{"id":"vidhyamitra:city-day:solapur:2181-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/solapur/2181-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2181-02-01","date_display":"February 1, 2181 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":2181,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517685.770833,"kali_year":5282,"ahargana":1929220.2708,"sun":{"sidereal_longitude":285.7605,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":120.6317,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.8712,"elapsed_within_tithi_degrees":2.8712},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":120.6317,"elapsed_within_degrees":0.6317},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":46.3923},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2181,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517685.770833,"ahargana":1929220.2708,"kali_year":5282,"ayanamsa_lahiri":26.3826,"grahas":{"sun":{"sidereal_longitude":286.18184700000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":120.98544700000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false,"latitude":-4.4314},"mars":{"sidereal_longitude":46.73014699999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":259.2469470000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":109.51514700000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":282.707047,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":76.81044700000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":200.626,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":20.626,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":2181,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517685.770833,"kali_year":5282,"ahargana":1929220.2708,"sun":{"sidereal_longitude":285.7605,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":120.6317,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.8712,"elapsed_within_tithi_degrees":2.8712},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":120.6317,"elapsed_within_degrees":0.6317},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":46.3923},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.431,"elongation":165.129},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.431,"opposition_distance":14.871}},"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":11.376050427075743,"dayLengthDisplay":"11 Hours 22 Mins 34 Secs","nightLengthDisplay":"12 Hours 37 Mins 26 Secs","moonriseLocal":"19:21","moonsetLocal":"07:58","rahuKala":{"name":"Rāhu Kāla","start":"14:05","end":"15:31","startHours":14.089735438674396,"endHours":15.511741742058863,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:59","end":"08:24","startHours":6.979703921752056,"endHours":8.401710225136524,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:49","end":"11:15","startHours":9.823716528520992,"endHours":11.24572283190546,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"10:01","startHours":9.634115688069729,"endHours":10.013317368972254,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:27","end":"07:45","startHours":7.453706022880212,"endHours":7.7570673676022315,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:17","end":"13:03","startHours":12.2885274543874,"endHours":13.046930816192452,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:28","end":"06:13","startHours":5.462897198141957,"endHours":6.221300559947006,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:02","end":"06:59","startHours":6.031699719495744,"endHours":6.979703921752056,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:34","end":"15:19","startHours":14.56373753980255,"endHours":15.3221409016076,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:09","end":"18:33","startHours":18.1557543488278,"endHours":18.555754348827797,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:21","end":"18:50","startHours":18.355754348827798,"endHours":18.829756449955955,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:06","end":"19:51","startHours":18.105754348827798,"endHours":19.855754348827798,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:17","end":"01:03","startHours":24.2885274543874,"endHours":25.04693081619245,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:59","end":"08:24","startHours":6.979703921752056,"endHours":8.401710225136524,"quality":"auspicious"},{"name":"Roga","start":"08:24","end":"09:49","startHours":8.401710225136524,"endHours":9.823716528520992,"quality":"inauspicious"},{"name":"Udveg","start":"09:49","end":"11:15","startHours":9.823716528520992,"endHours":11.24572283190546,"quality":"inauspicious"},{"name":"Chala","start":"11:15","end":"12:40","startHours":11.24572283190546,"endHours":12.667729135289928,"quality":"neutral"},{"name":"Labha","start":"12:40","end":"14:05","startHours":12.667729135289928,"endHours":14.089735438674396,"quality":"auspicious"},{"name":"Amṛta","start":"14:05","end":"15:31","startHours":14.089735438674396,"endHours":15.511741742058863,"quality":"auspicious"},{"name":"Kāla","start":"15:31","end":"16:56","startHours":15.511741742058863,"endHours":16.93374804544333,"quality":"inauspicious"},{"name":"Śubha","start":"16:56","end":"18:21","startHours":16.93374804544333,"endHours":18.355754348827798,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:21","end":"19:56","startHours":18.355754348827798,"endHours":19.93374804544333,"quality":"auspicious"},{"name":"Kāla","start":"19:56","end":"21:31","startHours":19.93374804544333,"endHours":21.511741742058863,"quality":"inauspicious"},{"name":"Śubha","start":"21:31","end":"23:05","startHours":21.511741742058863,"endHours":23.089735438674396,"quality":"auspicious"},{"name":"Roga","start":"23:05","end":"00:40","startHours":23.089735438674396,"endHours":24.667729135289925,"quality":"inauspicious"},{"name":"Udveg","start":"00:40","end":"02:15","startHours":24.667729135289925,"endHours":26.24572283190546,"quality":"inauspicious"},{"name":"Chala","start":"02:15","end":"03:49","startHours":26.24572283190546,"endHours":27.82371652852099,"quality":"neutral"},{"name":"Labha","start":"03:49","end":"05:24","startHours":27.82371652852099,"endHours":29.401710225136522,"quality":"auspicious"},{"name":"Amṛta","start":"05:24","end":"06:59","startHours":29.401710225136522,"endHours":30.979703921752055,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:59","end":"07:59","startHours":6.979703921752056,"endHours":7.979703921752056,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:59","end":"08:59","startHours":7.979703921752056,"endHours":8.979703921752055,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:59","end":"09:59","startHours":8.979703921752055,"endHours":9.979703921752055,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:59","end":"10:59","startHours":9.979703921752055,"endHours":10.979703921752055,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:59","end":"11:59","startHours":10.979703921752055,"endHours":11.979703921752055,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:59","end":"12:59","startHours":11.979703921752055,"endHours":12.979703921752055,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:59","end":"13:59","startHours":12.979703921752055,"endHours":13.979703921752055,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:59","end":"14:59","startHours":13.979703921752055,"endHours":14.979703921752055,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:59","end":"15:59","startHours":14.979703921752055,"endHours":15.979703921752055,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:59","end":"16:59","startHours":15.979703921752055,"endHours":16.979703921752055,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:59","end":"17:59","startHours":16.979703921752055,"endHours":17.979703921752055,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:59","end":"18:59","startHours":17.979703921752055,"endHours":18.979703921752055,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:59","end":"19:59","startHours":18.979703921752055,"endHours":19.979703921752055,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:59","end":"20:59","startHours":19.979703921752055,"endHours":20.979703921752055,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:59","end":"21:59","startHours":20.979703921752055,"endHours":21.979703921752055,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:59","end":"22:59","startHours":21.979703921752055,"endHours":22.979703921752055,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:59","end":"23:59","startHours":22.979703921752055,"endHours":23.979703921752055,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:59","end":"00:59","startHours":23.979703921752055,"endHours":24.979703921752055,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:59","end":"01:59","startHours":24.979703921752055,"endHours":25.979703921752055,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:59","end":"02:59","startHours":25.979703921752055,"endHours":26.979703921752055,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:59","end":"03:59","startHours":26.979703921752055,"endHours":27.979703921752055,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:59","end":"04:59","startHours":27.979703921752055,"endHours":28.979703921752055,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:59","end":"05:59","startHours":28.979703921752055,"endHours":29.979703921752055,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:59","end":"06:59","startHours":29.979703921752055,"endHours":30.979703921752055,"planetary_lord":"Moon"}],"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":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-17.033854183296008,"eotMinutes":-13.689348117395623,"ayanamsa":26.3826}},"calendars":{"vikram_samvat":2238,"vikram_samvatsara":"Jaya","saka_samvat":2103,"saka_samvatsara":"Vṛṣa","bengali_samvat":1588,"malayalam_era":1357,"nanakshahi_year":712,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Dvitīyā · Vikram 2238 Jaya · Śaka 2103 Vṛṣa"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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, 2181 CE · Solapur, Maharashtra · Vidhyamitra","description":"February 1, 2181 CE for Solapur, Maharashtra: Kṛṣṇa Dvitīyā, sūryodaya 06:59, sūryāsta 18:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/solapur/2181-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/solapur/2181-02-01","sa":"https://sa.vidhyamitra.com/city/solapur/2181-02-01","hi":"https://hi.vidhyamitra.com/city/solapur/2181-02-01","x-default":"https://vidhyamitra.com/city/solapur/2181-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T21:54:03.056Z","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":"2026-06-03T21:54:03.056Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T21:54:03.056Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}