{"id":"vidhyamitra:city-day:phoenix:1920-01-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1920-01-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1920-01-13","date_display":"January 13, 1920 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":1920,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422336.770833,"kali_year":5021,"ahargana":1833871.2708,"sun":{"sidereal_longitude":268.8806,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":177.0907,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":268.21,"elapsed_within_tithi_degrees":4.21},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":177.0907,"elapsed_within_degrees":3.7573},"yoga":{"number":7,"name":"Sukarma","sum_longitude":85.9713},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1920,"month":1,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2422336.770833,"ahargana":1833871.2708,"kali_year":5021,"ayanamsa_lahiri":22.7359,"grahas":{"sun":{"sidereal_longitude":268.82147899999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":179.28757900000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false,"latitude":-2.6168},"mars":{"sidereal_longitude":180.52747900000008,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":255.50867900000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":113.439979,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":228.58657900000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":138.99617899999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":212.6749,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":32.6749,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":1920,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422336.770833,"kali_year":5021,"ahargana":1833871.2708,"sun":{"sidereal_longitude":268.8806,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":177.0907,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":268.21,"elapsed_within_tithi_degrees":4.21},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":177.0907,"elapsed_within_degrees":3.7573},"yoga":{"number":7,"name":"Sukarma","sum_longitude":85.9713},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.617,"elongation":91.79},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.617,"opposition_distance":88.21}},"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":"07:33","sunsetLocal":"17:40","solarNoonLocal":"12:37","dayLengthHours":10.114899514847204,"dayLengthDisplay":"10 Hours 06 Mins 54 Secs","nightLengthDisplay":"13 Hours 53 Mins 06 Secs","moonriseLocal":"00:59","moonsetLocal":"12:19","rahuKala":{"name":"Rāhu Kāla","start":"15:09","end":"16:25","startHours":15.144257070234692,"endHours":16.408619509590594,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:05","end":"11:21","startHours":10.08680731281109,"endHours":11.35116975216699,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:37","end":"13:53","startHours":12.615532191522892,"endHours":13.879894630878791,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:55","end":"10:15","startHours":9.918225654230303,"endHours":10.255388971391877,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:59","end":"08:15","startHours":7.9795365805512555,"endHours":8.249267234280515,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:17","end":"12:57","startHours":12.278368874361318,"endHours":12.952695508684466,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:13","end":"06:53","startHours":6.2094291654529945,"endHours":6.883755799776142,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:43","end":"07:33","startHours":6.715174141195355,"endHours":7.558082434099289,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:18","end":"14:59","startHours":14.301348777330759,"endHours":14.975675411653906,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:28","end":"17:52","startHours":17.472981948946494,"endHours":17.872981948946492,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:40","end":"18:06","startHours":17.672981948946493,"endHours":18.09443609539846,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:25","end":"19:10","startHours":17.422981948946493,"endHours":19.172981948946493,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:17","end":"00:57","startHours":24.27836887436132,"endHours":24.952695508684464,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:33","end":"08:49","startHours":7.558082434099289,"endHours":8.82244487345519,"quality":"inauspicious"},{"name":"Udveg","start":"08:49","end":"10:05","startHours":8.82244487345519,"endHours":10.08680731281109,"quality":"inauspicious"},{"name":"Chala","start":"10:05","end":"11:21","startHours":10.08680731281109,"endHours":11.35116975216699,"quality":"neutral"},{"name":"Labha","start":"11:21","end":"12:37","startHours":11.35116975216699,"endHours":12.615532191522892,"quality":"auspicious"},{"name":"Amṛta","start":"12:37","end":"13:53","startHours":12.615532191522892,"endHours":13.879894630878791,"quality":"auspicious"},{"name":"Kāla","start":"13:53","end":"15:09","startHours":13.879894630878791,"endHours":15.144257070234692,"quality":"inauspicious"},{"name":"Śubha","start":"15:09","end":"16:25","startHours":15.144257070234692,"endHours":16.408619509590594,"quality":"auspicious"},{"name":"Roga","start":"16:25","end":"17:40","startHours":16.408619509590594,"endHours":17.672981948946493,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:40","end":"19:25","startHours":17.672981948946493,"endHours":19.408619509590594,"quality":"inauspicious"},{"name":"Śubha","start":"19:25","end":"21:09","startHours":19.408619509590594,"endHours":21.14425707023469,"quality":"auspicious"},{"name":"Roga","start":"21:09","end":"22:53","startHours":21.14425707023469,"endHours":22.87989463087879,"quality":"inauspicious"},{"name":"Udveg","start":"22:53","end":"00:37","startHours":22.87989463087879,"endHours":24.61553219152289,"quality":"inauspicious"},{"name":"Chala","start":"00:37","end":"02:21","startHours":24.61553219152289,"endHours":26.35116975216699,"quality":"neutral"},{"name":"Labha","start":"02:21","end":"04:05","startHours":26.35116975216699,"endHours":28.08680731281109,"quality":"auspicious"},{"name":"Amṛta","start":"04:05","end":"05:49","startHours":28.08680731281109,"endHours":29.82244487345519,"quality":"auspicious"},{"name":"Kāla","start":"05:49","end":"07:33","startHours":29.82244487345519,"endHours":31.55808243409929,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:33","end":"08:33","startHours":7.558082434099289,"endHours":8.558082434099289,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:33","end":"09:33","startHours":8.558082434099289,"endHours":9.558082434099289,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:33","end":"10:33","startHours":9.558082434099289,"endHours":10.558082434099289,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:33","end":"11:33","startHours":10.558082434099289,"endHours":11.558082434099289,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:33","end":"12:33","startHours":11.558082434099289,"endHours":12.558082434099289,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:33","end":"13:33","startHours":12.558082434099289,"endHours":13.558082434099289,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:33","end":"14:33","startHours":13.558082434099289,"endHours":14.558082434099289,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:33","end":"15:33","startHours":14.558082434099289,"endHours":15.558082434099289,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:33","end":"16:33","startHours":15.558082434099289,"endHours":16.55808243409929,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:33","end":"17:33","startHours":16.55808243409929,"endHours":17.55808243409929,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:33","end":"18:33","startHours":17.55808243409929,"endHours":18.55808243409929,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:33","end":"19:33","startHours":18.55808243409929,"endHours":19.55808243409929,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:33","end":"20:33","startHours":19.55808243409929,"endHours":20.55808243409929,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:33","end":"21:33","startHours":20.55808243409929,"endHours":21.55808243409929,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:33","end":"22:33","startHours":21.55808243409929,"endHours":22.55808243409929,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:33","end":"23:33","startHours":22.55808243409929,"endHours":23.55808243409929,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:33","end":"00:33","startHours":23.55808243409929,"endHours":24.55808243409929,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:33","end":"01:33","startHours":24.55808243409929,"endHours":25.55808243409929,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:33","end":"02:33","startHours":25.55808243409929,"endHours":26.55808243409929,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:33","end":"03:33","startHours":26.55808243409929,"endHours":27.55808243409929,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:33","end":"04:33","startHours":27.55808243409929,"endHours":28.55808243409929,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:33","end":"05:33","startHours":28.55808243409929,"endHours":29.55808243409929,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:33","end":"06:33","startHours":29.55808243409929,"endHours":30.55808243409929,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:33","end":"07:33","startHours":30.55808243409929,"endHours":31.55808243409929,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"North","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-21.710134851508492,"eotMinutes":-8.635931491373626,"ayanamsa":22.7359}},"calendars":{"vikram_samvat":1977,"vikram_samvatsara":"Śrīmukha","saka_samvat":1842,"saka_samvatsara":"Raudra","bengali_samvat":1327,"malayalam_era":1096,"nanakshahi_year":451,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Aṣṭamī · Vikram 1977 Śrīmukha · Śaka 1842 Raudra"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi_eve_of_ingress":"Makara"},"precedence":4}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 13, 1920 CE · Phoenix, USA · Vidhyamitra","description":"January 13, 1920 CE for Phoenix, USA: Kṛṣṇa Aṣṭamī, sūryodaya 07:33, sūryāsta 17:40.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1920-01-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1920-01-13","sa":"https://sa.vidhyamitra.com/city/phoenix/1920-01-13","hi":"https://hi.vidhyamitra.com/city/phoenix/1920-01-13","x-default":"https://vidhyamitra.com/city/phoenix/1920-01-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T09:45:28.900Z","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":"2026-05-31T09:45:28.900Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T09:45:28.900Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}