{"id":"vidhyamitra:city-day:phoenix:2147-04-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2147-04-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2147-04-13","date_display":"April 13, 2147 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":2147,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505337.770833,"kali_year":5248,"ahargana":1916872.2708,"sun":{"sidereal_longitude":356.7345,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":140.177,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":143.4425,"elapsed_within_tithi_degrees":11.4425},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":140.177,"elapsed_within_degrees":6.8437},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":136.9115},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2147,"month":4,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2505337.770833,"ahargana":1916872.2708,"kali_year":5248,"ayanamsa_lahiri":25.9104,"grahas":{"sun":{"sidereal_longitude":356.933731,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":141.376731,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false,"latitude":0.4148},"mars":{"sidereal_longitude":54.24483099999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":4.757730999999978,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":155.89473099999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":true},"venus":{"sidereal_longitude":331.6057310000001,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":18.596131000000014,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":134.8825,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":314.8825,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":2147,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505337.770833,"kali_year":5248,"ahargana":1916872.2708,"sun":{"sidereal_longitude":356.7345,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":140.177,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":143.4425,"elapsed_within_tithi_degrees":11.4425},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":140.177,"elapsed_within_degrees":6.8437},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":136.9115},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.415,"elongation":143.442},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.415,"opposition_distance":36.558}},"eclipse_window_40days":[]},"city":{"slug":"phoenix","name":"Phoenix, USA","lat":33.4484,"lon":-112.074,"tz_offset_hours":-7,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"phoenix","name":"Phoenix, USA","lat":33.4484,"lon":-112.074,"tz_offset_hours":-7,"country":"US","tier":"diaspora"},"sunriseLocal":"06:01","sunsetLocal":"18:57","solarNoonLocal":"12:29","dayLengthHours":12.92568242846874,"dayLengthDisplay":"12 Hours 55 Mins 32 Secs","nightLengthDisplay":"11 Hours 04 Mins 28 Secs","moonriseLocal":"15:51","moonsetLocal":"04:23","rahuKala":{"name":"Rāhu Kāla","start":"14:06","end":"15:43","startHours":14.100140484053664,"endHours":15.715850787612256,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:01","end":"07:38","startHours":6.021588966260701,"endHours":7.637299269819294,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:15","end":"10:52","startHours":9.253009573377886,"endHours":10.868719876936478,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:02","end":"09:28","startHours":9.037581532903406,"endHours":9.468437613852366,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:34","end":"06:54","startHours":6.560159067446898,"endHours":6.904843932206065,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:55","startHours":12.053574099546113,"endHours":12.91528626144403,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:18","end":"05:10","startHours":4.298164642464869,"endHours":5.159876804362785,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:57","end":"06:01","startHours":4.944448763888306,"endHours":6.021588966260701,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:38","end":"15:30","startHours":14.638710585239862,"endHours":15.500422747137778,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:45","end":"19:09","startHours":18.74727139472944,"endHours":19.14727139472944,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:57","end":"19:29","startHours":18.94727139472944,"endHours":19.48584149591564,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:42","end":"20:27","startHours":18.69727139472944,"endHours":20.44727139472944,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:55","startHours":24.053574099546115,"endHours":24.915286261444027,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:01","end":"07:38","startHours":6.021588966260701,"endHours":7.637299269819294,"quality":"auspicious"},{"name":"Roga","start":"07:38","end":"09:15","startHours":7.637299269819294,"endHours":9.253009573377886,"quality":"inauspicious"},{"name":"Udveg","start":"09:15","end":"10:52","startHours":9.253009573377886,"endHours":10.868719876936478,"quality":"inauspicious"},{"name":"Chala","start":"10:52","end":"12:29","startHours":10.868719876936478,"endHours":12.484430180495071,"quality":"neutral"},{"name":"Labha","start":"12:29","end":"14:06","startHours":12.484430180495071,"endHours":14.100140484053664,"quality":"auspicious"},{"name":"Amṛta","start":"14:06","end":"15:43","startHours":14.100140484053664,"endHours":15.715850787612256,"quality":"auspicious"},{"name":"Kāla","start":"15:43","end":"17:20","startHours":15.715850787612256,"endHours":17.331561091170848,"quality":"inauspicious"},{"name":"Śubha","start":"17:20","end":"18:57","startHours":17.331561091170848,"endHours":18.94727139472944,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:57","end":"20:20","startHours":18.94727139472944,"endHours":20.331561091170848,"quality":"auspicious"},{"name":"Kāla","start":"20:20","end":"21:43","startHours":20.331561091170848,"endHours":21.715850787612254,"quality":"inauspicious"},{"name":"Śubha","start":"21:43","end":"23:06","startHours":21.715850787612254,"endHours":23.100140484053664,"quality":"auspicious"},{"name":"Roga","start":"23:06","end":"00:29","startHours":23.100140484053664,"endHours":24.48443018049507,"quality":"inauspicious"},{"name":"Udveg","start":"00:29","end":"01:52","startHours":24.48443018049507,"endHours":25.868719876936478,"quality":"inauspicious"},{"name":"Chala","start":"01:52","end":"03:15","startHours":25.868719876936478,"endHours":27.253009573377888,"quality":"neutral"},{"name":"Labha","start":"03:15","end":"04:38","startHours":27.253009573377888,"endHours":28.637299269819295,"quality":"auspicious"},{"name":"Amṛta","start":"04:38","end":"06:01","startHours":28.637299269819295,"endHours":30.0215889662607,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:01","end":"07:01","startHours":6.021588966260701,"endHours":7.021588966260701,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:01","end":"08:01","startHours":7.021588966260701,"endHours":8.021588966260701,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:01","end":"09:01","startHours":8.021588966260701,"endHours":9.021588966260701,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:01","end":"10:01","startHours":9.021588966260701,"endHours":10.021588966260701,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:01","end":"11:01","startHours":10.021588966260701,"endHours":11.021588966260701,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:01","end":"12:01","startHours":11.021588966260701,"endHours":12.021588966260701,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:01","end":"13:01","startHours":12.021588966260701,"endHours":13.021588966260701,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:01","end":"14:01","startHours":13.021588966260701,"endHours":14.021588966260701,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:01","end":"15:01","startHours":14.021588966260701,"endHours":15.021588966260701,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:01","end":"16:01","startHours":15.021588966260701,"endHours":16.0215889662607,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:01","end":"17:01","startHours":16.0215889662607,"endHours":17.0215889662607,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:01","end":"18:01","startHours":17.0215889662607,"endHours":18.0215889662607,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:01","end":"19:01","startHours":18.0215889662607,"endHours":19.0215889662607,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:01","end":"20:01","startHours":19.0215889662607,"endHours":20.0215889662607,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:01","end":"21:01","startHours":20.0215889662607,"endHours":21.0215889662607,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:01","end":"22:01","startHours":21.0215889662607,"endHours":22.0215889662607,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:01","end":"23:01","startHours":22.0215889662607,"endHours":23.0215889662607,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:01","end":"00:01","startHours":23.0215889662607,"endHours":24.0215889662607,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:01","end":"01:01","startHours":24.0215889662607,"endHours":25.0215889662607,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:01","end":"02:01","startHours":25.0215889662607,"endHours":26.0215889662607,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:01","end":"03:01","startHours":26.0215889662607,"endHours":27.0215889662607,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:01","end":"04:01","startHours":27.0215889662607,"endHours":28.0215889662607,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:01","end":"05:01","startHours":28.0215889662607,"endHours":29.0215889662607,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:01","end":"06:01","startHours":29.0215889662607,"endHours":30.0215889662607,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","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":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Sushira","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":8.882573494540457,"eotMinutes":-0.7698108297043191,"ayanamsa":25.9104}},"calendars":{"vikram_samvat":2204,"vikram_samvatsara":"Raudra","saka_samvat":2069,"saka_samvatsara":"Plavaṅga","bengali_samvat":1554,"malayalam_era":1323,"nanakshahi_year":678,"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 Dvādaśī · Vikram 2204 Raudra · Śaka 2069 Plavaṅga"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"phoenix"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 13, 2147 CE · Phoenix, USA · Vidhyamitra","description":"April 13, 2147 CE for Phoenix, USA: Śukla Dvādaśī, sūryodaya 06:01, sūryāsta 18:57.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2147-04-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2147-04-13","sa":"https://sa.vidhyamitra.com/city/phoenix/2147-04-13","hi":"https://hi.vidhyamitra.com/city/phoenix/2147-04-13","x-default":"https://vidhyamitra.com/city/phoenix/2147-04-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T19:00:33.884Z","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":"2026-05-31T19:00:33.884Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T19:00:33.884Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}