{"id":"vidhyamitra:city-day:phoenix:1978-01-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1978-01-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1978-01-15","date_display":"January 15, 1978 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":1978,"month":1,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443523.770833,"kali_year":5079,"ahargana":1855058.2708,"sun":{"sidereal_longitude":270.9266,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":345.7114,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":74.7849,"elapsed_within_tithi_degrees":2.7849},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":345.7114,"elapsed_within_degrees":12.3781},"yoga":{"number":20,"name":"Śiva","sum_longitude":256.638},"karana":{"half_tithi_index":12,"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":1978,"month":1,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2443523.770833,"ahargana":1855058.2708,"kali_year":5079,"ayanamsa_lahiri":23.5462,"grahas":{"sun":{"sidereal_longitude":270.98658,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":348.31888,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false,"latitude":0.3429},"mars":{"sidereal_longitude":101.16217999999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":true},"mercury":{"sidereal_longitude":248.04197999999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":64.35357999999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":269.58277999999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":125.90348,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":170.0856,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":350.0856,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":1978,"month":1,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443523.770833,"kali_year":5079,"ahargana":1855058.2708,"sun":{"sidereal_longitude":270.9266,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":345.7114,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":74.7849,"elapsed_within_tithi_degrees":2.7849},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":345.7114,"elapsed_within_degrees":12.3781},"yoga":{"number":20,"name":"Śiva","sum_longitude":256.638},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.343,"elongation":74.785},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.343,"opposition_distance":105.215}},"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":"17:43","solarNoonLocal":"12:38","dayLengthHours":10.166546774076698,"dayLengthDisplay":"10 Hours 10 Mins 00 Secs","nightLengthDisplay":"13 Hours 50 Mins 00 Secs","moonriseLocal":"11:32","moonsetLocal":"00:02","rahuKala":{"name":"Rāhu Kāla","start":"16:26","end":"17:43","startHours":16.43988753104765,"endHours":17.710705877807236,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:38","end":"13:54","startHours":12.627432490768886,"endHours":13.898250837528474,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:10","end":"16:26","startHours":15.16906918428806,"endHours":16.43988753104765,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:55","end":"10:15","startHours":9.9163533510151,"endHours":10.255238243484325,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:58","end":"08:14","startHours":7.967765219317067,"endHours":8.238873133292445,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:17","end":"12:58","startHours":12.288547598299662,"endHours":12.96631738323811,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:11","end":"06:52","startHours":6.188619533853645,"endHours":6.866389318792091,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:42","end":"07:33","startHours":6.696946872557479,"endHours":7.5441591037305376,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:19","end":"15:00","startHours":14.321856953115002,"endHours":14.999626738053449,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:31","end":"17:55","startHours":17.510705877807236,"endHours":17.910705877807235,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:43","end":"18:08","startHours":17.710705877807236,"endHours":18.134311993393766,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:28","end":"19:13","startHours":17.460705877807236,"endHours":19.210705877807236,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:17","end":"00:58","startHours":24.28854759829966,"endHours":24.96631738323811,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"07:33","end":"08:49","startHours":7.5441591037305376,"endHours":8.814977450490124,"quality":"inauspicious"},{"name":"Chala","start":"08:49","end":"10:05","startHours":8.814977450490124,"endHours":10.085795797249713,"quality":"neutral"},{"name":"Labha","start":"10:05","end":"11:21","startHours":10.085795797249713,"endHours":11.3566141440093,"quality":"auspicious"},{"name":"Amṛta","start":"11:21","end":"12:38","startHours":11.3566141440093,"endHours":12.627432490768886,"quality":"auspicious"},{"name":"Kāla","start":"12:38","end":"13:54","startHours":12.627432490768886,"endHours":13.898250837528474,"quality":"inauspicious"},{"name":"Śubha","start":"13:54","end":"15:10","startHours":13.898250837528474,"endHours":15.16906918428806,"quality":"auspicious"},{"name":"Roga","start":"15:10","end":"16:26","startHours":15.16906918428806,"endHours":16.43988753104765,"quality":"inauspicious"},{"name":"Udveg","start":"16:26","end":"17:43","startHours":16.43988753104765,"endHours":17.710705877807236,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:43","end":"19:26","startHours":17.710705877807236,"endHours":19.43988753104765,"quality":"auspicious"},{"name":"Roga","start":"19:26","end":"21:10","startHours":19.43988753104765,"endHours":21.169069184288063,"quality":"inauspicious"},{"name":"Udveg","start":"21:10","end":"22:54","startHours":21.169069184288063,"endHours":22.898250837528472,"quality":"inauspicious"},{"name":"Chala","start":"22:54","end":"00:38","startHours":22.898250837528472,"endHours":24.627432490768886,"quality":"neutral"},{"name":"Labha","start":"00:38","end":"02:21","startHours":24.627432490768886,"endHours":26.3566141440093,"quality":"auspicious"},{"name":"Amṛta","start":"02:21","end":"04:05","startHours":26.3566141440093,"endHours":28.085795797249713,"quality":"auspicious"},{"name":"Kāla","start":"04:05","end":"05:49","startHours":28.085795797249713,"endHours":29.814977450490126,"quality":"inauspicious"},{"name":"Śubha","start":"05:49","end":"07:33","startHours":29.814977450490126,"endHours":31.544159103730536,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:33","end":"08:33","startHours":7.5441591037305376,"endHours":8.544159103730538,"planetary_lord":"Sun"},{"name":"Hora 2","start":"08:33","end":"09:33","startHours":8.544159103730538,"endHours":9.544159103730538,"planetary_lord":"Mars"},{"name":"Hora 3","start":"09:33","end":"10:33","startHours":9.544159103730538,"endHours":10.544159103730538,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"10:33","end":"11:33","startHours":10.544159103730538,"endHours":11.544159103730538,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"11:33","end":"12:33","startHours":11.544159103730538,"endHours":12.544159103730538,"planetary_lord":"Moon"},{"name":"Hora 6","start":"12:33","end":"13:33","startHours":12.544159103730538,"endHours":13.544159103730538,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"13:33","end":"14:33","startHours":13.544159103730538,"endHours":14.544159103730538,"planetary_lord":"Venus"},{"name":"Hora 8","start":"14:33","end":"15:33","startHours":14.544159103730538,"endHours":15.544159103730538,"planetary_lord":"Sun"},{"name":"Hora 9","start":"15:33","end":"16:33","startHours":15.544159103730538,"endHours":16.544159103730536,"planetary_lord":"Mars"},{"name":"Hora 10","start":"16:33","end":"17:33","startHours":16.544159103730536,"endHours":17.544159103730536,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"17:33","end":"18:33","startHours":17.544159103730536,"endHours":18.544159103730536,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"18:33","end":"19:33","startHours":18.544159103730536,"endHours":19.544159103730536,"planetary_lord":"Moon"},{"name":"Hora 13","start":"19:33","end":"20:33","startHours":19.544159103730536,"endHours":20.544159103730536,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"20:33","end":"21:33","startHours":20.544159103730536,"endHours":21.544159103730536,"planetary_lord":"Venus"},{"name":"Hora 15","start":"21:33","end":"22:33","startHours":21.544159103730536,"endHours":22.544159103730536,"planetary_lord":"Sun"},{"name":"Hora 16","start":"22:33","end":"23:33","startHours":22.544159103730536,"endHours":23.544159103730536,"planetary_lord":"Mars"},{"name":"Hora 17","start":"23:33","end":"00:33","startHours":23.544159103730536,"endHours":24.544159103730536,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"00:33","end":"01:33","startHours":24.544159103730536,"endHours":25.544159103730536,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"01:33","end":"02:33","startHours":25.544159103730536,"endHours":26.544159103730536,"planetary_lord":"Moon"},{"name":"Hora 20","start":"02:33","end":"03:33","startHours":26.544159103730536,"endHours":27.544159103730536,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"03:33","end":"04:33","startHours":27.544159103730536,"endHours":28.544159103730536,"planetary_lord":"Venus"},{"name":"Hora 22","start":"04:33","end":"05:33","startHours":28.544159103730536,"endHours":29.544159103730536,"planetary_lord":"Sun"},{"name":"Hora 23","start":"05:33","end":"06:33","startHours":29.544159103730536,"endHours":30.544159103730536,"planetary_lord":"Mars"},{"name":"Hora 24","start":"06:33","end":"07:33","startHours":30.544159103730536,"endHours":31.544159103730536,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-21.212423179382824,"eotMinutes":-9.349949446133257,"ayanamsa":23.5462}},"calendars":{"vikram_samvat":2035,"vikram_samvatsara":"Prajāpati","saka_samvat":1900,"saka_samvatsara":"Kālayukta","bengali_samvat":1385,"malayalam_era":1154,"nanakshahi_year":509,"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":"Makara (Tai)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Saptamī · Vikram 2035 Prajāpati · Śaka 1900 Kālayukta"},"festivals":[],"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 January 15, 1978 CE · Phoenix, USA · Vidhyamitra","description":"January 15, 1978 CE for Phoenix, USA: Śukla Saptamī, sūryodaya 07:33, sūryāsta 17:43.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1978-01-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1978-01-15","sa":"https://sa.vidhyamitra.com/city/phoenix/1978-01-15","hi":"https://hi.vidhyamitra.com/city/phoenix/1978-01-15","x-default":"https://vidhyamitra.com/city/phoenix/1978-01-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T17:29:48.083Z","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":"2026-05-31T17:29:48.083Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T17:29:48.083Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}