{"id":"vidhyamitra:city-day:ranchi:2037-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ranchi/2037-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2037-02-01","date_display":"February 1, 2037 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":2037,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2465090.770833,"kali_year":5138,"ahargana":1876625.2708,"sun":{"sidereal_longitude":288.0718,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":113.1286,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":185.0568,"elapsed_within_tithi_degrees":5.0568},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":113.1286,"elapsed_within_degrees":6.462},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":41.2004},"karana":{"half_tithi_index":30,"name":"Bālava"},"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":2037,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2465090.770833,"ahargana":1876625.2708,"kali_year":5138,"ayanamsa_lahiri":24.3711,"grahas":{"sun":{"sidereal_longitude":288.1419619999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":114.582562,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false,"latitude":0.4517},"mars":{"sidereal_longitude":244.79946199999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":268.553362,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":51.03426200000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":275.801062,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":125.908162,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":107.3622,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":287.3622,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":2037,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2465090.770833,"kali_year":5138,"ahargana":1876625.2708,"sun":{"sidereal_longitude":288.0718,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":113.1286,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":185.0568,"elapsed_within_tithi_degrees":5.0568},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":113.1286,"elapsed_within_degrees":6.462},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":41.2004},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.452,"elongation":174.943},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.452,"opposition_distance":5.057}},"eclipse_window_40days":[{"offset_days":-16,"type":"solar","occurs":true,"moon_latitude":1.49,"elongation":2.819},{"offset_days":14,"type":"solar","occurs":true,"moon_latitude":-1.163,"elongation":0.724}]},"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"sunriseLocal":"06:29","sunsetLocal":"17:36","solarNoonLocal":"12:02","dayLengthHours":11.113491253416566,"dayLengthDisplay":"11 Hours 06 Mins 49 Secs","nightLengthDisplay":"12 Hours 53 Mins 11 Secs","moonriseLocal":"17:59","moonsetLocal":"06:58","rahuKala":{"name":"Rāhu Kāla","start":"16:13","end":"17:36","startHours":16.208408355321136,"endHours":17.59759476199821,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:02","end":"13:26","startHours":12.040849135289925,"endHours":13.430035541966998,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:49","end":"16:13","startHours":14.819221948644067,"endHours":16.208408355321136,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:05","end":"09:27","startHours":9.077251467712175,"endHours":9.447701176159393,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:57","end":"07:15","startHours":6.947165644140666,"endHours":7.2435254108984415,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:25","startHours":11.670399426842708,"endHours":12.411298843737145,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:00","end":"05:45","startHours":5.002304674792767,"endHours":5.743204091687205,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:33","end":"06:29","startHours":5.557979237463596,"endHours":6.484103508581643,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:54","end":"14:38","startHours":13.89309767752602,"endHours":14.633997094420458,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:24","end":"17:48","startHours":17.39759476199821,"endHours":17.79759476199821,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:36","end":"18:04","startHours":17.59759476199821,"endHours":18.060656897557234,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:21","end":"19:06","startHours":17.34759476199821,"endHours":19.09759476199821,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:25","startHours":23.670399426842707,"endHours":24.411298843737143,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:29","end":"07:52","startHours":6.484103508581643,"endHours":7.873289915258713,"quality":"inauspicious"},{"name":"Chala","start":"07:52","end":"09:16","startHours":7.873289915258713,"endHours":9.262476321935784,"quality":"neutral"},{"name":"Labha","start":"09:16","end":"10:39","startHours":9.262476321935784,"endHours":10.651662728612855,"quality":"auspicious"},{"name":"Amṛta","start":"10:39","end":"12:02","startHours":10.651662728612855,"endHours":12.040849135289925,"quality":"auspicious"},{"name":"Kāla","start":"12:02","end":"13:26","startHours":12.040849135289925,"endHours":13.430035541966998,"quality":"inauspicious"},{"name":"Śubha","start":"13:26","end":"14:49","startHours":13.430035541966998,"endHours":14.819221948644067,"quality":"auspicious"},{"name":"Roga","start":"14:49","end":"16:13","startHours":14.819221948644067,"endHours":16.208408355321136,"quality":"inauspicious"},{"name":"Udveg","start":"16:13","end":"17:36","startHours":16.208408355321136,"endHours":17.59759476199821,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:36","end":"19:13","startHours":17.59759476199821,"endHours":19.20840835532114,"quality":"auspicious"},{"name":"Roga","start":"19:13","end":"20:49","startHours":19.20840835532114,"endHours":20.819221948644067,"quality":"inauspicious"},{"name":"Udveg","start":"20:49","end":"22:26","startHours":20.819221948644067,"endHours":22.430035541966998,"quality":"inauspicious"},{"name":"Chala","start":"22:26","end":"00:02","startHours":22.430035541966998,"endHours":24.040849135289925,"quality":"neutral"},{"name":"Labha","start":"00:02","end":"01:39","startHours":24.040849135289925,"endHours":25.651662728612855,"quality":"auspicious"},{"name":"Amṛta","start":"01:39","end":"03:16","startHours":25.651662728612855,"endHours":27.262476321935786,"quality":"auspicious"},{"name":"Kāla","start":"03:16","end":"04:52","startHours":27.262476321935786,"endHours":28.873289915258717,"quality":"inauspicious"},{"name":"Śubha","start":"04:52","end":"06:29","startHours":28.873289915258717,"endHours":30.484103508581644,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:29","end":"07:29","startHours":6.484103508581643,"endHours":7.484103508581643,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:29","end":"08:29","startHours":7.484103508581643,"endHours":8.484103508581644,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:29","end":"09:29","startHours":8.484103508581644,"endHours":9.484103508581644,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:29","end":"10:29","startHours":9.484103508581644,"endHours":10.484103508581644,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:29","end":"11:29","startHours":10.484103508581644,"endHours":11.484103508581644,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:29","end":"12:29","startHours":11.484103508581644,"endHours":12.484103508581644,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:29","end":"13:29","startHours":12.484103508581644,"endHours":13.484103508581644,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:29","end":"14:29","startHours":13.484103508581644,"endHours":14.484103508581644,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:29","end":"15:29","startHours":14.484103508581644,"endHours":15.484103508581644,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:29","end":"16:29","startHours":15.484103508581644,"endHours":16.484103508581644,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:29","end":"17:29","startHours":16.484103508581644,"endHours":17.484103508581644,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:29","end":"18:29","startHours":17.484103508581644,"endHours":18.484103508581644,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:29","end":"19:29","startHours":18.484103508581644,"endHours":19.484103508581644,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:29","end":"20:29","startHours":19.484103508581644,"endHours":20.484103508581644,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:29","end":"21:29","startHours":20.484103508581644,"endHours":21.484103508581644,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:29","end":"22:29","startHours":21.484103508581644,"endHours":22.484103508581644,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:29","end":"23:29","startHours":22.484103508581644,"endHours":23.484103508581644,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:29","end":"00:29","startHours":23.484103508581644,"endHours":24.484103508581644,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:29","end":"01:29","startHours":24.484103508581644,"endHours":25.484103508581644,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:29","end":"02:29","startHours":25.484103508581644,"endHours":26.484103508581644,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:29","end":"03:29","startHours":26.484103508581644,"endHours":27.484103508581644,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:29","end":"04:29","startHours":27.484103508581644,"endHours":28.484103508581644,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:29","end":"05:29","startHours":28.484103508581644,"endHours":29.484103508581644,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:29","end":"06:29","startHours":29.484103508581644,"endHours":30.484103508581644,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Vajra","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":-17.048306254595424,"eotMinutes":-13.689348117395623,"ayanamsa":24.3711}},"calendars":{"vikram_samvat":2094,"vikram_samvatsara":"Pramoda","saka_samvat":1959,"saka_samvatsara":"Piṅgala","bengali_samvat":1444,"malayalam_era":1213,"nanakshahi_year":568,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Pratipada · Vikram 2094 Pramoda · Śaka 1959 Piṅgala"},"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":"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":"ranchi"},"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, 2037 CE · Ranchi, Jharkhand · Vidhyamitra","description":"February 1, 2037 CE for Ranchi, Jharkhand: Kṛṣṇa Pratipada, sūryodaya 06:29, sūryāsta 17:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ranchi/2037-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ranchi/2037-02-01","sa":"https://sa.vidhyamitra.com/city/ranchi/2037-02-01","hi":"https://hi.vidhyamitra.com/city/ranchi/2037-02-01","x-default":"https://vidhyamitra.com/city/ranchi/2037-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T13:09:37.324Z","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":"2026-05-15T13:09:37.324Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T13:09:37.324Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}