{"id":"vidhyamitra:city-day:chicago:2001-05-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/2001-05-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2001-05-13","date_display":"May 13, 2001 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":2001,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452042.770833,"kali_year":5103,"ahargana":1863577.2708,"sun":{"sidereal_longitude":28.4807,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":273.9755,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":245.4948,"elapsed_within_tithi_degrees":5.4948},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3,"moon_longitude":273.9755,"elapsed_within_degrees":7.3088},"yoga":{"number":23,"name":"Śubha","sum_longitude":302.4562},"karana":{"half_tithi_index":40,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2001,"month":5,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2452042.770833,"ahargana":1863577.2708,"kali_year":5103,"ayanamsa_lahiri":23.872,"grahas":{"sun":{"sidereal_longitude":28.48889200000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":272.49849199999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false,"latitude":-1.1838},"mars":{"sidereal_longitude":245.09099199999991,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":48.11089199999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":52.18539199999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":346.043192,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":38.82679200000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":78.708,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":258.708,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2001,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452042.770833,"kali_year":5103,"ahargana":1863577.2708,"sun":{"sidereal_longitude":28.4807,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":273.9755,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":245.4948,"elapsed_within_tithi_degrees":5.4948},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3,"moon_longitude":273.9755,"elapsed_within_degrees":7.3088},"yoga":{"number":23,"name":"Śubha","sum_longitude":302.4562},"karana":{"half_tithi_index":40,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.184,"elongation":114.505},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.184,"opposition_distance":65.495}},"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":"04:33","sunsetLocal":"19:01","solarNoonLocal":"11:47","dayLengthHours":14.472981857601333,"dayLengthDisplay":"14 Hours 28 Mins 23 Secs","nightLengthDisplay":"9 Hours 31 Mins 37 Secs","moonriseLocal":"23:19","moonsetLocal":"08:46","rahuKala":{"name":"Rāhu Kāla","start":"17:12","end":"19:01","startHours":17.206797550874562,"endHours":19.015920283074728,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:47","end":"13:35","startHours":11.779429354274061,"endHours":13.588552086474227,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:24","end":"17:12","startHours":15.397674818674394,"endHours":17.206797550874562,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"07:55","end":"08:24","startHours":7.919967525580372,"endHours":8.402400254167084,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:09","end":"05:32","startHours":5.145979336206784,"endHours":5.531925519076153,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:18","end":"12:16","startHours":11.29699662568735,"endHours":12.261862082860771,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"02:37","end":"03:35","startHours":2.61320751112655,"endHours":3.5780729682999723,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:20","end":"04:33","startHours":3.336856604006617,"endHours":4.542938425473395,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:09","startHours":14.191592997207616,"endHours":15.156458454381038,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:49","end":"19:13","startHours":18.81592028307473,"endHours":19.215920283074727,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:01","end":"19:37","startHours":19.015920283074728,"endHours":19.618961193808115,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:46","end":"20:31","startHours":18.765920283074728,"endHours":20.515920283074728,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:18","end":"00:16","startHours":23.29699662568735,"endHours":24.261862082860773,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"04:33","end":"06:21","startHours":4.542938425473395,"endHours":6.352061157673561,"quality":"inauspicious"},{"name":"Chala","start":"06:21","end":"08:10","startHours":6.352061157673561,"endHours":8.161183889873728,"quality":"neutral"},{"name":"Labha","start":"08:10","end":"09:58","startHours":8.161183889873728,"endHours":9.970306622073895,"quality":"auspicious"},{"name":"Amṛta","start":"09:58","end":"11:47","startHours":9.970306622073895,"endHours":11.779429354274061,"quality":"auspicious"},{"name":"Kāla","start":"11:47","end":"13:35","startHours":11.779429354274061,"endHours":13.588552086474227,"quality":"inauspicious"},{"name":"Śubha","start":"13:35","end":"15:24","startHours":13.588552086474227,"endHours":15.397674818674394,"quality":"auspicious"},{"name":"Roga","start":"15:24","end":"17:12","startHours":15.397674818674394,"endHours":17.206797550874562,"quality":"inauspicious"},{"name":"Udveg","start":"17:12","end":"19:01","startHours":17.206797550874562,"endHours":19.015920283074728,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:01","end":"20:12","startHours":19.015920283074728,"endHours":20.206797550874562,"quality":"auspicious"},{"name":"Roga","start":"20:12","end":"21:24","startHours":20.206797550874562,"endHours":21.397674818674396,"quality":"inauspicious"},{"name":"Udveg","start":"21:24","end":"22:35","startHours":21.397674818674396,"endHours":22.588552086474227,"quality":"inauspicious"},{"name":"Chala","start":"22:35","end":"23:47","startHours":22.588552086474227,"endHours":23.77942935427406,"quality":"neutral"},{"name":"Labha","start":"23:47","end":"00:58","startHours":23.77942935427406,"endHours":24.970306622073895,"quality":"auspicious"},{"name":"Amṛta","start":"00:58","end":"02:10","startHours":24.970306622073895,"endHours":26.161183889873726,"quality":"auspicious"},{"name":"Kāla","start":"02:10","end":"03:21","startHours":26.161183889873726,"endHours":27.35206115767356,"quality":"inauspicious"},{"name":"Śubha","start":"03:21","end":"04:33","startHours":27.35206115767356,"endHours":28.542938425473395,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"04:33","end":"05:33","startHours":4.542938425473395,"endHours":5.542938425473395,"planetary_lord":"Sun"},{"name":"Hora 2","start":"05:33","end":"06:33","startHours":5.542938425473395,"endHours":6.542938425473395,"planetary_lord":"Mars"},{"name":"Hora 3","start":"06:33","end":"07:33","startHours":6.542938425473395,"endHours":7.542938425473395,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"07:33","end":"08:33","startHours":7.542938425473395,"endHours":8.542938425473395,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"08:33","end":"09:33","startHours":8.542938425473395,"endHours":9.542938425473395,"planetary_lord":"Moon"},{"name":"Hora 6","start":"09:33","end":"10:33","startHours":9.542938425473395,"endHours":10.542938425473395,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"10:33","end":"11:33","startHours":10.542938425473395,"endHours":11.542938425473395,"planetary_lord":"Venus"},{"name":"Hora 8","start":"11:33","end":"12:33","startHours":11.542938425473395,"endHours":12.542938425473395,"planetary_lord":"Sun"},{"name":"Hora 9","start":"12:33","end":"13:33","startHours":12.542938425473395,"endHours":13.542938425473395,"planetary_lord":"Mars"},{"name":"Hora 10","start":"13:33","end":"14:33","startHours":13.542938425473395,"endHours":14.542938425473395,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"14:33","end":"15:33","startHours":14.542938425473395,"endHours":15.542938425473395,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"15:33","end":"16:33","startHours":15.542938425473395,"endHours":16.542938425473395,"planetary_lord":"Moon"},{"name":"Hora 13","start":"16:33","end":"17:33","startHours":16.542938425473395,"endHours":17.542938425473395,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"17:33","end":"18:33","startHours":17.542938425473395,"endHours":18.542938425473395,"planetary_lord":"Venus"},{"name":"Hora 15","start":"18:33","end":"19:33","startHours":18.542938425473395,"endHours":19.542938425473395,"planetary_lord":"Sun"},{"name":"Hora 16","start":"19:33","end":"20:33","startHours":19.542938425473395,"endHours":20.542938425473395,"planetary_lord":"Mars"},{"name":"Hora 17","start":"20:33","end":"21:33","startHours":20.542938425473395,"endHours":21.542938425473395,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"21:33","end":"22:33","startHours":21.542938425473395,"endHours":22.542938425473395,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"22:33","end":"23:33","startHours":22.542938425473395,"endHours":23.542938425473395,"planetary_lord":"Moon"},{"name":"Hora 20","start":"23:33","end":"00:33","startHours":23.542938425473395,"endHours":24.542938425473395,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"00:33","end":"01:33","startHours":24.542938425473395,"endHours":25.542938425473395,"planetary_lord":"Venus"},{"name":"Hora 22","start":"01:33","end":"02:33","startHours":25.542938425473395,"endHours":26.542938425473395,"planetary_lord":"Sun"},{"name":"Hora 23","start":"02:33","end":"03:33","startHours":26.542938425473395,"endHours":27.542938425473395,"planetary_lord":"Mars"},{"name":"Hora 24","start":"03:33","end":"04:33","startHours":27.542938425473395,"endHours":28.542938425473395,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"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":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":18.35801243030412,"eotMinutes":3.7534387435564067,"ayanamsa":23.872}},"calendars":{"vikram_samvat":2058,"vikram_samvatsara":"Jaya","saka_samvat":1923,"saka_samvatsara":"Vṛṣa","bengali_samvat":1408,"malayalam_era":1177,"nanakshahi_year":532,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Ṣaṣṭhī · Vikram 2058 Jaya · Śaka 1923 Vṛṣa"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 May 13, 2001 CE · Chicago, USA · Vidhyamitra","description":"May 13, 2001 CE for Chicago, USA: Kṛṣṇa Ṣaṣṭhī, sūryodaya 04:33, sūryāsta 19:01.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/2001-05-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/2001-05-13","sa":"https://sa.vidhyamitra.com/city/chicago/2001-05-13","hi":"https://hi.vidhyamitra.com/city/chicago/2001-05-13","x-default":"https://vidhyamitra.com/city/chicago/2001-05-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T22:06:06.391Z","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":"2026-06-01T22:06:06.391Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T22:06:06.391Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}