{"id":"vidhyamitra:city-day:berlin:1981-07-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/berlin/1981-07-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-07-17","date_display":"July 17, 1981 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":1981,"month":7,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444802.770833,"kali_year":5083,"ahargana":1856337.2708,"sun":{"sidereal_longitude":90.393,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":268.2653,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":177.8723,"elapsed_within_tithi_degrees":9.8723},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":268.2653,"elapsed_within_degrees":1.5986},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":358.6583},"karana":{"half_tithi_index":29,"name":"Bava"},"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":1981,"month":7,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444802.770833,"ahargana":1856337.2708,"kali_year":5083,"ayanamsa_lahiri":23.5951,"grahas":{"sun":{"sidereal_longitude":90.79241300000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"moon":{"sidereal_longitude":268.893513,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false,"latitude":1.0916},"mars":{"sidereal_longitude":65.74991299999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":70.512113,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":160.61731299999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"venus":{"sidereal_longitude":117.56501300000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":160.555113,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":102.3181,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":282.3181,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1981,"month":7,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444802.770833,"kali_year":5083,"ahargana":1856337.2708,"sun":{"sidereal_longitude":90.393,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":268.2653,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":177.8723,"elapsed_within_tithi_degrees":9.8723},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":268.2653,"elapsed_within_degrees":1.5986},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":358.6583},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.092,"elongation":177.872},"lunar":{"type":"lunar","occurs":true,"moon_latitude":1.092,"opposition_distance":2.128}},"eclipse_window_40days":[{"offset_days":0,"type":"lunar","occurs":true,"moon_latitude":1.092,"opposition_distance":2.128},{"offset_days":14,"type":"solar","occurs":true,"moon_latitude":0.181,"elongation":0.207}]},"city":{"slug":"berlin","name":"Berlin, Germany","lat":52.52,"lon":13.405,"tz_offset_hours":1,"country":"DE","tier":"diaspora"},"tier2":{"city":{"slug":"berlin","name":"Berlin, Germany","lat":52.52,"lon":13.405,"tz_offset_hours":1,"country":"DE","tier":"diaspora"},"sunriseLocal":"04:03","sunsetLocal":"20:21","solarNoonLocal":"12:12","dayLengthHours":16.28979381293035,"dayLengthDisplay":"16 Hours 17 Mins 23 Secs","nightLengthDisplay":"7 Hours 42 Mins 37 Secs","moonriseLocal":"20:04","moonsetLocal":"04:05","rahuKala":{"name":"Rāhu Kāla","start":"10:10","end":"12:12","startHours":10.16633548837202,"endHours":12.202559714988313,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"16:17","end":"18:19","startHours":16.2750081682209,"endHours":18.31123239483719,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:06","end":"08:08","startHours":6.093887035139432,"endHours":8.130111261755726,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"07:52","end":"08:24","startHours":7.858614698206887,"endHours":8.401607825304566,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"04:44","end":"05:10","startHours":4.736404217395236,"endHours":5.170798719073379,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:45","startHours":11.659566587890634,"endHours":12.745552842085992,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"01:53","end":"02:58","startHours":1.8856903001324254,"endHours":2.9716765543277823,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"02:42","end":"04:03","startHours":2.7001799907789428,"endHours":4.057662808523139,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:55","end":"16:00","startHours":14.917525350476705,"endHours":16.003511604672063,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"20:09","end":"20:33","startHours":20.14745662145349,"endHours":20.547456621453488,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"20:21","end":"21:02","startHours":20.34745662145349,"endHours":21.026198030325588,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"20:06","end":"21:51","startHours":20.09745662145349,"endHours":21.84745662145349,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:45","startHours":23.659566587890634,"endHours":24.74555284208599,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"04:03","end":"06:06","startHours":4.057662808523139,"endHours":6.093887035139432,"quality":"neutral"},{"name":"Labha","start":"06:06","end":"08:08","startHours":6.093887035139432,"endHours":8.130111261755726,"quality":"auspicious"},{"name":"Amṛta","start":"08:08","end":"10:10","startHours":8.130111261755726,"endHours":10.16633548837202,"quality":"auspicious"},{"name":"Kāla","start":"10:10","end":"12:12","startHours":10.16633548837202,"endHours":12.202559714988313,"quality":"inauspicious"},{"name":"Śubha","start":"12:12","end":"14:14","startHours":12.202559714988313,"endHours":14.238783941604607,"quality":"auspicious"},{"name":"Roga","start":"14:14","end":"16:17","startHours":14.238783941604607,"endHours":16.2750081682209,"quality":"inauspicious"},{"name":"Udveg","start":"16:17","end":"18:19","startHours":16.2750081682209,"endHours":18.31123239483719,"quality":"inauspicious"},{"name":"Chala","start":"18:19","end":"20:21","startHours":18.31123239483719,"endHours":20.34745662145349,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"20:21","end":"21:19","startHours":20.34745662145349,"endHours":21.311232394837194,"quality":"inauspicious"},{"name":"Udveg","start":"21:19","end":"22:17","startHours":21.311232394837194,"endHours":22.2750081682209,"quality":"inauspicious"},{"name":"Chala","start":"22:17","end":"23:14","startHours":22.2750081682209,"endHours":23.23878394160461,"quality":"neutral"},{"name":"Labha","start":"23:14","end":"00:12","startHours":23.23878394160461,"endHours":24.202559714988315,"quality":"auspicious"},{"name":"Amṛta","start":"00:12","end":"01:10","startHours":24.202559714988315,"endHours":25.16633548837202,"quality":"auspicious"},{"name":"Kāla","start":"01:10","end":"02:08","startHours":25.16633548837202,"endHours":26.13011126175573,"quality":"inauspicious"},{"name":"Śubha","start":"02:08","end":"03:06","startHours":26.13011126175573,"endHours":27.093887035139435,"quality":"auspicious"},{"name":"Roga","start":"03:06","end":"04:03","startHours":27.093887035139435,"endHours":28.05766280852314,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"04:03","end":"05:03","startHours":4.057662808523139,"endHours":5.057662808523139,"planetary_lord":"Venus"},{"name":"Hora 2","start":"05:03","end":"06:03","startHours":5.057662808523139,"endHours":6.057662808523139,"planetary_lord":"Sun"},{"name":"Hora 3","start":"06:03","end":"07:03","startHours":6.057662808523139,"endHours":7.057662808523139,"planetary_lord":"Mars"},{"name":"Hora 4","start":"07:03","end":"08:03","startHours":7.057662808523139,"endHours":8.057662808523139,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"08:03","end":"09:03","startHours":8.057662808523139,"endHours":9.057662808523139,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"09:03","end":"10:03","startHours":9.057662808523139,"endHours":10.057662808523139,"planetary_lord":"Moon"},{"name":"Hora 7","start":"10:03","end":"11:03","startHours":10.057662808523139,"endHours":11.057662808523139,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"11:03","end":"12:03","startHours":11.057662808523139,"endHours":12.057662808523139,"planetary_lord":"Venus"},{"name":"Hora 9","start":"12:03","end":"13:03","startHours":12.057662808523139,"endHours":13.057662808523139,"planetary_lord":"Sun"},{"name":"Hora 10","start":"13:03","end":"14:03","startHours":13.057662808523139,"endHours":14.057662808523139,"planetary_lord":"Mars"},{"name":"Hora 11","start":"14:03","end":"15:03","startHours":14.057662808523139,"endHours":15.057662808523139,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"15:03","end":"16:03","startHours":15.057662808523139,"endHours":16.05766280852314,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"16:03","end":"17:03","startHours":16.05766280852314,"endHours":17.05766280852314,"planetary_lord":"Moon"},{"name":"Hora 14","start":"17:03","end":"18:03","startHours":17.05766280852314,"endHours":18.05766280852314,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"18:03","end":"19:03","startHours":18.05766280852314,"endHours":19.05766280852314,"planetary_lord":"Venus"},{"name":"Hora 16","start":"19:03","end":"20:03","startHours":19.05766280852314,"endHours":20.05766280852314,"planetary_lord":"Sun"},{"name":"Hora 17","start":"20:03","end":"21:03","startHours":20.05766280852314,"endHours":21.05766280852314,"planetary_lord":"Mars"},{"name":"Hora 18","start":"21:03","end":"22:03","startHours":21.05766280852314,"endHours":22.05766280852314,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"22:03","end":"23:03","startHours":22.05766280852314,"endHours":23.05766280852314,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"23:03","end":"00:03","startHours":23.05766280852314,"endHours":24.05766280852314,"planetary_lord":"Moon"},{"name":"Hora 21","start":"00:03","end":"01:03","startHours":24.05766280852314,"endHours":25.05766280852314,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"01:03","end":"02:03","startHours":25.05766280852314,"endHours":26.05766280852314,"planetary_lord":"Venus"},{"name":"Hora 23","start":"02:03","end":"03:03","startHours":26.05766280852314,"endHours":27.05766280852314,"planetary_lord":"Sun"},{"name":"Hora 24","start":"03:03","end":"04:03","startHours":27.05766280852314,"endHours":28.05766280852314,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","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":"Mānasa","quality":"Auspicious"},"drikRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":21.238087448755877,"eotMinutes":-5.773582899298716,"ayanamsa":23.5951}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Pūrṇimā · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"raksha-bandhana","name":"Rakṣā Bandhana / Śrāvaṇa Pūrṇimā","name_sanskrit":"रक्षा बन्धन","tradition":"Pan-Hindu","significance":"Sister-brother bond; Brāhmaṇa Upākarma.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":1},{"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":"jhulan-purnima","name":"Jhūlan Pūrṇimā (Rādhā-Krishna swing)","name_sanskrit":"झूलन पूर्णिमा","tradition":"Vaishnava","associated_deity":"Rādhā-Krishna","significance":"Rādhā-Krishna swing-līlā festival; Jhūlan-yātrā culmination.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":3},{"id":"upakarman-rigveda","name":"Ṛg-Veda Upākarman","name_sanskrit":"ऋग्वेद उपाकर्मन्","tradition":"Smarta","associated_deity":"Ṛṣi-paramparā","significance":"Annual renewal of Veda-svādhyāya for Ṛg-Vedīs. Śrāvaṇa Pūrṇimā.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":3},{"id":"upakarman-yajurveda","name":"Yajur-Veda Upākarman","name_sanskrit":"यजुर्वेद उपाकर्मन्","tradition":"Smarta","significance":"Annual renewal of Veda-svādhyāya for Yajur-Vedīs.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":3},{"id":"hayagriva-jayanti","name":"Hayagrīva Jayantī","name_sanskrit":"हयग्रीव जयन्ती","tradition":"Vaishnava","associated_deity":"Hayagrīva (Knowledge-form of Bhagavān)","significance":"Bhagavān as Hayagrīva restored the Vedas to Brahmā. Vidyā-pradāyaka.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":4,"sources":["Devī-Bhāgavata, Hayagrīva-stotra"]}],"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":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"berlin"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga July 17, 1981 CE · Berlin, Germany · Vidhyamitra","description":"July 17, 1981 CE for Berlin, Germany: Śukla Pūrṇimā, sūryodaya 04:03, sūryāsta 20:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/berlin/1981-07-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/berlin/1981-07-17","sa":"https://sa.vidhyamitra.com/city/berlin/1981-07-17","hi":"https://hi.vidhyamitra.com/city/berlin/1981-07-17","x-default":"https://vidhyamitra.com/city/berlin/1981-07-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-19T09:48:51.858Z","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":"2026-05-19T09:48:51.858Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-19T09:48:51.858Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}