{"id":"vidhyamitra:city-day:chicago:2011-12-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/2011-12-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-12-23","date_display":"December 23, 2011 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":2011,"month":12,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455918.770833,"kali_year":5113,"ahargana":1867453.2708,"sun":{"sidereal_longitude":246.4678,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":225.4385,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":338.9706,"elapsed_within_tithi_degrees":2.9706},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":225.4385,"elapsed_within_degrees":12.1051},"yoga":{"number":9,"name":"Śūla","sum_longitude":111.9063},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2011,"month":12,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455918.770833,"ahargana":1867453.2708,"kali_year":5113,"ayanamsa_lahiri":24.0203,"grahas":{"sun":{"sidereal_longitude":246.81600000000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"moon":{"sidereal_longitude":223.8578,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false,"latitude":-0.6179},"mars":{"sidereal_longitude":143.41409999999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":224.76390000000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":6.206000000000017,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":278.6263,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":183.38189999999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":233.3389,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":53.3389,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":2011,"month":12,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455918.770833,"kali_year":5113,"ahargana":1867453.2708,"sun":{"sidereal_longitude":246.4678,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":225.4385,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":338.9706,"elapsed_within_tithi_degrees":2.9706},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":225.4385,"elapsed_within_degrees":12.1051},"yoga":{"number":9,"name":"Śūla","sum_longitude":111.9063},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.618,"elongation":21.029},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.618,"opposition_distance":158.971}},"eclipse_window_40days":[]},"city":{"slug":"chicago","name":"Chicago, USA","lat":41.8781,"lon":-87.6298,"tz_offset_hours":-6,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"chicago","name":"Chicago, USA","lat":41.8781,"lon":-87.6298,"tz_offset_hours":-6,"country":"US","tier":"diaspora"},"sunriseLocal":"07:16","sunsetLocal":"16:24","solarNoonLocal":"11:50","dayLengthHours":9.126576348545392,"dayLengthDisplay":"9 Hours 07 Mins 36 Secs","nightLengthDisplay":"14 Hours 52 Mins 24 Secs","moonriseLocal":"05:38","moonsetLocal":"14:59","rahuKala":{"name":"Rāhu Kāla","start":"10:42","end":"11:50","startHours":10.693773094903374,"endHours":11.834595138471549,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:07","end":"15:15","startHours":14.116239225607895,"endHours":15.25706126917607,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:25","end":"09:33","startHours":8.412129007767026,"endHours":9.5529510513352,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:24","end":"09:42","startHours":9.40084144552611,"endHours":9.70506065714429,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:39","end":"07:54","startHours":7.651580978721577,"endHours":7.8949563480161205,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:32","end":"12:08","startHours":11.530375926853369,"endHours":12.13881435008973,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:03","end":"06:40","startHours":6.054430117726134,"endHours":6.662868540962493,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:31","end":"07:16","startHours":6.510758935153403,"endHours":7.271306964198852,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:21","end":"13:58","startHours":13.355691196562447,"endHours":13.964129619798806,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:12","end":"16:36","startHours":16.197883312744246,"endHours":16.597883312744244,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:24","end":"16:47","startHours":16.397883312744245,"endHours":16.77815732726697,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:09","end":"17:54","startHours":16.147883312744245,"endHours":17.897883312744245,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:32","end":"00:08","startHours":23.53037592685337,"endHours":24.138814350089728,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:16","end":"08:25","startHours":7.271306964198852,"endHours":8.412129007767026,"quality":"neutral"},{"name":"Labha","start":"08:25","end":"09:33","startHours":8.412129007767026,"endHours":9.5529510513352,"quality":"auspicious"},{"name":"Amṛta","start":"09:33","end":"10:42","startHours":9.5529510513352,"endHours":10.693773094903374,"quality":"auspicious"},{"name":"Kāla","start":"10:42","end":"11:50","startHours":10.693773094903374,"endHours":11.834595138471549,"quality":"inauspicious"},{"name":"Śubha","start":"11:50","end":"12:59","startHours":11.834595138471549,"endHours":12.975417182039722,"quality":"auspicious"},{"name":"Roga","start":"12:59","end":"14:07","startHours":12.975417182039722,"endHours":14.116239225607895,"quality":"inauspicious"},{"name":"Udveg","start":"14:07","end":"15:15","startHours":14.116239225607895,"endHours":15.25706126917607,"quality":"inauspicious"},{"name":"Chala","start":"15:15","end":"16:24","startHours":15.25706126917607,"endHours":16.397883312744245,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"16:24","end":"18:15","startHours":16.397883312744245,"endHours":18.25706126917607,"quality":"inauspicious"},{"name":"Udveg","start":"18:15","end":"20:07","startHours":18.25706126917607,"endHours":20.1162392256079,"quality":"inauspicious"},{"name":"Chala","start":"20:07","end":"21:59","startHours":20.1162392256079,"endHours":21.975417182039724,"quality":"neutral"},{"name":"Labha","start":"21:59","end":"23:50","startHours":21.975417182039724,"endHours":23.83459513847155,"quality":"auspicious"},{"name":"Amṛta","start":"23:50","end":"01:42","startHours":23.83459513847155,"endHours":25.693773094903374,"quality":"auspicious"},{"name":"Kāla","start":"01:42","end":"03:33","startHours":25.693773094903374,"endHours":27.5529510513352,"quality":"inauspicious"},{"name":"Śubha","start":"03:33","end":"05:25","startHours":27.5529510513352,"endHours":29.412129007767028,"quality":"auspicious"},{"name":"Roga","start":"05:25","end":"07:16","startHours":29.412129007767028,"endHours":31.271306964198853,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:16","end":"08:16","startHours":7.271306964198852,"endHours":8.271306964198853,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:16","end":"09:16","startHours":8.271306964198853,"endHours":9.271306964198853,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:16","end":"10:16","startHours":9.271306964198853,"endHours":10.271306964198853,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:16","end":"11:16","startHours":10.271306964198853,"endHours":11.271306964198853,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:16","end":"12:16","startHours":11.271306964198853,"endHours":12.271306964198853,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:16","end":"13:16","startHours":12.271306964198853,"endHours":13.271306964198853,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:16","end":"14:16","startHours":13.271306964198853,"endHours":14.271306964198853,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:16","end":"15:16","startHours":14.271306964198853,"endHours":15.271306964198853,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:16","end":"16:16","startHours":15.271306964198853,"endHours":16.271306964198853,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:16","end":"17:16","startHours":16.271306964198853,"endHours":17.271306964198853,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:16","end":"18:16","startHours":17.271306964198853,"endHours":18.271306964198853,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:16","end":"19:16","startHours":18.271306964198853,"endHours":19.271306964198853,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:16","end":"20:16","startHours":19.271306964198853,"endHours":20.271306964198853,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:16","end":"21:16","startHours":20.271306964198853,"endHours":21.271306964198853,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:16","end":"22:16","startHours":21.271306964198853,"endHours":22.271306964198853,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:16","end":"23:16","startHours":22.271306964198853,"endHours":23.271306964198853,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:16","end":"00:16","startHours":23.271306964198853,"endHours":24.271306964198853,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:16","end":"01:16","startHours":24.271306964198853,"endHours":25.271306964198853,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:16","end":"02:16","startHours":25.271306964198853,"endHours":26.271306964198853,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:16","end":"03:16","startHours":26.271306964198853,"endHours":27.271306964198853,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:16","end":"04:16","startHours":27.271306964198853,"endHours":28.271306964198853,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:16","end":"05:16","startHours":28.271306964198853,"endHours":29.271306964198853,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:16","end":"06:16","startHours":29.271306964198853,"endHours":30.271306964198853,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:16","end":"07:16","startHours":30.271306964198853,"endHours":31.271306964198853,"planetary_lord":"Mars"}],"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":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"South-East","anandadiYoga":{"name":"Vajra","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":-23.433854280535993,"eotMinutes":0.4434916917071845,"ayanamsa":24.0203}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Mārgaśīrṣa","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 Kṛṣṇa Caturdaśī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"chicago"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 23, 2011 CE · Chicago, USA · Vidhyamitra","description":"December 23, 2011 CE for Chicago, USA: Kṛṣṇa Caturdaśī, sūryodaya 07:16, sūryāsta 16:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/2011-12-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/2011-12-23","sa":"https://sa.vidhyamitra.com/city/chicago/2011-12-23","hi":"https://hi.vidhyamitra.com/city/chicago/2011-12-23","x-default":"https://vidhyamitra.com/city/chicago/2011-12-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T07:57:33.054Z","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":"2026-06-02T07:57:33.054Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T07:57:33.054Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}