{"id":"vidhyamitra:city-day:phoenix:2018-05-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2018-05-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2018-05-15","date_display":"May 15, 2018 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":2018,"month":5,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458253.770833,"kali_year":5120,"ahargana":1869788.2708,"sun":{"sidereal_longitude":30.0161,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":22.8046,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":352.7885,"elapsed_within_tithi_degrees":4.7885},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3,"moon_longitude":22.8046,"elapsed_within_degrees":9.4713},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":52.8207},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"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":2018,"month":5,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458253.770833,"ahargana":1869788.2708,"kali_year":5120,"ayanamsa_lahiri":24.1096,"grahas":{"sun":{"sidereal_longitude":30.07458600000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":24.103386,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false,"latitude":-4.493},"mars":{"sidereal_longitude":275.179886,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":7.814285999999981,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":203.32238600000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":60.243786,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":254.34008599999993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":109.6194,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":289.6194,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":2018,"month":5,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458253.770833,"kali_year":5120,"ahargana":1869788.2708,"sun":{"sidereal_longitude":30.0161,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":22.8046,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":352.7885,"elapsed_within_tithi_degrees":4.7885},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3,"moon_longitude":22.8046,"elapsed_within_degrees":9.4713},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":52.8207},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.493,"elongation":7.211},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.493,"opposition_distance":172.789}},"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":"05:28","sunsetLocal":"19:21","solarNoonLocal":"12:25","dayLengthHours":13.87902128660321,"dayLengthDisplay":"13 Hours 52 Mins 44 Secs","nightLengthDisplay":"10 Hours 07 Mins 16 Secs","moonriseLocal":"05:10","moonsetLocal":"18:51","rahuKala":{"name":"Rāhu Kāla","start":"15:53","end":"17:37","startHours":15.878751972718701,"endHours":17.613629633544104,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:56","end":"10:40","startHours":8.939241329417097,"endHours":10.674118990242498,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:25","end":"14:09","startHours":12.408996651067898,"endHours":14.1438743118933,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:42","end":"09:10","startHours":8.707924307973709,"endHours":9.170558350860484,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:03","end":"06:25","startHours":6.047778561374761,"endHours":6.41788579568418,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:52","startHours":11.946362608181126,"endHours":12.871630693954671,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:37","end":"04:33","startHours":3.6189498362191994,"endHours":4.544217921992747,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:19","end":"05:28","startHours":4.31290090054936,"endHours":5.469486007766294,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:43","end":"15:39","startHours":14.722166865501768,"endHours":15.647434951275315,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:09","end":"19:33","startHours":19.148507294369505,"endHours":19.548507294369504,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:21","end":"19:56","startHours":19.348507294369504,"endHours":19.92679984797797,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:06","end":"20:51","startHours":19.098507294369504,"endHours":20.848507294369504,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:52","startHours":23.946362608181126,"endHours":24.87163069395467,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:28","end":"07:12","startHours":5.469486007766294,"endHours":7.204363668591696,"quality":"inauspicious"},{"name":"Udveg","start":"07:12","end":"08:56","startHours":7.204363668591696,"endHours":8.939241329417097,"quality":"inauspicious"},{"name":"Chala","start":"08:56","end":"10:40","startHours":8.939241329417097,"endHours":10.674118990242498,"quality":"neutral"},{"name":"Labha","start":"10:40","end":"12:25","startHours":10.674118990242498,"endHours":12.408996651067898,"quality":"auspicious"},{"name":"Amṛta","start":"12:25","end":"14:09","startHours":12.408996651067898,"endHours":14.1438743118933,"quality":"auspicious"},{"name":"Kāla","start":"14:09","end":"15:53","startHours":14.1438743118933,"endHours":15.878751972718701,"quality":"inauspicious"},{"name":"Śubha","start":"15:53","end":"17:37","startHours":15.878751972718701,"endHours":17.613629633544104,"quality":"auspicious"},{"name":"Roga","start":"17:37","end":"19:21","startHours":17.613629633544104,"endHours":19.348507294369504,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:21","end":"20:37","startHours":19.348507294369504,"endHours":20.613629633544104,"quality":"inauspicious"},{"name":"Śubha","start":"20:37","end":"21:53","startHours":20.613629633544104,"endHours":21.878751972718703,"quality":"auspicious"},{"name":"Roga","start":"21:53","end":"23:09","startHours":21.878751972718703,"endHours":23.1438743118933,"quality":"inauspicious"},{"name":"Udveg","start":"23:09","end":"00:25","startHours":23.1438743118933,"endHours":24.4089966510679,"quality":"inauspicious"},{"name":"Chala","start":"00:25","end":"01:40","startHours":24.4089966510679,"endHours":25.674118990242498,"quality":"neutral"},{"name":"Labha","start":"01:40","end":"02:56","startHours":25.674118990242498,"endHours":26.939241329417097,"quality":"auspicious"},{"name":"Amṛta","start":"02:56","end":"04:12","startHours":26.939241329417097,"endHours":28.204363668591697,"quality":"auspicious"},{"name":"Kāla","start":"04:12","end":"05:28","startHours":28.204363668591697,"endHours":29.469486007766292,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:28","end":"06:28","startHours":5.469486007766294,"endHours":6.469486007766294,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:28","end":"07:28","startHours":6.469486007766294,"endHours":7.469486007766294,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:28","end":"08:28","startHours":7.469486007766294,"endHours":8.469486007766294,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:28","end":"09:28","startHours":8.469486007766294,"endHours":9.469486007766294,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:28","end":"10:28","startHours":9.469486007766294,"endHours":10.469486007766294,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:28","end":"11:28","startHours":10.469486007766294,"endHours":11.469486007766294,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:28","end":"12:28","startHours":11.469486007766294,"endHours":12.469486007766294,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:28","end":"13:28","startHours":12.469486007766294,"endHours":13.469486007766294,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:28","end":"14:28","startHours":13.469486007766294,"endHours":14.469486007766294,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:28","end":"15:28","startHours":14.469486007766294,"endHours":15.469486007766294,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:28","end":"16:28","startHours":15.469486007766294,"endHours":16.469486007766292,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:28","end":"17:28","startHours":16.469486007766292,"endHours":17.469486007766292,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:28","end":"18:28","startHours":17.469486007766292,"endHours":18.469486007766292,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:28","end":"19:28","startHours":18.469486007766292,"endHours":19.469486007766292,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:28","end":"20:28","startHours":19.469486007766292,"endHours":20.469486007766292,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:28","end":"21:28","startHours":20.469486007766292,"endHours":21.469486007766292,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:28","end":"22:28","startHours":21.469486007766292,"endHours":22.469486007766292,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:28","end":"23:28","startHours":22.469486007766292,"endHours":23.469486007766292,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:28","end":"00:28","startHours":23.469486007766292,"endHours":24.469486007766292,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:28","end":"01:28","startHours":24.469486007766292,"endHours":25.469486007766292,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:28","end":"02:28","startHours":25.469486007766292,"endHours":26.469486007766292,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:28","end":"03:28","startHours":26.469486007766292,"endHours":27.469486007766292,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:28","end":"04:28","startHours":27.469486007766292,"endHours":28.469486007766292,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:28","end":"05:28","startHours":28.469486007766292,"endHours":29.469486007766292,"planetary_lord":"Saturn"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"drikRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":18.815524525702642,"eotMinutes":3.7562009359260493,"ayanamsa":24.1096}},"calendars":{"vikram_samvat":2075,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1940,"saka_samvatsara":"Vilambī","bengali_samvat":1425,"malayalam_era":1194,"nanakshahi_year":549,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Amāvasyā · Vikram 2075 Virodhakṛt · Śaka 1940 Vilambī"},"festivals":[{"id":"vat-savitri-amavasya","name":"Vaṭa Sāvitrī Amāvasyā","name_sanskrit":"वट सावित्री अमावस्या","tradition":"Pan-Hindu","associated_deity":"Sāvitrī Devī","significance":"Sāvitrī's redemption of Satyavān from Yama; pati-vrata observance.","vrata":true,"detection":{"tithi_number":30,"tithi_paksha":"Kṛṣṇa","lunar_month":"Jyeṣṭha"},"precedence":2,"sources":["Mahābhārata, Vana Parva — Sāvitrī Upākhyāna"]},{"id":"vrishabha-sankranti","name":"Vṛṣabha Saṅkrānti","name_sanskrit":"वृषभ सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Taurus.","vrata":false,"detection":{"sun_rashi":"Vṛṣabha"},"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","relevance":0.5}]},"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 15, 2018 CE · Phoenix, USA · Vidhyamitra","description":"May 15, 2018 CE for Phoenix, USA: Kṛṣṇa Amāvasyā, sūryodaya 05:28, sūryāsta 19:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2018-05-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2018-05-15","sa":"https://sa.vidhyamitra.com/city/phoenix/2018-05-15","hi":"https://hi.vidhyamitra.com/city/phoenix/2018-05-15","x-default":"https://vidhyamitra.com/city/phoenix/2018-05-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T03:00:33.149Z","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":"2026-05-15T03:00:33.149Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T03:00:33.149Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}