{"id":"vidhyamitra:city-day:phoenix:2011-01-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2011-01-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-01-27","date_display":"January 27, 2011 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":2011,"month":1,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455588.770833,"kali_year":5112,"ahargana":1867123.2708,"sun":{"sidereal_longitude":282.6792,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":196.52,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":273.8408,"elapsed_within_tithi_degrees":9.8408},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":196.52,"elapsed_within_degrees":9.8533},"yoga":{"number":9,"name":"Śūla","sum_longitude":119.1992},"karana":{"half_tithi_index":45,"name":"Kaulava"},"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":2011,"month":1,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455588.770833,"ahargana":1867123.2708,"kali_year":5112,"ayanamsa_lahiri":24.0077,"grahas":{"sun":{"sidereal_longitude":282.725409,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"moon":{"sidereal_longitude":199.09810900000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false,"latitude":-3.6533},"mars":{"sidereal_longitude":284.54900899999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":263.98380899999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":336.832709,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":236.57930899999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":172.97120900000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":250.8239,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":70.8239,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"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":2011,"month":1,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455588.770833,"kali_year":5112,"ahargana":1867123.2708,"sun":{"sidereal_longitude":282.6792,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":196.52,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":273.8408,"elapsed_within_tithi_degrees":9.8408},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":196.52,"elapsed_within_degrees":9.8533},"yoga":{"number":9,"name":"Śūla","sum_longitude":119.1992},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.653,"elongation":86.159},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.653,"opposition_distance":93.841}},"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":"07:28","sunsetLocal":"17:54","solarNoonLocal":"12:41","dayLengthHours":10.432315615394444,"dayLengthDisplay":"10 Hours 25 Mins 56 Secs","nightLengthDisplay":"13 Hours 34 Mins 04 Secs","moonriseLocal":"01:47","moonsetLocal":"12:26","rahuKala":{"name":"Rāhu Kāla","start":"13:59","end":"15:18","startHours":13.98838621037229,"endHours":15.292425662296594,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:28","end":"08:46","startHours":7.468188950750762,"endHours":8.772228402675069,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:05","end":"11:23","startHours":10.076267854599372,"endHours":11.38030730652368,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:54","end":"10:15","startHours":9.902395927676132,"endHours":10.250139781522615,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:54","end":"08:11","startHours":7.902868768058864,"endHours":8.181063851136049,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:20","end":"13:02","startHours":12.336602904601502,"endHours":13.032090612294464,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:05","end":"06:46","startHours":6.077213535364836,"endHours":6.772701243057799,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:36","end":"07:28","startHours":6.598829316134559,"endHours":7.468188950750762,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:07","startHours":14.423066027680392,"endHours":15.118553735373355,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:42","end":"18:06","startHours":17.700504566145206,"endHours":18.100504566145204,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:54","end":"18:20","startHours":17.900504566145205,"endHours":18.335184383453306,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:39","end":"19:24","startHours":17.650504566145205,"endHours":19.400504566145205,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:20","end":"01:02","startHours":24.336602904601502,"endHours":25.032090612294464,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:28","end":"08:46","startHours":7.468188950750762,"endHours":8.772228402675069,"quality":"auspicious"},{"name":"Roga","start":"08:46","end":"10:05","startHours":8.772228402675069,"endHours":10.076267854599372,"quality":"inauspicious"},{"name":"Udveg","start":"10:05","end":"11:23","startHours":10.076267854599372,"endHours":11.38030730652368,"quality":"inauspicious"},{"name":"Chala","start":"11:23","end":"12:41","startHours":11.38030730652368,"endHours":12.684346758447983,"quality":"neutral"},{"name":"Labha","start":"12:41","end":"13:59","startHours":12.684346758447983,"endHours":13.98838621037229,"quality":"auspicious"},{"name":"Amṛta","start":"13:59","end":"15:18","startHours":13.98838621037229,"endHours":15.292425662296594,"quality":"auspicious"},{"name":"Kāla","start":"15:18","end":"16:36","startHours":15.292425662296594,"endHours":16.5964651142209,"quality":"inauspicious"},{"name":"Śubha","start":"16:36","end":"17:54","startHours":16.5964651142209,"endHours":17.900504566145205,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:54","end":"19:36","startHours":17.900504566145205,"endHours":19.596465114220898,"quality":"auspicious"},{"name":"Kāla","start":"19:36","end":"21:18","startHours":19.596465114220898,"endHours":21.292425662296594,"quality":"inauspicious"},{"name":"Śubha","start":"21:18","end":"22:59","startHours":21.292425662296594,"endHours":22.98838621037229,"quality":"auspicious"},{"name":"Roga","start":"22:59","end":"00:41","startHours":22.98838621037229,"endHours":24.684346758447983,"quality":"inauspicious"},{"name":"Udveg","start":"00:41","end":"02:23","startHours":24.684346758447983,"endHours":26.380307306523676,"quality":"inauspicious"},{"name":"Chala","start":"02:23","end":"04:05","startHours":26.380307306523676,"endHours":28.076267854599372,"quality":"neutral"},{"name":"Labha","start":"04:05","end":"05:46","startHours":28.076267854599372,"endHours":29.77222840267507,"quality":"auspicious"},{"name":"Amṛta","start":"05:46","end":"07:28","startHours":29.77222840267507,"endHours":31.46818895075076,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:28","end":"08:28","startHours":7.468188950750762,"endHours":8.468188950750761,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:28","end":"09:28","startHours":8.468188950750761,"endHours":9.468188950750761,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:28","end":"10:28","startHours":9.468188950750761,"endHours":10.468188950750761,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:28","end":"11:28","startHours":10.468188950750761,"endHours":11.468188950750761,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:28","end":"12:28","startHours":11.468188950750761,"endHours":12.468188950750761,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:28","end":"13:28","startHours":12.468188950750761,"endHours":13.468188950750761,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:28","end":"14:28","startHours":13.468188950750761,"endHours":14.468188950750761,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:28","end":"15:28","startHours":14.468188950750761,"endHours":15.468188950750761,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:28","end":"16:28","startHours":15.468188950750761,"endHours":16.46818895075076,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:28","end":"17:28","startHours":16.46818895075076,"endHours":17.46818895075076,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:28","end":"18:28","startHours":17.46818895075076,"endHours":18.46818895075076,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:28","end":"19:28","startHours":18.46818895075076,"endHours":19.46818895075076,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:28","end":"20:28","startHours":19.46818895075076,"endHours":20.46818895075076,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:28","end":"21:28","startHours":20.46818895075076,"endHours":21.46818895075076,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:28","end":"22:28","startHours":21.46818895075076,"endHours":22.46818895075076,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:28","end":"23:28","startHours":22.46818895075076,"endHours":23.46818895075076,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:28","end":"00:28","startHours":23.46818895075076,"endHours":24.46818895075076,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:28","end":"01:28","startHours":24.46818895075076,"endHours":25.46818895075076,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:28","end":"02:28","startHours":25.46818895075076,"endHours":26.46818895075076,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:28","end":"03:28","startHours":26.46818895075076,"endHours":27.46818895075076,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:28","end":"04:28","startHours":27.46818895075076,"endHours":28.46818895075076,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:28","end":"05:28","startHours":28.46818895075076,"endHours":29.46818895075076,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:28","end":"06:28","startHours":29.46818895075076,"endHours":30.46818895075076,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:28","end":"07:28","startHours":30.46818895075076,"endHours":31.46818895075076,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Dhūmra","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":-18.587636717150964,"eotMinutes":-12.76480550687915,"ayanamsa":24.0077}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Aṣṭamī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"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":"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":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","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 January 27, 2011 CE · Phoenix, USA · Vidhyamitra","description":"January 27, 2011 CE for Phoenix, USA: Kṛṣṇa Aṣṭamī, sūryodaya 07:28, sūryāsta 17:54.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2011-01-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2011-01-27","sa":"https://sa.vidhyamitra.com/city/phoenix/2011-01-27","hi":"https://hi.vidhyamitra.com/city/phoenix/2011-01-27","x-default":"https://vidhyamitra.com/city/phoenix/2011-01-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T19:00:49.003Z","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":"2026-05-15T19:00:49.003Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T19:00:49.003Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}