{"id":"vidhyamitra:city-day:chicago:2012-01-30:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/2012-01-30","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2012-01-30","date_display":"January 30, 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":1,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455956.770833,"kali_year":5113,"ahargana":1867491.2708,"sun":{"sidereal_longitude":285.4842,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":4.3385,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":78.8542,"elapsed_within_tithi_degrees":6.8542},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":4.3385,"elapsed_within_degrees":4.3385},"yoga":{"number":22,"name":"Sādhya","sum_longitude":289.8227},"karana":{"half_tithi_index":13,"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":2012,"month":1,"day":30,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455956.770833,"ahargana":1867491.2708,"kali_year":5113,"ayanamsa_lahiri":24.0217,"grahas":{"sun":{"sidereal_longitude":285.514048,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":3.3015480000000252,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false,"latitude":3.2888},"mars":{"sidereal_longitude":148.62924799999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":279.628748,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":8.226047999999992,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":324.870048,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":185.16244800000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":231.3255,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":51.3255,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":2012,"month":1,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455956.770833,"kali_year":5113,"ahargana":1867491.2708,"sun":{"sidereal_longitude":285.4842,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":4.3385,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":78.8542,"elapsed_within_tithi_degrees":6.8542},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":4.3385,"elapsed_within_degrees":4.3385},"yoga":{"number":22,"name":"Sādhya","sum_longitude":289.8227},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.289,"elongation":78.854},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.289,"opposition_distance":101.146}},"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":"07:06","sunsetLocal":"17:02","solarNoonLocal":"12:04","dayLengthHours":9.92390763336524,"dayLengthDisplay":"9 Hours 55 Mins 26 Secs","nightLengthDisplay":"14 Hours 04 Mins 34 Secs","moonriseLocal":"10:33","moonsetLocal":"23:57","rahuKala":{"name":"Rāhu Kāla","start":"08:21","end":"09:35","startHours":8.34314040375078,"endHours":9.583628857921436,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:49","end":"12:04","startHours":10.82411731209209,"endHours":12.064605766262744,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:18","end":"14:33","startHours":13.3050942204334,"endHours":14.545582674604056,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:25","end":"09:45","startHours":9.418230397365349,"endHours":9.749027318477523,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:31","end":"07:47","startHours":7.5161481009703435,"endHours":7.780785637860083,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:24","startHours":11.73380884515057,"endHours":12.395402687374919,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:47","end":"06:26","startHours":5.779464265131427,"endHours":6.441058107355776,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:17","end":"07:06","startHours":6.275659646799689,"endHours":7.1026519495801255,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:43","end":"14:23","startHours":13.718590371823618,"endHours":14.380184214047967,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:50","end":"17:14","startHours":16.826559582945364,"endHours":17.226559582945363,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:02","end":"17:26","startHours":17.026559582945364,"endHours":17.440055734335584,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:47","end":"18:32","startHours":16.776559582945364,"endHours":18.526559582945364,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:24","startHours":23.73380884515057,"endHours":24.39540268737492,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:06","end":"08:21","startHours":7.1026519495801255,"endHours":8.34314040375078,"quality":"auspicious"},{"name":"Kāla","start":"08:21","end":"09:35","startHours":8.34314040375078,"endHours":9.583628857921436,"quality":"inauspicious"},{"name":"Śubha","start":"09:35","end":"10:49","startHours":9.583628857921436,"endHours":10.82411731209209,"quality":"auspicious"},{"name":"Roga","start":"10:49","end":"12:04","startHours":10.82411731209209,"endHours":12.064605766262744,"quality":"inauspicious"},{"name":"Udveg","start":"12:04","end":"13:18","startHours":12.064605766262744,"endHours":13.3050942204334,"quality":"inauspicious"},{"name":"Chala","start":"13:18","end":"14:33","startHours":13.3050942204334,"endHours":14.545582674604056,"quality":"neutral"},{"name":"Labha","start":"14:33","end":"15:47","startHours":14.545582674604056,"endHours":15.786071128774708,"quality":"auspicious"},{"name":"Amṛta","start":"15:47","end":"17:02","startHours":15.786071128774708,"endHours":17.026559582945364,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:02","end":"18:47","startHours":17.026559582945364,"endHours":18.786071128774708,"quality":"neutral"},{"name":"Labha","start":"18:47","end":"20:33","startHours":18.786071128774708,"endHours":20.545582674604056,"quality":"auspicious"},{"name":"Amṛta","start":"20:33","end":"22:18","startHours":20.545582674604056,"endHours":22.3050942204334,"quality":"auspicious"},{"name":"Kāla","start":"22:18","end":"00:04","startHours":22.3050942204334,"endHours":24.064605766262744,"quality":"inauspicious"},{"name":"Śubha","start":"00:04","end":"01:49","startHours":24.064605766262744,"endHours":25.82411731209209,"quality":"auspicious"},{"name":"Roga","start":"01:49","end":"03:35","startHours":25.82411731209209,"endHours":27.583628857921433,"quality":"inauspicious"},{"name":"Udveg","start":"03:35","end":"05:21","startHours":27.583628857921433,"endHours":29.34314040375078,"quality":"inauspicious"},{"name":"Chala","start":"05:21","end":"07:06","startHours":29.34314040375078,"endHours":31.102651949580125,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:06","end":"08:06","startHours":7.1026519495801255,"endHours":8.102651949580125,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:06","end":"09:06","startHours":8.102651949580125,"endHours":9.102651949580125,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:06","end":"10:06","startHours":9.102651949580125,"endHours":10.102651949580125,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:06","end":"11:06","startHours":10.102651949580125,"endHours":11.102651949580125,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:06","end":"12:06","startHours":11.102651949580125,"endHours":12.102651949580125,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:06","end":"13:06","startHours":12.102651949580125,"endHours":13.102651949580125,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:06","end":"14:06","startHours":13.102651949580125,"endHours":14.102651949580125,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:06","end":"15:06","startHours":14.102651949580125,"endHours":15.102651949580125,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:06","end":"16:06","startHours":15.102651949580125,"endHours":16.102651949580125,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:06","end":"17:06","startHours":16.102651949580125,"endHours":17.102651949580125,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:06","end":"18:06","startHours":17.102651949580125,"endHours":18.102651949580125,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:06","end":"19:06","startHours":18.102651949580125,"endHours":19.102651949580125,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:06","end":"20:06","startHours":19.102651949580125,"endHours":20.102651949580125,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:06","end":"21:06","startHours":20.102651949580125,"endHours":21.102651949580125,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:06","end":"22:06","startHours":21.102651949580125,"endHours":22.102651949580125,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:06","end":"23:06","startHours":22.102651949580125,"endHours":23.102651949580125,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:06","end":"00:06","startHours":23.102651949580125,"endHours":24.102651949580125,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:06","end":"01:06","startHours":24.102651949580125,"endHours":25.102651949580125,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:06","end":"02:06","startHours":25.102651949580125,"endHours":26.102651949580125,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:06","end":"03:06","startHours":26.102651949580125,"endHours":27.102651949580125,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:06","end":"04:06","startHours":27.102651949580125,"endHours":28.102651949580125,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:06","end":"05:06","startHours":28.102651949580125,"endHours":29.102651949580125,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:06","end":"06:06","startHours":29.102651949580125,"endHours":30.102651949580125,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:06","end":"07:06","startHours":30.102651949580125,"endHours":31.102651949580125,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","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":"Saumya","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-17.863011983888747,"eotMinutes":-13.357145975764517,"ayanamsa":24.0217}},"calendars":{"vikram_samvat":2069,"vikram_samvatsara":"Viśvāvasu","saka_samvat":1934,"saka_samvatsara":"Nandana","bengali_samvat":1419,"malayalam_era":1188,"nanakshahi_year":543,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Saptamī · Vikram 2069 Viśvāvasu · Śaka 1934 Nandana"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"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":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 30, 2012 CE · Chicago, USA · Vidhyamitra","description":"January 30, 2012 CE for Chicago, USA: Śukla Saptamī, sūryodaya 07:06, sūryāsta 17:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/2012-01-30","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/2012-01-30","sa":"https://sa.vidhyamitra.com/city/chicago/2012-01-30","hi":"https://hi.vidhyamitra.com/city/chicago/2012-01-30","x-default":"https://vidhyamitra.com/city/chicago/2012-01-30"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-19T04:50:30.515Z","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":"2026-05-19T04:50:30.515Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-19T04:50:30.515Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}