{"id":"vidhyamitra:city-day:phoenix:1939-05-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1939-05-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1939-05-01","date_display":"May 1, 1939 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":1939,"month":5,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2429384.770833,"kali_year":5041,"ahargana":1840919.2708,"sun":{"sidereal_longitude":16.9733,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":165.1873,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.214,"elapsed_within_tithi_degrees":4.214},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":165.1873,"elapsed_within_degrees":5.1873},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":182.1605},"karana":{"half_tithi_index":24,"name":"Kaulava"},"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":1939,"month":5,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2429384.770833,"ahargana":1840919.2708,"kali_year":5041,"ayanamsa_lahiri":23.0055,"grahas":{"sun":{"sidereal_longitude":16.77119399999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":163.55639399999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false,"latitude":-2.5179},"mars":{"sidereal_longitude":268.64389400000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":350.771094,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":335.54519400000004,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":344.385594,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":0.8442939999999908,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":199.2379,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":19.2379,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":1939,"month":5,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2429384.770833,"kali_year":5041,"ahargana":1840919.2708,"sun":{"sidereal_longitude":16.9733,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":165.1873,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.214,"elapsed_within_tithi_degrees":4.214},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":165.1873,"elapsed_within_degrees":5.1873},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":182.1605},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.518,"elongation":148.214},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.518,"opposition_distance":31.786}},"eclipse_window_40days":[{"offset_days":18,"type":"solar","occurs":true,"moon_latitude":-1.027,"elongation":2.776}]},"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":"05:41","sunsetLocal":"19:10","solarNoonLocal":"12:25","dayLengthHours":13.474677417507044,"dayLengthDisplay":"13 Hours 28 Mins 29 Secs","nightLengthDisplay":"10 Hours 31 Mins 31 Secs","moonriseLocal":"16:17","moonsetLocal":"04:08","rahuKala":{"name":"Rāhu Kāla","start":"07:22","end":"09:03","startHours":7.369962512952079,"endHours":9.05429719014046,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:44","end":"12:25","startHours":10.73863186732884,"endHours":12.42296654451722,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:06","end":"15:47","startHours":14.107301221705601,"endHours":15.791635898893981,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:17","startHours":8.829719233182008,"endHours":9.27887514709891,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:15","end":"06:36","startHours":6.247072728159825,"endHours":6.606397459293346,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:52","startHours":11.973810630600319,"endHours":12.87212245843412,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:53","end":"04:47","startHours":3.8890041800960926,"endHours":4.7873160079298955,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:34","end":"05:41","startHours":4.562738050971445,"endHours":5.6856278357636985,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:40","end":"15:34","startHours":14.668746114101728,"endHours":15.56705794193553,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:58","end":"19:22","startHours":18.960305253270743,"endHours":19.36030525327074,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:10","end":"19:43","startHours":19.160305253270742,"endHours":19.72175014566687,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:55","end":"20:40","startHours":18.910305253270742,"endHours":20.660305253270742,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:52","startHours":23.97381063060032,"endHours":24.87212245843412,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:41","end":"07:22","startHours":5.6856278357636985,"endHours":7.369962512952079,"quality":"auspicious"},{"name":"Kāla","start":"07:22","end":"09:03","startHours":7.369962512952079,"endHours":9.05429719014046,"quality":"inauspicious"},{"name":"Śubha","start":"09:03","end":"10:44","startHours":9.05429719014046,"endHours":10.73863186732884,"quality":"auspicious"},{"name":"Roga","start":"10:44","end":"12:25","startHours":10.73863186732884,"endHours":12.42296654451722,"quality":"inauspicious"},{"name":"Udveg","start":"12:25","end":"14:06","startHours":12.42296654451722,"endHours":14.107301221705601,"quality":"inauspicious"},{"name":"Chala","start":"14:06","end":"15:47","startHours":14.107301221705601,"endHours":15.791635898893981,"quality":"neutral"},{"name":"Labha","start":"15:47","end":"17:29","startHours":15.791635898893981,"endHours":17.47597057608236,"quality":"auspicious"},{"name":"Amṛta","start":"17:29","end":"19:10","startHours":17.47597057608236,"endHours":19.160305253270742,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:10","end":"20:29","startHours":19.160305253270742,"endHours":20.47597057608236,"quality":"neutral"},{"name":"Labha","start":"20:29","end":"21:47","startHours":20.47597057608236,"endHours":21.791635898893983,"quality":"auspicious"},{"name":"Amṛta","start":"21:47","end":"23:06","startHours":21.791635898893983,"endHours":23.1073012217056,"quality":"auspicious"},{"name":"Kāla","start":"23:06","end":"00:25","startHours":23.1073012217056,"endHours":24.42296654451722,"quality":"inauspicious"},{"name":"Śubha","start":"00:25","end":"01:44","startHours":24.42296654451722,"endHours":25.73863186732884,"quality":"auspicious"},{"name":"Roga","start":"01:44","end":"03:03","startHours":25.73863186732884,"endHours":27.05429719014046,"quality":"inauspicious"},{"name":"Udveg","start":"03:03","end":"04:22","startHours":27.05429719014046,"endHours":28.36996251295208,"quality":"inauspicious"},{"name":"Chala","start":"04:22","end":"05:41","startHours":28.36996251295208,"endHours":29.685627835763697,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:41","end":"06:41","startHours":5.6856278357636985,"endHours":6.6856278357636985,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:41","end":"07:41","startHours":6.6856278357636985,"endHours":7.6856278357636985,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:41","end":"08:41","startHours":7.6856278357636985,"endHours":8.685627835763698,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:41","end":"09:41","startHours":8.685627835763698,"endHours":9.685627835763698,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:41","end":"10:41","startHours":9.685627835763698,"endHours":10.685627835763698,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:41","end":"11:41","startHours":10.685627835763698,"endHours":11.685627835763698,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:41","end":"12:41","startHours":11.685627835763698,"endHours":12.685627835763698,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:41","end":"13:41","startHours":12.685627835763698,"endHours":13.685627835763698,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:41","end":"14:41","startHours":13.685627835763698,"endHours":14.685627835763698,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:41","end":"15:41","startHours":14.685627835763698,"endHours":15.685627835763698,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:41","end":"16:41","startHours":15.685627835763698,"endHours":16.685627835763697,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:41","end":"17:41","startHours":16.685627835763697,"endHours":17.685627835763697,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:41","end":"18:41","startHours":17.685627835763697,"endHours":18.685627835763697,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:41","end":"19:41","startHours":18.685627835763697,"endHours":19.685627835763697,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:41","end":"20:41","startHours":19.685627835763697,"endHours":20.685627835763697,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:41","end":"21:41","startHours":20.685627835763697,"endHours":21.685627835763697,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:41","end":"22:41","startHours":21.685627835763697,"endHours":22.685627835763697,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:41","end":"23:41","startHours":22.685627835763697,"endHours":23.685627835763697,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:41","end":"00:41","startHours":23.685627835763697,"endHours":24.685627835763697,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:41","end":"01:41","startHours":24.685627835763697,"endHours":25.685627835763697,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:41","end":"02:41","startHours":25.685627835763697,"endHours":26.685627835763697,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:41","end":"03:41","startHours":26.685627835763697,"endHours":27.685627835763697,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:41","end":"04:41","startHours":27.685627835763697,"endHours":28.685627835763697,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:41","end":"05:41","startHours":28.685627835763697,"endHours":29.685627835763697,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Mṛtyu","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":14.742069220029622,"eotMinutes":2.918007328966811,"ayanamsa":23.0055}},"calendars":{"vikram_samvat":1996,"vikram_samvatsara":"Nandana","saka_samvat":1861,"saka_samvatsara":"Pramāthi","bengali_samvat":1346,"malayalam_era":1115,"nanakshahi_year":470,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","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 Śukla Trayodaśī · Vikram 1996 Nandana · Śaka 1861 Pramāthi"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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":[]},"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 May 1, 1939 CE · Phoenix, USA · Vidhyamitra","description":"May 1, 1939 CE for Phoenix, USA: Śukla Trayodaśī, sūryodaya 05:41, sūryāsta 19:10.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1939-05-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1939-05-01","sa":"https://sa.vidhyamitra.com/city/phoenix/1939-05-01","hi":"https://hi.vidhyamitra.com/city/phoenix/1939-05-01","x-default":"https://vidhyamitra.com/city/phoenix/1939-05-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T03:28:22.308Z","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":"2026-06-01T03:28:22.308Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T03:28:22.308Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}