{"id":"vidhyamitra:city-day:phoenix:1811-01-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/1811-01-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1811-01-01","date_display":"January 1, 1811 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":1811,"month":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2382513.770833,"kali_year":4912,"ahargana":1794048.2708,"sun":{"sidereal_longitude":258.8132,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":334.251,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":75.4378,"elapsed_within_tithi_degrees":3.4378},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1,"moon_longitude":334.251,"elapsed_within_degrees":0.9177},"yoga":{"number":18,"name":"Varīyān","sum_longitude":233.0642},"karana":{"half_tithi_index":12,"name":"Gara"},"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":1811,"month":1,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2382513.770833,"ahargana":1794048.2708,"kali_year":4912,"ayanamsa_lahiri":21.2128,"grahas":{"sun":{"sidereal_longitude":258.58431100000007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":337.14821099999995,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false,"latitude":0.6597},"mars":{"sidereal_longitude":189.62571100000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":274.088211,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":32.93171100000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":256.390811,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":240.87021099999993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":162.689,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":342.689,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"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":1811,"month":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2382513.770833,"kali_year":4912,"ahargana":1794048.2708,"sun":{"sidereal_longitude":258.8132,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":334.251,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":75.4378,"elapsed_within_tithi_degrees":3.4378},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1,"moon_longitude":334.251,"elapsed_within_degrees":0.9177},"yoga":{"number":18,"name":"Varīyān","sum_longitude":233.0642},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.66,"elongation":75.438},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.66,"opposition_distance":104.562}},"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":"17:31","solarNoonLocal":"12:32","dayLengthHours":9.971004387990739,"dayLengthDisplay":"9 Hours 58 Mins 16 Secs","nightLengthDisplay":"14 Hours 01 Mins 44 Secs","moonriseLocal":"11:45","moonsetLocal":"23:47","rahuKala":{"name":"Rāhu Kāla","start":"15:02","end":"16:16","startHours":15.026104069054288,"endHours":16.272479617553127,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:02","end":"11:17","startHours":10.040601875058918,"endHours":11.28697742355776,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:32","end":"13:47","startHours":12.533352972056601,"endHours":13.779728520555445,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:52","end":"10:12","startHours":9.874418468592406,"endHours":10.20678528152543,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:58","end":"08:14","startHours":7.963309294227513,"endHours":8.229202744573932,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:12","end":"12:52","startHours":12.200986159123577,"endHours":12.865719784989626,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:13","end":"06:53","startHours":6.218383526329134,"endHours":6.883117152195183,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:43","end":"07:33","startHours":6.716933745728671,"endHours":7.547850778061233,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:12","end":"14:52","startHours":14.195187036721725,"endHours":14.859920662587774,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:19","end":"17:43","startHours":17.31885516605197,"endHours":17.71885516605197,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:31","end":"17:56","startHours":17.51885516605197,"endHours":17.934313682218253,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:16","end":"19:01","startHours":17.26885516605197,"endHours":19.01885516605197,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:12","end":"00:52","startHours":24.200986159123577,"endHours":24.865719784989626,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:33","end":"08:48","startHours":7.547850778061233,"endHours":8.794226326560075,"quality":"inauspicious"},{"name":"Udveg","start":"08:48","end":"10:02","startHours":8.794226326560075,"endHours":10.040601875058918,"quality":"inauspicious"},{"name":"Chala","start":"10:02","end":"11:17","startHours":10.040601875058918,"endHours":11.28697742355776,"quality":"neutral"},{"name":"Labha","start":"11:17","end":"12:32","startHours":11.28697742355776,"endHours":12.533352972056601,"quality":"auspicious"},{"name":"Amṛta","start":"12:32","end":"13:47","startHours":12.533352972056601,"endHours":13.779728520555445,"quality":"auspicious"},{"name":"Kāla","start":"13:47","end":"15:02","startHours":13.779728520555445,"endHours":15.026104069054288,"quality":"inauspicious"},{"name":"Śubha","start":"15:02","end":"16:16","startHours":15.026104069054288,"endHours":16.272479617553127,"quality":"auspicious"},{"name":"Roga","start":"16:16","end":"17:31","startHours":16.272479617553127,"endHours":17.51885516605197,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:31","end":"19:16","startHours":17.51885516605197,"endHours":19.272479617553127,"quality":"inauspicious"},{"name":"Śubha","start":"19:16","end":"21:02","startHours":19.272479617553127,"endHours":21.026104069054284,"quality":"auspicious"},{"name":"Roga","start":"21:02","end":"22:47","startHours":21.026104069054284,"endHours":22.779728520555445,"quality":"inauspicious"},{"name":"Udveg","start":"22:47","end":"00:32","startHours":22.779728520555445,"endHours":24.5333529720566,"quality":"inauspicious"},{"name":"Chala","start":"00:32","end":"02:17","startHours":24.5333529720566,"endHours":26.286977423557758,"quality":"neutral"},{"name":"Labha","start":"02:17","end":"04:02","startHours":26.286977423557758,"endHours":28.04060187505892,"quality":"auspicious"},{"name":"Amṛta","start":"04:02","end":"05:48","startHours":28.04060187505892,"endHours":29.794226326560075,"quality":"auspicious"},{"name":"Kāla","start":"05:48","end":"07:33","startHours":29.794226326560075,"endHours":31.547850778061232,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:33","end":"08:33","startHours":7.547850778061233,"endHours":8.547850778061232,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:33","end":"09:33","startHours":8.547850778061232,"endHours":9.547850778061232,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:33","end":"10:33","startHours":9.547850778061232,"endHours":10.547850778061232,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:33","end":"11:33","startHours":10.547850778061232,"endHours":11.547850778061232,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:33","end":"12:33","startHours":11.547850778061232,"endHours":12.547850778061232,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:33","end":"13:33","startHours":12.547850778061232,"endHours":13.547850778061232,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:33","end":"14:33","startHours":13.547850778061232,"endHours":14.547850778061232,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:33","end":"15:33","startHours":14.547850778061232,"endHours":15.547850778061232,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:33","end":"16:33","startHours":15.547850778061232,"endHours":16.547850778061232,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:33","end":"17:33","startHours":16.547850778061232,"endHours":17.547850778061232,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:33","end":"18:33","startHours":17.547850778061232,"endHours":18.547850778061232,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:33","end":"19:33","startHours":18.547850778061232,"endHours":19.547850778061232,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:33","end":"20:33","startHours":19.547850778061232,"endHours":20.547850778061232,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:33","end":"21:33","startHours":20.547850778061232,"endHours":21.547850778061232,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:33","end":"22:33","startHours":21.547850778061232,"endHours":22.547850778061232,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:33","end":"23:33","startHours":22.547850778061232,"endHours":23.547850778061232,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:33","end":"00:33","startHours":23.547850778061232,"endHours":24.547850778061232,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:33","end":"01:33","startHours":24.547850778061232,"endHours":25.547850778061232,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:33","end":"02:33","startHours":25.547850778061232,"endHours":26.547850778061232,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:33","end":"03:33","startHours":26.547850778061232,"endHours":27.547850778061232,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:33","end":"04:33","startHours":27.547850778061232,"endHours":28.547850778061232,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:33","end":"05:33","startHours":28.547850778061232,"endHours":29.547850778061232,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:33","end":"06:33","startHours":29.547850778061232,"endHours":30.547850778061232,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:33","end":"07:33","startHours":30.547850778061232,"endHours":31.547850778061232,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.07477519279656,"eotMinutes":-3.705178323396069,"ayanamsa":21.2128}},"calendars":{"vikram_samvat":1868,"vikram_samvatsara":"Tāraṇa","saka_samvat":1733,"saka_samvatsara":"Prajāpati","bengali_samvat":1218,"malayalam_era":987,"nanakshahi_year":342,"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":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Saptamī · Vikram 1868 Tāraṇa · Śaka 1733 Prajāpati"},"festivals":[],"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":[]},"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 1, 1811 CE · Phoenix, USA · Vidhyamitra","description":"January 1, 1811 CE for Phoenix, USA: Śukla Saptamī, sūryodaya 07:33, sūryāsta 17:31.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/1811-01-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/1811-01-01","sa":"https://sa.vidhyamitra.com/city/phoenix/1811-01-01","hi":"https://hi.vidhyamitra.com/city/phoenix/1811-01-01","x-default":"https://vidhyamitra.com/city/phoenix/1811-01-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-05T14:31:27.175Z","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":"2026-06-05T14:31:27.175Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-05T14:31:27.175Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}