{"id":"vidhyamitra:city-day:chicago:1981-10-22:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/1981-10-22","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-10-22","date_display":"October 22, 1981 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":1981,"month":10,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444899.770833,"kali_year":5083,"ahargana":1856434.2708,"sun":{"sidereal_longitude":184.2824,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":115.4093,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":291.1269,"elapsed_within_tithi_degrees":3.1269},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":115.4093,"elapsed_within_degrees":8.7426},"yoga":{"number":23,"name":"Śubha","sum_longitude":299.6917},"karana":{"half_tithi_index":48,"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":1981,"month":10,"day":22,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444899.770833,"ahargana":1856434.2708,"kali_year":5083,"ayanamsa_lahiri":23.5988,"grahas":{"sun":{"sidereal_longitude":184.95610699999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":118.24120700000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false,"latitude":1.4065},"mars":{"sidereal_longitude":127.21230700000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":177.707807,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":179.22510699999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":231.23200700000007,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":170.86420699999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":97.1785,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":277.1785,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":"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":1981,"month":10,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444899.770833,"kali_year":5083,"ahargana":1856434.2708,"sun":{"sidereal_longitude":184.2824,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":115.4093,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":291.1269,"elapsed_within_tithi_degrees":3.1269},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":115.4093,"elapsed_within_degrees":8.7426},"yoga":{"number":23,"name":"Śubha","sum_longitude":299.6917},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.406,"elongation":68.873},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.406,"opposition_distance":111.127}},"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":"06:10","sunsetLocal":"16:59","solarNoonLocal":"11:35","dayLengthHours":10.820923017557242,"dayLengthDisplay":"10 Hours 49 Mins 15 Secs","nightLengthDisplay":"13 Hours 10 Mins 45 Secs","moonriseLocal":"00:12","moonsetLocal":"14:04","rahuKala":{"name":"Rāhu Kāla","start":"12:56","end":"14:17","startHours":12.92877422871467,"endHours":14.281389605909325,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:10","end":"07:31","startHours":6.165697342741393,"endHours":7.518312719936048,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:52","end":"10:13","startHours":8.870928097130705,"endHours":10.223543474325359,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:41","end":"09:03","startHours":8.690579380171416,"endHours":9.051276814089992,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:37","end":"06:54","startHours":6.616569135139612,"endHours":6.905127082274471,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:13","end":"11:56","startHours":11.215461417601439,"endHours":11.936856285438587,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:43","end":"05:27","startHours":4.722907607067095,"endHours":5.4443024749042435,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:16","end":"06:10","startHours":5.2639537579449565,"endHours":6.165697342741393,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:23","end":"14:06","startHours":13.379646021112887,"endHours":14.101040888950036,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:47","end":"17:11","startHours":16.786620360298635,"endHours":17.186620360298633,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:59","end":"17:26","startHours":16.986620360298634,"endHours":17.43749215269685,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:44","end":"18:29","startHours":16.736620360298634,"endHours":18.486620360298634,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:13","end":"23:56","startHours":23.21546141760144,"endHours":23.936856285438587,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:10","end":"07:31","startHours":6.165697342741393,"endHours":7.518312719936048,"quality":"auspicious"},{"name":"Roga","start":"07:31","end":"08:52","startHours":7.518312719936048,"endHours":8.870928097130705,"quality":"inauspicious"},{"name":"Udveg","start":"08:52","end":"10:13","startHours":8.870928097130705,"endHours":10.223543474325359,"quality":"inauspicious"},{"name":"Chala","start":"10:13","end":"11:35","startHours":10.223543474325359,"endHours":11.576158851520013,"quality":"neutral"},{"name":"Labha","start":"11:35","end":"12:56","startHours":11.576158851520013,"endHours":12.92877422871467,"quality":"auspicious"},{"name":"Amṛta","start":"12:56","end":"14:17","startHours":12.92877422871467,"endHours":14.281389605909325,"quality":"auspicious"},{"name":"Kāla","start":"14:17","end":"15:38","startHours":14.281389605909325,"endHours":15.634004983103978,"quality":"inauspicious"},{"name":"Śubha","start":"15:38","end":"16:59","startHours":15.634004983103978,"endHours":16.986620360298634,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"16:59","end":"18:38","startHours":16.986620360298634,"endHours":18.634004983103978,"quality":"auspicious"},{"name":"Kāla","start":"18:38","end":"20:17","startHours":18.634004983103978,"endHours":20.281389605909325,"quality":"inauspicious"},{"name":"Śubha","start":"20:17","end":"21:56","startHours":20.281389605909325,"endHours":21.92877422871467,"quality":"auspicious"},{"name":"Roga","start":"21:56","end":"23:35","startHours":21.92877422871467,"endHours":23.576158851520013,"quality":"inauspicious"},{"name":"Udveg","start":"23:35","end":"01:13","startHours":23.576158851520013,"endHours":25.223543474325357,"quality":"inauspicious"},{"name":"Chala","start":"01:13","end":"02:52","startHours":25.223543474325357,"endHours":26.8709280971307,"quality":"neutral"},{"name":"Labha","start":"02:52","end":"04:31","startHours":26.8709280971307,"endHours":28.51831271993605,"quality":"auspicious"},{"name":"Amṛta","start":"04:31","end":"06:10","startHours":28.51831271993605,"endHours":30.165697342741392,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:10","end":"07:10","startHours":6.165697342741393,"endHours":7.165697342741393,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:10","end":"08:10","startHours":7.165697342741393,"endHours":8.165697342741392,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:10","end":"09:10","startHours":8.165697342741392,"endHours":9.165697342741392,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:10","end":"10:10","startHours":9.165697342741392,"endHours":10.165697342741392,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:10","end":"11:10","startHours":10.165697342741392,"endHours":11.165697342741392,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:10","end":"12:10","startHours":11.165697342741392,"endHours":12.165697342741392,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:10","end":"13:10","startHours":12.165697342741392,"endHours":13.165697342741392,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:10","end":"14:10","startHours":13.165697342741392,"endHours":14.165697342741392,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:10","end":"15:10","startHours":14.165697342741392,"endHours":15.165697342741392,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:10","end":"16:10","startHours":15.165697342741392,"endHours":16.165697342741392,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:10","end":"17:10","startHours":16.165697342741392,"endHours":17.165697342741392,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:10","end":"18:10","startHours":17.165697342741392,"endHours":18.165697342741392,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:10","end":"19:10","startHours":18.165697342741392,"endHours":19.165697342741392,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:10","end":"20:10","startHours":19.165697342741392,"endHours":20.165697342741392,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:10","end":"21:10","startHours":20.165697342741392,"endHours":21.165697342741392,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:10","end":"22:10","startHours":21.165697342741392,"endHours":22.165697342741392,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:10","end":"23:10","startHours":22.165697342741392,"endHours":23.165697342741392,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:10","end":"00:10","startHours":23.165697342741392,"endHours":24.165697342741392,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:10","end":"01:10","startHours":24.165697342741392,"endHours":25.165697342741392,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:10","end":"02:10","startHours":25.165697342741392,"endHours":26.165697342741392,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:10","end":"03:10","startHours":26.165697342741392,"endHours":27.165697342741392,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:10","end":"04:10","startHours":27.165697342741392,"endHours":28.165697342741392,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:10","end":"05:10","startHours":28.165697342741392,"endHours":29.165697342741392,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:10","end":"06:10","startHours":29.165697342741392,"endHours":30.165697342741392,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-10.959577373184304,"eotMinutes":15.949668908799335,"ayanamsa":23.5988}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"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 Daśamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"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 October 22, 1981 CE · Chicago, USA · Vidhyamitra","description":"October 22, 1981 CE for Chicago, USA: Kṛṣṇa Daśamī, sūryodaya 06:10, sūryāsta 16:59.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/1981-10-22","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/1981-10-22","sa":"https://sa.vidhyamitra.com/city/chicago/1981-10-22","hi":"https://hi.vidhyamitra.com/city/chicago/1981-10-22","x-default":"https://vidhyamitra.com/city/chicago/1981-10-22"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T06:10:54.065Z","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":"2026-06-02T06:10:54.065Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T06:10:54.065Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}