{"id":"vidhyamitra:city-day:chicago:2091-01-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/2091-01-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2091-01-01","date_display":"January 1, 2091 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":2091,"month":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2484782.770833,"kali_year":5192,"ahargana":1896317.2708,"sun":{"sidereal_longitude":255.2643,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":19.7348,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":124.4705,"elapsed_within_tithi_degrees":4.4705},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":19.7348,"elapsed_within_degrees":6.4015},"yoga":{"number":21,"name":"Siddha","sum_longitude":274.9991},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2091,"month":1,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2484782.770833,"ahargana":1896317.2708,"kali_year":5192,"ayanamsa_lahiri":25.1242,"grahas":{"sun":{"sidereal_longitude":255.721583,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":20.048583000000008,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false,"latitude":-3.7184},"mars":{"sidereal_longitude":145.989983,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":234.9259830000001,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":247.379183,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"venus":{"sidereal_longitude":208.37088300000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":54.57748300000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":143.9853,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":323.9853,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"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":2091,"month":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2484782.770833,"kali_year":5192,"ahargana":1896317.2708,"sun":{"sidereal_longitude":255.2643,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":19.7348,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":124.4705,"elapsed_within_tithi_degrees":4.4705},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":19.7348,"elapsed_within_degrees":6.4015},"yoga":{"number":21,"name":"Siddha","sum_longitude":274.9991},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.718,"elongation":124.471},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.718,"opposition_distance":55.529}},"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":"16:30","solarNoonLocal":"11:54","dayLengthHours":9.19288555532848,"dayLengthDisplay":"9 Hours 11 Mins 34 Secs","nightLengthDisplay":"14 Hours 48 Mins 26 Secs","moonriseLocal":"13:07","moonsetLocal":"03:16","rahuKala":{"name":"Rāhu Kāla","start":"08:27","end":"09:36","startHours":8.45640755547509,"endHours":9.605518249891151,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:45","end":"11:54","startHours":10.75462894430721,"endHours":11.90373963872327,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:03","end":"14:12","startHours":13.05285033313933,"endHours":14.201961027555392,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:27","end":"09:46","startHours":9.452303490635675,"endHours":9.758733009146624,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:41","end":"07:56","startHours":7.690333759197717,"endHours":7.935477374006476,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:36","end":"12:13","startHours":11.59731012021232,"endHours":12.210169157234219,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:05","end":"06:42","startHours":6.081578787015233,"endHours":6.694437824037132,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:32","end":"07:18","startHours":6.541223064781657,"endHours":7.30729686105903,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:26","end":"14:03","startHours":13.435887231278016,"endHours":14.048746268299915,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:18","end":"16:42","startHours":16.30018241638751,"endHours":16.70018241638751,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:30","end":"16:53","startHours":16.50018241638751,"endHours":16.883219314526198,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:15","end":"18:00","startHours":16.25018241638751,"endHours":18.00018241638751,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:36","end":"00:13","startHours":23.59731012021232,"endHours":24.21016915723422,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:18","end":"08:27","startHours":7.30729686105903,"endHours":8.45640755547509,"quality":"auspicious"},{"name":"Kāla","start":"08:27","end":"09:36","startHours":8.45640755547509,"endHours":9.605518249891151,"quality":"inauspicious"},{"name":"Śubha","start":"09:36","end":"10:45","startHours":9.605518249891151,"endHours":10.75462894430721,"quality":"auspicious"},{"name":"Roga","start":"10:45","end":"11:54","startHours":10.75462894430721,"endHours":11.90373963872327,"quality":"inauspicious"},{"name":"Udveg","start":"11:54","end":"13:03","startHours":11.90373963872327,"endHours":13.05285033313933,"quality":"inauspicious"},{"name":"Chala","start":"13:03","end":"14:12","startHours":13.05285033313933,"endHours":14.201961027555392,"quality":"neutral"},{"name":"Labha","start":"14:12","end":"15:21","startHours":14.201961027555392,"endHours":15.35107172197145,"quality":"auspicious"},{"name":"Amṛta","start":"15:21","end":"16:30","startHours":15.35107172197145,"endHours":16.50018241638751,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"16:30","end":"18:21","startHours":16.50018241638751,"endHours":18.35107172197145,"quality":"neutral"},{"name":"Labha","start":"18:21","end":"20:12","startHours":18.35107172197145,"endHours":20.20196102755539,"quality":"auspicious"},{"name":"Amṛta","start":"20:12","end":"22:03","startHours":20.20196102755539,"endHours":22.05285033313933,"quality":"auspicious"},{"name":"Kāla","start":"22:03","end":"23:54","startHours":22.05285033313933,"endHours":23.90373963872327,"quality":"inauspicious"},{"name":"Śubha","start":"23:54","end":"01:45","startHours":23.90373963872327,"endHours":25.75462894430721,"quality":"auspicious"},{"name":"Roga","start":"01:45","end":"03:36","startHours":25.75462894430721,"endHours":27.605518249891148,"quality":"inauspicious"},{"name":"Udveg","start":"03:36","end":"05:27","startHours":27.605518249891148,"endHours":29.45640755547509,"quality":"inauspicious"},{"name":"Chala","start":"05:27","end":"07:18","startHours":29.45640755547509,"endHours":31.30729686105903,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:18","end":"08:18","startHours":7.30729686105903,"endHours":8.30729686105903,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:18","end":"09:18","startHours":8.30729686105903,"endHours":9.30729686105903,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:18","end":"10:18","startHours":9.30729686105903,"endHours":10.30729686105903,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:18","end":"11:18","startHours":10.30729686105903,"endHours":11.30729686105903,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:18","end":"12:18","startHours":11.30729686105903,"endHours":12.30729686105903,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:18","end":"13:18","startHours":12.30729686105903,"endHours":13.30729686105903,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:18","end":"14:18","startHours":13.30729686105903,"endHours":14.30729686105903,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:18","end":"15:18","startHours":14.30729686105903,"endHours":15.30729686105903,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:18","end":"16:18","startHours":15.30729686105903,"endHours":16.30729686105903,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:18","end":"17:18","startHours":16.30729686105903,"endHours":17.30729686105903,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:18","end":"18:18","startHours":17.30729686105903,"endHours":18.30729686105903,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:18","end":"19:18","startHours":18.30729686105903,"endHours":19.30729686105903,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:18","end":"20:18","startHours":19.30729686105903,"endHours":20.30729686105903,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:18","end":"21:18","startHours":20.30729686105903,"endHours":21.30729686105903,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:18","end":"22:18","startHours":21.30729686105903,"endHours":22.30729686105903,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:18","end":"23:18","startHours":22.30729686105903,"endHours":23.30729686105903,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:18","end":"00:18","startHours":23.30729686105903,"endHours":24.30729686105903,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:18","end":"01:18","startHours":24.30729686105903,"endHours":25.30729686105903,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:18","end":"02:18","startHours":25.30729686105903,"endHours":26.30729686105903,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:18","end":"03:18","startHours":26.30729686105903,"endHours":27.30729686105903,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:18","end":"04:18","startHours":27.30729686105903,"endHours":28.30729686105903,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:18","end":"05:18","startHours":28.30729686105903,"endHours":29.30729686105903,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:18","end":"06:18","startHours":29.30729686105903,"endHours":30.30729686105903,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:18","end":"07:18","startHours":30.30729686105903,"endHours":31.30729686105903,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","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":"East (Pūrva)","chandraVasa":"East","rahuVasa":"North-East","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":-22.99357162167072,"eotMinutes":-3.705178323396069,"ayanamsa":25.1242}},"calendars":{"vikram_samvat":2148,"vikram_samvatsara":"Raktākṣī","saka_samvat":2013,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1498,"malayalam_era":1267,"nanakshahi_year":622,"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 Ekādaśī · Vikram 2148 Raktākṣī · Śaka 2013 Virodhakṛt"},"festivals":[{"id":"putrada-ekadashi","name":"Pauṣa Putradā Ekādaśī","name_sanskrit":"पौष पुत्रदा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Ekādaśī granting putra-prāpti.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Pauṣa"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 January 1, 2091 CE · Chicago, USA · Vidhyamitra","description":"January 1, 2091 CE for Chicago, USA: Śukla Ekādaśī, sūryodaya 07:18, sūryāsta 16:30.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/2091-01-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/2091-01-01","sa":"https://sa.vidhyamitra.com/city/chicago/2091-01-01","hi":"https://hi.vidhyamitra.com/city/chicago/2091-01-01","x-default":"https://vidhyamitra.com/city/chicago/2091-01-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T13:33:55.009Z","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":"2026-06-04T13:33:55.009Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-04T13:33:55.009Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}