{"id":"vidhyamitra:city-day:rishikesh:1963-08-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1963-08-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1963-08-21","date_display":"August 21, 1963 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":1963,"month":8,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438262.770833,"kali_year":5065,"ahargana":1849797.2708,"sun":{"sidereal_longitude":123.3847,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":146.2914,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":22.9067,"elapsed_within_tithi_degrees":10.9067},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":146.2914,"elapsed_within_degrees":12.9581},"yoga":{"number":21,"name":"Siddha","sum_longitude":269.6762},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1963,"month":8,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438262.770833,"ahargana":1849797.2708,"kali_year":5065,"ayanamsa_lahiri":23.345,"grahas":{"sun":{"sidereal_longitude":123.93768899999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":144.40468899999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false,"latitude":3.7921},"mars":{"sidereal_longitude":172.624189,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":151.559389,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":356.597889,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":true},"venus":{"sidereal_longitude":122.00248899999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":296.546289,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":88.8387,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":268.8387,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":1963,"month":8,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438262.770833,"kali_year":5065,"ahargana":1849797.2708,"sun":{"sidereal_longitude":123.3847,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":146.2914,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":22.9067,"elapsed_within_tithi_degrees":10.9067},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":146.2914,"elapsed_within_degrees":12.9581},"yoga":{"number":21,"name":"Siddha","sum_longitude":269.6762},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.792,"elongation":22.907},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.792,"opposition_distance":157.093}},"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":"05:46","sunsetLocal":"18:53","solarNoonLocal":"12:20","dayLengthHours":13.109592174694683,"dayLengthDisplay":"13 Hours 06 Mins 35 Secs","nightLengthDisplay":"10 Hours 53 Mins 25 Secs","moonriseLocal":"07:28","moonsetLocal":"19:56","rahuKala":{"name":"Rāhu Kāla","start":"12:20","end":"13:58","startHours":12.32879155526658,"endHours":13.967490577103415,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:25","end":"09:03","startHours":7.412694489756075,"endHours":9.05139351159291,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:41","end":"12:20","startHours":10.690092533429745,"endHours":12.32879155526658,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:16","startHours":8.832900308681332,"endHours":9.269886714504489,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:19","end":"06:40","startHours":6.320228475198185,"endHours":6.66981759985671,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:46","startHours":11.891805149443424,"endHours":12.765777961089736,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:02","end":"04:54","startHours":4.026049844626615,"endHours":4.900022656272927,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:41","end":"05:46","startHours":4.68152945336135,"endHours":5.77399546791924,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:23","startHours":14.513723584382362,"endHours":15.387696396028675,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:41","end":"19:05","startHours":18.683587642613922,"endHours":19.08358764261392,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:53","end":"19:26","startHours":18.88358764261392,"endHours":19.429820649892868,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:38","end":"20:23","startHours":18.63358764261392,"endHours":20.38358764261392,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:46","startHours":23.891805149443424,"endHours":24.765777961089736,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:46","end":"07:25","startHours":5.77399546791924,"endHours":7.412694489756075,"quality":"auspicious"},{"name":"Amṛta","start":"07:25","end":"09:03","startHours":7.412694489756075,"endHours":9.05139351159291,"quality":"auspicious"},{"name":"Kāla","start":"09:03","end":"10:41","startHours":9.05139351159291,"endHours":10.690092533429745,"quality":"inauspicious"},{"name":"Śubha","start":"10:41","end":"12:20","startHours":10.690092533429745,"endHours":12.32879155526658,"quality":"auspicious"},{"name":"Roga","start":"12:20","end":"13:58","startHours":12.32879155526658,"endHours":13.967490577103415,"quality":"inauspicious"},{"name":"Udveg","start":"13:58","end":"15:36","startHours":13.967490577103415,"endHours":15.60618959894025,"quality":"inauspicious"},{"name":"Chala","start":"15:36","end":"17:15","startHours":15.60618959894025,"endHours":17.244888620777086,"quality":"neutral"},{"name":"Labha","start":"17:15","end":"18:53","startHours":17.244888620777086,"endHours":18.88358764261392,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:53","end":"20:15","startHours":18.88358764261392,"endHours":20.244888620777086,"quality":"inauspicious"},{"name":"Chala","start":"20:15","end":"21:36","startHours":20.244888620777086,"endHours":21.60618959894025,"quality":"neutral"},{"name":"Labha","start":"21:36","end":"22:58","startHours":21.60618959894025,"endHours":22.967490577103415,"quality":"auspicious"},{"name":"Amṛta","start":"22:58","end":"00:20","startHours":22.967490577103415,"endHours":24.32879155526658,"quality":"auspicious"},{"name":"Kāla","start":"00:20","end":"01:41","startHours":24.32879155526658,"endHours":25.690092533429745,"quality":"inauspicious"},{"name":"Śubha","start":"01:41","end":"03:03","startHours":25.690092533429745,"endHours":27.05139351159291,"quality":"auspicious"},{"name":"Roga","start":"03:03","end":"04:25","startHours":27.05139351159291,"endHours":28.412694489756074,"quality":"inauspicious"},{"name":"Udveg","start":"04:25","end":"05:46","startHours":28.412694489756074,"endHours":29.77399546791924,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:46","end":"06:46","startHours":5.77399546791924,"endHours":6.77399546791924,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:46","end":"07:46","startHours":6.77399546791924,"endHours":7.77399546791924,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:46","end":"08:46","startHours":7.77399546791924,"endHours":8.773995467919239,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:46","end":"09:46","startHours":8.773995467919239,"endHours":9.773995467919239,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:46","end":"10:46","startHours":9.773995467919239,"endHours":10.773995467919239,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:46","end":"11:46","startHours":10.773995467919239,"endHours":11.773995467919239,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:46","end":"12:46","startHours":11.773995467919239,"endHours":12.773995467919239,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:46","end":"13:46","startHours":12.773995467919239,"endHours":13.773995467919239,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:46","end":"14:46","startHours":13.773995467919239,"endHours":14.773995467919239,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:46","end":"15:46","startHours":14.773995467919239,"endHours":15.773995467919239,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:46","end":"16:46","startHours":15.773995467919239,"endHours":16.77399546791924,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:46","end":"17:46","startHours":16.77399546791924,"endHours":17.77399546791924,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:46","end":"18:46","startHours":17.77399546791924,"endHours":18.77399546791924,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:46","end":"19:46","startHours":18.77399546791924,"endHours":19.77399546791924,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:46","end":"20:46","startHours":19.77399546791924,"endHours":20.77399546791924,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:46","end":"21:46","startHours":20.77399546791924,"endHours":21.77399546791924,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:46","end":"22:46","startHours":21.77399546791924,"endHours":22.77399546791924,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:46","end":"23:46","startHours":22.77399546791924,"endHours":23.77399546791924,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:46","end":"00:46","startHours":23.77399546791924,"endHours":24.77399546791924,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:46","end":"01:46","startHours":24.77399546791924,"endHours":25.77399546791924,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:46","end":"02:46","startHours":25.77399546791924,"endHours":26.77399546791924,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:46","end":"03:46","startHours":26.77399546791924,"endHours":27.77399546791924,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:46","end":"04:46","startHours":27.77399546791924,"endHours":28.77399546791924,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:46","end":"05:46","startHours":28.77399546791924,"endHours":29.77399546791924,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"West","rahuVasa":"South-West","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":12.413897844433379,"eotMinutes":-2.7978933159948465,"ayanamsa":23.345}},"calendars":{"vikram_samvat":2020,"vikram_samvatsara":"Nala","saka_samvat":1885,"saka_samvatsara":"Śobhana","bengali_samvat":1370,"malayalam_era":1139,"nanakshahi_year":494,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Dvitīyā · Vikram 2020 Nala · Śaka 1885 Śobhana"},"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":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[]},"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 21, 1963 CE · Ṛṣikeśa · Vidhyamitra","description":"August 21, 1963 CE for Ṛṣikeśa: Śukla Dvitīyā, sūryodaya 05:46, sūryāsta 18:53.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1963-08-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1963-08-21","sa":"https://sa.vidhyamitra.com/city/rishikesh/1963-08-21","hi":"https://hi.vidhyamitra.com/city/rishikesh/1963-08-21","x-default":"https://vidhyamitra.com/city/rishikesh/1963-08-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T14:36:09.970Z","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":"2026-05-20T14:36:09.970Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T14:36:09.970Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}