{"id":"vidhyamitra:city-day:rishikesh:1978-08-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1978-08-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1978-08-08","date_display":"August 8, 1978 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":1978,"month":8,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443728.770833,"kali_year":5080,"ahargana":1855263.2708,"sun":{"sidereal_longitude":111.0768,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":158.7241,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.6473,"elapsed_within_tithi_degrees":11.6473},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":158.7241,"elapsed_within_degrees":12.0575},"yoga":{"number":21,"name":"Siddha","sum_longitude":269.8009},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"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":1978,"month":8,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2443728.770833,"ahargana":1855263.2708,"kali_year":5080,"ayanamsa_lahiri":23.5541,"grahas":{"sun":{"sidereal_longitude":111.601248,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":156.23424799999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false,"latitude":-0.0392},"mars":{"sidereal_longitude":158.96994799999993,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":129.43424800000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":90.35684800000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"venus":{"sidereal_longitude":156.65844800000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":127.81244800000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":159.2238,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":339.2238,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"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":1978,"month":8,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443728.770833,"kali_year":5080,"ahargana":1855263.2708,"sun":{"sidereal_longitude":111.0768,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":158.7241,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.6473,"elapsed_within_tithi_degrees":11.6473},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":158.7241,"elapsed_within_degrees":12.0575},"yoga":{"number":21,"name":"Siddha","sum_longitude":269.8009},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.039,"elongation":47.647},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.039,"opposition_distance":132.353}},"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":"05:39","sunsetLocal":"19:05","solarNoonLocal":"12:22","dayLengthHours":13.435481276335276,"dayLengthDisplay":"13 Hours 26 Mins 08 Secs","nightLengthDisplay":"10 Hours 33 Mins 52 Secs","moonriseLocal":"09:18","moonsetLocal":"21:24","rahuKala":{"name":"Rāhu Kāla","start":"15:44","end":"17:25","startHours":15.730181606409532,"endHours":17.40961676595144,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:01","end":"10:42","startHours":9.012440968241894,"endHours":10.691876127783804,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:22","end":"14:03","startHours":12.371311287325714,"endHours":14.050746446867622,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:47","end":"09:14","startHours":8.788516280302973,"endHours":9.236365656180816,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:13","end":"06:34","startHours":6.213382369005378,"endHours":6.571661869707652,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:49","startHours":11.923461911447871,"endHours":12.819160663203556,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:52","end":"04:45","startHours":3.8621731456467048,"endHours":4.75787189740239,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:32","end":"05:39","startHours":4.533947209463468,"endHours":5.653570649158075,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:37","end":"15:30","startHours":14.610558166714926,"endHours":15.50625691847061,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:53","end":"19:17","startHours":18.88905192549335,"endHours":19.28905192549335,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:05","end":"19:39","startHours":19.08905192549335,"endHours":19.648863645340654,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:50","end":"20:35","startHours":18.83905192549335,"endHours":20.58905192549335,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:49","startHours":23.92346191144787,"endHours":24.819160663203558,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:39","end":"07:20","startHours":5.653570649158075,"endHours":7.333005808699984,"quality":"inauspicious"},{"name":"Udveg","start":"07:20","end":"09:01","startHours":7.333005808699984,"endHours":9.012440968241894,"quality":"inauspicious"},{"name":"Chala","start":"09:01","end":"10:42","startHours":9.012440968241894,"endHours":10.691876127783804,"quality":"neutral"},{"name":"Labha","start":"10:42","end":"12:22","startHours":10.691876127783804,"endHours":12.371311287325714,"quality":"auspicious"},{"name":"Amṛta","start":"12:22","end":"14:03","startHours":12.371311287325714,"endHours":14.050746446867622,"quality":"auspicious"},{"name":"Kāla","start":"14:03","end":"15:44","startHours":14.050746446867622,"endHours":15.730181606409532,"quality":"inauspicious"},{"name":"Śubha","start":"15:44","end":"17:25","startHours":15.730181606409532,"endHours":17.40961676595144,"quality":"auspicious"},{"name":"Roga","start":"17:25","end":"19:05","startHours":17.40961676595144,"endHours":19.08905192549335,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:05","end":"20:25","startHours":19.08905192549335,"endHours":20.40961676595144,"quality":"inauspicious"},{"name":"Śubha","start":"20:25","end":"21:44","startHours":20.40961676595144,"endHours":21.73018160640953,"quality":"auspicious"},{"name":"Roga","start":"21:44","end":"23:03","startHours":21.73018160640953,"endHours":23.05074644686762,"quality":"inauspicious"},{"name":"Udveg","start":"23:03","end":"00:22","startHours":23.05074644686762,"endHours":24.371311287325714,"quality":"inauspicious"},{"name":"Chala","start":"00:22","end":"01:42","startHours":24.371311287325714,"endHours":25.691876127783804,"quality":"neutral"},{"name":"Labha","start":"01:42","end":"03:01","startHours":25.691876127783804,"endHours":27.012440968241894,"quality":"auspicious"},{"name":"Amṛta","start":"03:01","end":"04:20","startHours":27.012440968241894,"endHours":28.333005808699987,"quality":"auspicious"},{"name":"Kāla","start":"04:20","end":"05:39","startHours":28.333005808699987,"endHours":29.653570649158077,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:39","end":"06:39","startHours":5.653570649158075,"endHours":6.653570649158075,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:39","end":"07:39","startHours":6.653570649158075,"endHours":7.653570649158075,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:39","end":"08:39","startHours":7.653570649158075,"endHours":8.653570649158075,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:39","end":"09:39","startHours":8.653570649158075,"endHours":9.653570649158075,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:39","end":"10:39","startHours":9.653570649158075,"endHours":10.653570649158075,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:39","end":"11:39","startHours":10.653570649158075,"endHours":11.653570649158075,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:39","end":"12:39","startHours":11.653570649158075,"endHours":12.653570649158075,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:39","end":"13:39","startHours":12.653570649158075,"endHours":13.653570649158075,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:39","end":"14:39","startHours":13.653570649158075,"endHours":14.653570649158075,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:39","end":"15:39","startHours":14.653570649158075,"endHours":15.653570649158075,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:39","end":"16:39","startHours":15.653570649158075,"endHours":16.653570649158077,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:39","end":"17:39","startHours":16.653570649158077,"endHours":17.653570649158077,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:39","end":"18:39","startHours":17.653570649158077,"endHours":18.653570649158077,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:39","end":"19:39","startHours":18.653570649158077,"endHours":19.653570649158077,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:39","end":"20:39","startHours":19.653570649158077,"endHours":20.653570649158077,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:39","end":"21:39","startHours":20.653570649158077,"endHours":21.653570649158077,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:39","end":"22:39","startHours":21.653570649158077,"endHours":22.653570649158077,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:39","end":"23:39","startHours":22.653570649158077,"endHours":23.653570649158077,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:39","end":"00:39","startHours":23.653570649158077,"endHours":24.653570649158077,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:39","end":"01:39","startHours":24.653570649158077,"endHours":25.653570649158077,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:39","end":"02:39","startHours":25.653570649158077,"endHours":26.653570649158077,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:39","end":"03:39","startHours":26.653570649158077,"endHours":27.653570649158077,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:39","end":"04:39","startHours":27.653570649158077,"endHours":28.653570649158077,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:39","end":"05:39","startHours":28.653570649158077,"endHours":29.653570649158077,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"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":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"North","anandadiYoga":{"name":"Śubha","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":16.288601226807387,"eotMinutes":-5.349077239542768,"ayanamsa":23.5541}},"calendars":{"vikram_samvat":2035,"vikram_samvatsara":"Prajāpati","saka_samvat":1900,"saka_samvatsara":"Kālayukta","bengali_samvat":1385,"malayalam_era":1154,"nanakshahi_year":509,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Caturthī · Vikram 2035 Prajāpati · Śaka 1900 Kālayukta"},"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},{"id":"angarika-chaturthi","name":"Aṅgāraka Caturthī (Tuesday Caturthī)","name_sanskrit":"अङ्गारक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa + Maṅgala","significance":"Tuesday-Caturthī (rare); supremely auspicious for Maṅgala-doṣa-nivāraṇa.","vrata":true,"detection":{"any_of":[{"tithi_number":4,"vara_name":"Maṅgalavāra (Tuesday)"},{"tithi_number":19,"vara_name":"Maṅgalavāra (Tuesday)"}]},"precedence":3},{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"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 8, 1978 CE · Ṛṣikeśa · Vidhyamitra","description":"August 8, 1978 CE for Ṛṣikeśa: Śukla Caturthī, sūryodaya 05:39, sūryāsta 19:05.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1978-08-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1978-08-08","sa":"https://sa.vidhyamitra.com/city/rishikesh/1978-08-08","hi":"https://hi.vidhyamitra.com/city/rishikesh/1978-08-08","x-default":"https://vidhyamitra.com/city/rishikesh/1978-08-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-19T01:41:18.606Z","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":"2026-05-19T01:41:18.606Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-19T01:41:18.606Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}