{"id":"vidhyamitra:city-day:kolhapur:1963-04-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kolhapur/1963-04-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1963-04-13","date_display":"April 13, 1963 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":1963,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438132.770833,"kali_year":5064,"ahargana":1849667.2708,"sun":{"sidereal_longitude":359.2879,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":226.4272,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":227.1393,"elapsed_within_tithi_degrees":11.1393},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":226.4272,"elapsed_within_degrees":13.0939},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":225.7151},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1963,"month":4,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438132.770833,"ahargana":1849667.2708,"kali_year":5064,"ayanamsa_lahiri":23.34,"grahas":{"sun":{"sidereal_longitude":359.065356,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":222.77175599999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false,"latitude":3.4101},"mars":{"sidereal_longitude":106.50025599999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":13.24345599999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":339.500456,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":323.888956,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":298.372656,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":95.7268,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":275.7268,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":1963,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438132.770833,"kali_year":5064,"ahargana":1849667.2708,"sun":{"sidereal_longitude":359.2879,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":226.4272,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":227.1393,"elapsed_within_tithi_degrees":11.1393},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":226.4272,"elapsed_within_degrees":13.0939},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":225.7151},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.41,"elongation":132.861},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.41,"opposition_distance":47.139}},"eclipse_window_40days":[]},"city":{"slug":"kolhapur","name":"Kolhāpur, Maharashtra","lat":16.705,"lon":74.2433,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"kolhapur","name":"Kolhāpur, Maharashtra","lat":16.705,"lon":74.2433,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"sunriseLocal":"06:20","sunsetLocal":"18:48","solarNoonLocal":"12:34","dayLengthHours":12.469236188043594,"dayLengthDisplay":"12 Hours 28 Mins 09 Secs","nightLengthDisplay":"11 Hours 31 Mins 51 Secs","moonriseLocal":"21:53","moonsetLocal":"09:04","rahuKala":{"name":"Rāhu Kāla","start":"09:27","end":"11:00","startHours":9.445967800150841,"endHours":11.004622323656289,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:07","end":"15:41","startHours":14.121931370667188,"endHours":15.680585894172637,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:20","end":"07:53","startHours":6.328658753139942,"endHours":7.887313276645392,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:14","end":"09:39","startHours":9.238147197016781,"endHours":9.653788403284901,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:51","end":"07:11","startHours":6.848210260975092,"endHours":7.180723225989588,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:59","startHours":12.147635640893618,"endHours":12.978918053429858,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:40","end":"05:30","startHours":4.666093928067463,"endHours":5.497376340603703,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:17","end":"06:20","startHours":5.289555737469643,"endHours":6.328658753139942,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:38","end":"15:28","startHours":14.641482878502337,"endHours":15.472765291038577,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:36","end":"19:00","startHours":18.597894941183537,"endHours":18.997894941183535,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:48","end":"19:19","startHours":18.797894941183536,"endHours":19.317446449018686,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:33","end":"20:18","startHours":18.547894941183536,"endHours":20.297894941183536,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:59","startHours":24.14763564089362,"endHours":24.978918053429858,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:20","end":"07:53","startHours":6.328658753139942,"endHours":7.887313276645392,"quality":"inauspicious"},{"name":"Śubha","start":"07:53","end":"09:27","startHours":7.887313276645392,"endHours":9.445967800150841,"quality":"auspicious"},{"name":"Roga","start":"09:27","end":"11:00","startHours":9.445967800150841,"endHours":11.004622323656289,"quality":"inauspicious"},{"name":"Udveg","start":"11:00","end":"12:34","startHours":11.004622323656289,"endHours":12.563276847161738,"quality":"inauspicious"},{"name":"Chala","start":"12:34","end":"14:07","startHours":12.563276847161738,"endHours":14.121931370667188,"quality":"neutral"},{"name":"Labha","start":"14:07","end":"15:41","startHours":14.121931370667188,"endHours":15.680585894172637,"quality":"auspicious"},{"name":"Amṛta","start":"15:41","end":"17:14","startHours":15.680585894172637,"endHours":17.239240417678086,"quality":"auspicious"},{"name":"Kāla","start":"17:14","end":"18:48","startHours":17.239240417678086,"endHours":18.797894941183536,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:48","end":"20:14","startHours":18.797894941183536,"endHours":20.239240417678086,"quality":"auspicious"},{"name":"Amṛta","start":"20:14","end":"21:41","startHours":20.239240417678086,"endHours":21.680585894172637,"quality":"auspicious"},{"name":"Kāla","start":"21:41","end":"23:07","startHours":21.680585894172637,"endHours":23.121931370667188,"quality":"inauspicious"},{"name":"Śubha","start":"23:07","end":"00:34","startHours":23.121931370667188,"endHours":24.563276847161738,"quality":"auspicious"},{"name":"Roga","start":"00:34","end":"02:00","startHours":24.563276847161738,"endHours":26.00462232365629,"quality":"inauspicious"},{"name":"Udveg","start":"02:00","end":"03:27","startHours":26.00462232365629,"endHours":27.44596780015084,"quality":"inauspicious"},{"name":"Chala","start":"03:27","end":"04:53","startHours":27.44596780015084,"endHours":28.887313276645394,"quality":"neutral"},{"name":"Labha","start":"04:53","end":"06:20","startHours":28.887313276645394,"endHours":30.32865875313994,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:20","end":"07:20","startHours":6.328658753139942,"endHours":7.328658753139942,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:20","end":"08:20","startHours":7.328658753139942,"endHours":8.328658753139942,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:20","end":"09:20","startHours":8.328658753139942,"endHours":9.328658753139942,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:20","end":"10:20","startHours":9.328658753139942,"endHours":10.328658753139942,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:20","end":"11:20","startHours":10.328658753139942,"endHours":11.328658753139942,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:20","end":"12:20","startHours":11.328658753139942,"endHours":12.328658753139942,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:20","end":"13:20","startHours":12.328658753139942,"endHours":13.328658753139942,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:20","end":"14:20","startHours":13.328658753139942,"endHours":14.328658753139942,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:20","end":"15:20","startHours":14.328658753139942,"endHours":15.328658753139942,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:20","end":"16:20","startHours":15.328658753139942,"endHours":16.32865875313994,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:20","end":"17:20","startHours":16.32865875313994,"endHours":17.32865875313994,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:20","end":"18:20","startHours":17.32865875313994,"endHours":18.32865875313994,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:20","end":"19:20","startHours":18.32865875313994,"endHours":19.32865875313994,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:20","end":"20:20","startHours":19.32865875313994,"endHours":20.32865875313994,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:20","end":"21:20","startHours":20.32865875313994,"endHours":21.32865875313994,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:20","end":"22:20","startHours":21.32865875313994,"endHours":22.32865875313994,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:20","end":"23:20","startHours":22.32865875313994,"endHours":23.32865875313994,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:20","end":"00:20","startHours":23.32865875313994,"endHours":24.32865875313994,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:20","end":"01:20","startHours":24.32865875313994,"endHours":25.32865875313994,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:20","end":"02:20","startHours":25.32865875313994,"endHours":26.32865875313994,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:20","end":"03:20","startHours":26.32865875313994,"endHours":27.32865875313994,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:20","end":"04:20","startHours":27.32865875313994,"endHours":28.32865875313994,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:20","end":"05:20","startHours":28.32865875313994,"endHours":29.32865875313994,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:20","end":"06:20","startHours":29.32865875313994,"endHours":30.32865875313994,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"East","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":8.719569436397896,"eotMinutes":-0.7698108297043191,"ayanamsa":23.34}},"calendars":{"vikram_samvat":2020,"vikram_samvatsara":"Nala","saka_samvat":1885,"saka_samvatsara":"Śobhana","bengali_samvat":1370,"malayalam_era":1139,"nanakshahi_year":494,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Kṛṣṇa Pakṣa","solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Kṛṣṇa Caturthī · Vikram 2020 Nala · Śaka 1885 Śobhana"},"festivals":[{"id":"mina-sankranti","name":"Mīna Saṅkrānti","name_sanskrit":"मीन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Pisces; Mīna-māsa begins.","vrata":false,"detection":{"sun_rashi":"Mīna"},"precedence":5},{"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":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"kolhapur"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 13, 1963 CE · Kolhāpur, Maharashtra · Vidhyamitra","description":"April 13, 1963 CE for Kolhāpur, Maharashtra: Kṛṣṇa Caturthī, sūryodaya 06:20, sūryāsta 18:48.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kolhapur/1963-04-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kolhapur/1963-04-13","sa":"https://sa.vidhyamitra.com/city/kolhapur/1963-04-13","hi":"https://hi.vidhyamitra.com/city/kolhapur/1963-04-13","x-default":"https://vidhyamitra.com/city/kolhapur/1963-04-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T19:31:15.976Z","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":"2026-05-20T19:31:15.976Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T19:31:15.976Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}