{"id":"vidhyamitra:city-day:rishikesh:2181-08-24:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2181-08-24","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2181-08-24","date_display":"August 24, 2181 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":2181,"month":8,"day":24,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517889.770833,"kali_year":5283,"ahargana":1929424.2708,"sun":{"sidereal_longitude":123.9512,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":297.8892,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":173.938,"elapsed_within_tithi_degrees":5.938},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":297.8892,"elapsed_within_degrees":4.5559},"yoga":{"number":5,"name":"Śobhana","sum_longitude":61.8404},"karana":{"half_tithi_index":28,"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":2181,"month":8,"day":24,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517889.770833,"ahargana":1929424.2708,"kali_year":5283,"ayanamsa_lahiri":26.3904,"grahas":{"sun":{"sidereal_longitude":125.03705200000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":297.37515200000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false,"latitude":4.2776},"mars":{"sidereal_longitude":151.35045200000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":141.574952,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":124.157352,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":167.72515199999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":90.94865199999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":189.8171,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":9.8171,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":2181,"month":8,"day":24,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517889.770833,"kali_year":5283,"ahargana":1929424.2708,"sun":{"sidereal_longitude":123.9512,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":297.8892,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":173.938,"elapsed_within_tithi_degrees":5.938},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":297.8892,"elapsed_within_degrees":4.5559},"yoga":{"number":5,"name":"Śobhana","sum_longitude":61.8404},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.278,"elongation":173.938},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.278,"opposition_distance":6.062}},"eclipse_window_40days":[]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"05:49","sunsetLocal":"18:49","solarNoonLocal":"12:19","dayLengthHours":12.991130537340002,"dayLengthDisplay":"12 Hours 59 Mins 28 Secs","nightLengthDisplay":"11 Hours 00 Mins 32 Secs","moonriseLocal":"18:18","moonsetLocal":"05:19","rahuKala":{"name":"Rāhu Kāla","start":"10:41","end":"12:19","startHours":10.69146606453437,"endHours":12.31535738170187,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:34","end":"17:11","startHours":15.563140016036872,"endHours":17.187031333204374,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:27","end":"09:04","startHours":7.4436834301993695,"endHours":9.06757474736687,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:51","end":"09:17","startHours":8.851055905077871,"endHours":9.284093589655871,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:22","end":"06:42","startHours":6.36108921875437,"endHours":6.70751936641677,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:45","startHours":11.88231969712387,"endHours":12.74839506627987,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:05","end":"04:57","startHours":4.087641374719869,"endHours":4.953716743875869,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:44","end":"05:49","startHours":4.737197901586869,"endHours":5.81979211303187,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:29","end":"15:21","startHours":14.480545804591872,"endHours":15.346621173747872,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:37","end":"19:01","startHours":18.610922650371872,"endHours":19.01092265037187,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:49","end":"19:21","startHours":18.81092265037187,"endHours":19.35221975609437,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:34","end":"20:19","startHours":18.56092265037187,"endHours":20.31092265037187,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:45","startHours":23.882319697123872,"endHours":24.748395066279873,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:49","end":"07:27","startHours":5.81979211303187,"endHours":7.4436834301993695,"quality":"neutral"},{"name":"Labha","start":"07:27","end":"09:04","startHours":7.4436834301993695,"endHours":9.06757474736687,"quality":"auspicious"},{"name":"Amṛta","start":"09:04","end":"10:41","startHours":9.06757474736687,"endHours":10.69146606453437,"quality":"auspicious"},{"name":"Kāla","start":"10:41","end":"12:19","startHours":10.69146606453437,"endHours":12.31535738170187,"quality":"inauspicious"},{"name":"Śubha","start":"12:19","end":"13:56","startHours":12.31535738170187,"endHours":13.93924869886937,"quality":"auspicious"},{"name":"Roga","start":"13:56","end":"15:34","startHours":13.93924869886937,"endHours":15.563140016036872,"quality":"inauspicious"},{"name":"Udveg","start":"15:34","end":"17:11","startHours":15.563140016036872,"endHours":17.187031333204374,"quality":"inauspicious"},{"name":"Chala","start":"17:11","end":"18:49","startHours":17.187031333204374,"endHours":18.81092265037187,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:49","end":"20:11","startHours":18.81092265037187,"endHours":20.18703133320437,"quality":"inauspicious"},{"name":"Udveg","start":"20:11","end":"21:34","startHours":20.18703133320437,"endHours":21.563140016036872,"quality":"inauspicious"},{"name":"Chala","start":"21:34","end":"22:56","startHours":21.563140016036872,"endHours":22.93924869886937,"quality":"neutral"},{"name":"Labha","start":"22:56","end":"00:19","startHours":22.93924869886937,"endHours":24.315357381701872,"quality":"auspicious"},{"name":"Amṛta","start":"00:19","end":"01:41","startHours":24.315357381701872,"endHours":25.69146606453437,"quality":"auspicious"},{"name":"Kāla","start":"01:41","end":"03:04","startHours":25.69146606453437,"endHours":27.06757474736687,"quality":"inauspicious"},{"name":"Śubha","start":"03:04","end":"04:27","startHours":27.06757474736687,"endHours":28.44368343019937,"quality":"auspicious"},{"name":"Roga","start":"04:27","end":"05:49","startHours":28.44368343019937,"endHours":29.81979211303187,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:49","end":"06:49","startHours":5.81979211303187,"endHours":6.81979211303187,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:49","end":"07:49","startHours":6.81979211303187,"endHours":7.81979211303187,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:49","end":"08:49","startHours":7.81979211303187,"endHours":8.81979211303187,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:49","end":"09:49","startHours":8.81979211303187,"endHours":9.81979211303187,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:49","end":"10:49","startHours":9.81979211303187,"endHours":10.81979211303187,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:49","end":"11:49","startHours":10.81979211303187,"endHours":11.81979211303187,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:49","end":"12:49","startHours":11.81979211303187,"endHours":12.81979211303187,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:49","end":"13:49","startHours":12.81979211303187,"endHours":13.81979211303187,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:49","end":"14:49","startHours":13.81979211303187,"endHours":14.81979211303187,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:49","end":"15:49","startHours":14.81979211303187,"endHours":15.81979211303187,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:49","end":"16:49","startHours":15.81979211303187,"endHours":16.81979211303187,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:49","end":"17:49","startHours":16.81979211303187,"endHours":17.81979211303187,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:49","end":"18:49","startHours":17.81979211303187,"endHours":18.81979211303187,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:49","end":"19:49","startHours":18.81979211303187,"endHours":19.81979211303187,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:49","end":"20:49","startHours":19.81979211303187,"endHours":20.81979211303187,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:49","end":"21:49","startHours":20.81979211303187,"endHours":21.81979211303187,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:49","end":"22:49","startHours":21.81979211303187,"endHours":22.81979211303187,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:49","end":"23:49","startHours":22.81979211303187,"endHours":23.81979211303187,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:49","end":"00:49","startHours":23.81979211303187,"endHours":24.81979211303187,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:49","end":"01:49","startHours":24.81979211303187,"endHours":25.81979211303187,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:49","end":"02:49","startHours":25.81979211303187,"endHours":26.81979211303187,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:49","end":"03:49","startHours":26.81979211303187,"endHours":27.81979211303187,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:49","end":"04:49","startHours":27.81979211303187,"endHours":28.81979211303187,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:49","end":"05:49","startHours":28.81979211303187,"endHours":29.81979211303187,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":10.965854323714586,"eotMinutes":-1.9918429021122266,"ayanamsa":26.3904}},"calendars":{"vikram_samvat":2238,"vikram_samvatsara":"Jaya","saka_samvat":2103,"saka_samvatsara":"Vṛṣa","bengali_samvat":1588,"malayalam_era":1357,"nanakshahi_year":712,"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":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Pūrṇimā · Vikram 2238 Jaya · Śaka 2103 Vṛṣa"},"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":"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":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga August 24, 2181 CE · Ṛṣikeśa · Vidhyamitra","description":"August 24, 2181 CE for Ṛṣikeśa: Śukla Pūrṇimā, sūryodaya 05:49, sūryāsta 18:49.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2181-08-24","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2181-08-24","sa":"https://sa.vidhyamitra.com/city/rishikesh/2181-08-24","hi":"https://hi.vidhyamitra.com/city/rishikesh/2181-08-24","x-default":"https://vidhyamitra.com/city/rishikesh/2181-08-24"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-29T17:53:19.418Z","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":"2026-05-29T17:53:19.418Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-29T17:53:19.418Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}