{"id":"vidhyamitra:city-day:rishikesh:1987-08-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1987-08-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1987-08-16","date_display":"August 16, 1987 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":1987,"month":8,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447023.770833,"kali_year":5089,"ahargana":1858558.2708,"sun":{"sidereal_longitude":118.3982,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":22.4327,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":264.0345,"elapsed_within_tithi_degrees":0.0345},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3,"moon_longitude":22.4327,"elapsed_within_degrees":9.0994},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":140.8309},"karana":{"half_tithi_index":44,"name":"Bālava"},"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":1987,"month":8,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447023.770833,"ahargana":1858558.2708,"kali_year":5089,"ayanamsa_lahiri":23.6801,"grahas":{"sun":{"sidereal_longitude":118.98415499999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":25.27455500000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false,"latitude":2.7559},"mars":{"sidereal_longitude":122.19055500000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":114.72965499999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":6.744055000000003,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":117.19235500000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":230.54805499999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":344.6388,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":164.6388,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":1987,"month":8,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447023.770833,"kali_year":5089,"ahargana":1858558.2708,"sun":{"sidereal_longitude":118.3982,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":22.4327,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":264.0345,"elapsed_within_tithi_degrees":0.0345},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3,"moon_longitude":22.4327,"elapsed_within_degrees":9.0994},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":140.8309},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.756,"elongation":95.966},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.756,"opposition_distance":84.034}},"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":13.237813819077154,"dayLengthDisplay":"13 Hours 14 Mins 16 Secs","nightLengthDisplay":"10 Hours 45 Mins 44 Secs","moonriseLocal":"23:21","moonsetLocal":"12:51","rahuKala":{"name":"Rāhu Kāla","start":"17:19","end":"18:58","startHours":17.31250444210614,"endHours":18.967231169490784,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:21","end":"14:00","startHours":12.348324259952207,"endHours":14.003050987336852,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:39","end":"17:19","startHours":15.657777714721496,"endHours":17.31250444210614,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:49","end":"09:16","startHours":8.818240574864966,"endHours":9.259501035500872,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:17","end":"06:38","startHours":6.280992926208512,"endHours":6.634001294717236,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:47","startHours":11.907063799316303,"endHours":12.789584720588111,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:58","end":"04:51","startHours":3.9643755078700096,"endHours":4.84689642914182,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:38","end":"05:44","startHours":4.626266198823868,"endHours":5.72941735041363,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:33","end":"15:26","startHours":14.554626563131732,"endHours":15.437147484403543,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:46","end":"19:10","startHours":18.767231169490785,"endHours":19.167231169490783,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:58","end":"19:31","startHours":18.967231169490784,"endHours":19.518806745285666,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:43","end":"20:28","startHours":18.717231169490784,"endHours":20.467231169490784,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:47","startHours":23.9070637993163,"endHours":24.789584720588113,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:44","end":"07:23","startHours":5.72941735041363,"endHours":7.3841440777982745,"quality":"inauspicious"},{"name":"Chala","start":"07:23","end":"09:02","startHours":7.3841440777982745,"endHours":9.038870805182919,"quality":"neutral"},{"name":"Labha","start":"09:02","end":"10:42","startHours":9.038870805182919,"endHours":10.693597532567562,"quality":"auspicious"},{"name":"Amṛta","start":"10:42","end":"12:21","startHours":10.693597532567562,"endHours":12.348324259952207,"quality":"auspicious"},{"name":"Kāla","start":"12:21","end":"14:00","startHours":12.348324259952207,"endHours":14.003050987336852,"quality":"inauspicious"},{"name":"Śubha","start":"14:00","end":"15:39","startHours":14.003050987336852,"endHours":15.657777714721496,"quality":"auspicious"},{"name":"Roga","start":"15:39","end":"17:19","startHours":15.657777714721496,"endHours":17.31250444210614,"quality":"inauspicious"},{"name":"Udveg","start":"17:19","end":"18:58","startHours":17.31250444210614,"endHours":18.967231169490784,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:58","end":"20:19","startHours":18.967231169490784,"endHours":20.31250444210614,"quality":"auspicious"},{"name":"Roga","start":"20:19","end":"21:39","startHours":20.31250444210614,"endHours":21.657777714721497,"quality":"inauspicious"},{"name":"Udveg","start":"21:39","end":"23:00","startHours":21.657777714721497,"endHours":23.003050987336852,"quality":"inauspicious"},{"name":"Chala","start":"23:00","end":"00:21","startHours":23.003050987336852,"endHours":24.348324259952207,"quality":"neutral"},{"name":"Labha","start":"00:21","end":"01:42","startHours":24.348324259952207,"endHours":25.693597532567562,"quality":"auspicious"},{"name":"Amṛta","start":"01:42","end":"03:02","startHours":25.693597532567562,"endHours":27.038870805182917,"quality":"auspicious"},{"name":"Kāla","start":"03:02","end":"04:23","startHours":27.038870805182917,"endHours":28.384144077798275,"quality":"inauspicious"},{"name":"Śubha","start":"04:23","end":"05:44","startHours":28.384144077798275,"endHours":29.72941735041363,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:44","end":"06:44","startHours":5.72941735041363,"endHours":6.72941735041363,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:44","end":"07:44","startHours":6.72941735041363,"endHours":7.72941735041363,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:44","end":"08:44","startHours":7.72941735041363,"endHours":8.72941735041363,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:44","end":"09:44","startHours":8.72941735041363,"endHours":9.72941735041363,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:44","end":"10:44","startHours":9.72941735041363,"endHours":10.72941735041363,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:44","end":"11:44","startHours":10.72941735041363,"endHours":11.72941735041363,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:44","end":"12:44","startHours":11.72941735041363,"endHours":12.72941735041363,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:44","end":"13:44","startHours":12.72941735041363,"endHours":13.72941735041363,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:44","end":"14:44","startHours":13.72941735041363,"endHours":14.72941735041363,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:44","end":"15:44","startHours":14.72941735041363,"endHours":15.72941735041363,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:44","end":"16:44","startHours":15.72941735041363,"endHours":16.72941735041363,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:44","end":"17:44","startHours":16.72941735041363,"endHours":17.72941735041363,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:44","end":"18:44","startHours":17.72941735041363,"endHours":18.72941735041363,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:44","end":"19:44","startHours":18.72941735041363,"endHours":19.72941735041363,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:44","end":"20:44","startHours":19.72941735041363,"endHours":20.72941735041363,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:44","end":"21:44","startHours":20.72941735041363,"endHours":21.72941735041363,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:44","end":"22:44","startHours":21.72941735041363,"endHours":22.72941735041363,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:44","end":"23:44","startHours":22.72941735041363,"endHours":23.72941735041363,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:44","end":"00:44","startHours":23.72941735041363,"endHours":24.72941735041363,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:44","end":"01:44","startHours":24.72941735041363,"endHours":25.72941735041363,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:44","end":"02:44","startHours":25.72941735041363,"endHours":26.72941735041363,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:44","end":"03:44","startHours":26.72941735041363,"endHours":27.72941735041363,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:44","end":"04:44","startHours":27.72941735041363,"endHours":28.72941735041363,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:44","end":"05:44","startHours":28.72941735041363,"endHours":29.72941735041363,"planetary_lord":"Jupiter"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"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":13.958473910273032,"eotMinutes":-3.969855597132357,"ayanamsa":23.6801}},"calendars":{"vikram_samvat":2044,"vikram_samvatsara":"Vikrama","saka_samvat":1909,"saka_samvatsara":"Prabhava","bengali_samvat":1394,"malayalam_era":1163,"nanakshahi_year":518,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Kṛṣṇa Aṣṭamī · Vikram 2044 Vikrama · Śaka 1909 Prabhava"},"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":"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":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","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 16, 1987 CE · Ṛṣikeśa · Vidhyamitra","description":"August 16, 1987 CE for Ṛṣikeśa: Kṛṣṇa Aṣṭamī, sūryodaya 05:44, sūryāsta 18:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1987-08-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1987-08-16","sa":"https://sa.vidhyamitra.com/city/rishikesh/1987-08-16","hi":"https://hi.vidhyamitra.com/city/rishikesh/1987-08-16","x-default":"https://vidhyamitra.com/city/rishikesh/1987-08-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-24T15:03:26.364Z","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":"2026-05-24T15:03:26.364Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-24T15:03:26.364Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}