{"id":"vidhyamitra:city-day:rishikesh:2021-07-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2021-07-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2021-07-17","date_display":"July 17, 2021 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":2021,"month":7,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459412.770833,"kali_year":5123,"ahargana":1870947.2708,"sun":{"sidereal_longitude":90.0611,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":177.158,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":87.0969,"elapsed_within_tithi_degrees":3.0969},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":177.158,"elapsed_within_degrees":3.8247},"yoga":{"number":21,"name":"Siddha","sum_longitude":267.2192},"karana":{"half_tithi_index":14,"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":2021,"month":7,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459412.770833,"ahargana":1870947.2708,"kali_year":5123,"ayanamsa_lahiri":24.1539,"grahas":{"sun":{"sidereal_longitude":90.55510400000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"moon":{"sidereal_longitude":175.64240399999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false,"latitude":3.4983},"mars":{"sidereal_longitude":117.51280399999996,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":73.71890400000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":306.90090399999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":119.554104,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":287.233304,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":48.21,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":228.21,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","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":2021,"month":7,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459412.770833,"kali_year":5123,"ahargana":1870947.2708,"sun":{"sidereal_longitude":90.0611,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":177.158,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":87.0969,"elapsed_within_tithi_degrees":3.0969},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":177.158,"elapsed_within_degrees":3.8247},"yoga":{"number":21,"name":"Siddha","sum_longitude":267.2192},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.498,"elongation":87.097},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.498,"opposition_distance":92.903}},"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":"05:27","sunsetLocal":"19:19","solarNoonLocal":"12:23","dayLengthHours":13.871406541637686,"dayLengthDisplay":"13 Hours 52 Mins 17 Secs","nightLengthDisplay":"10 Hours 07 Mins 43 Secs","moonriseLocal":"12:18","moonsetLocal":"23:48","rahuKala":{"name":"Rāhu Kāla","start":"08:55","end":"10:39","startHours":8.910534746245558,"endHours":10.644460563950268,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:07","end":"15:51","startHours":14.112312199359689,"endHours":15.846238017064401,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:27","end":"07:11","startHours":5.442683110836136,"endHours":7.176608928540848,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:41","end":"09:09","startHours":8.679344637218264,"endHours":9.141724855272853,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:01","end":"06:23","startHours":6.020658383404373,"endHours":6.390562557848045,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:50","startHours":11.91600616360039,"endHours":12.840766599709568,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:36","end":"04:31","startHours":3.5931622386177784,"endHours":4.517922674726957,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:17","end":"05:27","startHours":4.286732565699662,"endHours":5.442683110836136,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:41","end":"15:37","startHours":14.690287471927927,"endHours":15.615047908037107,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:07","end":"19:31","startHours":19.114089652473822,"endHours":19.51408965247382,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:19","end":"19:54","startHours":19.31408965247382,"endHours":19.89206492504206,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:04","end":"20:49","startHours":19.06408965247382,"endHours":20.81408965247382,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:50","startHours":23.916006163600386,"endHours":24.840766599709568,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:27","end":"07:11","startHours":5.442683110836136,"endHours":7.176608928540848,"quality":"inauspicious"},{"name":"Śubha","start":"07:11","end":"08:55","startHours":7.176608928540848,"endHours":8.910534746245558,"quality":"auspicious"},{"name":"Roga","start":"08:55","end":"10:39","startHours":8.910534746245558,"endHours":10.644460563950268,"quality":"inauspicious"},{"name":"Udveg","start":"10:39","end":"12:23","startHours":10.644460563950268,"endHours":12.37838638165498,"quality":"inauspicious"},{"name":"Chala","start":"12:23","end":"14:07","startHours":12.37838638165498,"endHours":14.112312199359689,"quality":"neutral"},{"name":"Labha","start":"14:07","end":"15:51","startHours":14.112312199359689,"endHours":15.846238017064401,"quality":"auspicious"},{"name":"Amṛta","start":"15:51","end":"17:35","startHours":15.846238017064401,"endHours":17.580163834769113,"quality":"auspicious"},{"name":"Kāla","start":"17:35","end":"19:19","startHours":17.580163834769113,"endHours":19.31408965247382,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:19","end":"20:35","startHours":19.31408965247382,"endHours":20.58016383476911,"quality":"auspicious"},{"name":"Amṛta","start":"20:35","end":"21:51","startHours":20.58016383476911,"endHours":21.8462380170644,"quality":"auspicious"},{"name":"Kāla","start":"21:51","end":"23:07","startHours":21.8462380170644,"endHours":23.11231219935969,"quality":"inauspicious"},{"name":"Śubha","start":"23:07","end":"00:23","startHours":23.11231219935969,"endHours":24.378386381654977,"quality":"auspicious"},{"name":"Roga","start":"00:23","end":"01:39","startHours":24.378386381654977,"endHours":25.64446056395027,"quality":"inauspicious"},{"name":"Udveg","start":"01:39","end":"02:55","startHours":25.64446056395027,"endHours":26.910534746245556,"quality":"inauspicious"},{"name":"Chala","start":"02:55","end":"04:11","startHours":26.910534746245556,"endHours":28.176608928540844,"quality":"neutral"},{"name":"Labha","start":"04:11","end":"05:27","startHours":28.176608928540844,"endHours":29.442683110836136,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:27","end":"06:27","startHours":5.442683110836136,"endHours":6.442683110836136,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:27","end":"07:27","startHours":6.442683110836136,"endHours":7.442683110836136,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:27","end":"08:27","startHours":7.442683110836136,"endHours":8.442683110836136,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:27","end":"09:27","startHours":8.442683110836136,"endHours":9.442683110836136,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:27","end":"10:27","startHours":9.442683110836136,"endHours":10.442683110836136,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:27","end":"11:27","startHours":10.442683110836136,"endHours":11.442683110836136,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:27","end":"12:27","startHours":11.442683110836136,"endHours":12.442683110836136,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:27","end":"13:27","startHours":12.442683110836136,"endHours":13.442683110836136,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:27","end":"14:27","startHours":13.442683110836136,"endHours":14.442683110836136,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:27","end":"15:27","startHours":14.442683110836136,"endHours":15.442683110836136,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:27","end":"16:27","startHours":15.442683110836136,"endHours":16.442683110836136,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:27","end":"17:27","startHours":16.442683110836136,"endHours":17.442683110836136,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:27","end":"18:27","startHours":17.442683110836136,"endHours":18.442683110836136,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:27","end":"19:27","startHours":18.442683110836136,"endHours":19.442683110836136,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:27","end":"20:27","startHours":19.442683110836136,"endHours":20.442683110836136,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:27","end":"21:27","startHours":20.442683110836136,"endHours":21.442683110836136,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:27","end":"22:27","startHours":21.442683110836136,"endHours":22.442683110836136,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:27","end":"23:27","startHours":22.442683110836136,"endHours":23.442683110836136,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:27","end":"00:27","startHours":23.442683110836136,"endHours":24.442683110836136,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:27","end":"01:27","startHours":24.442683110836136,"endHours":25.442683110836136,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:27","end":"02:27","startHours":25.442683110836136,"endHours":26.442683110836136,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:27","end":"03:27","startHours":26.442683110836136,"endHours":27.442683110836136,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:27","end":"04:27","startHours":27.442683110836136,"endHours":28.442683110836136,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:27","end":"05:27","startHours":28.442683110836136,"endHours":29.442683110836136,"planetary_lord":"Mercury"}],"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","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"drikRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":21.1811039020978,"eotMinutes":-5.773582899298716,"ayanamsa":24.1539}},"calendars":{"vikram_samvat":2078,"vikram_samvatsara":"Ānanda","saka_samvat":1943,"saka_samvatsara":"Plava","bengali_samvat":1428,"malayalam_era":1197,"nanakshahi_year":552,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Aṣṭamī · Vikram 2078 Ānanda · Śaka 1943 Plava"},"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}],"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":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","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 July 17, 2021 CE · Ṛṣikeśa · Vidhyamitra","description":"July 17, 2021 CE for Ṛṣikeśa: Śukla Aṣṭamī, sūryodaya 05:27, sūryāsta 19:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2021-07-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2021-07-17","sa":"https://sa.vidhyamitra.com/city/rishikesh/2021-07-17","hi":"https://hi.vidhyamitra.com/city/rishikesh/2021-07-17","x-default":"https://vidhyamitra.com/city/rishikesh/2021-07-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T07:46:31.699Z","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":"2026-05-15T07:46:31.699Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T07:46:31.699Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}