{"id":"vidhyamitra:city-day:phoenix:2029-02-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2029-02-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2029-02-04","date_display":"February 4, 2029 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":2029,"month":2,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462171.770833,"kali_year":5130,"ahargana":1873706.2708,"sun":{"sidereal_longitude":291.2068,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":173.6769,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":242.4701,"elapsed_within_tithi_degrees":2.4701},"nakshatra":{"number":14,"name":"Citrā","pada":1,"moon_longitude":173.6769,"elapsed_within_degrees":0.3436},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":104.8838},"karana":{"half_tithi_index":40,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2029,"month":2,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2462171.770833,"ahargana":1873706.2708,"kali_year":5130,"ayanamsa_lahiri":24.2594,"grahas":{"sun":{"sidereal_longitude":291.23789,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"moon":{"sidereal_longitude":176.65309000000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false,"latitude":-4.4981},"mars":{"sidereal_longitude":168.52459,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":265.69498999999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":183.05249000000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":279.10329,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":10.935290000000009,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":262.0249,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":82.0249,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":2029,"month":2,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462171.770833,"kali_year":5130,"ahargana":1873706.2708,"sun":{"sidereal_longitude":291.2068,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":173.6769,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":242.4701,"elapsed_within_tithi_degrees":2.4701},"nakshatra":{"number":14,"name":"Citrā","pada":1,"moon_longitude":173.6769,"elapsed_within_degrees":0.3436},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":104.8838},"karana":{"half_tithi_index":40,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.498,"elongation":117.53},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.498,"opposition_distance":62.47}},"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":"07:22","sunsetLocal":"18:02","solarNoonLocal":"12:42","dayLengthHours":10.666848441840758,"dayLengthDisplay":"10 Hours 40 Mins 01 Secs","nightLengthDisplay":"13 Hours 19 Mins 59 Secs","moonriseLocal":"23:23","moonsetLocal":"10:45","rahuKala":{"name":"Rāhu Kāla","start":"16:42","end":"18:02","startHours":16.70653023849017,"endHours":18.039886293720265,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:42","end":"14:02","startHours":12.706462072799887,"endHours":14.039818128029982,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:22","end":"16:42","startHours":15.373174183260076,"endHours":16.70653023849017,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:52","end":"10:13","startHours":9.861969154975684,"endHours":10.21753076970371,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:49","end":"08:06","startHours":7.817489870289539,"endHours":8.10193916207196,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:21","end":"13:04","startHours":12.350900458071862,"endHours":13.062023687527912,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:57","end":"06:40","startHours":5.950791392967407,"endHours":6.661914622423457,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:29","end":"07:22","startHours":6.484133815059444,"endHours":7.373037851879507,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:29","end":"15:12","startHours":14.484270146440013,"endHours":15.195393375896064,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:50","end":"18:14","startHours":17.839886293720266,"endHours":18.239886293720264,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:02","end":"18:29","startHours":18.039886293720265,"endHours":18.484338312130298,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:47","end":"19:32","startHours":17.789886293720265,"endHours":19.539886293720265,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:21","end":"01:04","startHours":24.350900458071862,"endHours":25.062023687527912,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"07:22","end":"08:42","startHours":7.373037851879507,"endHours":8.706393907109602,"quality":"inauspicious"},{"name":"Chala","start":"08:42","end":"10:02","startHours":8.706393907109602,"endHours":10.039749962339696,"quality":"neutral"},{"name":"Labha","start":"10:02","end":"11:22","startHours":10.039749962339696,"endHours":11.373106017569793,"quality":"auspicious"},{"name":"Amṛta","start":"11:22","end":"12:42","startHours":11.373106017569793,"endHours":12.706462072799887,"quality":"auspicious"},{"name":"Kāla","start":"12:42","end":"14:02","startHours":12.706462072799887,"endHours":14.039818128029982,"quality":"inauspicious"},{"name":"Śubha","start":"14:02","end":"15:22","startHours":14.039818128029982,"endHours":15.373174183260076,"quality":"auspicious"},{"name":"Roga","start":"15:22","end":"16:42","startHours":15.373174183260076,"endHours":16.70653023849017,"quality":"inauspicious"},{"name":"Udveg","start":"16:42","end":"18:02","startHours":16.70653023849017,"endHours":18.039886293720265,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:02","end":"19:42","startHours":18.039886293720265,"endHours":19.70653023849017,"quality":"auspicious"},{"name":"Roga","start":"19:42","end":"21:22","startHours":19.70653023849017,"endHours":21.373174183260076,"quality":"inauspicious"},{"name":"Udveg","start":"21:22","end":"23:02","startHours":21.373174183260076,"endHours":23.03981812802998,"quality":"inauspicious"},{"name":"Chala","start":"23:02","end":"00:42","startHours":23.03981812802998,"endHours":24.706462072799887,"quality":"neutral"},{"name":"Labha","start":"00:42","end":"02:22","startHours":24.706462072799887,"endHours":26.37310601756979,"quality":"auspicious"},{"name":"Amṛta","start":"02:22","end":"04:02","startHours":26.37310601756979,"endHours":28.039749962339698,"quality":"auspicious"},{"name":"Kāla","start":"04:02","end":"05:42","startHours":28.039749962339698,"endHours":29.7063939071096,"quality":"inauspicious"},{"name":"Śubha","start":"05:42","end":"07:22","startHours":29.7063939071096,"endHours":31.37303785187951,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:22","end":"08:22","startHours":7.373037851879507,"endHours":8.373037851879507,"planetary_lord":"Sun"},{"name":"Hora 2","start":"08:22","end":"09:22","startHours":8.373037851879507,"endHours":9.373037851879507,"planetary_lord":"Mars"},{"name":"Hora 3","start":"09:22","end":"10:22","startHours":9.373037851879507,"endHours":10.373037851879507,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"10:22","end":"11:22","startHours":10.373037851879507,"endHours":11.373037851879507,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"11:22","end":"12:22","startHours":11.373037851879507,"endHours":12.373037851879507,"planetary_lord":"Moon"},{"name":"Hora 6","start":"12:22","end":"13:22","startHours":12.373037851879507,"endHours":13.373037851879507,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"13:22","end":"14:22","startHours":13.373037851879507,"endHours":14.373037851879507,"planetary_lord":"Venus"},{"name":"Hora 8","start":"14:22","end":"15:22","startHours":14.373037851879507,"endHours":15.373037851879507,"planetary_lord":"Sun"},{"name":"Hora 9","start":"15:22","end":"16:22","startHours":15.373037851879507,"endHours":16.37303785187951,"planetary_lord":"Mars"},{"name":"Hora 10","start":"16:22","end":"17:22","startHours":16.37303785187951,"endHours":17.37303785187951,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"17:22","end":"18:22","startHours":17.37303785187951,"endHours":18.37303785187951,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"18:22","end":"19:22","startHours":18.37303785187951,"endHours":19.37303785187951,"planetary_lord":"Moon"},{"name":"Hora 13","start":"19:22","end":"20:22","startHours":19.37303785187951,"endHours":20.37303785187951,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"20:22","end":"21:22","startHours":20.37303785187951,"endHours":21.37303785187951,"planetary_lord":"Venus"},{"name":"Hora 15","start":"21:22","end":"22:22","startHours":21.37303785187951,"endHours":22.37303785187951,"planetary_lord":"Sun"},{"name":"Hora 16","start":"22:22","end":"23:22","startHours":22.37303785187951,"endHours":23.37303785187951,"planetary_lord":"Mars"},{"name":"Hora 17","start":"23:22","end":"00:22","startHours":23.37303785187951,"endHours":24.37303785187951,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"00:22","end":"01:22","startHours":24.37303785187951,"endHours":25.37303785187951,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"01:22","end":"02:22","startHours":25.37303785187951,"endHours":26.37303785187951,"planetary_lord":"Moon"},{"name":"Hora 20","start":"02:22","end":"03:22","startHours":26.37303785187951,"endHours":27.37303785187951,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"03:22","end":"04:22","startHours":27.37303785187951,"endHours":28.37303785187951,"planetary_lord":"Venus"},{"name":"Hora 22","start":"04:22","end":"05:22","startHours":28.37303785187951,"endHours":29.37303785187951,"planetary_lord":"Sun"},{"name":"Hora 23","start":"05:22","end":"06:22","startHours":29.37303785187951,"endHours":30.37303785187951,"planetary_lord":"Mars"},{"name":"Hora 24","start":"06:22","end":"07:22","startHours":30.37303785187951,"endHours":31.37303785187951,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"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":-16.18786920485168,"eotMinutes":-14.091724367993354,"ayanamsa":24.2594}},"calendars":{"vikram_samvat":2086,"vikram_samvatsara":"Dundubhi","saka_samvat":1951,"saka_samvatsara":"Saumya","bengali_samvat":1436,"malayalam_era":1205,"nanakshahi_year":560,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Ṣaṣṭhī · Vikram 2086 Dundubhi · Śaka 1951 Saumya"},"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":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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, 2029 CE · Phoenix, USA · Vidhyamitra","description":"February 4, 2029 CE for Phoenix, USA: Kṛṣṇa Ṣaṣṭhī, sūryodaya 07:22, sūryāsta 18:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2029-02-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2029-02-04","sa":"https://sa.vidhyamitra.com/city/phoenix/2029-02-04","hi":"https://hi.vidhyamitra.com/city/phoenix/2029-02-04","x-default":"https://vidhyamitra.com/city/phoenix/2029-02-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T00:28:33.093Z","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":"2026-05-15T00:28:33.093Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T00:28:33.093Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}