{"id":"vidhyamitra:city-day:phoenix:2131-05-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2131-05-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2131-05-01","date_display":"May 1, 2131 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":2131,"month":5,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499511.770833,"kali_year":5233,"ahargana":1911046.2708,"sun":{"sidereal_longitude":14.382,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":62.9089,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":48.5268,"elapsed_within_tithi_degrees":0.5268},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3,"moon_longitude":62.9089,"elapsed_within_degrees":9.5755},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":77.2909},"karana":{"half_tithi_index":8,"name":"Bava"},"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":2131,"month":5,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2499511.770833,"ahargana":1911046.2708,"kali_year":5233,"ayanamsa_lahiri":25.6875,"grahas":{"sun":{"sidereal_longitude":14.617027000000007,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":65.456727,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false,"latitude":-1.5865},"mars":{"sidereal_longitude":299.85372699999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":353.665227,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":34.12332700000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":352.808227,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":195.64352699999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":83.572,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":263.572,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"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":2131,"month":5,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499511.770833,"kali_year":5233,"ahargana":1911046.2708,"sun":{"sidereal_longitude":14.382,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":62.9089,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":48.5268,"elapsed_within_tithi_degrees":0.5268},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3,"moon_longitude":62.9089,"elapsed_within_degrees":9.5755},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":77.2909},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.586,"elongation":48.527},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.586,"opposition_distance":131.473}},"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":"05:41","sunsetLocal":"19:10","solarNoonLocal":"12:25","dayLengthHours":13.490754848481707,"dayLengthDisplay":"13 Hours 29 Mins 27 Secs","nightLengthDisplay":"10 Hours 30 Mins 33 Secs","moonriseLocal":"08:39","moonsetLocal":"22:58","rahuKala":{"name":"Rāhu Kāla","start":"15:48","end":"17:29","startHours":15.795655256637648,"endHours":17.48199961269786,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:03","end":"10:44","startHours":9.050277832396795,"endHours":10.736622188457007,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:25","end":"14:07","startHours":12.42296654451722,"endHours":14.109310900577434,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:17","startHours":8.825431918255433,"endHours":9.275123746538156,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:14","end":"06:36","startHours":6.239703905629772,"endHours":6.59945736825595,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:52","startHours":11.973274716234496,"endHours":12.872658372799943,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:53","end":"04:47","startHours":3.8788218071454725,"endHours":4.77820546371092,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:33","end":"05:41","startHours":4.553359549569558,"endHours":5.677589120276367,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:40","end":"15:34","startHours":14.671425685930839,"endHours":15.570809342496286,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:58","end":"19:22","startHours":18.968343968758074,"endHours":19.368343968758072,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:10","end":"19:44","startHours":19.168343968758073,"endHours":19.730458754111478,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:55","end":"20:40","startHours":18.918343968758073,"endHours":20.668343968758073,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:52","startHours":23.973274716234496,"endHours":24.872658372799943,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:41","end":"07:22","startHours":5.677589120276367,"endHours":7.36393347633658,"quality":"inauspicious"},{"name":"Udveg","start":"07:22","end":"09:03","startHours":7.36393347633658,"endHours":9.050277832396795,"quality":"inauspicious"},{"name":"Chala","start":"09:03","end":"10:44","startHours":9.050277832396795,"endHours":10.736622188457007,"quality":"neutral"},{"name":"Labha","start":"10:44","end":"12:25","startHours":10.736622188457007,"endHours":12.42296654451722,"quality":"auspicious"},{"name":"Amṛta","start":"12:25","end":"14:07","startHours":12.42296654451722,"endHours":14.109310900577434,"quality":"auspicious"},{"name":"Kāla","start":"14:07","end":"15:48","startHours":14.109310900577434,"endHours":15.795655256637648,"quality":"inauspicious"},{"name":"Śubha","start":"15:48","end":"17:29","startHours":15.795655256637648,"endHours":17.48199961269786,"quality":"auspicious"},{"name":"Roga","start":"17:29","end":"19:10","startHours":17.48199961269786,"endHours":19.168343968758073,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:10","end":"20:29","startHours":19.168343968758073,"endHours":20.48199961269786,"quality":"inauspicious"},{"name":"Śubha","start":"20:29","end":"21:48","startHours":20.48199961269786,"endHours":21.795655256637644,"quality":"auspicious"},{"name":"Roga","start":"21:48","end":"23:07","startHours":21.795655256637644,"endHours":23.109310900577434,"quality":"inauspicious"},{"name":"Udveg","start":"23:07","end":"00:25","startHours":23.109310900577434,"endHours":24.42296654451722,"quality":"inauspicious"},{"name":"Chala","start":"00:25","end":"01:44","startHours":24.42296654451722,"endHours":25.736622188457005,"quality":"neutral"},{"name":"Labha","start":"01:44","end":"03:03","startHours":25.736622188457005,"endHours":27.050277832396795,"quality":"auspicious"},{"name":"Amṛta","start":"03:03","end":"04:22","startHours":27.050277832396795,"endHours":28.36393347633658,"quality":"auspicious"},{"name":"Kāla","start":"04:22","end":"05:41","startHours":28.36393347633658,"endHours":29.677589120276366,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:41","end":"06:41","startHours":5.677589120276367,"endHours":6.677589120276367,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:41","end":"07:41","startHours":6.677589120276367,"endHours":7.677589120276367,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:41","end":"08:41","startHours":7.677589120276367,"endHours":8.677589120276366,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:41","end":"09:41","startHours":8.677589120276366,"endHours":9.677589120276366,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:41","end":"10:41","startHours":9.677589120276366,"endHours":10.677589120276366,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:41","end":"11:41","startHours":10.677589120276366,"endHours":11.677589120276366,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:41","end":"12:41","startHours":11.677589120276366,"endHours":12.677589120276366,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:41","end":"13:41","startHours":12.677589120276366,"endHours":13.677589120276366,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:41","end":"14:41","startHours":13.677589120276366,"endHours":14.677589120276366,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:41","end":"15:41","startHours":14.677589120276366,"endHours":15.677589120276366,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:41","end":"16:41","startHours":15.677589120276366,"endHours":16.677589120276366,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:41","end":"17:41","startHours":16.677589120276366,"endHours":17.677589120276366,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:41","end":"18:41","startHours":17.677589120276366,"endHours":18.677589120276366,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:41","end":"19:41","startHours":18.677589120276366,"endHours":19.677589120276366,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:41","end":"20:41","startHours":19.677589120276366,"endHours":20.677589120276366,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:41","end":"21:41","startHours":20.677589120276366,"endHours":21.677589120276366,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:41","end":"22:41","startHours":21.677589120276366,"endHours":22.677589120276366,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:41","end":"23:41","startHours":22.677589120276366,"endHours":23.677589120276366,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:41","end":"00:41","startHours":23.677589120276366,"endHours":24.677589120276366,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:41","end":"01:41","startHours":24.677589120276366,"endHours":25.677589120276366,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:41","end":"02:41","startHours":25.677589120276366,"endHours":26.677589120276366,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:41","end":"03:41","startHours":26.677589120276366,"endHours":27.677589120276366,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:41","end":"04:41","startHours":27.677589120276366,"endHours":28.677589120276366,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:41","end":"05:41","startHours":28.677589120276366,"endHours":29.677589120276366,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":14.90832817335938,"eotMinutes":2.918007328966811,"ayanamsa":25.6875}},"calendars":{"vikram_samvat":2188,"vikram_samvatsara":"Krodhi","saka_samvat":2053,"saka_samvatsara":"Khara","bengali_samvat":1538,"malayalam_era":1307,"nanakshahi_year":662,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Pañcamī · Vikram 2188 Krodhi · Śaka 2053 Khara"},"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":"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":"Meṣa"},"precedence":2},{"id":"shankara-jayanti","name":"Ādi Śaṅkarācārya Jayantī","name_sanskrit":"आदि शङ्कराचार्य जयन्ती","tradition":"Smarta","associated_deity":"Ādi Śaṅkarācārya","significance":"Birth of Ādi Śaṅkara at Kāladī, Kerala; Advaita-pratiṣṭhāpaka.","vrata":false,"detection":{"tithi_number":5,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":3}],"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":"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, 2131 CE · Phoenix, USA · Vidhyamitra","description":"May 1, 2131 CE for Phoenix, USA: Śukla Pañcamī, sūryodaya 05:41, sūryāsta 19:10.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2131-05-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2131-05-01","sa":"https://sa.vidhyamitra.com/city/phoenix/2131-05-01","hi":"https://hi.vidhyamitra.com/city/phoenix/2131-05-01","x-default":"https://vidhyamitra.com/city/phoenix/2131-05-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-23T08:12:45.016Z","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":"2026-05-23T08:12:45.016Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-23T08:12:45.016Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}