{"id":"vidhyamitra:city-day:dwarka:1791-08-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/dwarka/1791-08-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1791-08-13","date_display":"August 13, 1791 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":1791,"month":8,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2375433.770833,"kali_year":4893,"ahargana":1786968.2708,"sun":{"sidereal_longitude":119.083,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":288.5281,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":169.4451,"elapsed_within_tithi_degrees":1.4451},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":288.5281,"elapsed_within_degrees":8.5281},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":47.6112},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"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":1791,"month":8,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2375433.770833,"ahargana":1786968.2708,"kali_year":4893,"ayanamsa_lahiri":20.942,"grahas":{"sun":{"sidereal_longitude":119.19871899999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":286.81351900000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false,"latitude":4.2088},"mars":{"sidereal_longitude":83.91141900000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":137.79071899999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":162.70561900000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"venus":{"sidereal_longitude":167.95211900000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":0.30881900000002815,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":177.8215,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":357.8215,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"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":1791,"month":8,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2375433.770833,"kali_year":4893,"ahargana":1786968.2708,"sun":{"sidereal_longitude":119.083,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":288.5281,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":169.4451,"elapsed_within_tithi_degrees":1.4451},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":288.5281,"elapsed_within_degrees":8.5281},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":47.6112},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.209,"elongation":169.445},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.209,"opposition_distance":10.555}},"eclipse_window_40days":[]},"city":{"slug":"dwarka","name":"Dvārakā","lat":22.2393,"lon":68.9686,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"dwarka","name":"Dvārakā","lat":22.2393,"lon":68.9686,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tirtha"},"sunriseLocal":"06:30","sunsetLocal":"19:27","solarNoonLocal":"12:59","dayLengthHours":12.949997546385527,"dayLengthDisplay":"12 Hours 57 Mins 00 Secs","nightLengthDisplay":"11 Hours 03 Mins 00 Secs","moonriseLocal":"18:38","moonsetLocal":"05:41","rahuKala":{"name":"Rāhu Kāla","start":"09:44","end":"11:22","startHours":9.740619292373875,"endHours":11.359368985672067,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:36","end":"16:13","startHours":14.596868372268448,"endHours":16.215618065566638,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:30","end":"08:07","startHours":6.503119905777494,"endHours":8.121869599075685,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:31","end":"09:57","startHours":9.524785999934117,"endHours":9.956452584813634,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:03","end":"07:23","startHours":7.042703136876891,"endHours":7.388036404780505,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:33","end":"13:25","startHours":12.546452094090741,"endHours":13.409785263849775,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:47","end":"05:38","startHours":4.776453566259423,"endHours":5.639786736018459,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:25","end":"06:30","startHours":5.4239534435787,"endHours":6.503119905777494,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"15:08","end":"16:00","startHours":15.136451603367844,"endHours":15.999784773126878,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:15","end":"19:39","startHours":19.25311745216302,"endHours":19.65311745216302,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:27","end":"20:00","startHours":19.45311745216302,"endHours":19.992700683262417,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:12","end":"20:57","startHours":19.20311745216302,"endHours":20.95311745216302,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:33","end":"01:25","startHours":24.54645209409074,"endHours":25.409785263849777,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:30","end":"08:07","startHours":6.503119905777494,"endHours":8.121869599075685,"quality":"inauspicious"},{"name":"Śubha","start":"08:07","end":"09:44","startHours":8.121869599075685,"endHours":9.740619292373875,"quality":"auspicious"},{"name":"Roga","start":"09:44","end":"11:22","startHours":9.740619292373875,"endHours":11.359368985672067,"quality":"inauspicious"},{"name":"Udveg","start":"11:22","end":"12:59","startHours":11.359368985672067,"endHours":12.978118678970258,"quality":"inauspicious"},{"name":"Chala","start":"12:59","end":"14:36","startHours":12.978118678970258,"endHours":14.596868372268448,"quality":"neutral"},{"name":"Labha","start":"14:36","end":"16:13","startHours":14.596868372268448,"endHours":16.215618065566638,"quality":"auspicious"},{"name":"Amṛta","start":"16:13","end":"17:50","startHours":16.215618065566638,"endHours":17.83436775886483,"quality":"auspicious"},{"name":"Kāla","start":"17:50","end":"19:27","startHours":17.83436775886483,"endHours":19.45311745216302,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:27","end":"20:50","startHours":19.45311745216302,"endHours":20.83436775886483,"quality":"auspicious"},{"name":"Amṛta","start":"20:50","end":"22:13","startHours":20.83436775886483,"endHours":22.215618065566638,"quality":"auspicious"},{"name":"Kāla","start":"22:13","end":"23:36","startHours":22.215618065566638,"endHours":23.596868372268446,"quality":"inauspicious"},{"name":"Śubha","start":"23:36","end":"00:59","startHours":23.596868372268446,"endHours":24.978118678970258,"quality":"auspicious"},{"name":"Roga","start":"00:59","end":"02:22","startHours":24.978118678970258,"endHours":26.359368985672067,"quality":"inauspicious"},{"name":"Udveg","start":"02:22","end":"03:44","startHours":26.359368985672067,"endHours":27.740619292373875,"quality":"inauspicious"},{"name":"Chala","start":"03:44","end":"05:07","startHours":27.740619292373875,"endHours":29.121869599075687,"quality":"neutral"},{"name":"Labha","start":"05:07","end":"06:30","startHours":29.121869599075687,"endHours":30.503119905777496,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:30","end":"07:30","startHours":6.503119905777494,"endHours":7.503119905777494,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:30","end":"08:30","startHours":7.503119905777494,"endHours":8.503119905777494,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:30","end":"09:30","startHours":8.503119905777494,"endHours":9.503119905777494,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:30","end":"10:30","startHours":9.503119905777494,"endHours":10.503119905777494,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:30","end":"11:30","startHours":10.503119905777494,"endHours":11.503119905777494,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:30","end":"12:30","startHours":11.503119905777494,"endHours":12.503119905777494,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:30","end":"13:30","startHours":12.503119905777494,"endHours":13.503119905777494,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:30","end":"14:30","startHours":13.503119905777494,"endHours":14.503119905777494,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:30","end":"15:30","startHours":14.503119905777494,"endHours":15.503119905777494,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:30","end":"16:30","startHours":15.503119905777494,"endHours":16.503119905777496,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:30","end":"17:30","startHours":16.503119905777496,"endHours":17.503119905777496,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:30","end":"18:30","startHours":17.503119905777496,"endHours":18.503119905777496,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:30","end":"19:30","startHours":18.503119905777496,"endHours":19.503119905777496,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:30","end":"20:30","startHours":19.503119905777496,"endHours":20.503119905777496,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:30","end":"21:30","startHours":20.503119905777496,"endHours":21.503119905777496,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:30","end":"22:30","startHours":21.503119905777496,"endHours":22.503119905777496,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:30","end":"23:30","startHours":22.503119905777496,"endHours":23.503119905777496,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:30","end":"00:30","startHours":23.503119905777496,"endHours":24.503119905777496,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:30","end":"01:30","startHours":24.503119905777496,"endHours":25.503119905777496,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:30","end":"02:30","startHours":25.503119905777496,"endHours":26.503119905777496,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:30","end":"03:30","startHours":26.503119905777496,"endHours":27.503119905777496,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:30","end":"04:30","startHours":27.503119905777496,"endHours":28.503119905777496,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:30","end":"05:30","startHours":28.503119905777496,"endHours":29.503119905777496,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:30","end":"06:30","startHours":29.503119905777496,"endHours":30.503119905777496,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":14.768159196252741,"eotMinutes":-4.561520738215509,"ayanamsa":20.942}},"calendars":{"vikram_samvat":1848,"vikram_samvatsara":"Raktākṣī","saka_samvat":1713,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1198,"malayalam_era":967,"nanakshahi_year":322,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Pūrṇimā · Vikram 1848 Raktākṣī · Śaka 1713 Virodhakṛt"},"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":"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":"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":[{"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":"dwarka"},"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, 1791 CE · Dvārakā · Vidhyamitra","description":"August 13, 1791 CE for Dvārakā: Śukla Pūrṇimā, sūryodaya 06:30, sūryāsta 19:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/dwarka/1791-08-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/dwarka/1791-08-13","sa":"https://sa.vidhyamitra.com/city/dwarka/1791-08-13","hi":"https://hi.vidhyamitra.com/city/dwarka/1791-08-13","x-default":"https://vidhyamitra.com/city/dwarka/1791-08-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T04:14:51.129Z","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":"2026-06-01T04:14:51.129Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T04:14:51.129Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}