{"id":"vidhyamitra:city-day:solapur:2021-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/solapur/2021-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2021-02-01","date_display":"February 1, 2021 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":2021,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459246.770833,"kali_year":5122,"ahargana":1870781.2708,"sun":{"sidereal_longitude":288.2149,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":148.5028,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":220.2879,"elapsed_within_tithi_degrees":4.2879},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":148.5028,"elapsed_within_degrees":1.8362},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":76.7178},"karana":{"half_tithi_index":36,"name":"Bava"},"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":2021,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459246.770833,"ahargana":1870781.2708,"kali_year":5122,"ayanamsa_lahiri":24.1476,"grahas":{"sun":{"sidereal_longitude":288.2465460000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":149.71304600000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false,"latitude":4.4985},"mars":{"sidereal_longitude":18.169745999999975,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":301.918146,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":285.91874600000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"venus":{"sidereal_longitude":274.91334600000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":281.13894600000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":57.0054,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":237.0054,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","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":2021,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459246.770833,"kali_year":5122,"ahargana":1870781.2708,"sun":{"sidereal_longitude":288.2149,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":148.5028,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":220.2879,"elapsed_within_tithi_degrees":4.2879},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":148.5028,"elapsed_within_degrees":1.8362},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":76.7178},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.498,"elongation":139.712},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.498,"opposition_distance":40.288}},"eclipse_window_40days":[]},"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":"06:59","sunsetLocal":"18:21","solarNoonLocal":"12:40","dayLengthHours":11.373852005357396,"dayLengthDisplay":"11 Hours 22 Mins 26 Secs","nightLengthDisplay":"12 Hours 37 Mins 34 Secs","moonriseLocal":"21:20","moonsetLocal":"09:31","rahuKala":{"name":"Rāhu Kāla","start":"08:24","end":"09:49","startHours":8.402534633280904,"endHours":9.824266133950578,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:15","end":"12:40","startHours":11.245997634620252,"endHours":12.667729135289928,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:05","end":"15:31","startHours":14.0894606359596,"endHours":15.511192136629276,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"10:01","startHours":9.634701933861288,"endHours":10.013830334039868,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:27","end":"07:45","startHours":7.454713632834454,"endHours":7.758016352977318,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:17","end":"13:03","startHours":12.288600735111347,"endHours":13.046857535468506,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:28","end":"06:13","startHours":5.46428953189691,"endHours":6.22254633225407,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:02","end":"06:59","startHours":6.03298213216478,"endHours":6.980803132611229,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:34","end":"15:19","startHours":14.563371136182827,"endHours":15.321627936539986,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:09","end":"18:33","startHours":18.154655137968625,"endHours":18.554655137968624,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:21","end":"18:50","startHours":18.354655137968624,"endHours":18.82856563819185,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:06","end":"19:51","startHours":18.104655137968624,"endHours":19.854655137968624,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:17","end":"01:03","startHours":24.288600735111345,"endHours":25.046857535468504,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:59","end":"08:24","startHours":6.980803132611229,"endHours":8.402534633280904,"quality":"auspicious"},{"name":"Kāla","start":"08:24","end":"09:49","startHours":8.402534633280904,"endHours":9.824266133950578,"quality":"inauspicious"},{"name":"Śubha","start":"09:49","end":"11:15","startHours":9.824266133950578,"endHours":11.245997634620252,"quality":"auspicious"},{"name":"Roga","start":"11:15","end":"12:40","startHours":11.245997634620252,"endHours":12.667729135289928,"quality":"inauspicious"},{"name":"Udveg","start":"12:40","end":"14:05","startHours":12.667729135289928,"endHours":14.0894606359596,"quality":"inauspicious"},{"name":"Chala","start":"14:05","end":"15:31","startHours":14.0894606359596,"endHours":15.511192136629276,"quality":"neutral"},{"name":"Labha","start":"15:31","end":"16:56","startHours":15.511192136629276,"endHours":16.932923637298952,"quality":"auspicious"},{"name":"Amṛta","start":"16:56","end":"18:21","startHours":16.932923637298952,"endHours":18.354655137968624,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:21","end":"19:56","startHours":18.354655137968624,"endHours":19.93292363729895,"quality":"neutral"},{"name":"Labha","start":"19:56","end":"21:31","startHours":19.93292363729895,"endHours":21.511192136629276,"quality":"auspicious"},{"name":"Amṛta","start":"21:31","end":"23:05","startHours":21.511192136629276,"endHours":23.0894606359596,"quality":"auspicious"},{"name":"Kāla","start":"23:05","end":"00:40","startHours":23.0894606359596,"endHours":24.667729135289925,"quality":"inauspicious"},{"name":"Śubha","start":"00:40","end":"02:15","startHours":24.667729135289925,"endHours":26.245997634620252,"quality":"auspicious"},{"name":"Roga","start":"02:15","end":"03:49","startHours":26.245997634620252,"endHours":27.824266133950577,"quality":"inauspicious"},{"name":"Udveg","start":"03:49","end":"05:24","startHours":27.824266133950577,"endHours":29.4025346332809,"quality":"inauspicious"},{"name":"Chala","start":"05:24","end":"06:59","startHours":29.4025346332809,"endHours":30.98080313261123,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:59","end":"07:59","startHours":6.980803132611229,"endHours":7.980803132611229,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:59","end":"08:59","startHours":7.980803132611229,"endHours":8.980803132611229,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:59","end":"09:59","startHours":8.980803132611229,"endHours":9.980803132611229,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:59","end":"10:59","startHours":9.980803132611229,"endHours":10.980803132611229,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:59","end":"11:59","startHours":10.980803132611229,"endHours":11.980803132611229,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:59","end":"12:59","startHours":11.980803132611229,"endHours":12.980803132611229,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:59","end":"13:59","startHours":12.980803132611229,"endHours":13.980803132611229,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:59","end":"14:59","startHours":13.980803132611229,"endHours":14.980803132611229,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:59","end":"15:59","startHours":14.980803132611229,"endHours":15.980803132611229,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:59","end":"16:59","startHours":15.980803132611229,"endHours":16.98080313261123,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:59","end":"17:59","startHours":16.98080313261123,"endHours":17.98080313261123,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:59","end":"18:59","startHours":17.98080313261123,"endHours":18.98080313261123,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:59","end":"19:59","startHours":18.98080313261123,"endHours":19.98080313261123,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:59","end":"20:59","startHours":19.98080313261123,"endHours":20.98080313261123,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:59","end":"21:59","startHours":20.98080313261123,"endHours":21.98080313261123,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:59","end":"22:59","startHours":21.98080313261123,"endHours":22.98080313261123,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:59","end":"23:59","startHours":22.98080313261123,"endHours":23.98080313261123,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:59","end":"00:59","startHours":23.98080313261123,"endHours":24.98080313261123,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:59","end":"01:59","startHours":24.98080313261123,"endHours":25.98080313261123,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:59","end":"02:59","startHours":25.98080313261123,"endHours":26.98080313261123,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:59","end":"03:59","startHours":26.98080313261123,"endHours":27.98080313261123,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:59","end":"04:59","startHours":27.98080313261123,"endHours":28.98080313261123,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:59","end":"05:59","startHours":28.98080313261123,"endHours":29.98080313261123,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:59","end":"06:59","startHours":29.98080313261123,"endHours":30.98080313261123,"planetary_lord":"Venus"}],"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":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"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":-17.081701538159646,"eotMinutes":-13.689348117395623,"ayanamsa":24.1476}},"calendars":{"vikram_samvat":2078,"vikram_samvatsara":"Ānanda","saka_samvat":1943,"saka_samvatsara":"Plava","bengali_samvat":1428,"malayalam_era":1197,"nanakshahi_year":552,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Caturthī · Vikram 2078 Ānanda · Śaka 1943 Plava"},"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":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":[]},"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 February 1, 2021 CE · Solapur, Maharashtra · Vidhyamitra","description":"February 1, 2021 CE for Solapur, Maharashtra: Kṛṣṇa Caturthī, sūryodaya 06:59, sūryāsta 18:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/solapur/2021-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/solapur/2021-02-01","sa":"https://sa.vidhyamitra.com/city/solapur/2021-02-01","hi":"https://hi.vidhyamitra.com/city/solapur/2021-02-01","x-default":"https://vidhyamitra.com/city/solapur/2021-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T22:36:20.264Z","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":"2026-05-14T22:36:20.264Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T22:36:20.264Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}