{"id":"vidhyamitra:city-day:phoenix:1985-02-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1985-02-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1985-02-20","date_display":"February 20, 1985 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":1985,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446116.770833,"kali_year":5086,"ahargana":1857651.2708,"sun":{"sidereal_longitude":307.8621,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":312.5155,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":4.6534,"elapsed_within_tithi_degrees":4.6534},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":312.5155,"elapsed_within_degrees":5.8488},"yoga":{"number":20,"name":"Śiva","sum_longitude":260.3775},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1985,"month":2,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446116.770833,"ahargana":1857651.2708,"kali_year":5086,"ayanamsa_lahiri":23.6454,"grahas":{"sun":{"sidereal_longitude":307.704609,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":310.54490899999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false,"latitude":-4.4339},"mars":{"sidereal_longitude":349.509909,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":308.48150899999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":280.279809,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"venus":{"sidereal_longitude":350.883509,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":213.90850899999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":32.696,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":212.696,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","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":1985,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446116.770833,"kali_year":5086,"ahargana":1857651.2708,"sun":{"sidereal_longitude":307.8621,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":312.5155,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":4.6534,"elapsed_within_tithi_degrees":4.6534},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":312.5155,"elapsed_within_degrees":5.8488},"yoga":{"number":20,"name":"Śiva","sum_longitude":260.3775},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.434,"elongation":4.653},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.434,"opposition_distance":175.347}},"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":"07:08","sunsetLocal":"18:17","solarNoonLocal":"12:43","dayLengthHours":11.153519347780659,"dayLengthDisplay":"11 Hours 09 Mins 13 Secs","nightLengthDisplay":"12 Hours 50 Mins 47 Secs","moonriseLocal":"07:18","moonsetLocal":"18:30","rahuKala":{"name":"Rāhu Kāla","start":"12:43","end":"14:06","startHours":12.70965575074537,"endHours":14.10384566921795,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:32","end":"09:55","startHours":8.52708599532762,"endHours":9.921275913800205,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:19","end":"12:43","startHours":11.315465832272785,"endHours":12.70965575074537,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:44","end":"10:06","startHours":9.735383924670526,"endHours":10.10716790292988,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:36","end":"07:54","startHours":7.597626049679233,"endHours":7.895053232286718,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:20","end":"13:05","startHours":12.337871772486015,"endHours":13.081439729004725,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:39","end":"06:23","startHours":5.645760163817618,"endHours":6.389328120336328,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:12","end":"07:08","startHours":6.203436131206651,"endHours":7.132896076855039,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:34","end":"15:19","startHours":14.568575642042145,"endHours":15.312143598560855,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:05","end":"18:29","startHours":18.0864154246357,"endHours":18.486415424635698,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:17","end":"18:45","startHours":18.2864154246357,"endHours":18.751145397459894,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:02","end":"19:47","startHours":18.0364154246357,"endHours":19.7864154246357,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:20","end":"01:05","startHours":24.337871772486015,"endHours":25.081439729004725,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:08","end":"08:32","startHours":7.132896076855039,"endHours":8.52708599532762,"quality":"auspicious"},{"name":"Amṛta","start":"08:32","end":"09:55","startHours":8.52708599532762,"endHours":9.921275913800205,"quality":"auspicious"},{"name":"Kāla","start":"09:55","end":"11:19","startHours":9.921275913800205,"endHours":11.315465832272785,"quality":"inauspicious"},{"name":"Śubha","start":"11:19","end":"12:43","startHours":11.315465832272785,"endHours":12.70965575074537,"quality":"auspicious"},{"name":"Roga","start":"12:43","end":"14:06","startHours":12.70965575074537,"endHours":14.10384566921795,"quality":"inauspicious"},{"name":"Udveg","start":"14:06","end":"15:30","startHours":14.10384566921795,"endHours":15.498035587690534,"quality":"inauspicious"},{"name":"Chala","start":"15:30","end":"16:54","startHours":15.498035587690534,"endHours":16.892225506163115,"quality":"neutral"},{"name":"Labha","start":"16:54","end":"18:17","startHours":16.892225506163115,"endHours":18.2864154246357,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:17","end":"19:54","startHours":18.2864154246357,"endHours":19.892225506163115,"quality":"inauspicious"},{"name":"Chala","start":"19:54","end":"21:30","startHours":19.892225506163115,"endHours":21.498035587690534,"quality":"neutral"},{"name":"Labha","start":"21:30","end":"23:06","startHours":21.498035587690534,"endHours":23.103845669217954,"quality":"auspicious"},{"name":"Amṛta","start":"23:06","end":"00:43","startHours":23.103845669217954,"endHours":24.70965575074537,"quality":"auspicious"},{"name":"Kāla","start":"00:43","end":"02:19","startHours":24.70965575074537,"endHours":26.315465832272785,"quality":"inauspicious"},{"name":"Śubha","start":"02:19","end":"03:55","startHours":26.315465832272785,"endHours":27.921275913800205,"quality":"auspicious"},{"name":"Roga","start":"03:55","end":"05:32","startHours":27.921275913800205,"endHours":29.527085995327624,"quality":"inauspicious"},{"name":"Udveg","start":"05:32","end":"07:08","startHours":29.527085995327624,"endHours":31.13289607685504,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:08","end":"08:08","startHours":7.132896076855039,"endHours":8.13289607685504,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:08","end":"09:08","startHours":8.13289607685504,"endHours":9.13289607685504,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:08","end":"10:08","startHours":9.13289607685504,"endHours":10.13289607685504,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:08","end":"11:08","startHours":10.13289607685504,"endHours":11.13289607685504,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:08","end":"12:08","startHours":11.13289607685504,"endHours":12.13289607685504,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:08","end":"13:08","startHours":12.13289607685504,"endHours":13.13289607685504,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:08","end":"14:08","startHours":13.13289607685504,"endHours":14.13289607685504,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:08","end":"15:08","startHours":14.13289607685504,"endHours":15.13289607685504,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:08","end":"16:08","startHours":15.13289607685504,"endHours":16.13289607685504,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:08","end":"17:08","startHours":16.13289607685504,"endHours":17.13289607685504,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:08","end":"18:08","startHours":17.13289607685504,"endHours":18.13289607685504,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:08","end":"19:08","startHours":18.13289607685504,"endHours":19.13289607685504,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:08","end":"20:08","startHours":19.13289607685504,"endHours":20.13289607685504,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:08","end":"21:08","startHours":20.13289607685504,"endHours":21.13289607685504,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:08","end":"22:08","startHours":21.13289607685504,"endHours":22.13289607685504,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:08","end":"23:08","startHours":22.13289607685504,"endHours":23.13289607685504,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:08","end":"00:08","startHours":23.13289607685504,"endHours":24.13289607685504,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:08","end":"01:08","startHours":24.13289607685504,"endHours":25.13289607685504,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:08","end":"02:08","startHours":25.13289607685504,"endHours":26.13289607685504,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:08","end":"03:08","startHours":26.13289607685504,"endHours":27.13289607685504,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:08","end":"04:08","startHours":27.13289607685504,"endHours":28.13289607685504,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:08","end":"05:08","startHours":28.13289607685504,"endHours":29.13289607685504,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:08","end":"06:08","startHours":29.13289607685504,"endHours":30.13289607685504,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:08","end":"07:08","startHours":30.13289607685504,"endHours":31.13289607685504,"planetary_lord":"Sun"}],"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","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"South-West","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-10.993398901654352,"eotMinutes":-14.28334504472219,"ayanamsa":23.6454}},"calendars":{"vikram_samvat":2042,"vikram_samvatsara":"Bahudhānya","saka_samvat":1907,"saka_samvatsara":"Krodhana","bengali_samvat":1392,"malayalam_era":1161,"nanakshahi_year":516,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Phālguna","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Pratipada · Vikram 2042 Bahudhānya · Śaka 1907 Krodhana"},"festivals":[],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 20, 1985 CE · Phoenix, USA · Vidhyamitra","description":"February 20, 1985 CE for Phoenix, USA: Śukla Pratipada, sūryodaya 07:08, sūryāsta 18:17.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1985-02-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1985-02-20","sa":"https://sa.vidhyamitra.com/city/phoenix/1985-02-20","hi":"https://hi.vidhyamitra.com/city/phoenix/1985-02-20","x-default":"https://vidhyamitra.com/city/phoenix/1985-02-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T01:50:15.507Z","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":"2026-06-02T01:50:15.507Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T01:50:15.507Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}