{"id":"vidhyamitra:city-day:chicago:2011-12-22:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/2011-12-22","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-12-22","date_display":"December 22, 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":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455917.770833,"kali_year":5113,"ahargana":1867452.2708,"sun":{"sidereal_longitude":245.4405,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":210.9728,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":325.5323,"elapsed_within_tithi_degrees":1.5323},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":210.9728,"elapsed_within_degrees":10.9728},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":96.4133},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":22,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455917.770833,"ahargana":1867452.2708,"kali_year":5113,"ayanamsa_lahiri":24.0202,"grahas":{"sun":{"sidereal_longitude":245.79753800000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"moon":{"sidereal_longitude":209.26423799999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false,"latitude":-1.7147},"mars":{"sidereal_longitude":143.100438,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":223.79483800000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":6.21813800000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":277.39383799999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":183.30573800000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":233.3919,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":53.3919,"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":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455917.770833,"kali_year":5113,"ahargana":1867452.2708,"sun":{"sidereal_longitude":245.4405,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":210.9728,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":325.5323,"elapsed_within_tithi_degrees":1.5323},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":210.9728,"elapsed_within_degrees":10.9728},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":96.4133},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.715,"elongation":34.468},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.715,"opposition_distance":145.532}},"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":"16:23","solarNoonLocal":"11:50","dayLengthHours":9.12619492777256,"dayLengthDisplay":"9 Hours 07 Mins 34 Secs","nightLengthDisplay":"14 Hours 52 Mins 26 Secs","moonriseLocal":"04:30","moonsetLocal":"14:17","rahuKala":{"name":"Rāhu Kāla","start":"12:58","end":"14:06","startHours":12.96754424764623,"endHours":14.1083186136178,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:16","end":"08:24","startHours":7.263672417788381,"endHours":8.404446783759951,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:33","end":"10:41","startHours":9.545221149731521,"endHours":10.685995515703091,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:24","end":"09:42","startHours":9.393117900935312,"endHours":9.69732439852773,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:39","end":"07:53","startHours":7.643930539778904,"endHours":7.887295737852839,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:31","end":"12:08","startHours":11.522563384082241,"endHours":12.13097637926708,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:03","end":"06:39","startHours":6.046846427418707,"endHours":6.655259422603544,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:30","end":"07:16","startHours":6.5031561738073345,"endHours":7.263672417788381,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:21","end":"13:57","startHours":13.347802369636753,"endHours":13.95621536482159,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:11","end":"16:35","startHours":16.18986734556094,"endHours":16.58986734556094,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:23","end":"16:46","startHours":16.38986734556094,"endHours":16.770125467551463,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:08","end":"17:53","startHours":16.13986734556094,"endHours":17.88986734556094,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:31","end":"00:08","startHours":23.522563384082243,"endHours":24.13097637926708,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:16","end":"08:24","startHours":7.263672417788381,"endHours":8.404446783759951,"quality":"auspicious"},{"name":"Roga","start":"08:24","end":"09:33","startHours":8.404446783759951,"endHours":9.545221149731521,"quality":"inauspicious"},{"name":"Udveg","start":"09:33","end":"10:41","startHours":9.545221149731521,"endHours":10.685995515703091,"quality":"inauspicious"},{"name":"Chala","start":"10:41","end":"11:50","startHours":10.685995515703091,"endHours":11.826769881674661,"quality":"neutral"},{"name":"Labha","start":"11:50","end":"12:58","startHours":11.826769881674661,"endHours":12.96754424764623,"quality":"auspicious"},{"name":"Amṛta","start":"12:58","end":"14:06","startHours":12.96754424764623,"endHours":14.1083186136178,"quality":"auspicious"},{"name":"Kāla","start":"14:06","end":"15:15","startHours":14.1083186136178,"endHours":15.24909297958937,"quality":"inauspicious"},{"name":"Śubha","start":"15:15","end":"16:23","startHours":15.24909297958937,"endHours":16.38986734556094,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"16:23","end":"18:15","startHours":16.38986734556094,"endHours":18.24909297958937,"quality":"auspicious"},{"name":"Kāla","start":"18:15","end":"20:06","startHours":18.24909297958937,"endHours":20.1083186136178,"quality":"inauspicious"},{"name":"Śubha","start":"20:06","end":"21:58","startHours":20.1083186136178,"endHours":21.96754424764623,"quality":"auspicious"},{"name":"Roga","start":"21:58","end":"23:50","startHours":21.96754424764623,"endHours":23.82676988167466,"quality":"inauspicious"},{"name":"Udveg","start":"23:50","end":"01:41","startHours":23.82676988167466,"endHours":25.68599551570309,"quality":"inauspicious"},{"name":"Chala","start":"01:41","end":"03:33","startHours":25.68599551570309,"endHours":27.54522114973152,"quality":"neutral"},{"name":"Labha","start":"03:33","end":"05:24","startHours":27.54522114973152,"endHours":29.40444678375995,"quality":"auspicious"},{"name":"Amṛta","start":"05:24","end":"07:16","startHours":29.40444678375995,"endHours":31.26367241778838,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:16","end":"08:16","startHours":7.263672417788381,"endHours":8.263672417788381,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:16","end":"09:16","startHours":8.263672417788381,"endHours":9.263672417788381,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:16","end":"10:16","startHours":9.263672417788381,"endHours":10.263672417788381,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:16","end":"11:16","startHours":10.263672417788381,"endHours":11.263672417788381,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:16","end":"12:16","startHours":11.263672417788381,"endHours":12.263672417788381,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:16","end":"13:16","startHours":12.263672417788381,"endHours":13.263672417788381,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:16","end":"14:16","startHours":13.263672417788381,"endHours":14.263672417788381,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:16","end":"15:16","startHours":14.263672417788381,"endHours":15.263672417788381,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:16","end":"16:16","startHours":15.263672417788381,"endHours":16.26367241778838,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:16","end":"17:16","startHours":16.26367241778838,"endHours":17.26367241778838,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:16","end":"18:16","startHours":17.26367241778838,"endHours":18.26367241778838,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:16","end":"19:16","startHours":18.26367241778838,"endHours":19.26367241778838,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:16","end":"20:16","startHours":19.26367241778838,"endHours":20.26367241778838,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:16","end":"21:16","startHours":20.26367241778838,"endHours":21.26367241778838,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:16","end":"22:16","startHours":21.26367241778838,"endHours":22.26367241778838,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:16","end":"23:16","startHours":22.26367241778838,"endHours":23.26367241778838,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:16","end":"00:16","startHours":23.26367241778838,"endHours":24.26367241778838,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:16","end":"01:16","startHours":24.26367241778838,"endHours":25.26367241778838,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:16","end":"02:16","startHours":25.26367241778838,"endHours":26.26367241778838,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:16","end":"03:16","startHours":26.26367241778838,"endHours":27.26367241778838,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:16","end":"04:16","startHours":27.26367241778838,"endHours":28.26367241778838,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:16","end":"05:16","startHours":28.26367241778838,"endHours":29.26367241778838,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:16","end":"06:16","startHours":29.26367241778838,"endHours":30.26367241778838,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:16","end":"07:16","startHours":30.26367241778838,"endHours":31.26367241778838,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.436374332392692,"eotMinutes":0.9130070995203906,"ayanamsa":24.0202}},"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 Trayodaśī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"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 22, 2011 CE · Chicago, USA · Vidhyamitra","description":"December 22, 2011 CE for Chicago, USA: Kṛṣṇa Trayodaśī, sūryodaya 07:16, sūryāsta 16:23.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/2011-12-22","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/2011-12-22","sa":"https://sa.vidhyamitra.com/city/chicago/2011-12-22","hi":"https://hi.vidhyamitra.com/city/chicago/2011-12-22","x-default":"https://vidhyamitra.com/city/chicago/2011-12-22"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T05:43:23.017Z","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":"2026-06-01T05:43:23.017Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T05:43:23.017Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}