{"id":"vidhyamitra:city-day:solapur:2011-01-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/solapur/2011-01-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-01-18","date_display":"January 18, 2011 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":2011,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455579.770833,"kali_year":5112,"ahargana":1867114.2708,"sun":{"sidereal_longitude":273.453,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":68.6849,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":155.2319,"elapsed_within_tithi_degrees":11.2319},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":68.6849,"elapsed_within_degrees":2.0182},"yoga":{"number":26,"name":"Indra","sum_longitude":342.1379},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2011,"month":1,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455579.770833,"ahargana":1867114.2708,"kali_year":5112,"ayanamsa_lahiri":24.0073,"grahas":{"sun":{"sidereal_longitude":273.56945199999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":69.16105199999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false,"latitude":0.2052},"mars":{"sidereal_longitude":277.490452,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":251.44805199999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":335.213252,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":226.75515199999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":172.90975200000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":251.3007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":71.3007,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":2011,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455579.770833,"kali_year":5112,"ahargana":1867114.2708,"sun":{"sidereal_longitude":273.453,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":68.6849,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":155.2319,"elapsed_within_tithi_degrees":11.2319},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":68.6849,"elapsed_within_degrees":2.0182},"yoga":{"number":26,"name":"Indra","sum_longitude":342.1379},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.205,"elongation":155.232},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.205,"opposition_distance":24.768}},"eclipse_window_40days":[{"offset_days":-14,"type":"solar","occurs":true,"moon_latitude":0.37,"elongation":2.307}]},"city":{"slug":"solapur","name":"Solapur, Maharashtra","lat":17.6599,"lon":75.9064,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"solapur","name":"Solapur, Maharashtra","lat":17.6599,"lon":75.9064,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"sunriseLocal":"07:01","sunsetLocal":"18:13","solarNoonLocal":"12:37","dayLengthHours":11.20684588880485,"dayLengthDisplay":"11 Hours 12 Mins 25 Secs","nightLengthDisplay":"12 Hours 47 Mins 35 Secs","moonriseLocal":"16:25","moonsetLocal":"05:33","rahuKala":{"name":"Rāhu Kāla","start":"15:25","end":"16:49","startHours":15.413771965229373,"endHours":16.81462770132998,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:49","end":"11:13","startHours":9.810349020826948,"endHours":11.211204756927554,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:37","end":"14:01","startHours":12.61206049302816,"endHours":14.012916229128766,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:37","end":"10:00","startHours":9.623568256013534,"endHours":9.997129785640361,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:29","end":"07:46","startHours":7.475589460659271,"endHours":7.774438684360733,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:14","end":"12:59","startHours":12.238498963401332,"endHours":12.985622022654988,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:31","end":"06:16","startHours":5.5143914301184225,"endHours":6.261514489372079,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:04","end":"07:01","startHours":6.074733724558665,"endHours":7.008637548625735,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:29","end":"15:14","startHours":14.479868141162301,"endHours":15.226991200415958,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:01","end":"18:25","startHours":18.015483437430586,"endHours":18.415483437430584,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:13","end":"18:41","startHours":18.215483437430585,"endHours":18.68243534946412,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:58","end":"19:43","startHours":17.965483437430585,"endHours":19.715483437430585,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:14","end":"00:59","startHours":24.23849896340133,"endHours":24.98562202265499,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:01","end":"08:25","startHours":7.008637548625735,"endHours":8.409493284726341,"quality":"inauspicious"},{"name":"Udveg","start":"08:25","end":"09:49","startHours":8.409493284726341,"endHours":9.810349020826948,"quality":"inauspicious"},{"name":"Chala","start":"09:49","end":"11:13","startHours":9.810349020826948,"endHours":11.211204756927554,"quality":"neutral"},{"name":"Labha","start":"11:13","end":"12:37","startHours":11.211204756927554,"endHours":12.61206049302816,"quality":"auspicious"},{"name":"Amṛta","start":"12:37","end":"14:01","startHours":12.61206049302816,"endHours":14.012916229128766,"quality":"auspicious"},{"name":"Kāla","start":"14:01","end":"15:25","startHours":14.012916229128766,"endHours":15.413771965229373,"quality":"inauspicious"},{"name":"Śubha","start":"15:25","end":"16:49","startHours":15.413771965229373,"endHours":16.81462770132998,"quality":"auspicious"},{"name":"Roga","start":"16:49","end":"18:13","startHours":16.81462770132998,"endHours":18.215483437430585,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:13","end":"19:49","startHours":18.215483437430585,"endHours":19.81462770132998,"quality":"inauspicious"},{"name":"Śubha","start":"19:49","end":"21:25","startHours":19.81462770132998,"endHours":21.413771965229373,"quality":"auspicious"},{"name":"Roga","start":"21:25","end":"23:01","startHours":21.413771965229373,"endHours":23.012916229128766,"quality":"inauspicious"},{"name":"Udveg","start":"23:01","end":"00:37","startHours":23.012916229128766,"endHours":24.61206049302816,"quality":"inauspicious"},{"name":"Chala","start":"00:37","end":"02:13","startHours":24.61206049302816,"endHours":26.211204756927554,"quality":"neutral"},{"name":"Labha","start":"02:13","end":"03:49","startHours":26.211204756927554,"endHours":27.810349020826948,"quality":"auspicious"},{"name":"Amṛta","start":"03:49","end":"05:25","startHours":27.810349020826948,"endHours":29.40949328472634,"quality":"auspicious"},{"name":"Kāla","start":"05:25","end":"07:01","startHours":29.40949328472634,"endHours":31.008637548625735,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:01","end":"08:01","startHours":7.008637548625735,"endHours":8.008637548625735,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:01","end":"09:01","startHours":8.008637548625735,"endHours":9.008637548625735,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:01","end":"10:01","startHours":9.008637548625735,"endHours":10.008637548625735,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:01","end":"11:01","startHours":10.008637548625735,"endHours":11.008637548625735,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:01","end":"12:01","startHours":11.008637548625735,"endHours":12.008637548625735,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:01","end":"13:01","startHours":12.008637548625735,"endHours":13.008637548625735,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:01","end":"14:01","startHours":13.008637548625735,"endHours":14.008637548625735,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:01","end":"15:01","startHours":14.008637548625735,"endHours":15.008637548625735,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:01","end":"16:01","startHours":15.008637548625735,"endHours":16.008637548625735,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:01","end":"17:01","startHours":16.008637548625735,"endHours":17.008637548625735,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:01","end":"18:01","startHours":17.008637548625735,"endHours":18.008637548625735,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:01","end":"19:01","startHours":18.008637548625735,"endHours":19.008637548625735,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:01","end":"20:01","startHours":19.008637548625735,"endHours":20.008637548625735,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:01","end":"21:01","startHours":20.008637548625735,"endHours":21.008637548625735,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:01","end":"22:01","startHours":21.008637548625735,"endHours":22.008637548625735,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:01","end":"23:01","startHours":22.008637548625735,"endHours":23.008637548625735,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:01","end":"00:01","startHours":23.008637548625735,"endHours":24.008637548625735,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:01","end":"01:01","startHours":24.008637548625735,"endHours":25.008637548625735,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:01","end":"02:01","startHours":25.008637548625735,"endHours":26.008637548625735,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:01","end":"03:01","startHours":26.008637548625735,"endHours":27.008637548625735,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:01","end":"04:01","startHours":27.008637548625735,"endHours":28.008637548625735,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:01","end":"05:01","startHours":28.008637548625735,"endHours":29.008637548625735,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:01","end":"06:01","startHours":29.008637548625735,"endHours":30.008637548625735,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:01","end":"07:01","startHours":30.008637548625735,"endHours":31.008637548625735,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-20.643160111093167,"eotMinutes":-10.349229581689698,"ayanamsa":24.0073}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Trayodaśī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"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},{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"solapur"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 18, 2011 CE · Solapur, Maharashtra · Vidhyamitra","description":"January 18, 2011 CE for Solapur, Maharashtra: Śukla Trayodaśī, sūryodaya 07:01, sūryāsta 18:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/solapur/2011-01-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/solapur/2011-01-18","sa":"https://sa.vidhyamitra.com/city/solapur/2011-01-18","hi":"https://hi.vidhyamitra.com/city/solapur/2011-01-18","x-default":"https://vidhyamitra.com/city/solapur/2011-01-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T08:28:58.888Z","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":"2026-05-17T08:28:58.888Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T08:28:58.888Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}