{"id":"vidhyamitra:city-day:lucknow:2027-08-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/lucknow/2027-08-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2027-08-13","date_display":"August 13, 2027 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":2027,"month":8,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461630.770833,"kali_year":5129,"ahargana":1873165.2708,"sun":{"sidereal_longitude":115.1979,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":246.7531,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":131.5553,"elapsed_within_tithi_degrees":11.5553},"nakshatra":{"number":19,"name":"Mūla","pada":3,"moon_longitude":246.7531,"elapsed_within_degrees":6.7531},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":1.951},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2027,"month":8,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461630.770833,"ahargana":1873165.2708,"kali_year":5129,"ayanamsa_lahiri":24.2387,"grahas":{"sun":{"sidereal_longitude":115.86406,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":249.46306000000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false,"latitude":-3.1207},"mars":{"sidereal_longitude":172.63675999999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":117.18165999999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":129.29056000000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":115.79146000000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":3.6470600000000104,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":290.6896,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":110.6896,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"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":2027,"month":8,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461630.770833,"kali_year":5129,"ahargana":1873165.2708,"sun":{"sidereal_longitude":115.1979,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":246.7531,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":131.5553,"elapsed_within_tithi_degrees":11.5553},"nakshatra":{"number":19,"name":"Mūla","pada":3,"moon_longitude":246.7531,"elapsed_within_degrees":6.7531},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":1.951},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.121,"elongation":131.555},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.121,"opposition_distance":48.445}},"eclipse_window_40days":[{"offset_days":4,"type":"lunar","occurs":true,"moon_latitude":0.487,"opposition_distance":2.324}]},"city":{"slug":"lucknow","name":"Lucknow, Uttar Pradesh","lat":26.8467,"lon":80.9462,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"lucknow","name":"Lucknow, Uttar Pradesh","lat":26.8467,"lon":80.9462,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"sunriseLocal":"05:36","sunsetLocal":"18:45","solarNoonLocal":"12:11","dayLengthHours":13.153327924983504,"dayLengthDisplay":"13 Hours 09 Mins 12 Secs","nightLengthDisplay":"10 Hours 50 Mins 48 Secs","moonriseLocal":"15:53","moonsetLocal":"02:18","rahuKala":{"name":"Rāhu Kāla","start":"10:32","end":"12:11","startHours":10.535446021680654,"endHours":12.179612012303592,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:28","end":"17:07","startHours":15.467943993549468,"endHours":17.112109984172406,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:15","end":"08:53","startHours":7.247114040434777,"endHours":8.891280031057715,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:40","end":"09:07","startHours":8.672057898974657,"endHours":9.110502163140774,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:09","end":"06:30","startHours":6.151003380019485,"endHours":6.501758791352379,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:37","startHours":11.741167748137475,"endHours":12.618056276469709,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:51","end":"04:44","startHours":3.8491709931473723,"endHours":4.7260595214796055,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:30","end":"05:36","startHours":4.506837389396548,"endHours":5.60294804981184,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:15","startHours":14.371833333134177,"endHours":15.24872186146641,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:33","end":"18:57","startHours":18.556275974795344,"endHours":18.956275974795343,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:45","end":"19:18","startHours":18.756275974795344,"endHours":19.30433130500299,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:30","end":"20:15","startHours":18.506275974795344,"endHours":20.256275974795344,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:37","startHours":23.741167748137478,"endHours":24.61805627646971,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:36","end":"07:15","startHours":5.60294804981184,"endHours":7.247114040434777,"quality":"neutral"},{"name":"Labha","start":"07:15","end":"08:53","startHours":7.247114040434777,"endHours":8.891280031057715,"quality":"auspicious"},{"name":"Amṛta","start":"08:53","end":"10:32","startHours":8.891280031057715,"endHours":10.535446021680654,"quality":"auspicious"},{"name":"Kāla","start":"10:32","end":"12:11","startHours":10.535446021680654,"endHours":12.179612012303592,"quality":"inauspicious"},{"name":"Śubha","start":"12:11","end":"13:49","startHours":12.179612012303592,"endHours":13.82377800292653,"quality":"auspicious"},{"name":"Roga","start":"13:49","end":"15:28","startHours":13.82377800292653,"endHours":15.467943993549468,"quality":"inauspicious"},{"name":"Udveg","start":"15:28","end":"17:07","startHours":15.467943993549468,"endHours":17.112109984172406,"quality":"inauspicious"},{"name":"Chala","start":"17:07","end":"18:45","startHours":17.112109984172406,"endHours":18.756275974795344,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:45","end":"20:07","startHours":18.756275974795344,"endHours":20.112109984172406,"quality":"inauspicious"},{"name":"Udveg","start":"20:07","end":"21:28","startHours":20.112109984172406,"endHours":21.46794399354947,"quality":"inauspicious"},{"name":"Chala","start":"21:28","end":"22:49","startHours":21.46794399354947,"endHours":22.82377800292653,"quality":"neutral"},{"name":"Labha","start":"22:49","end":"00:11","startHours":22.82377800292653,"endHours":24.179612012303593,"quality":"auspicious"},{"name":"Amṛta","start":"00:11","end":"01:32","startHours":24.179612012303593,"endHours":25.535446021680656,"quality":"auspicious"},{"name":"Kāla","start":"01:32","end":"02:53","startHours":25.535446021680656,"endHours":26.891280031057715,"quality":"inauspicious"},{"name":"Śubha","start":"02:53","end":"04:15","startHours":26.891280031057715,"endHours":28.247114040434777,"quality":"auspicious"},{"name":"Roga","start":"04:15","end":"05:36","startHours":28.247114040434777,"endHours":29.60294804981184,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:36","end":"06:36","startHours":5.60294804981184,"endHours":6.60294804981184,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:36","end":"07:36","startHours":6.60294804981184,"endHours":7.60294804981184,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:36","end":"08:36","startHours":7.60294804981184,"endHours":8.60294804981184,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:36","end":"09:36","startHours":8.60294804981184,"endHours":9.60294804981184,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:36","end":"10:36","startHours":9.60294804981184,"endHours":10.60294804981184,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:36","end":"11:36","startHours":10.60294804981184,"endHours":11.60294804981184,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:36","end":"12:36","startHours":11.60294804981184,"endHours":12.60294804981184,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:36","end":"13:36","startHours":12.60294804981184,"endHours":13.60294804981184,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:36","end":"14:36","startHours":13.60294804981184,"endHours":14.60294804981184,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:36","end":"15:36","startHours":14.60294804981184,"endHours":15.60294804981184,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:36","end":"16:36","startHours":15.60294804981184,"endHours":16.60294804981184,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:36","end":"17:36","startHours":16.60294804981184,"endHours":17.60294804981184,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:36","end":"18:36","startHours":17.60294804981184,"endHours":18.60294804981184,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:36","end":"19:36","startHours":18.60294804981184,"endHours":19.60294804981184,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:36","end":"20:36","startHours":19.60294804981184,"endHours":20.60294804981184,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:36","end":"21:36","startHours":20.60294804981184,"endHours":21.60294804981184,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:36","end":"22:36","startHours":21.60294804981184,"endHours":22.60294804981184,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:36","end":"23:36","startHours":22.60294804981184,"endHours":23.60294804981184,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:36","end":"00:36","startHours":23.60294804981184,"endHours":24.60294804981184,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:36","end":"01:36","startHours":24.60294804981184,"endHours":25.60294804981184,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:36","end":"02:36","startHours":25.60294804981184,"endHours":26.60294804981184,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:36","end":"03:36","startHours":26.60294804981184,"endHours":27.60294804981184,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:36","end":"04:36","startHours":27.60294804981184,"endHours":28.60294804981184,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:36","end":"05:36","startHours":28.60294804981184,"endHours":29.60294804981184,"planetary_lord":"Mars"}],"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","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":14.780141312178682,"eotMinutes":-4.561520738215509,"ayanamsa":24.2387}},"calendars":{"vikram_samvat":2084,"vikram_samvatsara":"Raudra","saka_samvat":1949,"saka_samvatsara":"Plavaṅga","bengali_samvat":1434,"malayalam_era":1203,"nanakshahi_year":558,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Ekādaśī · Vikram 2084 Raudra · Śaka 1949 Plavaṅga"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2},{"id":"pavitropana-ekadashi","name":"Pavitropanā Ekādaśī (Putradā)","name_sanskrit":"पवित्रोपना एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Confers son; pavitra (sacred thread) ceremony for Viṣṇu.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"lucknow"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga August 13, 2027 CE · Lucknow, Uttar Pradesh · Vidhyamitra","description":"August 13, 2027 CE for Lucknow, Uttar Pradesh: Śukla Ekādaśī, sūryodaya 05:36, sūryāsta 18:45.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/lucknow/2027-08-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/lucknow/2027-08-13","sa":"https://sa.vidhyamitra.com/city/lucknow/2027-08-13","hi":"https://hi.vidhyamitra.com/city/lucknow/2027-08-13","x-default":"https://vidhyamitra.com/city/lucknow/2027-08-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T16:32:49.698Z","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":"2026-05-14T16:32:49.698Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T16:32:49.698Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}