{"id":"vidhyamitra:city-day:chicago:2012-12-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/2012-12-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2012-12-27","date_display":"December 27, 2012 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":2012,"month":12,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456288.770833,"kali_year":5114,"ahargana":1867823.2708,"sun":{"sidereal_longitude":251.3403,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":55.847,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":164.5067,"elapsed_within_tithi_degrees":8.5067},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":55.847,"elapsed_within_degrees":2.5137},"yoga":{"number":24,"name":"Śukla","sum_longitude":307.1873},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"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":2012,"month":12,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456288.770833,"ahargana":1867823.2708,"kali_year":5114,"ayanamsa_lahiri":24.0344,"grahas":{"sun":{"sidereal_longitude":251.648863,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":56.50136299999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false,"latitude":-1.6924},"mars":{"sidereal_longitude":276.62476300000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":238.79646300000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":43.83586300000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":229.361763,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":194.840863,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":213.7345,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":33.7345,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2012,"month":12,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456288.770833,"kali_year":5114,"ahargana":1867823.2708,"sun":{"sidereal_longitude":251.3403,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":55.847,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":164.5067,"elapsed_within_tithi_degrees":8.5067},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":55.847,"elapsed_within_degrees":2.5137},"yoga":{"number":24,"name":"Śukla","sum_longitude":307.1873},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.692,"elongation":164.507},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.692,"opposition_distance":15.493}},"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":"07:18","sunsetLocal":"16:26","solarNoonLocal":"11:52","dayLengthHours":9.144621047545295,"dayLengthDisplay":"9 Hours 08 Mins 41 Secs","nightLengthDisplay":"14 Hours 51 Mins 19 Secs","moonriseLocal":"15:18","moonsetLocal":"06:25","rahuKala":{"name":"Rāhu Kāla","start":"13:01","end":"14:09","startHours":13.008809399533678,"endHours":14.151887030476841,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:18","end":"08:26","startHours":7.2934212448178695,"endHours":8.436498875761032,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:35","end":"10:43","startHours":9.579576506704193,"endHours":10.722654137647355,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:44","startHours":9.427166155911772,"endHours":9.731986857496615,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:40","end":"07:55","startHours":7.674447121798924,"endHours":7.9183036830667985,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:34","end":"12:10","startHours":11.560911067005675,"endHours":12.17055247017536,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:04","end":"06:41","startHours":6.074138438478497,"endHours":6.6837798416481835,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:32","end":"07:18","startHours":6.531369490855761,"endHours":7.2934212448178695,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:23","end":"14:00","startHours":13.389835276514733,"endHours":13.999476679684419,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:14","end":"16:38","startHours":16.238042292363165,"endHours":16.638042292363163,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:26","end":"16:49","startHours":16.438042292363164,"endHours":16.819068169344217,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:11","end":"17:56","startHours":16.188042292363164,"endHours":17.938042292363164,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:34","end":"00:10","startHours":23.560911067005673,"endHours":24.170552470175362,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:18","end":"08:26","startHours":7.2934212448178695,"endHours":8.436498875761032,"quality":"auspicious"},{"name":"Roga","start":"08:26","end":"09:35","startHours":8.436498875761032,"endHours":9.579576506704193,"quality":"inauspicious"},{"name":"Udveg","start":"09:35","end":"10:43","startHours":9.579576506704193,"endHours":10.722654137647355,"quality":"inauspicious"},{"name":"Chala","start":"10:43","end":"11:52","startHours":10.722654137647355,"endHours":11.865731768590518,"quality":"neutral"},{"name":"Labha","start":"11:52","end":"13:01","startHours":11.865731768590518,"endHours":13.008809399533678,"quality":"auspicious"},{"name":"Amṛta","start":"13:01","end":"14:09","startHours":13.008809399533678,"endHours":14.151887030476841,"quality":"auspicious"},{"name":"Kāla","start":"14:09","end":"15:18","startHours":14.151887030476841,"endHours":15.294964661420002,"quality":"inauspicious"},{"name":"Śubha","start":"15:18","end":"16:26","startHours":15.294964661420002,"endHours":16.438042292363164,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"16:26","end":"18:18","startHours":16.438042292363164,"endHours":18.294964661420003,"quality":"auspicious"},{"name":"Kāla","start":"18:18","end":"20:09","startHours":18.294964661420003,"endHours":20.15188703047684,"quality":"inauspicious"},{"name":"Śubha","start":"20:09","end":"22:01","startHours":20.15188703047684,"endHours":22.00880939953368,"quality":"auspicious"},{"name":"Roga","start":"22:01","end":"23:52","startHours":22.00880939953368,"endHours":23.865731768590518,"quality":"inauspicious"},{"name":"Udveg","start":"23:52","end":"01:43","startHours":23.865731768590518,"endHours":25.722654137647353,"quality":"inauspicious"},{"name":"Chala","start":"01:43","end":"03:35","startHours":25.722654137647353,"endHours":27.579576506704193,"quality":"neutral"},{"name":"Labha","start":"03:35","end":"05:26","startHours":27.579576506704193,"endHours":29.436498875761032,"quality":"auspicious"},{"name":"Amṛta","start":"05:26","end":"07:18","startHours":29.436498875761032,"endHours":31.29342124481787,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:18","end":"08:18","startHours":7.2934212448178695,"endHours":8.29342124481787,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:18","end":"09:18","startHours":8.29342124481787,"endHours":9.29342124481787,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:18","end":"10:18","startHours":9.29342124481787,"endHours":10.29342124481787,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:18","end":"11:18","startHours":10.29342124481787,"endHours":11.29342124481787,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:18","end":"12:18","startHours":11.29342124481787,"endHours":12.29342124481787,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:18","end":"13:18","startHours":12.29342124481787,"endHours":13.29342124481787,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:18","end":"14:18","startHours":13.29342124481787,"endHours":14.29342124481787,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:18","end":"15:18","startHours":14.29342124481787,"endHours":15.29342124481787,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:18","end":"16:18","startHours":15.29342124481787,"endHours":16.29342124481787,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:18","end":"17:18","startHours":16.29342124481787,"endHours":17.29342124481787,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:18","end":"18:18","startHours":17.29342124481787,"endHours":18.29342124481787,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:18","end":"19:18","startHours":18.29342124481787,"endHours":19.29342124481787,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:18","end":"20:18","startHours":19.29342124481787,"endHours":20.29342124481787,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:18","end":"21:18","startHours":20.29342124481787,"endHours":21.29342124481787,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:18","end":"22:18","startHours":21.29342124481787,"endHours":22.29342124481787,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:18","end":"23:18","startHours":22.29342124481787,"endHours":23.29342124481787,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:18","end":"00:18","startHours":23.29342124481787,"endHours":24.29342124481787,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:18","end":"01:18","startHours":24.29342124481787,"endHours":25.29342124481787,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:18","end":"02:18","startHours":25.29342124481787,"endHours":26.29342124481787,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:18","end":"03:18","startHours":26.29342124481787,"endHours":27.29342124481787,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:18","end":"04:18","startHours":27.29342124481787,"endHours":28.29342124481787,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:18","end":"05:18","startHours":28.29342124481787,"endHours":29.29342124481787,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:18","end":"06:18","startHours":29.29342124481787,"endHours":30.29342124481787,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:18","end":"07:18","startHours":30.29342124481787,"endHours":31.29342124481787,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"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":-23.314468784484095,"eotMinutes":-1.4247061154310068,"ayanamsa":24.0344}},"calendars":{"vikram_samvat":2069,"vikram_samvatsara":"Viśvāvasu","saka_samvat":1934,"saka_samvatsara":"Nandana","bengali_samvat":1419,"malayalam_era":1188,"nanakshahi_year":543,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","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":"Mārgaśīrṣa Śukla Caturdaśī · Vikram 2069 Viśvāvasu · Śaka 1934 Nandana"},"festivals":[],"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":[]},"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 27, 2012 CE · Chicago, USA · Vidhyamitra","description":"December 27, 2012 CE for Chicago, USA: Śukla Caturdaśī, sūryodaya 07:18, sūryāsta 16:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/2012-12-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/2012-12-27","sa":"https://sa.vidhyamitra.com/city/chicago/2012-12-27","hi":"https://hi.vidhyamitra.com/city/chicago/2012-12-27","x-default":"https://vidhyamitra.com/city/chicago/2012-12-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:18:14.247Z","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":"2026-05-31T18:18:14.247Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:18:14.247Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}