.86545249590485,"quality":"neutral"},{"name":"Labha","start":"10:52","end":"12:17","startHours":10.86545249590485,"endHours":12.275711814723358,"quality":"auspicious"},{"name":"Amṛta","start":"12:17","end":"13:41","startHours":12.275711814723358,"endHours":13.685971133541866,"quality":"auspicious"},{"name":"Kāla","start":"13:41","end":"15:06","startHours":13.685971133541866,"endHours":15.096230452360373,"quality":"inauspicious"},{"name":"Śubha","start":"15:06","end":"16:30","startHours":15.096230452360373,"endHours":16.50648977117888,"quality":"auspicious"},{"name":"Roga","start":"16:30","end":"17:55","startHours":16.50648977117888,"endHours":17.91674908999739,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:55","end":"19:30","startHours":17.91674908999739,"endHours":19.50648977117888,"quality":"inauspicious"},{"name":"Śubha","start":"19:30","end":"21:06","startHours":19.50648977117888,"endHours":21.096230452360373,"quality":"auspicious"},{"name":"Roga","start":"21:06","end":"22:41","startHours":21.096230452360373,"endHours":22.685971133541866,"quality":"inauspicious"},{"name":"Udveg","start":"22:41","end":"00:17","startHours":22.685971133541866,"endHours":24.27571181472336,"quality":"inauspicious"},{"name":"Chala","start":"00:17","end":"01:52","startHours":24.27571181472336,"endHours":25.86545249590485,"quality":"neutral"},{"name":"Labha","start":"01:52","end":"03:27","startHours":25.86545249590485,"endHours":27.455193177086343,"quality":"auspicious"},{"name":"Amṛta","start":"03:27","end":"05:03","startHours":27.455193177086343,"endHours":29.044933858267836,"quality":"auspicious"},{"name":"Kāla","start":"05:03","end":"06:38","startHours":29.044933858267836,"endHours":30.63467453944933,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:38","end":"07:38","startHours":6.634674539449328,"endHours":7.634674539449328,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:38","end":"08:38","startHours":7.634674539449328,"endHours":8.634674539449328,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:38","end":"09:38","startHours":8.634674539449328,"endHours":9.634674539449328,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:38","end":"10:38","startHours":9.634674539449328,"endHours":10.634674539449328,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:38","end":"11:38","startHours":10.634674539449328,"endHours":11.634674539449328,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:38","end":"12:38","startHours":11.634674539449328,"endHours":12.634674539449328,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:38","end":"13:38","startHours":12.634674539449328,"endHours":13.634674539449328,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:38","end":"14:38","startHours":13.634674539449328,"endHours":14.634674539449328,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:38","end":"15:38","startHours":14.634674539449328,"endHours":15.634674539449328,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:38","end":"16:38","startHours":15.634674539449328,"endHours":16.63467453944933,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:38","end":"17:38","startHours":16.63467453944933,"endHours":17.63467453944933,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:38","end":"18:38","startHours":17.63467453944933,"endHours":18.63467453944933,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:38","end":"19:38","startHours":18.63467453944933,"endHours":19.63467453944933,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:38","end":"20:38","startHours":19.63467453944933,"endHours":20.63467453944933,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:38","end":"21:38","startHours":20.63467453944933,"endHours":21.63467453944933,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:38","end":"22:38","startHours":21.63467453944933,"endHours":22.63467453944933,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:38","end":"23:38","startHours":22.63467453944933,"endHours":23.63467453944933,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:38","end":"00:38","startHours":23.63467453944933,"endHours":24.63467453944933,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:38","end":"01:38","startHours":24.63467453944933,"endHours":25.63467453944933,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:38","end":"02:38","startHours":25.63467453944933,"endHours":26.63467453944933,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:38","end":"03:38","startHours":26.63467453944933,"endHours":27.63467453944933,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:38","end":"04:38","startHours":27.63467453944933,"endHours":28.63467453944933,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:38","end":"05:38","startHours":28.63467453944933,"endHours":29.63467453944933,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:38","end":"06:38","startHours":29.63467453944933,"endHours":30.63467453944933,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":10.11333854465039,"eotMinutes":0.015291116598477705,"ayanamsa":25.7708}},"calendars":{"vikram_samvat":2194,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":2059,"saka_samvatsara":"Hemalambī","bengali_samvat":1544,"malayalam_era":1313,"nanakshahi_year":668,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","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":"Vaiśākha Kṛṣṇa Ekādaśī · Vikram 2194 Sādhāraṇa · Śaka 2059 Hemalambī"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi_ingress":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi_ingress":"Meṣa"},"precedence":2},{"id":"varuthini-ekadashi","name":"Varūthinī Ekādaśī","name_sanskrit":"वरूथिनी एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Vāmana","significance":"Granted to King Mandhātā by Vāmana-deva; brings sound sleep + wealth.","vrata":true,"detection":{"tithi_number":26,"tithi_paksha":"Kṛṣṇa","lunar_month":"Vaiśākha"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"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":[]},"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 16, 2137 CE · Perth, Australia · Vidhyamitra","description":"April 16, 2137 CE for Perth, Australia: Kṛṣṇa Ekādaśī, sūryodaya 06:38, sūryāsta 17:55.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2137-04-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2137-04-16","sa":"https://sa.vidhyamitra.com/city/perth/2137-04-16","hi":"https://hi.vidhyamitra.com/city/perth/2137-04-16","x-default":"https://vidhyamitra.com/city/perth/2137-04-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T12:42:43.840Z","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":"2026-06-01T12:42:43.840Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T12:42:43.840Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}