{"id":"vidhyamitra:city-day:phoenix:1979-01-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1979-01-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1979-01-12","date_display":"January 12, 1979 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":1979,"month":1,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443885.770833,"kali_year":5080,"ahargana":1855420.2708,"sun":{"sidereal_longitude":267.5794,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":73.9723,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":166.3929,"elapsed_within_tithi_degrees":10.3929},"nakshatra":{"number":6,"name":"Ārdrā","pada":3,"moon_longitude":73.9723,"elapsed_within_degrees":7.3057},"yoga":{"number":26,"name":"Indra","sum_longitude":341.5518},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1979,"month":1,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2443885.770833,"ahargana":1855420.2708,"kali_year":5080,"ayanamsa_lahiri":23.5601,"grahas":{"sun":{"sidereal_longitude":267.668849,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":73.85614900000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false,"latitude":-4.3832},"mars":{"sidereal_longitude":269.97574899999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":251.20864900000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":101.81464900000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":true},"venus":{"sidereal_longitude":221.17594899999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":139.96524899999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":150.9051,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":330.9051,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"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":1979,"month":1,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443885.770833,"kali_year":5080,"ahargana":1855420.2708,"sun":{"sidereal_longitude":267.5794,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":73.9723,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":166.3929,"elapsed_within_tithi_degrees":10.3929},"nakshatra":{"number":6,"name":"Ārdrā","pada":3,"moon_longitude":73.9723,"elapsed_within_degrees":7.3057},"yoga":{"number":26,"name":"Indra","sum_longitude":341.5518},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.383,"elongation":166.393},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.383,"opposition_distance":13.607}},"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":10.109552101295314,"dayLengthDisplay":"10 Hours 06 Mins 34 Secs","nightLengthDisplay":"13 Hours 53 Mins 26 Secs","moonriseLocal":"16:32","moonsetLocal":"06:50","rahuKala":{"name":"Rāhu Kāla","start":"11:21","end":"12:37","startHours":11.345664031277714,"endHours":12.60935804393963,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:08","end":"16:24","startHours":15.136746069263456,"endHours":16.40044008192537,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:49","end":"10:05","startHours":8.818276005953885,"endHours":10.081970018615799,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:55","end":"10:15","startHours":9.91347748359421,"endHours":10.250462553637387,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:59","end":"08:15","startHours":7.975813330845942,"endHours":8.245401386880484,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:16","end":"12:57","startHours":12.272372973896452,"endHours":12.946343113982806,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:12","end":"06:53","startHours":6.206641713119263,"endHours":6.880611853205616,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:43","end":"07:33","startHours":6.712119318184028,"endHours":7.554581993291971,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:18","end":"14:58","startHours":14.294283394155514,"endHours":14.968253534241867,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:28","end":"17:52","startHours":17.464134094587287,"endHours":17.864134094587286,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:40","end":"18:05","startHours":17.664134094587286,"endHours":18.08536543214126,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:25","end":"19:10","startHours":17.414134094587286,"endHours":19.164134094587286,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:16","end":"00:57","startHours":24.272372973896452,"endHours":24.946343113982806,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:33","end":"08:49","startHours":7.554581993291971,"endHours":8.818276005953885,"quality":"neutral"},{"name":"Labha","start":"08:49","end":"10:05","startHours":8.818276005953885,"endHours":10.081970018615799,"quality":"auspicious"},{"name":"Amṛta","start":"10:05","end":"11:21","startHours":10.081970018615799,"endHours":11.345664031277714,"quality":"auspicious"},{"name":"Kāla","start":"11:21","end":"12:37","startHours":11.345664031277714,"endHours":12.60935804393963,"quality":"inauspicious"},{"name":"Śubha","start":"12:37","end":"13:52","startHours":12.60935804393963,"endHours":13.873052056601543,"quality":"auspicious"},{"name":"Roga","start":"13:52","end":"15:08","startHours":13.873052056601543,"endHours":15.136746069263456,"quality":"inauspicious"},{"name":"Udveg","start":"15:08","end":"16:24","startHours":15.136746069263456,"endHours":16.40044008192537,"quality":"inauspicious"},{"name":"Chala","start":"16:24","end":"17:40","startHours":16.40044008192537,"endHours":17.664134094587286,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:40","end":"19:24","startHours":17.664134094587286,"endHours":19.40044008192537,"quality":"inauspicious"},{"name":"Udveg","start":"19:24","end":"21:08","startHours":19.40044008192537,"endHours":21.13674606926346,"quality":"inauspicious"},{"name":"Chala","start":"21:08","end":"22:52","startHours":21.13674606926346,"endHours":22.873052056601544,"quality":"neutral"},{"name":"Labha","start":"22:52","end":"00:37","startHours":22.873052056601544,"endHours":24.60935804393963,"quality":"auspicious"},{"name":"Amṛta","start":"00:37","end":"02:21","startHours":24.60935804393963,"endHours":26.345664031277714,"quality":"auspicious"},{"name":"Kāla","start":"02:21","end":"04:05","startHours":26.345664031277714,"endHours":28.0819700186158,"quality":"inauspicious"},{"name":"Śubha","start":"04:05","end":"05:49","startHours":28.0819700186158,"endHours":29.818276005953887,"quality":"auspicious"},{"name":"Roga","start":"05:49","end":"07:33","startHours":29.818276005953887,"endHours":31.554581993291972,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:33","end":"08:33","startHours":7.554581993291971,"endHours":8.554581993291972,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:33","end":"09:33","startHours":8.554581993291972,"endHours":9.554581993291972,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:33","end":"10:33","startHours":9.554581993291972,"endHours":10.554581993291972,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:33","end":"11:33","startHours":10.554581993291972,"endHours":11.554581993291972,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:33","end":"12:33","startHours":11.554581993291972,"endHours":12.554581993291972,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:33","end":"13:33","startHours":12.554581993291972,"endHours":13.554581993291972,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:33","end":"14:33","startHours":13.554581993291972,"endHours":14.554581993291972,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:33","end":"15:33","startHours":14.554581993291972,"endHours":15.554581993291972,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:33","end":"16:33","startHours":15.554581993291972,"endHours":16.554581993291972,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:33","end":"17:33","startHours":16.554581993291972,"endHours":17.554581993291972,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:33","end":"18:33","startHours":17.554581993291972,"endHours":18.554581993291972,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:33","end":"19:33","startHours":18.554581993291972,"endHours":19.554581993291972,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:33","end":"20:33","startHours":19.554581993291972,"endHours":20.554581993291972,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:33","end":"21:33","startHours":20.554581993291972,"endHours":21.554581993291972,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:33","end":"22:33","startHours":21.554581993291972,"endHours":22.554581993291972,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:33","end":"23:33","startHours":22.554581993291972,"endHours":23.554581993291972,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:33","end":"00:33","startHours":23.554581993291972,"endHours":24.554581993291972,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:33","end":"01:33","startHours":24.554581993291972,"endHours":25.554581993291972,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:33","end":"02:33","startHours":25.554581993291972,"endHours":26.554581993291972,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:33","end":"03:33","startHours":26.554581993291972,"endHours":27.554581993291972,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:33","end":"04:33","startHours":27.554581993291972,"endHours":28.554581993291972,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:33","end":"05:33","startHours":28.554581993291972,"endHours":29.554581993291972,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:33","end":"06:33","startHours":29.554581993291972,"endHours":30.554581993291972,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:33","end":"07:33","startHours":30.554581993291972,"endHours":31.554581993291972,"planetary_lord":"Mars"}],"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","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"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":-21.76143015634357,"eotMinutes":-8.265482636377905,"ayanamsa":23.5601}},"calendars":{"vikram_samvat":2036,"vikram_samvatsara":"Aṅgirasa","saka_samvat":1901,"saka_samvatsara":"Siddhārthī","bengali_samvat":1386,"malayalam_era":1155,"nanakshahi_year":510,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","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":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Caturdaśī · Vikram 2036 Aṅgirasa · Śaka 1901 Siddhārthī"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 January 12, 1979 CE · Phoenix, USA · Vidhyamitra","description":"January 12, 1979 CE for Phoenix, USA: Śukla Caturdaśī, sūryodaya 07:33, sūryāsta 17:40.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1979-01-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1979-01-12","sa":"https://sa.vidhyamitra.com/city/phoenix/1979-01-12","hi":"https://hi.vidhyamitra.com/city/phoenix/1979-01-12","x-default":"https://vidhyamitra.com/city/phoenix/1979-01-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T07:08:07.643Z","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":"2026-06-03T07:08:07.643Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T07:08:07.643Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}