{"id":"vidhyamitra:city-day:phoenix:2026-02-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2026-02-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2026-02-04","date_display":"February 4, 2026 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":2026,"month":2,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461075.770833,"kali_year":5127,"ahargana":1872610.2708,"sun":{"sidereal_longitude":290.9785,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":139.0018,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":208.0234,"elapsed_within_tithi_degrees":4.0234},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":139.0018,"elapsed_within_degrees":5.6685},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":69.9803},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"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":2026,"month":2,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461075.770833,"ahargana":1872610.2708,"kali_year":5127,"ayanamsa_lahiri":24.2175,"grahas":{"sun":{"sidereal_longitude":291.0040650000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"moon":{"sidereal_longitude":137.97886500000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false,"latitude":0.0859},"mars":{"sidereal_longitude":284.49596500000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":300.28316500000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":82.65826500000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":true},"venus":{"sidereal_longitude":297.427765,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":334.81586500000003,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":320.0962,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":140.0962,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":2026,"month":2,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461075.770833,"kali_year":5127,"ahargana":1872610.2708,"sun":{"sidereal_longitude":290.9785,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":139.0018,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":208.0234,"elapsed_within_tithi_degrees":4.0234},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":139.0018,"elapsed_within_degrees":5.6685},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":69.9803},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.086,"elongation":151.977},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.086,"opposition_distance":28.023}},"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":"07:23","sunsetLocal":"18:02","solarNoonLocal":"12:42","dayLengthHours":10.659021719507365,"dayLengthDisplay":"10 Hours 39 Mins 32 Secs","nightLengthDisplay":"13 Hours 20 Mins 28 Secs","moonriseLocal":"20:09","moonsetLocal":"08:52","rahuKala":{"name":"Rāhu Kāla","start":"12:42","end":"14:02","startHours":12.706462072799887,"endHours":14.038839787738308,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:43","end":"10:03","startHours":8.709328927984625,"endHours":10.041706642923046,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:22","end":"12:42","startHours":11.374084357861467,"endHours":12.706462072799887,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:52","end":"10:13","startHours":9.864056280931257,"endHours":10.219357004914835,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:49","end":"08:06","startHours":7.821077118025678,"endHours":8.105317697212541,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:21","end":"13:04","startHours":12.351161348816309,"endHours":13.061762796783466,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:57","end":"06:40","startHours":5.9557483171118895,"endHours":6.6663497650790475,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:29","end":"07:23","startHours":6.488699403087257,"endHours":7.376951213046205,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:29","end":"15:12","startHours":14.48296569271778,"endHours":15.193567140684937,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:50","end":"18:14","startHours":17.83597293255357,"endHours":18.23597293255357,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:02","end":"18:29","startHours":18.03597293255357,"endHours":18.480098837533042,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:47","end":"19:32","startHours":17.78597293255357,"endHours":19.53597293255357,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:21","end":"01:04","startHours":24.35116134881631,"endHours":25.061762796783466,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:23","end":"08:43","startHours":7.376951213046205,"endHours":8.709328927984625,"quality":"auspicious"},{"name":"Amṛta","start":"08:43","end":"10:03","startHours":8.709328927984625,"endHours":10.041706642923046,"quality":"auspicious"},{"name":"Kāla","start":"10:03","end":"11:22","startHours":10.041706642923046,"endHours":11.374084357861467,"quality":"inauspicious"},{"name":"Śubha","start":"11:22","end":"12:42","startHours":11.374084357861467,"endHours":12.706462072799887,"quality":"auspicious"},{"name":"Roga","start":"12:42","end":"14:02","startHours":12.706462072799887,"endHours":14.038839787738308,"quality":"inauspicious"},{"name":"Udveg","start":"14:02","end":"15:22","startHours":14.038839787738308,"endHours":15.371217502676728,"quality":"inauspicious"},{"name":"Chala","start":"15:22","end":"16:42","startHours":15.371217502676728,"endHours":16.70359521761515,"quality":"neutral"},{"name":"Labha","start":"16:42","end":"18:02","startHours":16.70359521761515,"endHours":18.03597293255357,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:02","end":"19:42","startHours":18.03597293255357,"endHours":19.70359521761515,"quality":"inauspicious"},{"name":"Chala","start":"19:42","end":"21:22","startHours":19.70359521761515,"endHours":21.37121750267673,"quality":"neutral"},{"name":"Labha","start":"21:22","end":"23:02","startHours":21.37121750267673,"endHours":23.038839787738308,"quality":"auspicious"},{"name":"Amṛta","start":"23:02","end":"00:42","startHours":23.038839787738308,"endHours":24.706462072799887,"quality":"auspicious"},{"name":"Kāla","start":"00:42","end":"02:22","startHours":24.706462072799887,"endHours":26.374084357861467,"quality":"inauspicious"},{"name":"Śubha","start":"02:22","end":"04:03","startHours":26.374084357861467,"endHours":28.041706642923046,"quality":"auspicious"},{"name":"Roga","start":"04:03","end":"05:43","startHours":28.041706642923046,"endHours":29.709328927984625,"quality":"inauspicious"},{"name":"Udveg","start":"05:43","end":"07:23","startHours":29.709328927984625,"endHours":31.376951213046205,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:23","end":"08:23","startHours":7.376951213046205,"endHours":8.376951213046205,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:23","end":"09:23","startHours":8.376951213046205,"endHours":9.376951213046205,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:23","end":"10:23","startHours":9.376951213046205,"endHours":10.376951213046205,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:23","end":"11:23","startHours":10.376951213046205,"endHours":11.376951213046205,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:23","end":"12:23","startHours":11.376951213046205,"endHours":12.376951213046205,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:23","end":"13:23","startHours":12.376951213046205,"endHours":13.376951213046205,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:23","end":"14:23","startHours":13.376951213046205,"endHours":14.376951213046205,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:23","end":"15:23","startHours":14.376951213046205,"endHours":15.376951213046205,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:23","end":"16:23","startHours":15.376951213046205,"endHours":16.376951213046205,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:23","end":"17:23","startHours":16.376951213046205,"endHours":17.376951213046205,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:23","end":"18:23","startHours":17.376951213046205,"endHours":18.376951213046205,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:23","end":"19:23","startHours":18.376951213046205,"endHours":19.376951213046205,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:23","end":"20:23","startHours":19.376951213046205,"endHours":20.376951213046205,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:23","end":"21:23","startHours":20.376951213046205,"endHours":21.376951213046205,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:23","end":"22:23","startHours":21.376951213046205,"endHours":22.376951213046205,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:23","end":"23:23","startHours":22.376951213046205,"endHours":23.376951213046205,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:23","end":"00:23","startHours":23.376951213046205,"endHours":24.376951213046205,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:23","end":"01:23","startHours":24.376951213046205,"endHours":25.376951213046205,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:23","end":"02:23","startHours":25.376951213046205,"endHours":26.376951213046205,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:23","end":"03:23","startHours":26.376951213046205,"endHours":27.376951213046205,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:23","end":"04:23","startHours":27.376951213046205,"endHours":28.376951213046205,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:23","end":"05:23","startHours":28.376951213046205,"endHours":29.376951213046205,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:23","end":"06:23","startHours":29.376951213046205,"endHours":30.376951213046205,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:23","end":"07:23","startHours":30.376951213046205,"endHours":31.376951213046205,"planetary_lord":"Sun"}],"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":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"West","rahuVasa":"South-West","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-16.269136901206345,"eotMinutes":-14.091724367993354,"ayanamsa":24.2175}},"calendars":{"vikram_samvat":2083,"vikram_samvatsara":"Siddhārthī","saka_samvat":1948,"saka_samvatsara":"Parābhava","bengali_samvat":1433,"malayalam_era":1202,"nanakshahi_year":557,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Tṛtīyā · Vikram 2083 Siddhārthī · Śaka 1948 Parābhava"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"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":[]},"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 4, 2026 CE · Phoenix, USA · Vidhyamitra","description":"February 4, 2026 CE for Phoenix, USA: Kṛṣṇa Tṛtīyā, sūryodaya 07:23, sūryāsta 18:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2026-02-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2026-02-04","sa":"https://sa.vidhyamitra.com/city/phoenix/2026-02-04","hi":"https://hi.vidhyamitra.com/city/phoenix/2026-02-04","x-default":"https://vidhyamitra.com/city/phoenix/2026-02-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T20:18:39.420Z","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":"2026-05-14T20:18:39.420Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T20:18:39.420Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}