{"id":"vidhyamitra:city-day:rishikesh:1977-08-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1977-08-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1977-08-16","date_display":"August 16, 1977 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":1977,"month":8,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443371.770833,"kali_year":5079,"ahargana":1854906.2708,"sun":{"sidereal_longitude":118.9599,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":132.3895,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":13.4296,"elapsed_within_tithi_degrees":1.4296},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":132.3895,"elapsed_within_degrees":12.3895},"yoga":{"number":19,"name":"Parigha","sum_longitude":251.3495},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1977,"month":8,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2443371.770833,"ahargana":1854906.2708,"kali_year":5079,"ayanamsa_lahiri":23.5404,"grahas":{"sun":{"sidereal_longitude":119.52488800000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":133.24588800000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false,"latitude":-3.2217},"mars":{"sidereal_longitude":56.64088800000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":145.81518800000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":65.50188800000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":81.99928799999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":117.129888,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":178.1393,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":358.1393,"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":1977,"month":8,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443371.770833,"kali_year":5079,"ahargana":1854906.2708,"sun":{"sidereal_longitude":118.9599,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":132.3895,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":13.4296,"elapsed_within_tithi_degrees":1.4296},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":132.3895,"elapsed_within_degrees":12.3895},"yoga":{"number":19,"name":"Parigha","sum_longitude":251.3495},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.222,"elongation":13.43},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.222,"opposition_distance":166.57}},"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":"05:44","sunsetLocal":"18:58","solarNoonLocal":"12:21","dayLengthHours":13.226858753352651,"dayLengthDisplay":"13 Hours 13 Mins 37 Secs","nightLengthDisplay":"10 Hours 46 Mins 23 Secs","moonriseLocal":"06:52","moonsetLocal":"19:40","rahuKala":{"name":"Rāhu Kāla","start":"15:39","end":"17:19","startHours":15.65503894829037,"endHours":17.308396292459452,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:02","end":"10:42","startHours":9.041609571614044,"endHours":10.694966915783127,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:21","end":"14:00","startHours":12.348324259952207,"endHours":14.001681604121288,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:49","end":"09:16","startHours":8.821161925724834,"endHours":9.262057217503255,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:17","end":"06:38","startHours":6.286013997998909,"endHours":6.638730231421646,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:47","startHours":11.907428968173786,"endHours":12.789219551730628,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:58","end":"04:51","startHours":3.9713137161621948,"endHours":4.853104299719038,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:38","end":"05:44","startHours":4.632656653829827,"endHours":5.7348948832758815,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:33","end":"15:26","startHours":14.552800718844317,"endHours":15.434591302401161,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:46","end":"19:10","startHours":18.761753636628534,"endHours":19.161753636628532,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:58","end":"19:31","startHours":18.961753636628533,"endHours":19.51287275135156,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:43","end":"20:28","startHours":18.711753636628533,"endHours":20.461753636628533,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:47","startHours":23.907428968173786,"endHours":24.78921955173063,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:44","end":"07:23","startHours":5.7348948832758815,"endHours":7.388252227444963,"quality":"inauspicious"},{"name":"Udveg","start":"07:23","end":"09:02","startHours":7.388252227444963,"endHours":9.041609571614044,"quality":"inauspicious"},{"name":"Chala","start":"09:02","end":"10:42","startHours":9.041609571614044,"endHours":10.694966915783127,"quality":"neutral"},{"name":"Labha","start":"10:42","end":"12:21","startHours":10.694966915783127,"endHours":12.348324259952207,"quality":"auspicious"},{"name":"Amṛta","start":"12:21","end":"14:00","startHours":12.348324259952207,"endHours":14.001681604121288,"quality":"auspicious"},{"name":"Kāla","start":"14:00","end":"15:39","startHours":14.001681604121288,"endHours":15.65503894829037,"quality":"inauspicious"},{"name":"Śubha","start":"15:39","end":"17:19","startHours":15.65503894829037,"endHours":17.308396292459452,"quality":"auspicious"},{"name":"Roga","start":"17:19","end":"18:58","startHours":17.308396292459452,"endHours":18.961753636628533,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:58","end":"20:19","startHours":18.961753636628533,"endHours":20.308396292459452,"quality":"inauspicious"},{"name":"Śubha","start":"20:19","end":"21:39","startHours":20.308396292459452,"endHours":21.65503894829037,"quality":"auspicious"},{"name":"Roga","start":"21:39","end":"23:00","startHours":21.65503894829037,"endHours":23.001681604121288,"quality":"inauspicious"},{"name":"Udveg","start":"23:00","end":"00:21","startHours":23.001681604121288,"endHours":24.348324259952207,"quality":"inauspicious"},{"name":"Chala","start":"00:21","end":"01:42","startHours":24.348324259952207,"endHours":25.694966915783127,"quality":"neutral"},{"name":"Labha","start":"01:42","end":"03:02","startHours":25.694966915783127,"endHours":27.041609571614046,"quality":"auspicious"},{"name":"Amṛta","start":"03:02","end":"04:23","startHours":27.041609571614046,"endHours":28.388252227444962,"quality":"auspicious"},{"name":"Kāla","start":"04:23","end":"05:44","startHours":28.388252227444962,"endHours":29.73489488327588,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:44","end":"06:44","startHours":5.7348948832758815,"endHours":6.7348948832758815,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:44","end":"07:44","startHours":6.7348948832758815,"endHours":7.7348948832758815,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:44","end":"08:44","startHours":7.7348948832758815,"endHours":8.734894883275881,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:44","end":"09:44","startHours":8.734894883275881,"endHours":9.734894883275881,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:44","end":"10:44","startHours":9.734894883275881,"endHours":10.734894883275881,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:44","end":"11:44","startHours":10.734894883275881,"endHours":11.734894883275881,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:44","end":"12:44","startHours":11.734894883275881,"endHours":12.734894883275881,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:44","end":"13:44","startHours":12.734894883275881,"endHours":13.734894883275881,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:44","end":"14:44","startHours":13.734894883275881,"endHours":14.734894883275881,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:44","end":"15:44","startHours":14.734894883275881,"endHours":15.734894883275881,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:44","end":"16:44","startHours":15.734894883275881,"endHours":16.73489488327588,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:44","end":"17:44","startHours":16.73489488327588,"endHours":17.73489488327588,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:44","end":"18:44","startHours":17.73489488327588,"endHours":18.73489488327588,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:44","end":"19:44","startHours":18.73489488327588,"endHours":19.73489488327588,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:44","end":"20:44","startHours":19.73489488327588,"endHours":20.73489488327588,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:44","end":"21:44","startHours":20.73489488327588,"endHours":21.73489488327588,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:44","end":"22:44","startHours":21.73489488327588,"endHours":22.73489488327588,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:44","end":"23:44","startHours":22.73489488327588,"endHours":23.73489488327588,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:44","end":"00:44","startHours":23.73489488327588,"endHours":24.73489488327588,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:44","end":"01:44","startHours":24.73489488327588,"endHours":25.73489488327588,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:44","end":"02:44","startHours":25.73489488327588,"endHours":26.73489488327588,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:44","end":"03:44","startHours":26.73489488327588,"endHours":27.73489488327588,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:44","end":"04:44","startHours":27.73489488327588,"endHours":28.73489488327588,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:44","end":"05:44","startHours":28.73489488327588,"endHours":29.73489488327588,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","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":"North","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":13.827483621290051,"eotMinutes":-3.969855597132357,"ayanamsa":23.5404}},"calendars":{"vikram_samvat":2034,"vikram_samvatsara":"Pramoda","saka_samvat":1899,"saka_samvatsara":"Piṅgala","bengali_samvat":1384,"malayalam_era":1153,"nanakshahi_year":508,"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 Dvitīyā · Vikram 2034 Pramoda · Śaka 1899 Piṅgala"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 16, 1977 CE · Ṛṣikeśa · Vidhyamitra","description":"August 16, 1977 CE for Ṛṣikeśa: Śukla Dvitīyā, sūryodaya 05:44, sūryāsta 18:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1977-08-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1977-08-16","sa":"https://sa.vidhyamitra.com/city/rishikesh/1977-08-16","hi":"https://hi.vidhyamitra.com/city/rishikesh/1977-08-16","x-default":"https://vidhyamitra.com/city/rishikesh/1977-08-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T10:12:41.934Z","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":"2026-05-31T10:12:41.934Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T10:12:41.934Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}