{"id":"vidhyamitra:city-day:phoenix:1985-01-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1985-01-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1985-01-27","date_display":"January 27, 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":1,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446092.770833,"kali_year":5086,"ahargana":1857627.2708,"sun":{"sidereal_longitude":283.424,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":352.9207,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":69.4966,"elapsed_within_tithi_degrees":9.4966},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":352.9207,"elapsed_within_degrees":6.254},"yoga":{"number":21,"name":"Siddha","sum_longitude":276.3447},"karana":{"half_tithi_index":11,"name":"Taitila"},"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":1985,"month":1,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446092.770833,"ahargana":1857627.2708,"kali_year":5086,"ayanamsa_lahiri":23.6445,"grahas":{"sun":{"sidereal_longitude":283.40522599999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":350.67582600000003,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false,"latitude":-2.9533},"mars":{"sidereal_longitude":331.49782600000003,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":268.40312599999993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":274.81112600000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":330.565026,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":212.80702599999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":33.9677,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":213.9677,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"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":1,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446092.770833,"kali_year":5086,"ahargana":1857627.2708,"sun":{"sidereal_longitude":283.424,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":352.9207,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":69.4966,"elapsed_within_tithi_degrees":9.4966},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":352.9207,"elapsed_within_degrees":6.254},"yoga":{"number":21,"name":"Siddha","sum_longitude":276.3447},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.953,"elongation":69.497},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.953,"opposition_distance":110.503}},"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":10.440229004481672,"dayLengthDisplay":"10 Hours 26 Mins 25 Secs","nightLengthDisplay":"13 Hours 33 Mins 35 Secs","moonriseLocal":"10:52","moonsetLocal":"23:28","rahuKala":{"name":"Rāhu Kāla","start":"16:36","end":"17:54","startHours":16.59943263512861,"endHours":17.90446126068882,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:41","end":"13:59","startHours":12.684346758447983,"endHours":13.989375384008193,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:18","end":"16:36","startHours":15.294404009568403,"endHours":16.59943263512861,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:54","end":"10:15","startHours":9.900285690586205,"endHours":10.248293324068927,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:54","end":"08:11","startHours":7.899241798060551,"endHours":8.17764790484673,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:20","end":"13:02","startHours":12.33633912496526,"endHours":13.032354391930706,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:04","end":"06:46","startHours":6.072201722276258,"endHours":6.7682169892417035,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:36","end":"07:28","startHours":6.594213172500342,"endHours":7.464232256207148,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:07","startHours":14.424384925861595,"endHours":15.12040019282704,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:42","end":"18:06","startHours":17.70446126068882,"endHours":18.10446126068882,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:54","end":"18:20","startHours":17.90446126068882,"endHours":18.339470802542223,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:39","end":"19:24","startHours":17.65446126068882,"endHours":19.40446126068882,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:20","end":"01:02","startHours":24.33633912496526,"endHours":25.032354391930706,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"07:28","end":"08:46","startHours":7.464232256207148,"endHours":8.769260881767357,"quality":"inauspicious"},{"name":"Chala","start":"08:46","end":"10:04","startHours":8.769260881767357,"endHours":10.074289507327567,"quality":"neutral"},{"name":"Labha","start":"10:04","end":"11:23","startHours":10.074289507327567,"endHours":11.379318132887775,"quality":"auspicious"},{"name":"Amṛta","start":"11:23","end":"12:41","startHours":11.379318132887775,"endHours":12.684346758447983,"quality":"auspicious"},{"name":"Kāla","start":"12:41","end":"13:59","startHours":12.684346758447983,"endHours":13.989375384008193,"quality":"inauspicious"},{"name":"Śubha","start":"13:59","end":"15:18","startHours":13.989375384008193,"endHours":15.294404009568403,"quality":"auspicious"},{"name":"Roga","start":"15:18","end":"16:36","startHours":15.294404009568403,"endHours":16.59943263512861,"quality":"inauspicious"},{"name":"Udveg","start":"16:36","end":"17:54","startHours":16.59943263512861,"endHours":17.90446126068882,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:54","end":"19:36","startHours":17.90446126068882,"endHours":19.59943263512861,"quality":"auspicious"},{"name":"Roga","start":"19:36","end":"21:18","startHours":19.59943263512861,"endHours":21.294404009568403,"quality":"inauspicious"},{"name":"Udveg","start":"21:18","end":"22:59","startHours":21.294404009568403,"endHours":22.98937538400819,"quality":"inauspicious"},{"name":"Chala","start":"22:59","end":"00:41","startHours":22.98937538400819,"endHours":24.684346758447983,"quality":"neutral"},{"name":"Labha","start":"00:41","end":"02:23","startHours":24.684346758447983,"endHours":26.379318132887775,"quality":"auspicious"},{"name":"Amṛta","start":"02:23","end":"04:04","startHours":26.379318132887775,"endHours":28.074289507327563,"quality":"auspicious"},{"name":"Kāla","start":"04:04","end":"05:46","startHours":28.074289507327563,"endHours":29.769260881767355,"quality":"inauspicious"},{"name":"Śubha","start":"05:46","end":"07:28","startHours":29.769260881767355,"endHours":31.464232256207147,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:28","end":"08:28","startHours":7.464232256207148,"endHours":8.464232256207147,"planetary_lord":"Sun"},{"name":"Hora 2","start":"08:28","end":"09:28","startHours":8.464232256207147,"endHours":9.464232256207147,"planetary_lord":"Mars"},{"name":"Hora 3","start":"09:28","end":"10:28","startHours":9.464232256207147,"endHours":10.464232256207147,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"10:28","end":"11:28","startHours":10.464232256207147,"endHours":11.464232256207147,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"11:28","end":"12:28","startHours":11.464232256207147,"endHours":12.464232256207147,"planetary_lord":"Moon"},{"name":"Hora 6","start":"12:28","end":"13:28","startHours":12.464232256207147,"endHours":13.464232256207147,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"13:28","end":"14:28","startHours":13.464232256207147,"endHours":14.464232256207147,"planetary_lord":"Venus"},{"name":"Hora 8","start":"14:28","end":"15:28","startHours":14.464232256207147,"endHours":15.464232256207147,"planetary_lord":"Sun"},{"name":"Hora 9","start":"15:28","end":"16:28","startHours":15.464232256207147,"endHours":16.464232256207147,"planetary_lord":"Mars"},{"name":"Hora 10","start":"16:28","end":"17:28","startHours":16.464232256207147,"endHours":17.464232256207147,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"17:28","end":"18:28","startHours":17.464232256207147,"endHours":18.464232256207147,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"18:28","end":"19:28","startHours":18.464232256207147,"endHours":19.464232256207147,"planetary_lord":"Moon"},{"name":"Hora 13","start":"19:28","end":"20:28","startHours":19.464232256207147,"endHours":20.464232256207147,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"20:28","end":"21:28","startHours":20.464232256207147,"endHours":21.464232256207147,"planetary_lord":"Venus"},{"name":"Hora 15","start":"21:28","end":"22:28","startHours":21.464232256207147,"endHours":22.464232256207147,"planetary_lord":"Sun"},{"name":"Hora 16","start":"22:28","end":"23:28","startHours":22.464232256207147,"endHours":23.464232256207147,"planetary_lord":"Mars"},{"name":"Hora 17","start":"23:28","end":"00:28","startHours":23.464232256207147,"endHours":24.464232256207147,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"00:28","end":"01:28","startHours":24.464232256207147,"endHours":25.464232256207147,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"01:28","end":"02:28","startHours":25.464232256207147,"endHours":26.464232256207147,"planetary_lord":"Moon"},{"name":"Hora 20","start":"02:28","end":"03:28","startHours":26.464232256207147,"endHours":27.464232256207147,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"03:28","end":"04:28","startHours":27.464232256207147,"endHours":28.464232256207147,"planetary_lord":"Venus"},{"name":"Hora 22","start":"04:28","end":"05:28","startHours":28.464232256207147,"endHours":29.464232256207147,"planetary_lord":"Sun"},{"name":"Hora 23","start":"05:28","end":"06:28","startHours":29.464232256207147,"endHours":30.464232256207147,"planetary_lord":"Mars"},{"name":"Hora 24","start":"06:28","end":"07:28","startHours":30.464232256207147,"endHours":31.464232256207147,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"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":"Sushira","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-18.507900039008348,"eotMinutes":-12.76480550687915,"ayanamsa":23.6445}},"calendars":{"vikram_samvat":2042,"vikram_samvatsara":"Bahudhānya","saka_samvat":1907,"saka_samvatsara":"Krodhana","bengali_samvat":1392,"malayalam_era":1161,"nanakshahi_year":516,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Ṣaṣṭhī · Vikram 2042 Bahudhānya · Śaka 1907 Krodhana"},"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 27, 1985 CE · Phoenix, USA · Vidhyamitra","description":"January 27, 1985 CE for Phoenix, USA: Śukla Ṣaṣṭhī, sūryodaya 07:28, sūryāsta 17:54.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1985-01-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1985-01-27","sa":"https://sa.vidhyamitra.com/city/phoenix/1985-01-27","hi":"https://hi.vidhyamitra.com/city/phoenix/1985-01-27","x-default":"https://vidhyamitra.com/city/phoenix/1985-01-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T00:02:56.991Z","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":"2026-05-31T00:02:56.991Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T00:02:56.991Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}