{"id":"vidhyamitra:city-day:phoenix:1985-01-29:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1985-01-29","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1985-01-29","date_display":"January 29, 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":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446094.770833,"kali_year":5086,"ahargana":1857629.2708,"sun":{"sidereal_longitude":285.4704,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":16.1389,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":90.6686,"elapsed_within_tithi_degrees":6.6686},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":16.1389,"elapsed_within_degrees":2.8056},"yoga":{"number":23,"name":"Śubha","sum_longitude":301.6093},"karana":{"half_tithi_index":15,"name":"Bava"},"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":1985,"month":1,"day":29,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446094.770833,"ahargana":1857629.2708,"kali_year":5086,"ayanamsa_lahiri":23.6445,"grahas":{"sun":{"sidereal_longitude":285.43734900000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":14.277549000000022,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false,"latitude":-1.3686},"mars":{"sidereal_longitude":333.01024899999993,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":271.483749,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":275.276649,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":332.51104899999996,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":212.93224899999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":33.8617,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":213.8617,"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":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446094.770833,"kali_year":5086,"ahargana":1857629.2708,"sun":{"sidereal_longitude":285.4704,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":16.1389,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":90.6686,"elapsed_within_tithi_degrees":6.6686},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":16.1389,"elapsed_within_degrees":2.8056},"yoga":{"number":23,"name":"Śubha","sum_longitude":301.6093},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.369,"elongation":90.669},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.369,"opposition_distance":89.331}},"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":"07:27","sunsetLocal":"17:56","solarNoonLocal":"12:41","dayLengthHours":10.492084648794844,"dayLengthDisplay":"10 Hours 29 Mins 32 Secs","nightLengthDisplay":"13 Hours 30 Mins 28 Secs","moonriseLocal":"11:56","moonsetLocal":"01:18","rahuKala":{"name":"Rāhu Kāla","start":"15:19","end":"16:38","startHours":15.314156528410614,"endHours":16.62566710950997,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:04","end":"11:23","startHours":10.068114204013192,"endHours":11.379624785112547,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:41","end":"14:00","startHours":12.691135366211903,"endHours":14.002645947311258,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:54","end":"10:15","startHours":9.893246126533278,"endHours":10.242982281493106,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:53","end":"08:10","startHours":7.882263235514266,"endHours":8.162052159482128,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:20","end":"13:02","startHours":12.341399211252075,"endHours":13.04087152117173,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:03","end":"06:45","startHours":6.046148421975168,"endHours":6.7456207318948245,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:34","end":"07:27","startHours":6.57075265441491,"endHours":7.445093041814481,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:08","startHours":14.439816141011043,"endHours":15.1392884509307,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:44","end":"18:08","startHours":17.737177690609325,"endHours":18.137177690609324,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:56","end":"18:22","startHours":17.937177690609325,"endHours":18.37434788430911,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:41","end":"19:26","startHours":17.687177690609325,"endHours":19.437177690609325,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:20","end":"01:02","startHours":24.341399211252075,"endHours":25.04087152117173,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:27","end":"08:45","startHours":7.445093041814481,"endHours":8.756603622913836,"quality":"inauspicious"},{"name":"Udveg","start":"08:45","end":"10:04","startHours":8.756603622913836,"endHours":10.068114204013192,"quality":"inauspicious"},{"name":"Chala","start":"10:04","end":"11:23","startHours":10.068114204013192,"endHours":11.379624785112547,"quality":"neutral"},{"name":"Labha","start":"11:23","end":"12:41","startHours":11.379624785112547,"endHours":12.691135366211903,"quality":"auspicious"},{"name":"Amṛta","start":"12:41","end":"14:00","startHours":12.691135366211903,"endHours":14.002645947311258,"quality":"auspicious"},{"name":"Kāla","start":"14:00","end":"15:19","startHours":14.002645947311258,"endHours":15.314156528410614,"quality":"inauspicious"},{"name":"Śubha","start":"15:19","end":"16:38","startHours":15.314156528410614,"endHours":16.62566710950997,"quality":"auspicious"},{"name":"Roga","start":"16:38","end":"17:56","startHours":16.62566710950997,"endHours":17.937177690609325,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:56","end":"19:38","startHours":17.937177690609325,"endHours":19.62566710950997,"quality":"inauspicious"},{"name":"Śubha","start":"19:38","end":"21:19","startHours":19.62566710950997,"endHours":21.314156528410614,"quality":"auspicious"},{"name":"Roga","start":"21:19","end":"23:00","startHours":21.314156528410614,"endHours":23.002645947311258,"quality":"inauspicious"},{"name":"Udveg","start":"23:00","end":"00:41","startHours":23.002645947311258,"endHours":24.691135366211903,"quality":"inauspicious"},{"name":"Chala","start":"00:41","end":"02:23","startHours":24.691135366211903,"endHours":26.379624785112547,"quality":"neutral"},{"name":"Labha","start":"02:23","end":"04:04","startHours":26.379624785112547,"endHours":28.06811420401319,"quality":"auspicious"},{"name":"Amṛta","start":"04:04","end":"05:45","startHours":28.06811420401319,"endHours":29.756603622913836,"quality":"auspicious"},{"name":"Kāla","start":"05:45","end":"07:27","startHours":29.756603622913836,"endHours":31.44509304181448,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:27","end":"08:27","startHours":7.445093041814481,"endHours":8.44509304181448,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:27","end":"09:27","startHours":8.44509304181448,"endHours":9.44509304181448,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:27","end":"10:27","startHours":9.44509304181448,"endHours":10.44509304181448,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:27","end":"11:27","startHours":10.44509304181448,"endHours":11.44509304181448,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:27","end":"12:27","startHours":11.44509304181448,"endHours":12.44509304181448,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:27","end":"13:27","startHours":12.44509304181448,"endHours":13.44509304181448,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:27","end":"14:27","startHours":13.44509304181448,"endHours":14.44509304181448,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:27","end":"15:27","startHours":14.44509304181448,"endHours":15.44509304181448,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:27","end":"16:27","startHours":15.44509304181448,"endHours":16.44509304181448,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:27","end":"17:27","startHours":16.44509304181448,"endHours":17.44509304181448,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:27","end":"18:27","startHours":17.44509304181448,"endHours":18.44509304181448,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:27","end":"19:27","startHours":18.44509304181448,"endHours":19.44509304181448,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:27","end":"20:27","startHours":19.44509304181448,"endHours":20.44509304181448,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:27","end":"21:27","startHours":20.44509304181448,"endHours":21.44509304181448,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:27","end":"22:27","startHours":21.44509304181448,"endHours":22.44509304181448,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:27","end":"23:27","startHours":22.44509304181448,"endHours":23.44509304181448,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:27","end":"00:27","startHours":23.44509304181448,"endHours":24.44509304181448,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:27","end":"01:27","startHours":24.44509304181448,"endHours":25.44509304181448,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:27","end":"02:27","startHours":25.44509304181448,"endHours":26.44509304181448,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:27","end":"03:27","startHours":26.44509304181448,"endHours":27.44509304181448,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:27","end":"04:27","startHours":27.44509304181448,"endHours":28.44509304181448,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:27","end":"05:27","startHours":28.44509304181448,"endHours":29.44509304181448,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:27","end":"06:27","startHours":29.44509304181448,"endHours":30.44509304181448,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:27","end":"07:27","startHours":30.44509304181448,"endHours":31.44509304181448,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-17.98321084745719,"eotMinutes":-13.172121972714217,"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","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Aṣṭamī · Vikram 2042 Bahudhānya · Śaka 1907 Krodhana"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"bhishma-ashtami","name":"Bhīṣmāṣṭamī","name_sanskrit":"भीष्माष्टमी","tradition":"Pan-Hindu","associated_deity":"Bhīṣma Pitāmaha","significance":"Bhīṣma's mahaprasthāna anniversary (Māgha Śukla 8); Bhīṣma-tarpaṇa.","vrata":true,"detection":{"tithi_number":8,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2,"sources":["Mahābhārata, Anuśāsana Parva"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"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":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","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 29, 1985 CE · Phoenix, USA · Vidhyamitra","description":"January 29, 1985 CE for Phoenix, USA: Śukla Aṣṭamī, sūryodaya 07:27, sūryāsta 17:56.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1985-01-29","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1985-01-29","sa":"https://sa.vidhyamitra.com/city/phoenix/1985-01-29","hi":"https://hi.vidhyamitra.com/city/phoenix/1985-01-29","x-default":"https://vidhyamitra.com/city/phoenix/1985-01-29"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-24T13:30:44.957Z","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":"2026-05-24T13:30:44.957Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-24T13:30:44.957Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}