{"id":"vidhyamitra:city-day:phoenix:2155-02-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2155-02-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2155-02-17","date_display":"February 17, 2155 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":2155,"month":2,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508204.770833,"kali_year":5256,"ahargana":1919739.2708,"sun":{"sidereal_longitude":301.7912,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":116.4768,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":174.6856,"elapsed_within_tithi_degrees":6.6856},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":116.4768,"elapsed_within_degrees":9.8101},"yoga":{"number":5,"name":"Śobhana","sum_longitude":58.268},"karana":{"half_tithi_index":29,"name":"Bava"},"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":2155,"month":2,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2508204.770833,"ahargana":1919739.2708,"kali_year":5256,"ayanamsa_lahiri":26.02,"grahas":{"sun":{"sidereal_longitude":302.0560909999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":117.09379100000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false,"latitude":3.2625},"mars":{"sidereal_longitude":163.18199099999993,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":284.091991,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":28.83609100000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":264.615091,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":126.977891,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":342.975,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":162.975,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":2155,"month":2,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508204.770833,"kali_year":5256,"ahargana":1919739.2708,"sun":{"sidereal_longitude":301.7912,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":116.4768,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":174.6856,"elapsed_within_tithi_degrees":6.6856},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":116.4768,"elapsed_within_degrees":9.8101},"yoga":{"number":5,"name":"Śobhana","sum_longitude":58.268},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.262,"elongation":174.686},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.262,"opposition_distance":5.314}},"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":"07:11","sunsetLocal":"18:14","solarNoonLocal":"12:43","dayLengthHours":11.04802915767724,"dayLengthDisplay":"11 Hours 02 Mins 53 Secs","nightLengthDisplay":"12 Hours 57 Mins 07 Secs","moonriseLocal":"17:43","moonsetLocal":"07:03","rahuKala":{"name":"Rāhu Kāla","start":"08:34","end":"09:57","startHours":8.570131871726636,"endHours":9.951135516436292,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:20","end":"12:43","startHours":11.332139161145946,"endHours":12.7131428058556,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:06","end":"15:29","startHours":14.094146450565257,"endHours":15.47515009527491,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:46","end":"10:08","startHours":9.767001697141671,"endHours":10.135269335730912,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:39","end":"07:57","startHours":7.649462775253533,"endHours":7.944076886124926,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:21","end":"13:05","startHours":12.344875167266359,"endHours":13.081410444444842,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:43","end":"06:27","startHours":5.716057672660016,"endHours":6.452592949838499,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:16","end":"07:11","startHours":6.268459130543878,"endHours":7.189128227016981,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:33","end":"15:17","startHours":14.554480998801807,"endHours":15.29101627598029,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:02","end":"18:26","startHours":18.037157384694222,"endHours":18.43715738469422,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:14","end":"18:42","startHours":18.23715738469422,"endHours":18.697491932930774,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:59","end":"19:44","startHours":17.98715738469422,"endHours":19.73715738469422,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:21","end":"01:05","startHours":24.34487516726636,"endHours":25.081410444444842,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:11","end":"08:34","startHours":7.189128227016981,"endHours":8.570131871726636,"quality":"auspicious"},{"name":"Kāla","start":"08:34","end":"09:57","startHours":8.570131871726636,"endHours":9.951135516436292,"quality":"inauspicious"},{"name":"Śubha","start":"09:57","end":"11:20","startHours":9.951135516436292,"endHours":11.332139161145946,"quality":"auspicious"},{"name":"Roga","start":"11:20","end":"12:43","startHours":11.332139161145946,"endHours":12.7131428058556,"quality":"inauspicious"},{"name":"Udveg","start":"12:43","end":"14:06","startHours":12.7131428058556,"endHours":14.094146450565257,"quality":"inauspicious"},{"name":"Chala","start":"14:06","end":"15:29","startHours":14.094146450565257,"endHours":15.47515009527491,"quality":"neutral"},{"name":"Labha","start":"15:29","end":"16:51","startHours":15.47515009527491,"endHours":16.856153739984567,"quality":"auspicious"},{"name":"Amṛta","start":"16:51","end":"18:14","startHours":16.856153739984567,"endHours":18.23715738469422,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:14","end":"19:51","startHours":18.23715738469422,"endHours":19.856153739984567,"quality":"neutral"},{"name":"Labha","start":"19:51","end":"21:29","startHours":19.856153739984567,"endHours":21.475150095274913,"quality":"auspicious"},{"name":"Amṛta","start":"21:29","end":"23:06","startHours":21.475150095274913,"endHours":23.094146450565255,"quality":"auspicious"},{"name":"Kāla","start":"23:06","end":"00:43","startHours":23.094146450565255,"endHours":24.7131428058556,"quality":"inauspicious"},{"name":"Śubha","start":"00:43","end":"02:20","startHours":24.7131428058556,"endHours":26.332139161145946,"quality":"auspicious"},{"name":"Roga","start":"02:20","end":"03:57","startHours":26.332139161145946,"endHours":27.951135516436292,"quality":"inauspicious"},{"name":"Udveg","start":"03:57","end":"05:34","startHours":27.951135516436292,"endHours":29.570131871726637,"quality":"inauspicious"},{"name":"Chala","start":"05:34","end":"07:11","startHours":29.570131871726637,"endHours":31.18912822701698,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:11","end":"08:11","startHours":7.189128227016981,"endHours":8.189128227016981,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:11","end":"09:11","startHours":8.189128227016981,"endHours":9.189128227016981,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:11","end":"10:11","startHours":9.189128227016981,"endHours":10.189128227016981,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:11","end":"11:11","startHours":10.189128227016981,"endHours":11.189128227016981,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:11","end":"12:11","startHours":11.189128227016981,"endHours":12.189128227016981,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:11","end":"13:11","startHours":12.189128227016981,"endHours":13.189128227016981,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:11","end":"14:11","startHours":13.189128227016981,"endHours":14.189128227016981,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:11","end":"15:11","startHours":14.189128227016981,"endHours":15.189128227016981,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:11","end":"16:11","startHours":15.189128227016981,"endHours":16.18912822701698,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:11","end":"17:11","startHours":16.18912822701698,"endHours":17.18912822701698,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:11","end":"18:11","startHours":17.18912822701698,"endHours":18.18912822701698,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:11","end":"19:11","startHours":18.18912822701698,"endHours":19.18912822701698,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:11","end":"20:11","startHours":19.18912822701698,"endHours":20.18912822701698,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:11","end":"21:11","startHours":20.18912822701698,"endHours":21.18912822701698,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:11","end":"22:11","startHours":21.18912822701698,"endHours":22.18912822701698,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:11","end":"23:11","startHours":22.18912822701698,"endHours":23.18912822701698,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:11","end":"00:11","startHours":23.18912822701698,"endHours":24.18912822701698,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:11","end":"01:11","startHours":24.18912822701698,"endHours":25.18912822701698,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:11","end":"02:11","startHours":25.18912822701698,"endHours":26.18912822701698,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:11","end":"03:11","startHours":26.18912822701698,"endHours":27.18912822701698,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:11","end":"04:11","startHours":27.18912822701698,"endHours":28.18912822701698,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:11","end":"05:11","startHours":28.18912822701698,"endHours":29.18912822701698,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:11","end":"06:11","startHours":29.18912822701698,"endHours":30.18912822701698,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:11","end":"07:11","startHours":30.18912822701698,"endHours":31.18912822701698,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-12.140986453533108,"eotMinutes":-14.492568351336082,"ayanamsa":26.02}},"calendars":{"vikram_samvat":2212,"vikram_samvatsara":"Vibhava","saka_samvat":2077,"saka_samvatsara":"Rākṣasa","bengali_samvat":1562,"malayalam_era":1331,"nanakshahi_year":686,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Pūrṇimā · Vikram 2212 Vibhava · Śaka 2077 Rākṣasa"},"festivals":[{"id":"magha-purnima","name":"Māghī Pūrṇimā","name_sanskrit":"माघी पूर्णिमा","tradition":"Pan-Hindu","significance":"Sacred snāna at Prayāga; Māgha-snāna culmination.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2}],"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":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","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 February 17, 2155 CE · Phoenix, USA · Vidhyamitra","description":"February 17, 2155 CE for Phoenix, USA: Śukla Pūrṇimā, sūryodaya 07:11, sūryāsta 18:14.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2155-02-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2155-02-17","sa":"https://sa.vidhyamitra.com/city/phoenix/2155-02-17","hi":"https://hi.vidhyamitra.com/city/phoenix/2155-02-17","x-default":"https://vidhyamitra.com/city/phoenix/2155-02-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T08:01:20.530Z","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":"2026-06-02T08:01:20.530Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T08:01:20.530Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}