{"id":"vidhyamitra:city-day:rishikesh:2021-08-22:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2021-08-22","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2021-08-22","date_display":"August 22, 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":8,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459448.770833,"kali_year":5123,"ahargana":1870983.2708,"sun":{"sidereal_longitude":124.3357,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":300.3538,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":176.0181,"elapsed_within_tithi_degrees":8.0181},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3,"moon_longitude":300.3538,"elapsed_within_degrees":7.0205},"yoga":{"number":5,"name":"Śobhana","sum_longitude":64.6895},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":8,"day":22,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459448.770833,"ahargana":1870983.2708,"kali_year":5123,"ayanamsa_lahiri":24.1553,"grahas":{"sun":{"sidereal_longitude":125.03412800000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":299.16472799999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false,"latitude":-4.3264},"mars":{"sidereal_longitude":140.15582799999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":143.071328,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":302.772828,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":162.44682799999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":284.632828,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":46.3025,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":226.3025,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":2021,"month":8,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459448.770833,"kali_year":5123,"ahargana":1870983.2708,"sun":{"sidereal_longitude":124.3357,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":300.3538,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":176.0181,"elapsed_within_tithi_degrees":8.0181},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3,"moon_longitude":300.3538,"elapsed_within_degrees":7.0205},"yoga":{"number":5,"name":"Śobhana","sum_longitude":64.6895},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.326,"elongation":176.018},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.326,"opposition_distance":3.982}},"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":"05:48","sunsetLocal":"18:51","solarNoonLocal":"12:19","dayLengthHours":13.055454284373258,"dayLengthDisplay":"13 Hours 03 Mins 20 Secs","nightLengthDisplay":"10 Hours 56 Mins 40 Secs","moonriseLocal":"18:26","moonsetLocal":"05:26","rahuKala":{"name":"Rāhu Kāla","start":"17:13","end":"18:51","startHours":17.220244294370776,"endHours":18.852176079917434,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:19","end":"13:57","startHours":12.324448937730804,"endHours":13.956380723277462,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:35","end":"17:13","startHours":15.58831250882412,"endHours":17.220244294370776,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:51","end":"09:17","startHours":8.842994461897936,"endHours":9.278176271377044,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:20","end":"06:41","startHours":6.340699057393061,"endHours":6.688844504976347,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:46","startHours":11.889267128251698,"endHours":12.759630747209913,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:03","end":"04:56","startHours":4.0559945576277405,"endHours":4.926358176585958,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:43","end":"05:48","startHours":4.708767271846404,"endHours":5.796721795544175,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:30","end":"15:22","startHours":14.500357985126346,"endHours":15.370721604084563,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:39","end":"19:03","startHours":18.652176079917435,"endHours":19.052176079917434,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:51","end":"19:24","startHours":18.852176079917434,"endHours":19.396153341766322,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:36","end":"20:21","startHours":18.602176079917434,"endHours":20.352176079917434,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:46","startHours":23.8892671282517,"endHours":24.759630747209915,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:48","end":"07:26","startHours":5.796721795544175,"endHours":7.428653581090833,"quality":"inauspicious"},{"name":"Chala","start":"07:26","end":"09:04","startHours":7.428653581090833,"endHours":9.06058536663749,"quality":"neutral"},{"name":"Labha","start":"09:04","end":"10:42","startHours":9.06058536663749,"endHours":10.692517152184148,"quality":"auspicious"},{"name":"Amṛta","start":"10:42","end":"12:19","startHours":10.692517152184148,"endHours":12.324448937730804,"quality":"auspicious"},{"name":"Kāla","start":"12:19","end":"13:57","startHours":12.324448937730804,"endHours":13.956380723277462,"quality":"inauspicious"},{"name":"Śubha","start":"13:57","end":"15:35","startHours":13.956380723277462,"endHours":15.58831250882412,"quality":"auspicious"},{"name":"Roga","start":"15:35","end":"17:13","startHours":15.58831250882412,"endHours":17.220244294370776,"quality":"inauspicious"},{"name":"Udveg","start":"17:13","end":"18:51","startHours":17.220244294370776,"endHours":18.852176079917434,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:51","end":"20:13","startHours":18.852176079917434,"endHours":20.220244294370776,"quality":"auspicious"},{"name":"Roga","start":"20:13","end":"21:35","startHours":20.220244294370776,"endHours":21.58831250882412,"quality":"inauspicious"},{"name":"Udveg","start":"21:35","end":"22:57","startHours":21.58831250882412,"endHours":22.956380723277462,"quality":"inauspicious"},{"name":"Chala","start":"22:57","end":"00:19","startHours":22.956380723277462,"endHours":24.324448937730807,"quality":"neutral"},{"name":"Labha","start":"00:19","end":"01:42","startHours":24.324448937730807,"endHours":25.69251715218415,"quality":"auspicious"},{"name":"Amṛta","start":"01:42","end":"03:04","startHours":25.69251715218415,"endHours":27.06058536663749,"quality":"auspicious"},{"name":"Kāla","start":"03:04","end":"04:26","startHours":27.06058536663749,"endHours":28.428653581090835,"quality":"inauspicious"},{"name":"Śubha","start":"04:26","end":"05:48","startHours":28.428653581090835,"endHours":29.796721795544176,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:48","end":"06:48","startHours":5.796721795544175,"endHours":6.796721795544175,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:48","end":"07:48","startHours":6.796721795544175,"endHours":7.796721795544175,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:48","end":"08:48","startHours":7.796721795544175,"endHours":8.796721795544176,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:48","end":"09:48","startHours":8.796721795544176,"endHours":9.796721795544176,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:48","end":"10:48","startHours":9.796721795544176,"endHours":10.796721795544176,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:48","end":"11:48","startHours":10.796721795544176,"endHours":11.796721795544176,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:48","end":"12:48","startHours":11.796721795544176,"endHours":12.796721795544176,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:48","end":"13:48","startHours":12.796721795544176,"endHours":13.796721795544176,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:48","end":"14:48","startHours":13.796721795544176,"endHours":14.796721795544176,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:48","end":"15:48","startHours":14.796721795544176,"endHours":15.796721795544176,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:48","end":"16:48","startHours":15.796721795544176,"endHours":16.796721795544176,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:48","end":"17:48","startHours":16.796721795544176,"endHours":17.796721795544176,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:48","end":"18:48","startHours":17.796721795544176,"endHours":18.796721795544176,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:48","end":"19:48","startHours":18.796721795544176,"endHours":19.796721795544176,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:48","end":"20:48","startHours":19.796721795544176,"endHours":20.796721795544176,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:48","end":"21:48","startHours":20.796721795544176,"endHours":21.796721795544176,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:48","end":"22:48","startHours":21.796721795544176,"endHours":22.796721795544176,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:48","end":"23:48","startHours":22.796721795544176,"endHours":23.796721795544176,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:48","end":"00:48","startHours":23.796721795544176,"endHours":24.796721795544176,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:48","end":"01:48","startHours":24.796721795544176,"endHours":25.796721795544176,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:48","end":"02:48","startHours":25.796721795544176,"endHours":26.796721795544176,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:48","end":"03:48","startHours":26.796721795544176,"endHours":27.796721795544176,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:48","end":"04:48","startHours":27.796721795544176,"endHours":28.796721795544176,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:48","end":"05:48","startHours":28.796721795544176,"endHours":29.796721795544176,"planetary_lord":"Jupiter"}],"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":"North-East","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"drikRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":11.754526818739597,"eotMinutes":-2.537336263848294,"ayanamsa":24.1553}},"calendars":{"vikram_samvat":2078,"vikram_samvatsara":"Ānanda","saka_samvat":1943,"saka_samvatsara":"Plava","bengali_samvat":1428,"malayalam_era":1197,"nanakshahi_year":552,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Pūrṇimā · Vikram 2078 Ānanda · Śaka 1943 Plava"},"festivals":[{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 22, 2021 CE · Ṛṣikeśa · Vidhyamitra","description":"August 22, 2021 CE for Ṛṣikeśa: Śukla Pūrṇimā, sūryodaya 05:48, sūryāsta 18:51.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2021-08-22","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2021-08-22","sa":"https://sa.vidhyamitra.com/city/rishikesh/2021-08-22","hi":"https://hi.vidhyamitra.com/city/rishikesh/2021-08-22","x-default":"https://vidhyamitra.com/city/rishikesh/2021-08-22"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T03:18:59.715Z","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":"2026-05-15T03:18:59.715Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T03:18:59.715Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}