{"id":"vidhyamitra:city-day:colombo:1982-04-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/colombo/1982-04-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1982-04-13","date_display":"April 13, 1982 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":1982,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445072.770833,"kali_year":5083,"ahargana":1856607.2708,"sun":{"sidereal_longitude":359.3696,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":234.1876,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":234.818,"elapsed_within_tithi_degrees":6.818},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":234.1876,"elapsed_within_degrees":7.521},"yoga":{"number":18,"name":"Varīyān","sum_longitude":233.5573},"karana":{"half_tithi_index":39,"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":1982,"month":4,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2445072.770833,"ahargana":1856607.2708,"kali_year":5083,"ayanamsa_lahiri":23.6055,"grahas":{"sun":{"sidereal_longitude":359.191597,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":231.32029699999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false,"latitude":2.5032},"mars":{"sidereal_longitude":162.16949699999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":true},"mercury":{"sidereal_longitude":0.7362969999999791,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":193.94289700000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":true},"venus":{"sidereal_longitude":313.3694969999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":174.75519699999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":88.0122,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":268.0122,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"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":1982,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445072.770833,"kali_year":5083,"ahargana":1856607.2708,"sun":{"sidereal_longitude":359.3696,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":234.1876,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":234.818,"elapsed_within_tithi_degrees":6.818},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":234.1876,"elapsed_within_degrees":7.521},"yoga":{"number":18,"name":"Varīyān","sum_longitude":233.5573},"karana":{"half_tithi_index":39,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.503,"elongation":125.182},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.503,"opposition_distance":54.818}},"eclipse_window_40days":[]},"city":{"slug":"colombo","name":"Colombo, Sri Lanka","lat":6.9271,"lon":79.8612,"tz_offset_hours":5.5,"country":"LK","tier":"diaspora"},"tier2":{"city":{"slug":"colombo","name":"Colombo, Sri Lanka","lat":6.9271,"lon":79.8612,"tz_offset_hours":5.5,"country":"LK","tier":"diaspora"},"sunriseLocal":"06:04","sunsetLocal":"18:19","solarNoonLocal":"12:11","dayLengthHours":12.258045226331696,"dayLengthDisplay":"12 Hours 15 Mins 29 Secs","nightLengthDisplay":"11 Hours 44 Mins 31 Secs","moonriseLocal":"21:49","moonsetLocal":"09:31","rahuKala":{"name":"Rāhu Kāla","start":"15:15","end":"16:47","startHours":15.253261487077998,"endHours":16.78551714036946,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:07","end":"10:39","startHours":9.12423887391215,"endHours":10.656494527203613,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:11","end":"13:43","startHours":12.188750180495074,"endHours":13.721005833786535,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:20","startHours":8.919938120139955,"endHours":9.328539627684345,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:34","end":"06:54","startHours":6.570479451759713,"endHours":6.8973606577952244,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:47","end":"12:36","startHours":11.780148672950684,"endHours":12.597351688039463,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:26","end":"05:15","startHours":4.4253215371516665,"endHours":5.242524552240447,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:02","end":"06:04","startHours":5.038223798468252,"endHours":6.059727567329226,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:14","end":"15:03","startHours":14.231757718217022,"endHours":15.048960733305801,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:07","end":"18:31","startHours":18.117772793660922,"endHours":18.51777279366092,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:19","end":"18:50","startHours":18.31777279366092,"endHours":18.82852467809141,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:04","end":"19:49","startHours":18.06777279366092,"endHours":19.81777279366092,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:47","end":"00:36","startHours":23.780148672950684,"endHours":24.597351688039463,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:04","end":"07:36","startHours":6.059727567329226,"endHours":7.591983220620688,"quality":"inauspicious"},{"name":"Udveg","start":"07:36","end":"09:07","startHours":7.591983220620688,"endHours":9.12423887391215,"quality":"inauspicious"},{"name":"Chala","start":"09:07","end":"10:39","startHours":9.12423887391215,"endHours":10.656494527203613,"quality":"neutral"},{"name":"Labha","start":"10:39","end":"12:11","startHours":10.656494527203613,"endHours":12.188750180495074,"quality":"auspicious"},{"name":"Amṛta","start":"12:11","end":"13:43","startHours":12.188750180495074,"endHours":13.721005833786535,"quality":"auspicious"},{"name":"Kāla","start":"13:43","end":"15:15","startHours":13.721005833786535,"endHours":15.253261487077998,"quality":"inauspicious"},{"name":"Śubha","start":"15:15","end":"16:47","startHours":15.253261487077998,"endHours":16.78551714036946,"quality":"auspicious"},{"name":"Roga","start":"16:47","end":"18:19","startHours":16.78551714036946,"endHours":18.31777279366092,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:19","end":"19:47","startHours":18.31777279366092,"endHours":19.78551714036946,"quality":"inauspicious"},{"name":"Śubha","start":"19:47","end":"21:15","startHours":19.78551714036946,"endHours":21.253261487078,"quality":"auspicious"},{"name":"Roga","start":"21:15","end":"22:43","startHours":21.253261487078,"endHours":22.721005833786535,"quality":"inauspicious"},{"name":"Udveg","start":"22:43","end":"00:11","startHours":22.721005833786535,"endHours":24.188750180495074,"quality":"inauspicious"},{"name":"Chala","start":"00:11","end":"01:39","startHours":24.188750180495074,"endHours":25.656494527203613,"quality":"neutral"},{"name":"Labha","start":"01:39","end":"03:07","startHours":25.656494527203613,"endHours":27.124238873912148,"quality":"auspicious"},{"name":"Amṛta","start":"03:07","end":"04:36","startHours":27.124238873912148,"endHours":28.591983220620687,"quality":"auspicious"},{"name":"Kāla","start":"04:36","end":"06:04","startHours":28.591983220620687,"endHours":30.059727567329226,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:04","end":"07:04","startHours":6.059727567329226,"endHours":7.059727567329226,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:04","end":"08:04","startHours":7.059727567329226,"endHours":8.059727567329226,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:04","end":"09:04","startHours":8.059727567329226,"endHours":9.059727567329226,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:04","end":"10:04","startHours":9.059727567329226,"endHours":10.059727567329226,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:04","end":"11:04","startHours":10.059727567329226,"endHours":11.059727567329226,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:04","end":"12:04","startHours":11.059727567329226,"endHours":12.059727567329226,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:04","end":"13:04","startHours":12.059727567329226,"endHours":13.059727567329226,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:04","end":"14:04","startHours":13.059727567329226,"endHours":14.059727567329226,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:04","end":"15:04","startHours":14.059727567329226,"endHours":15.059727567329226,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:04","end":"16:04","startHours":15.059727567329226,"endHours":16.059727567329226,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:04","end":"17:04","startHours":16.059727567329226,"endHours":17.059727567329226,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:04","end":"18:04","startHours":17.059727567329226,"endHours":18.059727567329226,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:04","end":"19:04","startHours":18.059727567329226,"endHours":19.059727567329226,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:04","end":"20:04","startHours":19.059727567329226,"endHours":20.059727567329226,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:04","end":"21:04","startHours":20.059727567329226,"endHours":21.059727567329226,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:04","end":"22:04","startHours":21.059727567329226,"endHours":22.059727567329226,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:04","end":"23:04","startHours":22.059727567329226,"endHours":23.059727567329226,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:04","end":"00:04","startHours":23.059727567329226,"endHours":24.059727567329226,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:04","end":"01:04","startHours":24.059727567329226,"endHours":25.059727567329226,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:04","end":"02:04","startHours":25.059727567329226,"endHours":26.059727567329226,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:04","end":"03:04","startHours":26.059727567329226,"endHours":27.059727567329226,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:04","end":"04:04","startHours":27.059727567329226,"endHours":28.059727567329226,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:04","end":"05:04","startHours":28.059727567329226,"endHours":29.059727567329226,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:04","end":"06:04","startHours":29.059727567329226,"endHours":30.059727567329226,"planetary_lord":"Saturn"}],"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","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"North-East","rahuVasa":"North","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":8.865121969511726,"eotMinutes":-0.7698108297043191,"ayanamsa":23.6055}},"calendars":{"vikram_samvat":2039,"vikram_samvatsara":"Yuva","saka_samvat":1904,"saka_samvatsara":"Dundubhi","bengali_samvat":1389,"malayalam_era":1158,"nanakshahi_year":513,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Pañcamī · Vikram 2039 Yuva · Śaka 1904 Dundubhi"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi_ingress":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi_ingress":"Meṣa"},"precedence":2}],"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"colombo"},"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, 1982 CE · Colombo, Sri Lanka · Vidhyamitra","description":"April 13, 1982 CE for Colombo, Sri Lanka: Kṛṣṇa Pañcamī, sūryodaya 06:04, sūryāsta 18:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/colombo/1982-04-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/colombo/1982-04-13","sa":"https://sa.vidhyamitra.com/city/colombo/1982-04-13","hi":"https://hi.vidhyamitra.com/city/colombo/1982-04-13","x-default":"https://vidhyamitra.com/city/colombo/1982-04-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T06:18:21.567Z","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":"2026-06-03T06:18:21.567Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T06:18:21.567Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}