{"id":"vidhyamitra:city-day:phoenix:1841-01-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1841-01-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1841-01-31","date_display":"January 31, 1841 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":1841,"month":1,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2393501.770833,"kali_year":4942,"ahargana":1805036.2708,"sun":{"sidereal_longitude":289.8249,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":30.4861,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":100.6612,"elapsed_within_tithi_degrees":4.6612},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":30.4861,"elapsed_within_degrees":3.8194},"yoga":{"number":25,"name":"Brahma","sum_longitude":320.311},"karana":{"half_tithi_index":16,"name":"Bālava"},"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":1841,"month":1,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2393501.770833,"ahargana":1805036.2708,"kali_year":4942,"ayanamsa_lahiri":21.6331,"grahas":{"sun":{"sidereal_longitude":289.42918800000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":26.829887999999983,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false,"latitude":4.5},"mars":{"sidereal_longitude":188.755988,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":287.790788,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":234.44818799999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":335.43008800000007,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":249.570788,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":300.4919,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":120.4919,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":1841,"month":1,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2393501.770833,"kali_year":4942,"ahargana":1805036.2708,"sun":{"sidereal_longitude":289.8249,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":30.4861,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":100.6612,"elapsed_within_tithi_degrees":4.6612},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":30.4861,"elapsed_within_degrees":3.8194},"yoga":{"number":25,"name":"Brahma","sum_longitude":320.311},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.5,"elongation":100.661},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.5,"opposition_distance":79.339}},"eclipse_window_40days":[{"offset_days":6,"type":"lunar","occurs":true,"moon_latitude":0.296,"opposition_distance":0.457}]},"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":"07:25","sunsetLocal":"17:58","solarNoonLocal":"12:42","dayLengthHours":10.544318991604051,"dayLengthDisplay":"10 Hours 32 Mins 40 Secs","nightLengthDisplay":"13 Hours 27 Mins 20 Secs","moonriseLocal":"12:21","moonsetLocal":"02:02","rahuKala":{"name":"Rāhu Kāla","start":"16:39","end":"17:58","startHours":16.65121276421555,"endHours":17.969252638166058,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:42","end":"14:01","startHours":12.697093142364032,"endHours":14.01513301631454,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:20","end":"16:39","startHours":15.333172890265047,"endHours":16.65121276421555,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:53","end":"10:14","startHours":9.885274744602953,"endHours":10.236752044323088,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:52","end":"08:09","startHours":7.864280271212176,"endHours":8.145462110988284,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:21","end":"13:03","startHours":12.345615842643896,"endHours":13.048570442084168,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:01","end":"06:43","startHours":6.019024447681468,"endHours":6.721979047121738,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:33","end":"07:25","startHours":6.54624039726167,"endHours":7.424933646562008,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:27","end":"15:09","startHours":14.454479640964708,"endHours":15.157434240404978,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:46","end":"18:10","startHours":17.76925263816606,"endHours":18.169252638166057,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:58","end":"18:25","startHours":17.969252638166058,"endHours":18.408599262816228,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:43","end":"19:28","startHours":17.719252638166058,"endHours":19.469252638166058,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:21","end":"01:03","startHours":24.345615842643898,"endHours":25.048570442084166,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"07:25","end":"08:45","startHours":7.424933646562008,"endHours":8.742973520512514,"quality":"inauspicious"},{"name":"Chala","start":"08:45","end":"10:04","startHours":8.742973520512514,"endHours":10.061013394463021,"quality":"neutral"},{"name":"Labha","start":"10:04","end":"11:23","startHours":10.061013394463021,"endHours":11.379053268413527,"quality":"auspicious"},{"name":"Amṛta","start":"11:23","end":"12:42","startHours":11.379053268413527,"endHours":12.697093142364032,"quality":"auspicious"},{"name":"Kāla","start":"12:42","end":"14:01","startHours":12.697093142364032,"endHours":14.01513301631454,"quality":"inauspicious"},{"name":"Śubha","start":"14:01","end":"15:20","startHours":14.01513301631454,"endHours":15.333172890265047,"quality":"auspicious"},{"name":"Roga","start":"15:20","end":"16:39","startHours":15.333172890265047,"endHours":16.65121276421555,"quality":"inauspicious"},{"name":"Udveg","start":"16:39","end":"17:58","startHours":16.65121276421555,"endHours":17.969252638166058,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:58","end":"19:39","startHours":17.969252638166058,"endHours":19.65121276421555,"quality":"auspicious"},{"name":"Roga","start":"19:39","end":"21:20","startHours":19.65121276421555,"endHours":21.333172890265047,"quality":"inauspicious"},{"name":"Udveg","start":"21:20","end":"23:01","startHours":21.333172890265047,"endHours":23.01513301631454,"quality":"inauspicious"},{"name":"Chala","start":"23:01","end":"00:42","startHours":23.01513301631454,"endHours":24.697093142364032,"quality":"neutral"},{"name":"Labha","start":"00:42","end":"02:23","startHours":24.697093142364032,"endHours":26.379053268413525,"quality":"auspicious"},{"name":"Amṛta","start":"02:23","end":"04:04","startHours":26.379053268413525,"endHours":28.061013394463018,"quality":"auspicious"},{"name":"Kāla","start":"04:04","end":"05:45","startHours":28.061013394463018,"endHours":29.742973520512514,"quality":"inauspicious"},{"name":"Śubha","start":"05:45","end":"07:25","startHours":29.742973520512514,"endHours":31.424933646562007,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:25","end":"08:25","startHours":7.424933646562008,"endHours":8.424933646562007,"planetary_lord":"Sun"},{"name":"Hora 2","start":"08:25","end":"09:25","startHours":8.424933646562007,"endHours":9.424933646562007,"planetary_lord":"Mars"},{"name":"Hora 3","start":"09:25","end":"10:25","startHours":9.424933646562007,"endHours":10.424933646562007,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"10:25","end":"11:25","startHours":10.424933646562007,"endHours":11.424933646562007,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"11:25","end":"12:25","startHours":11.424933646562007,"endHours":12.424933646562007,"planetary_lord":"Moon"},{"name":"Hora 6","start":"12:25","end":"13:25","startHours":12.424933646562007,"endHours":13.424933646562007,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"13:25","end":"14:25","startHours":13.424933646562007,"endHours":14.424933646562007,"planetary_lord":"Venus"},{"name":"Hora 8","start":"14:25","end":"15:25","startHours":14.424933646562007,"endHours":15.424933646562007,"planetary_lord":"Sun"},{"name":"Hora 9","start":"15:25","end":"16:25","startHours":15.424933646562007,"endHours":16.424933646562007,"planetary_lord":"Mars"},{"name":"Hora 10","start":"16:25","end":"17:25","startHours":16.424933646562007,"endHours":17.424933646562007,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"17:25","end":"18:25","startHours":17.424933646562007,"endHours":18.424933646562007,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"18:25","end":"19:25","startHours":18.424933646562007,"endHours":19.424933646562007,"planetary_lord":"Moon"},{"name":"Hora 13","start":"19:25","end":"20:25","startHours":19.424933646562007,"endHours":20.424933646562007,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"20:25","end":"21:25","startHours":20.424933646562007,"endHours":21.424933646562007,"planetary_lord":"Venus"},{"name":"Hora 15","start":"21:25","end":"22:25","startHours":21.424933646562007,"endHours":22.424933646562007,"planetary_lord":"Sun"},{"name":"Hora 16","start":"22:25","end":"23:25","startHours":22.424933646562007,"endHours":23.424933646562007,"planetary_lord":"Mars"},{"name":"Hora 17","start":"23:25","end":"00:25","startHours":23.424933646562007,"endHours":24.424933646562007,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"00:25","end":"01:25","startHours":24.424933646562007,"endHours":25.424933646562007,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"01:25","end":"02:25","startHours":25.424933646562007,"endHours":26.424933646562007,"planetary_lord":"Moon"},{"name":"Hora 20","start":"02:25","end":"03:25","startHours":26.424933646562007,"endHours":27.424933646562007,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"03:25","end":"04:25","startHours":27.424933646562007,"endHours":28.424933646562007,"planetary_lord":"Venus"},{"name":"Hora 22","start":"04:25","end":"05:25","startHours":28.424933646562007,"endHours":29.424933646562007,"planetary_lord":"Sun"},{"name":"Hora 23","start":"05:25","end":"06:25","startHours":29.424933646562007,"endHours":30.424933646562007,"planetary_lord":"Mars"},{"name":"Hora 24","start":"06:25","end":"07:25","startHours":30.424933646562007,"endHours":31.424933646562007,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","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":"West (Paścim)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-17.450915308609506,"eotMinutes":-13.52958854184206,"ayanamsa":21.6331}},"calendars":{"vikram_samvat":1898,"vikram_samvatsara":"Ānanda","saka_samvat":1763,"saka_samvatsara":"Plava","bengali_samvat":1248,"malayalam_era":1017,"nanakshahi_year":372,"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 Navamī · Vikram 1898 Ānanda · Śaka 1763 Plava"},"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":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5},{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 31, 1841 CE · Phoenix, USA · Vidhyamitra","description":"January 31, 1841 CE for Phoenix, USA: Śukla Navamī, sūryodaya 07:25, sūryāsta 17:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1841-01-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1841-01-31","sa":"https://sa.vidhyamitra.com/city/phoenix/1841-01-31","hi":"https://hi.vidhyamitra.com/city/phoenix/1841-01-31","x-default":"https://vidhyamitra.com/city/phoenix/1841-01-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T08:46:32.490Z","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":"2026-06-03T08:46:32.490Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T08:46:32.490Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}