{"id":"vidhyamitra:city-day:chicago:2017-01-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/2017-01-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2017-01-28","date_display":"January 28, 2017 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":2017,"month":1,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457781.770833,"kali_year":5118,"ahargana":1869316.2708,"sun":{"sidereal_longitude":284.1607,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":283.8675,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":359.7068,"elapsed_within_tithi_degrees":11.7068},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":283.8675,"elapsed_within_degrees":3.8675},"yoga":{"number":16,"name":"Siddhi","sum_longitude":208.0281},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2017,"month":1,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457781.770833,"ahargana":1869316.2708,"kali_year":5118,"ayanamsa_lahiri":24.0915,"grahas":{"sun":{"sidereal_longitude":284.21101999999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":284.64332,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false,"latitude":2.2998},"mars":{"sidereal_longitude":335.50281999999993,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":261.17352000000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":178.41971999999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":330.14012,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":239.95571999999993,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":134.6282,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":314.6282,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":2017,"month":1,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457781.770833,"kali_year":5118,"ahargana":1869316.2708,"sun":{"sidereal_longitude":284.1607,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":283.8675,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":359.7068,"elapsed_within_tithi_degrees":11.7068},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":283.8675,"elapsed_within_degrees":3.8675},"yoga":{"number":16,"name":"Siddhi","sum_longitude":208.0281},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.3,"elongation":0.293},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.3,"opposition_distance":179.707}},"eclipse_window_40days":[{"offset_days":14,"type":"lunar","occurs":true,"moon_latitude":-1.052,"opposition_distance":1.908}]},"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":"07:07","sunsetLocal":"17:00","solarNoonLocal":"12:03","dayLengthHours":9.879701740663238,"dayLengthDisplay":"9 Hours 52 Mins 47 Secs","nightLengthDisplay":"14 Hours 07 Mins 13 Secs","moonriseLocal":"07:10","moonsetLocal":"17:01","rahuKala":{"name":"Rāhu Kāla","start":"09:35","end":"10:49","startHours":9.588305098748622,"endHours":10.823267816331526,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:18","end":"14:32","startHours":13.293193251497335,"endHours":14.528155969080242,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:07","end":"08:21","startHours":7.118379663582813,"endHours":8.353342381165717,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:25","end":"09:45","startHours":9.423643403070901,"endHours":9.752966794426342,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:32","end":"07:48","startHours":7.530033902777114,"endHours":7.793492615861467,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:23","startHours":11.728907142558992,"endHours":12.387553925269874,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:48","end":"06:28","startHours":5.801086098161048,"endHours":6.45973288087193,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:18","end":"07:07","startHours":6.295071185194209,"endHours":7.118379663582813,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:42","end":"14:22","startHours":13.704847490691638,"endHours":14.36349427340252,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:48","end":"17:12","startHours":16.79808140424605,"endHours":17.19808140424605,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:00","end":"17:25","startHours":16.99808140424605,"endHours":17.409735643440353,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:45","end":"18:30","startHours":16.74808140424605,"endHours":18.49808140424605,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:23","startHours":23.72890714255899,"endHours":24.387553925269874,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:07","end":"08:21","startHours":7.118379663582813,"endHours":8.353342381165717,"quality":"inauspicious"},{"name":"Śubha","start":"08:21","end":"09:35","startHours":8.353342381165717,"endHours":9.588305098748622,"quality":"auspicious"},{"name":"Roga","start":"09:35","end":"10:49","startHours":9.588305098748622,"endHours":10.823267816331526,"quality":"inauspicious"},{"name":"Udveg","start":"10:49","end":"12:03","startHours":10.823267816331526,"endHours":12.058230533914433,"quality":"inauspicious"},{"name":"Chala","start":"12:03","end":"13:18","startHours":12.058230533914433,"endHours":13.293193251497335,"quality":"neutral"},{"name":"Labha","start":"13:18","end":"14:32","startHours":13.293193251497335,"endHours":14.528155969080242,"quality":"auspicious"},{"name":"Amṛta","start":"14:32","end":"15:46","startHours":14.528155969080242,"endHours":15.763118686663146,"quality":"auspicious"},{"name":"Kāla","start":"15:46","end":"17:00","startHours":15.763118686663146,"endHours":16.99808140424605,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:00","end":"18:46","startHours":16.99808140424605,"endHours":18.763118686663145,"quality":"auspicious"},{"name":"Amṛta","start":"18:46","end":"20:32","startHours":18.763118686663145,"endHours":20.52815596908024,"quality":"auspicious"},{"name":"Kāla","start":"20:32","end":"22:18","startHours":20.52815596908024,"endHours":22.293193251497335,"quality":"inauspicious"},{"name":"Śubha","start":"22:18","end":"00:03","startHours":22.293193251497335,"endHours":24.058230533914433,"quality":"auspicious"},{"name":"Roga","start":"00:03","end":"01:49","startHours":24.058230533914433,"endHours":25.823267816331526,"quality":"inauspicious"},{"name":"Udveg","start":"01:49","end":"03:35","startHours":25.823267816331526,"endHours":27.58830509874862,"quality":"inauspicious"},{"name":"Chala","start":"03:35","end":"05:21","startHours":27.58830509874862,"endHours":29.353342381165717,"quality":"neutral"},{"name":"Labha","start":"05:21","end":"07:07","startHours":29.353342381165717,"endHours":31.118379663582814,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:07","end":"08:07","startHours":7.118379663582813,"endHours":8.118379663582813,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:07","end":"09:07","startHours":8.118379663582813,"endHours":9.118379663582813,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:07","end":"10:07","startHours":9.118379663582813,"endHours":10.118379663582813,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:07","end":"11:07","startHours":10.118379663582813,"endHours":11.118379663582813,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:07","end":"12:07","startHours":11.118379663582813,"endHours":12.118379663582813,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:07","end":"13:07","startHours":12.118379663582813,"endHours":13.118379663582813,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:07","end":"14:07","startHours":13.118379663582813,"endHours":14.118379663582813,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:07","end":"15:07","startHours":14.118379663582813,"endHours":15.118379663582813,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:07","end":"16:07","startHours":15.118379663582813,"endHours":16.118379663582814,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:07","end":"17:07","startHours":16.118379663582814,"endHours":17.118379663582814,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:07","end":"18:07","startHours":17.118379663582814,"endHours":18.118379663582814,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:07","end":"19:07","startHours":18.118379663582814,"endHours":19.118379663582814,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:07","end":"20:07","startHours":19.118379663582814,"endHours":20.118379663582814,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:07","end":"21:07","startHours":20.118379663582814,"endHours":21.118379663582814,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:07","end":"22:07","startHours":21.118379663582814,"endHours":22.118379663582814,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:07","end":"23:07","startHours":22.118379663582814,"endHours":23.118379663582814,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:07","end":"00:07","startHours":23.118379663582814,"endHours":24.118379663582814,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:07","end":"01:07","startHours":24.118379663582814,"endHours":25.118379663582814,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:07","end":"02:07","startHours":25.118379663582814,"endHours":26.118379663582814,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:07","end":"03:07","startHours":26.118379663582814,"endHours":27.118379663582814,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:07","end":"04:07","startHours":27.118379663582814,"endHours":28.118379663582814,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:07","end":"05:07","startHours":28.118379663582814,"endHours":29.118379663582814,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:07","end":"06:07","startHours":29.118379663582814,"endHours":30.118379663582814,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:07","end":"07:07","startHours":30.118379663582814,"endHours":31.118379663582814,"planetary_lord":"Mercury"}],"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":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-18.187049842173064,"eotMinutes":-12.974632034865841,"ayanamsa":24.0915}},"calendars":{"vikram_samvat":2074,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1939,"saka_samvatsara":"Hemalambī","bengali_samvat":1424,"malayalam_era":1193,"nanakshahi_year":548,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Amāvasyā · Vikram 2074 Sādhāraṇa · Śaka 1939 Hemalambī"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","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 January 28, 2017 CE · Chicago, USA · Vidhyamitra","description":"January 28, 2017 CE for Chicago, USA: Kṛṣṇa Amāvasyā, sūryodaya 07:07, sūryāsta 17:00.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/2017-01-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/2017-01-28","sa":"https://sa.vidhyamitra.com/city/chicago/2017-01-28","hi":"https://hi.vidhyamitra.com/city/chicago/2017-01-28","x-default":"https://vidhyamitra.com/city/chicago/2017-01-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T10:05:01.642Z","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":"2026-05-31T10:05:01.642Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T10:05:01.642Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}