{"id":"vidhyamitra:city-day:phoenix:2018-10-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2018-10-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2018-10-17","date_display":"October 17, 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":10,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458408.770833,"kali_year":5120,"ahargana":1869943.2708,"sun":{"sidereal_longitude":178.7312,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":271.9908,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":93.2597,"elapsed_within_tithi_degrees":9.2597},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":271.9908,"elapsed_within_degrees":5.3242},"yoga":{"number":7,"name":"Sukarma","sum_longitude":90.722},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":10,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458408.770833,"ahargana":1869943.2708,"kali_year":5120,"ayanamsa_lahiri":24.1155,"grahas":{"sun":{"sidereal_longitude":179.50796400000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":272.631564,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false,"latitude":0.7355},"mars":{"sidereal_longitude":288.756764,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":196.170564,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":211.035164,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":194.11866399999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":249.62966400000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":101.4067,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":281.4067,"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":10,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458408.770833,"kali_year":5120,"ahargana":1869943.2708,"sun":{"sidereal_longitude":178.7312,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":271.9908,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":93.2597,"elapsed_within_tithi_degrees":9.2597},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":271.9908,"elapsed_within_degrees":5.3242},"yoga":{"number":7,"name":"Sukarma","sum_longitude":90.722},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.735,"elongation":93.26},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.735,"opposition_distance":86.74}},"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":"06:33","sunsetLocal":"17:53","solarNoonLocal":"12:13","dayLengthHours":11.319192107440559,"dayLengthDisplay":"11 Hours 19 Mins 09 Secs","nightLengthDisplay":"12 Hours 40 Mins 51 Secs","moonriseLocal":"13:21","moonsetLocal":"23:31","rahuKala":{"name":"Rāhu Kāla","start":"12:13","end":"13:38","startHours":12.217809673966201,"endHours":13.63270868739627,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:58","end":"09:23","startHours":7.97311263367599,"endHours":9.38801164710606,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:48","end":"12:13","startHours":10.802910660536131,"endHours":12.217809673966201,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:12","end":"09:35","startHours":9.199358445315385,"endHours":9.576664848896737,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:02","end":"07:20","startHours":7.029846624722611,"endHours":7.331691747587692,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:36","startHours":11.840503270384849,"endHours":12.595116077547553,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:03","end":"05:48","startHours":5.048988005920513,"endHours":5.803600813083217,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:37","end":"06:33","startHours":5.614947611292541,"endHours":6.558213620245921,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:06","end":"14:52","startHours":14.10434169187296,"endHours":14.858954499035665,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:41","end":"18:05","startHours":17.67740572768648,"endHours":18.07740572768648,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:53","end":"18:21","startHours":17.87740572768648,"endHours":18.34903873216317,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:38","end":"19:23","startHours":17.62740572768648,"endHours":19.37740572768648,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:36","startHours":23.84050327038485,"endHours":24.59511607754755,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:33","end":"07:58","startHours":6.558213620245921,"endHours":7.97311263367599,"quality":"auspicious"},{"name":"Amṛta","start":"07:58","end":"09:23","startHours":7.97311263367599,"endHours":9.38801164710606,"quality":"auspicious"},{"name":"Kāla","start":"09:23","end":"10:48","startHours":9.38801164710606,"endHours":10.802910660536131,"quality":"inauspicious"},{"name":"Śubha","start":"10:48","end":"12:13","startHours":10.802910660536131,"endHours":12.217809673966201,"quality":"auspicious"},{"name":"Roga","start":"12:13","end":"13:38","startHours":12.217809673966201,"endHours":13.63270868739627,"quality":"inauspicious"},{"name":"Udveg","start":"13:38","end":"15:03","startHours":13.63270868739627,"endHours":15.04760770082634,"quality":"inauspicious"},{"name":"Chala","start":"15:03","end":"16:28","startHours":15.04760770082634,"endHours":16.46250671425641,"quality":"neutral"},{"name":"Labha","start":"16:28","end":"17:53","startHours":16.46250671425641,"endHours":17.87740572768648,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:53","end":"19:28","startHours":17.87740572768648,"endHours":19.46250671425641,"quality":"inauspicious"},{"name":"Chala","start":"19:28","end":"21:03","startHours":19.46250671425641,"endHours":21.04760770082634,"quality":"neutral"},{"name":"Labha","start":"21:03","end":"22:38","startHours":21.04760770082634,"endHours":22.63270868739627,"quality":"auspicious"},{"name":"Amṛta","start":"22:38","end":"00:13","startHours":22.63270868739627,"endHours":24.2178096739662,"quality":"auspicious"},{"name":"Kāla","start":"00:13","end":"01:48","startHours":24.2178096739662,"endHours":25.80291066053613,"quality":"inauspicious"},{"name":"Śubha","start":"01:48","end":"03:23","startHours":25.80291066053613,"endHours":27.38801164710606,"quality":"auspicious"},{"name":"Roga","start":"03:23","end":"04:58","startHours":27.38801164710606,"endHours":28.97311263367599,"quality":"inauspicious"},{"name":"Udveg","start":"04:58","end":"06:33","startHours":28.97311263367599,"endHours":30.558213620245922,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:33","end":"07:33","startHours":6.558213620245921,"endHours":7.558213620245921,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:33","end":"08:33","startHours":7.558213620245921,"endHours":8.55821362024592,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:33","end":"09:33","startHours":8.55821362024592,"endHours":9.55821362024592,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:33","end":"10:33","startHours":9.55821362024592,"endHours":10.55821362024592,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:33","end":"11:33","startHours":10.55821362024592,"endHours":11.55821362024592,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:33","end":"12:33","startHours":11.55821362024592,"endHours":12.55821362024592,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:33","end":"13:33","startHours":12.55821362024592,"endHours":13.55821362024592,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:33","end":"14:33","startHours":13.55821362024592,"endHours":14.55821362024592,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:33","end":"15:33","startHours":14.55821362024592,"endHours":15.55821362024592,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:33","end":"16:33","startHours":15.55821362024592,"endHours":16.558213620245922,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:33","end":"17:33","startHours":16.558213620245922,"endHours":17.558213620245922,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:33","end":"18:33","startHours":17.558213620245922,"endHours":18.558213620245922,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:33","end":"19:33","startHours":18.558213620245922,"endHours":19.558213620245922,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:33","end":"20:33","startHours":19.558213620245922,"endHours":20.558213620245922,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:33","end":"21:33","startHours":20.558213620245922,"endHours":21.558213620245922,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:33","end":"22:33","startHours":21.558213620245922,"endHours":22.558213620245922,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:33","end":"23:33","startHours":22.558213620245922,"endHours":23.558213620245922,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:33","end":"00:33","startHours":23.558213620245922,"endHours":24.558213620245922,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:33","end":"01:33","startHours":24.558213620245922,"endHours":25.558213620245922,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:33","end":"02:33","startHours":25.558213620245922,"endHours":26.558213620245922,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:33","end":"03:33","startHours":26.558213620245922,"endHours":27.558213620245922,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:33","end":"04:33","startHours":27.558213620245922,"endHours":28.558213620245922,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:33","end":"05:33","startHours":28.558213620245922,"endHours":29.558213620245922,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:33","end":"06:33","startHours":29.558213620245922,"endHours":30.558213620245922,"planetary_lord":"Sun"}],"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":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-9.170972031846697,"eotMinutes":15.227419562027912,"ayanamsa":24.1155}},"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 Aṣṭamī · Vikram 2075 Virodhakṛt · Śaka 1940 Vilambī"},"festivals":[{"id":"durga-ashtami","name":"Mahā-Aṣṭamī (Durgā-Aṣṭamī)","name_sanskrit":"महाष्टमी","tradition":"Shakta","associated_deity":"Devī Durgā","significance":"8th day of Śāradīya Navrātri; Mahiṣāsura-mardinī kṣaṇa.","vrata":true,"detection":{"tithi_number":8,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":1},{"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}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","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 October 17, 2018 CE · Phoenix, USA · Vidhyamitra","description":"October 17, 2018 CE for Phoenix, USA: Śukla Aṣṭamī, sūryodaya 06:33, sūryāsta 17:53.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2018-10-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2018-10-17","sa":"https://sa.vidhyamitra.com/city/phoenix/2018-10-17","hi":"https://hi.vidhyamitra.com/city/phoenix/2018-10-17","x-default":"https://vidhyamitra.com/city/phoenix/2018-10-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T07:32:44.447Z","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":"2026-05-15T07:32:44.447Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T07:32:44.447Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}