{"id":"vidhyamitra:city-day:chicago:2005-10-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/2005-10-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2005-10-21","date_display":"October 21, 2005 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2005,"month":10,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453664.770833,"kali_year":5107,"ahargana":1865199.2708,"sun":{"sidereal_longitude":183.0753,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":48.4932,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":225.4179,"elapsed_within_tithi_degrees":9.4179},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":48.4932,"elapsed_within_degrees":8.4932},"yoga":{"number":18,"name":"Varīyān","sum_longitude":231.5685},"karana":{"half_tithi_index":37,"name":"Bālava"},"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":2005,"month":10,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2453664.770833,"ahargana":1865199.2708,"kali_year":5107,"ayanamsa_lahiri":23.9341,"grahas":{"sun":{"sidereal_longitude":183.81032000000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":48.26772,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false,"latitude":3.7174},"mars":{"sidereal_longitude":26.694920000000025,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":true},"mercury":{"sidereal_longitude":203.97612000000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":185.52042000000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":230.23242000000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":106.29111999999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":352.7667,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":172.7667,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2005,"month":10,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453664.770833,"kali_year":5107,"ahargana":1865199.2708,"sun":{"sidereal_longitude":183.0753,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":48.4932,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":225.4179,"elapsed_within_tithi_degrees":9.4179},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":48.4932,"elapsed_within_degrees":8.4932},"yoga":{"number":18,"name":"Varīyān","sum_longitude":231.5685},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.717,"elongation":134.582},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.717,"opposition_distance":45.418}},"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":"06:09","sunsetLocal":"17:00","solarNoonLocal":"11:35","dayLengthHours":10.85704640197617,"dayLengthDisplay":"10 Hours 51 Mins 25 Secs","nightLengthDisplay":"13 Hours 08 Mins 35 Secs","moonriseLocal":"19:03","moonsetLocal":"10:02","rahuKala":{"name":"Rāhu Kāla","start":"10:13","end":"11:35","startHours":10.221032190307902,"endHours":11.578162990554922,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:18","end":"15:39","startHours":14.292424591048965,"endHours":15.649555391295987,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:30","end":"08:52","startHours":7.506770589813859,"endHours":8.86390139006088,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:41","end":"09:03","startHours":8.68295061669461,"endHours":9.04485216342715,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:36","end":"06:53","startHours":6.602016722982511,"endHours":6.8915379603685425,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:13","end":"11:56","startHours":11.216261443822383,"endHours":11.940064537287462,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:42","end":"05:26","startHours":4.702033602636681,"endHours":5.42583669610176,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:15","end":"06:09","startHours":5.24488592273549,"endHours":6.149639789566837,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:23","end":"14:07","startHours":13.387670724217617,"endHours":14.111473817682695,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:48","end":"17:12","startHours":16.806686191543008,"endHours":17.206686191543007,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:00","end":"17:28","startHours":17.006686191543007,"endHours":17.459063124958682,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:45","end":"18:30","startHours":16.756686191543007,"endHours":18.506686191543007,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:13","end":"23:56","startHours":23.216261443822383,"endHours":23.940064537287462,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:09","end":"07:30","startHours":6.149639789566837,"endHours":7.506770589813859,"quality":"neutral"},{"name":"Labha","start":"07:30","end":"08:52","startHours":7.506770589813859,"endHours":8.86390139006088,"quality":"auspicious"},{"name":"Amṛta","start":"08:52","end":"10:13","startHours":8.86390139006088,"endHours":10.221032190307902,"quality":"auspicious"},{"name":"Kāla","start":"10:13","end":"11:35","startHours":10.221032190307902,"endHours":11.578162990554922,"quality":"inauspicious"},{"name":"Śubha","start":"11:35","end":"12:56","startHours":11.578162990554922,"endHours":12.935293790801943,"quality":"auspicious"},{"name":"Roga","start":"12:56","end":"14:18","startHours":12.935293790801943,"endHours":14.292424591048965,"quality":"inauspicious"},{"name":"Udveg","start":"14:18","end":"15:39","startHours":14.292424591048965,"endHours":15.649555391295987,"quality":"inauspicious"},{"name":"Chala","start":"15:39","end":"17:00","startHours":15.649555391295987,"endHours":17.006686191543007,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:00","end":"18:39","startHours":17.006686191543007,"endHours":18.649555391295987,"quality":"inauspicious"},{"name":"Udveg","start":"18:39","end":"20:18","startHours":18.649555391295987,"endHours":20.292424591048963,"quality":"inauspicious"},{"name":"Chala","start":"20:18","end":"21:56","startHours":20.292424591048963,"endHours":21.935293790801943,"quality":"neutral"},{"name":"Labha","start":"21:56","end":"23:35","startHours":21.935293790801943,"endHours":23.578162990554922,"quality":"auspicious"},{"name":"Amṛta","start":"23:35","end":"01:13","startHours":23.578162990554922,"endHours":25.221032190307902,"quality":"auspicious"},{"name":"Kāla","start":"01:13","end":"02:52","startHours":25.221032190307902,"endHours":26.86390139006088,"quality":"inauspicious"},{"name":"Śubha","start":"02:52","end":"04:30","startHours":26.86390139006088,"endHours":28.506770589813858,"quality":"auspicious"},{"name":"Roga","start":"04:30","end":"06:09","startHours":28.506770589813858,"endHours":30.149639789566837,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:09","end":"07:09","startHours":6.149639789566837,"endHours":7.149639789566837,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:09","end":"08:09","startHours":7.149639789566837,"endHours":8.149639789566837,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:09","end":"09:09","startHours":8.149639789566837,"endHours":9.149639789566837,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:09","end":"10:09","startHours":9.149639789566837,"endHours":10.149639789566837,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:09","end":"11:09","startHours":10.149639789566837,"endHours":11.149639789566837,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:09","end":"12:09","startHours":11.149639789566837,"endHours":12.149639789566837,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:09","end":"13:09","startHours":12.149639789566837,"endHours":13.149639789566837,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:09","end":"14:09","startHours":13.149639789566837,"endHours":14.149639789566837,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:09","end":"15:09","startHours":14.149639789566837,"endHours":15.149639789566837,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:09","end":"16:09","startHours":15.149639789566837,"endHours":16.149639789566837,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:09","end":"17:09","startHours":16.149639789566837,"endHours":17.149639789566837,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:09","end":"18:09","startHours":17.149639789566837,"endHours":18.149639789566837,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:09","end":"19:09","startHours":18.149639789566837,"endHours":19.149639789566837,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:09","end":"20:09","startHours":19.149639789566837,"endHours":20.149639789566837,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:09","end":"21:09","startHours":20.149639789566837,"endHours":21.149639789566837,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:09","end":"22:09","startHours":21.149639789566837,"endHours":22.149639789566837,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:09","end":"23:09","startHours":22.149639789566837,"endHours":23.149639789566837,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:09","end":"00:09","startHours":23.149639789566837,"endHours":24.149639789566837,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:09","end":"01:09","startHours":24.149639789566837,"endHours":25.149639789566837,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:09","end":"02:09","startHours":25.149639789566837,"endHours":26.149639789566837,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:09","end":"03:09","startHours":26.149639789566837,"endHours":27.149639789566837,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:09","end":"04:09","startHours":27.149639789566837,"endHours":28.149639789566837,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:09","end":"05:09","startHours":28.149639789566837,"endHours":29.149639789566837,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:09","end":"06:09","startHours":29.149639789566837,"endHours":30.149639789566837,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"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":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-10.670211831048075,"eotMinutes":15.829420566704727,"ayanamsa":23.9341}},"calendars":{"vikram_samvat":2062,"vikram_samvatsara":"Vilambī","saka_samvat":1927,"saka_samvatsara":"Pārthiva","bengali_samvat":1412,"malayalam_era":1181,"nanakshahi_year":536,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Caturthī · Vikram 2062 Vilambī · Śaka 1927 Pārthiva"},"festivals":[{"id":"karva-chauth","name":"Karvā Chauth","name_sanskrit":"करवा चौथ","tradition":"Pan-Hindu","associated_deity":"Pārvatī + Gaṇeśa + Chandra","significance":"North Indian wives' fast for husband's longevity. Kṛṣṇa Caturthī of Kārtika.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa","lunar_month":"Kārtika"},"precedence":2},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"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":"Dedicated festival walk for Karvā Chauth · Saṅkaṣṭī Caturthī is not live yet; 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 October 21, 2005 CE · Chicago, USA · Vidhyamitra","description":"October 21, 2005 CE for Chicago, USA: Kṛṣṇa Caturthī, sūryodaya 06:09, sūryāsta 17:00.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/2005-10-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/2005-10-21","sa":"https://sa.vidhyamitra.com/city/chicago/2005-10-21","hi":"https://hi.vidhyamitra.com/city/chicago/2005-10-21","x-default":"https://vidhyamitra.com/city/chicago/2005-10-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-08-10T10:06:56.828Z","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":"2026-08-10T10:06:56.828Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-08-10T10:06:56.828Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Goloka/Vraja Rādhā-Krishna","Vaikuṇṭha Lakṣmī-Nārāyaṇa","Mahāviṣṇu/Kāraṇodakaśāyī Viṣṇu","Garbhodakaśāyī Viṣṇu","Brahmā","Kṣīrodaka Paramātmā/Antaryāmī (Kṣīrodakaśāyī Viṣṇu)","Bhūmi","reader's own kṣetra anywhere on Bhūmi","exact reading kṣetra","reader-bhakta","chitta/vāṇī/aṅgulī","keyboard-silicon-pathways","Vidhyāmitra substrate","reader/seer","Krishna"],"antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}