{"id":"vidhyamitra:city-day:phoenix:2018-09-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2018-09-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2018-09-20","date_display":"September 20, 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":9,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458381.770833,"kali_year":5120,"ahargana":1869916.2708,"sun":{"sidereal_longitude":152.1496,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":274.2453,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":122.0957,"elapsed_within_tithi_degrees":2.0957},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3,"moon_longitude":274.2453,"elapsed_within_degrees":7.5786},"yoga":{"number":5,"name":"Śobhana","sum_longitude":66.3949},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"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":2018,"month":9,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458381.770833,"ahargana":1869916.2708,"kali_year":5120,"ayanamsa_lahiri":24.1145,"grahas":{"sun":{"sidereal_longitude":152.93089499999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":276.42189499999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false,"latitude":0.6716},"mars":{"sidereal_longitude":277.802495,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":151.744395,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":205.91839499999992,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":192.29179499999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":248.467395,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":102.8373,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":282.8373,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":2018,"month":9,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458381.770833,"kali_year":5120,"ahargana":1869916.2708,"sun":{"sidereal_longitude":152.1496,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":274.2453,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":122.0957,"elapsed_within_tithi_degrees":2.0957},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3,"moon_longitude":274.2453,"elapsed_within_degrees":7.5786},"yoga":{"number":5,"name":"Śobhana","sum_longitude":66.3949},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.672,"elongation":122.096},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.672,"opposition_distance":57.904}},"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":"06:14","sunsetLocal":"18:28","solarNoonLocal":"12:21","dayLengthHours":12.236654580657806,"dayLengthDisplay":"12 Hours 14 Mins 12 Secs","nightLengthDisplay":"11 Hours 45 Mins 48 Secs","moonriseLocal":"15:28","moonsetLocal":"01:42","rahuKala":{"name":"Rāhu Kāla","start":"13:53","end":"15:24","startHours":13.878733243222984,"endHours":15.408315065805208,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:14","end":"07:46","startHours":6.230824130311855,"endHours":7.7604059528940805,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:17","end":"10:49","startHours":9.289987775476305,"endHours":10.819569598058532,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:05","end":"09:30","startHours":9.086043532465343,"endHours":9.49393201848727,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:44","end":"07:04","startHours":6.740684737839263,"endHours":7.066995526656805,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:45","startHours":11.941262934618832,"endHours":12.757039906662685,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:36","end":"05:25","startHours":4.599270186224148,"endHours":5.415047158268001,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:13","end":"06:14","startHours":5.211102915257038,"endHours":6.230824130311855,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:23","end":"15:12","startHours":14.388593850750393,"endHours":15.204370822794246,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:16","end":"18:40","startHours":18.267478710969662,"endHours":18.66747871096966,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:28","end":"18:59","startHours":18.46747871096966,"endHours":18.97733931849707,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:13","end":"19:58","startHours":18.21747871096966,"endHours":19.96747871096966,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:45","startHours":23.94126293461883,"endHours":24.757039906662687,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:14","end":"07:46","startHours":6.230824130311855,"endHours":7.7604059528940805,"quality":"auspicious"},{"name":"Roga","start":"07:46","end":"09:17","startHours":7.7604059528940805,"endHours":9.289987775476305,"quality":"inauspicious"},{"name":"Udveg","start":"09:17","end":"10:49","startHours":9.289987775476305,"endHours":10.819569598058532,"quality":"inauspicious"},{"name":"Chala","start":"10:49","end":"12:21","startHours":10.819569598058532,"endHours":12.349151420640759,"quality":"neutral"},{"name":"Labha","start":"12:21","end":"13:53","startHours":12.349151420640759,"endHours":13.878733243222984,"quality":"auspicious"},{"name":"Amṛta","start":"13:53","end":"15:24","startHours":13.878733243222984,"endHours":15.408315065805208,"quality":"auspicious"},{"name":"Kāla","start":"15:24","end":"16:56","startHours":15.408315065805208,"endHours":16.937896888387435,"quality":"inauspicious"},{"name":"Śubha","start":"16:56","end":"18:28","startHours":16.937896888387435,"endHours":18.46747871096966,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:28","end":"19:56","startHours":18.46747871096966,"endHours":19.937896888387435,"quality":"auspicious"},{"name":"Kāla","start":"19:56","end":"21:24","startHours":19.937896888387435,"endHours":21.408315065805212,"quality":"inauspicious"},{"name":"Śubha","start":"21:24","end":"22:53","startHours":21.408315065805212,"endHours":22.878733243222985,"quality":"auspicious"},{"name":"Roga","start":"22:53","end":"00:21","startHours":22.878733243222985,"endHours":24.34915142064076,"quality":"inauspicious"},{"name":"Udveg","start":"00:21","end":"01:49","startHours":24.34915142064076,"endHours":25.819569598058532,"quality":"inauspicious"},{"name":"Chala","start":"01:49","end":"03:17","startHours":25.819569598058532,"endHours":27.289987775476305,"quality":"neutral"},{"name":"Labha","start":"03:17","end":"04:46","startHours":27.289987775476305,"endHours":28.760405952894082,"quality":"auspicious"},{"name":"Amṛta","start":"04:46","end":"06:14","startHours":28.760405952894082,"endHours":30.230824130311856,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:14","end":"07:14","startHours":6.230824130311855,"endHours":7.230824130311855,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:14","end":"08:14","startHours":7.230824130311855,"endHours":8.230824130311856,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:14","end":"09:14","startHours":8.230824130311856,"endHours":9.230824130311856,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:14","end":"10:14","startHours":9.230824130311856,"endHours":10.230824130311856,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:14","end":"11:14","startHours":10.230824130311856,"endHours":11.230824130311856,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:14","end":"12:14","startHours":11.230824130311856,"endHours":12.230824130311856,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:14","end":"13:14","startHours":12.230824130311856,"endHours":13.230824130311856,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:14","end":"14:14","startHours":13.230824130311856,"endHours":14.230824130311856,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:14","end":"15:14","startHours":14.230824130311856,"endHours":15.230824130311856,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:14","end":"16:14","startHours":15.230824130311856,"endHours":16.230824130311856,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:14","end":"17:14","startHours":16.230824130311856,"endHours":17.230824130311856,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:14","end":"18:14","startHours":17.230824130311856,"endHours":18.230824130311856,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:14","end":"19:14","startHours":18.230824130311856,"endHours":19.230824130311856,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:14","end":"20:14","startHours":19.230824130311856,"endHours":20.230824130311856,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:14","end":"21:14","startHours":20.230824130311856,"endHours":21.230824130311856,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:14","end":"22:14","startHours":21.230824130311856,"endHours":22.230824130311856,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:14","end":"23:14","startHours":22.230824130311856,"endHours":23.230824130311856,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:14","end":"00:14","startHours":23.230824130311856,"endHours":24.230824130311856,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:14","end":"01:14","startHours":24.230824130311856,"endHours":25.230824130311856,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:14","end":"02:14","startHours":25.230824130311856,"endHours":26.230824130311856,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:14","end":"03:14","startHours":26.230824130311856,"endHours":27.230824130311856,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:14","end":"04:14","startHours":27.230824130311856,"endHours":28.230824130311856,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:14","end":"05:14","startHours":28.230824130311856,"endHours":29.230824130311856,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:14","end":"06:14","startHours":29.230824130311856,"endHours":30.230824130311856,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"drikRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":1.174703857643168,"eotMinutes":7.346914761554353,"ayanamsa":24.1145}},"calendars":{"vikram_samvat":2075,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1940,"saka_samvatsara":"Vilambī","bengali_samvat":1425,"malayalam_era":1194,"nanakshahi_year":549,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Ekādaśī · Vikram 2075 Virodhakṛt · Śaka 1940 Vilambī"},"festivals":[{"id":"pashankusha-ekadashi","name":"Pāśāṅkuśā Ekādaśī","name_sanskrit":"पाशाङ्कुशा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Padmanābha (Viṣṇu)","significance":"Confers strength + wealth + son; equivalent to 1000 Aśvamedha-yajñas.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":4},{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"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":"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 September 20, 2018 CE · Phoenix, USA · Vidhyamitra","description":"September 20, 2018 CE for Phoenix, USA: Śukla Ekādaśī, sūryodaya 06:14, sūryāsta 18:28.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2018-09-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2018-09-20","sa":"https://sa.vidhyamitra.com/city/phoenix/2018-09-20","hi":"https://hi.vidhyamitra.com/city/phoenix/2018-09-20","x-default":"https://vidhyamitra.com/city/phoenix/2018-09-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T13:55:48.569Z","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":"2026-05-15T13:55:48.569Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T13:55:48.569Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}